effect
stringclasses 48
values | original_source_type
stringlengths 0
23k
| opens_and_abbrevs
listlengths 2
92
| isa_cross_project_example
bool 1
class | source_definition
stringlengths 9
57.9k
| partial_definition
stringlengths 7
23.3k
| is_div
bool 2
classes | is_type
null | is_proof
bool 2
classes | completed_definiton
stringlengths 1
250k
| dependencies
dict | effect_flags
sequencelengths 0
2
| ideal_premises
sequencelengths 0
236
| mutual_with
sequencelengths 0
11
| file_context
stringlengths 0
407k
| interleaved
bool 1
class | is_simply_typed
bool 2
classes | file_name
stringlengths 5
48
| vconfig
dict | is_simple_lemma
null | source_type
stringlengths 10
23k
| proof_features
sequencelengths 0
1
| name
stringlengths 8
95
| source
dict | verbose_type
stringlengths 1
7.42k
| source_range
dict |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Prims.Tot | [
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words.Seq_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.X64.CPU_Features_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let uint8_p = B.buffer UInt8.t | let uint8_p = | false | null | false | B.buffer UInt8.t | {
"checked_file": "Vale.Wrapper.X64.AES.fsti.checked",
"dependencies": [
"Vale.X64.CPU_Features_s.fst.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Def.Words_s.fsti.checked",
"Vale.Def.Words.Seq_s.fsti.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt8.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked"
],
"interface_file": false,
"source_file": "Vale.Wrapper.X64.AES.fsti"
} | [
"total"
] | [
"LowStar.Buffer.buffer",
"FStar.UInt8.t"
] | [] | module Vale.Wrapper.X64.AES
open Vale.X64.CPU_Features_s
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open FStar.Mul
open Vale.Def.Words_s
open Vale.Def.Words.Seq_s
open Vale.AES.AES_s
open Vale.Interop.Base
open Vale.Def.Types_s | false | true | Vale.Wrapper.X64.AES.fsti | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val uint8_p : Type0 | [] | Vale.Wrapper.X64.AES.uint8_p | {
"file_name": "vale/code/arch/x64/interop/Vale.Wrapper.X64.AES.fsti",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Type0 | {
"end_col": 30,
"end_line": 17,
"start_col": 14,
"start_line": 17
} |
|
Prims.Tot | [
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words.Seq_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.X64.CPU_Features_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key_length (a: algorithm { a = AES_128 \/ a = AES_256 }) =
match a with
| AES_128 -> 16
| AES_256 -> 32 | let key_length (a: algorithm{a = AES_128 \/ a = AES_256}) = | false | null | false | match a with
| AES_128 -> 16
| AES_256 -> 32 | {
"checked_file": "Vale.Wrapper.X64.AES.fsti.checked",
"dependencies": [
"Vale.X64.CPU_Features_s.fst.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Def.Words_s.fsti.checked",
"Vale.Def.Words.Seq_s.fsti.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt8.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked"
],
"interface_file": false,
"source_file": "Vale.Wrapper.X64.AES.fsti"
} | [
"total"
] | [
"Vale.AES.AES_common_s.algorithm",
"Prims.l_or",
"Prims.b2t",
"Prims.op_Equality",
"Vale.AES.AES_common_s.AES_128",
"Vale.AES.AES_common_s.AES_256",
"Prims.int"
] | [] | module Vale.Wrapper.X64.AES
open Vale.X64.CPU_Features_s
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open FStar.Mul
open Vale.Def.Words_s
open Vale.Def.Words.Seq_s
open Vale.AES.AES_s
open Vale.Interop.Base
open Vale.Def.Types_s
unfold
let uint8_p = B.buffer UInt8.t
let length_aux (b:uint8_p) : Lemma
(requires B.length b = 176)
(ensures DV.length (get_downview b) % 16 = 0) =
let db = get_downview b in
DV.length_eq db
let length_aux2 (b:uint8_p) : Lemma
(requires B.length b = 240)
(ensures DV.length (get_downview b) % 16 = 0) =
let db = get_downview b in
DV.length_eq db
inline_for_extraction unfold
let key_offset (a: algorithm { a = AES_128 \/ a = AES_256 }) =
match a with
| AES_128 -> 176
| AES_256 -> 240
inline_for_extraction unfold | false | false | Vale.Wrapper.X64.AES.fsti | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key_length : a:
Vale.AES.AES_common_s.algorithm
{a = Vale.AES.AES_common_s.AES_128 \/ a = Vale.AES.AES_common_s.AES_256}
-> Prims.int | [] | Vale.Wrapper.X64.AES.key_length | {
"file_name": "vale/code/arch/x64/interop/Vale.Wrapper.X64.AES.fsti",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} |
a:
Vale.AES.AES_common_s.algorithm
{a = Vale.AES.AES_common_s.AES_128 \/ a = Vale.AES.AES_common_s.AES_256}
-> Prims.int | {
"end_col": 17,
"end_line": 41,
"start_col": 2,
"start_line": 39
} |
|
Prims.Tot | [
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words.Seq_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.X64.CPU_Features_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key_offset (a: algorithm { a = AES_128 \/ a = AES_256 }) =
match a with
| AES_128 -> 176
| AES_256 -> 240 | let key_offset (a: algorithm{a = AES_128 \/ a = AES_256}) = | false | null | false | match a with
| AES_128 -> 176
| AES_256 -> 240 | {
"checked_file": "Vale.Wrapper.X64.AES.fsti.checked",
"dependencies": [
"Vale.X64.CPU_Features_s.fst.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Def.Words_s.fsti.checked",
"Vale.Def.Words.Seq_s.fsti.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt8.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked"
],
"interface_file": false,
"source_file": "Vale.Wrapper.X64.AES.fsti"
} | [
"total"
] | [
"Vale.AES.AES_common_s.algorithm",
"Prims.l_or",
"Prims.b2t",
"Prims.op_Equality",
"Vale.AES.AES_common_s.AES_128",
"Vale.AES.AES_common_s.AES_256",
"Prims.int"
] | [] | module Vale.Wrapper.X64.AES
open Vale.X64.CPU_Features_s
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open FStar.Mul
open Vale.Def.Words_s
open Vale.Def.Words.Seq_s
open Vale.AES.AES_s
open Vale.Interop.Base
open Vale.Def.Types_s
unfold
let uint8_p = B.buffer UInt8.t
let length_aux (b:uint8_p) : Lemma
(requires B.length b = 176)
(ensures DV.length (get_downview b) % 16 = 0) =
let db = get_downview b in
DV.length_eq db
let length_aux2 (b:uint8_p) : Lemma
(requires B.length b = 240)
(ensures DV.length (get_downview b) % 16 = 0) =
let db = get_downview b in
DV.length_eq db
inline_for_extraction unfold | false | false | Vale.Wrapper.X64.AES.fsti | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key_offset : a:
Vale.AES.AES_common_s.algorithm
{a = Vale.AES.AES_common_s.AES_128 \/ a = Vale.AES.AES_common_s.AES_256}
-> Prims.int | [] | Vale.Wrapper.X64.AES.key_offset | {
"file_name": "vale/code/arch/x64/interop/Vale.Wrapper.X64.AES.fsti",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} |
a:
Vale.AES.AES_common_s.algorithm
{a = Vale.AES.AES_common_s.AES_128 \/ a = Vale.AES.AES_common_s.AES_256}
-> Prims.int | {
"end_col": 18,
"end_line": 35,
"start_col": 2,
"start_line": 33
} |
|
FStar.Pervasives.Lemma | val length_aux2 (b: uint8_p)
: Lemma (requires B.length b = 240) (ensures DV.length (get_downview b) % 16 = 0) | [
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words.Seq_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.X64.CPU_Features_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let length_aux2 (b:uint8_p) : Lemma
(requires B.length b = 240)
(ensures DV.length (get_downview b) % 16 = 0) =
let db = get_downview b in
DV.length_eq db | val length_aux2 (b: uint8_p)
: Lemma (requires B.length b = 240) (ensures DV.length (get_downview b) % 16 = 0)
let length_aux2 (b: uint8_p)
: Lemma (requires B.length b = 240) (ensures DV.length (get_downview b) % 16 = 0) = | false | null | true | let db = get_downview b in
DV.length_eq db | {
"checked_file": "Vale.Wrapper.X64.AES.fsti.checked",
"dependencies": [
"Vale.X64.CPU_Features_s.fst.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Def.Words_s.fsti.checked",
"Vale.Def.Words.Seq_s.fsti.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt8.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked"
],
"interface_file": false,
"source_file": "Vale.Wrapper.X64.AES.fsti"
} | [
"lemma"
] | [
"Vale.Wrapper.X64.AES.uint8_p",
"LowStar.BufferView.Down.length_eq",
"FStar.UInt8.t",
"LowStar.BufferView.Down.buffer",
"Vale.Interop.Types.get_downview",
"Vale.Arch.HeapTypes_s.TUInt8",
"LowStar.Buffer.trivial_preorder",
"Prims.unit",
"Prims.b2t",
"Prims.op_Equality",
"Prims.int",
"LowStar.Monotonic.Buffer.length",
"Prims.squash",
"Prims.op_Modulus",
"LowStar.BufferView.Down.length",
"Prims.Nil",
"FStar.Pervasives.pattern"
] | [] | module Vale.Wrapper.X64.AES
open Vale.X64.CPU_Features_s
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open FStar.Mul
open Vale.Def.Words_s
open Vale.Def.Words.Seq_s
open Vale.AES.AES_s
open Vale.Interop.Base
open Vale.Def.Types_s
unfold
let uint8_p = B.buffer UInt8.t
let length_aux (b:uint8_p) : Lemma
(requires B.length b = 176)
(ensures DV.length (get_downview b) % 16 = 0) =
let db = get_downview b in
DV.length_eq db
let length_aux2 (b:uint8_p) : Lemma | false | false | Vale.Wrapper.X64.AES.fsti | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val length_aux2 (b: uint8_p)
: Lemma (requires B.length b = 240) (ensures DV.length (get_downview b) % 16 = 0) | [] | Vale.Wrapper.X64.AES.length_aux2 | {
"file_name": "vale/code/arch/x64/interop/Vale.Wrapper.X64.AES.fsti",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | b: Vale.Wrapper.X64.AES.uint8_p
-> FStar.Pervasives.Lemma (requires LowStar.Monotonic.Buffer.length b = 240)
(ensures LowStar.BufferView.Down.length (Vale.Interop.Types.get_downview b) % 16 = 0) | {
"end_col": 19,
"end_line": 29,
"start_col": 49,
"start_line": 27
} |
FStar.Pervasives.Lemma | val length_aux (b: uint8_p)
: Lemma (requires B.length b = 176) (ensures DV.length (get_downview b) % 16 = 0) | [
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words.Seq_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.X64.CPU_Features_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let length_aux (b:uint8_p) : Lemma
(requires B.length b = 176)
(ensures DV.length (get_downview b) % 16 = 0) =
let db = get_downview b in
DV.length_eq db | val length_aux (b: uint8_p)
: Lemma (requires B.length b = 176) (ensures DV.length (get_downview b) % 16 = 0)
let length_aux (b: uint8_p)
: Lemma (requires B.length b = 176) (ensures DV.length (get_downview b) % 16 = 0) = | false | null | true | let db = get_downview b in
DV.length_eq db | {
"checked_file": "Vale.Wrapper.X64.AES.fsti.checked",
"dependencies": [
"Vale.X64.CPU_Features_s.fst.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Def.Words_s.fsti.checked",
"Vale.Def.Words.Seq_s.fsti.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt8.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked"
],
"interface_file": false,
"source_file": "Vale.Wrapper.X64.AES.fsti"
} | [
"lemma"
] | [
"Vale.Wrapper.X64.AES.uint8_p",
"LowStar.BufferView.Down.length_eq",
"FStar.UInt8.t",
"LowStar.BufferView.Down.buffer",
"Vale.Interop.Types.get_downview",
"Vale.Arch.HeapTypes_s.TUInt8",
"LowStar.Buffer.trivial_preorder",
"Prims.unit",
"Prims.b2t",
"Prims.op_Equality",
"Prims.int",
"LowStar.Monotonic.Buffer.length",
"Prims.squash",
"Prims.op_Modulus",
"LowStar.BufferView.Down.length",
"Prims.Nil",
"FStar.Pervasives.pattern"
] | [] | module Vale.Wrapper.X64.AES
open Vale.X64.CPU_Features_s
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open FStar.Mul
open Vale.Def.Words_s
open Vale.Def.Words.Seq_s
open Vale.AES.AES_s
open Vale.Interop.Base
open Vale.Def.Types_s
unfold
let uint8_p = B.buffer UInt8.t
let length_aux (b:uint8_p) : Lemma | false | false | Vale.Wrapper.X64.AES.fsti | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val length_aux (b: uint8_p)
: Lemma (requires B.length b = 176) (ensures DV.length (get_downview b) % 16 = 0) | [] | Vale.Wrapper.X64.AES.length_aux | {
"file_name": "vale/code/arch/x64/interop/Vale.Wrapper.X64.AES.fsti",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | b: Vale.Wrapper.X64.AES.uint8_p
-> FStar.Pervasives.Lemma (requires LowStar.Monotonic.Buffer.length b = 176)
(ensures LowStar.BufferView.Down.length (Vale.Interop.Types.get_downview b) % 16 = 0) | {
"end_col": 19,
"end_line": 23,
"start_col": 49,
"start_line": 21
} |
Prims.Tot | [
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words.Seq_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Words_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.X64.CPU_Features_s",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Wrapper.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key_expansion_st (a: algorithm { a = AES_128 \/ a = AES_256 }) =
(input_key_b:uint8_p) ->
(output_key_expansion_b:uint8_p) ->
Stack unit
(requires fun h0 ->
B.disjoint input_key_b output_key_expansion_b /\
B.live h0 input_key_b /\ B.live h0 output_key_expansion_b /\
B.length input_key_b = key_length a /\
B.length output_key_expansion_b = key_offset a /\
aesni_enabled && avx_enabled && sse_enabled)
(ensures fun h0 _ h1 ->
B.modifies (B.loc_buffer output_key_expansion_b) h0 h1 /\
(let key = seq_nat8_to_seq_nat32_LE (seq_uint8_to_seq_nat8 (B.as_seq h0 input_key_b)) in
Seq.equal (B.as_seq h1 output_key_expansion_b)
(seq_nat8_to_seq_uint8 (le_seq_quad32_to_bytes (key_to_round_keys_LE a key))))) | let key_expansion_st (a: algorithm{a = AES_128 \/ a = AES_256}) = | false | null | false | input_key_b: uint8_p -> output_key_expansion_b: uint8_p
-> Stack unit
(requires
fun h0 ->
B.disjoint input_key_b output_key_expansion_b /\ B.live h0 input_key_b /\
B.live h0 output_key_expansion_b /\ B.length input_key_b = key_length a /\
B.length output_key_expansion_b = key_offset a /\
aesni_enabled && avx_enabled && sse_enabled)
(ensures
fun h0 _ h1 ->
B.modifies (B.loc_buffer output_key_expansion_b) h0 h1 /\
(let key = seq_nat8_to_seq_nat32_LE (seq_uint8_to_seq_nat8 (B.as_seq h0 input_key_b)) in
Seq.equal (B.as_seq h1 output_key_expansion_b)
(seq_nat8_to_seq_uint8 (le_seq_quad32_to_bytes (key_to_round_keys_LE a key))))) | {
"checked_file": "Vale.Wrapper.X64.AES.fsti.checked",
"dependencies": [
"Vale.X64.CPU_Features_s.fst.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Def.Words_s.fsti.checked",
"Vale.Def.Words.Seq_s.fsti.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt8.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked"
],
"interface_file": false,
"source_file": "Vale.Wrapper.X64.AES.fsti"
} | [
"total"
] | [
"Vale.AES.AES_common_s.algorithm",
"Prims.l_or",
"Prims.b2t",
"Prims.op_Equality",
"Vale.AES.AES_common_s.AES_128",
"Vale.AES.AES_common_s.AES_256",
"Vale.Wrapper.X64.AES.uint8_p",
"Prims.unit",
"FStar.Monotonic.HyperStack.mem",
"Prims.l_and",
"LowStar.Monotonic.Buffer.disjoint",
"FStar.UInt8.t",
"LowStar.Buffer.trivial_preorder",
"LowStar.Monotonic.Buffer.live",
"Prims.int",
"LowStar.Monotonic.Buffer.length",
"Vale.Wrapper.X64.AES.key_length",
"Vale.Wrapper.X64.AES.key_offset",
"Prims.op_AmpAmp",
"Vale.X64.CPU_Features_s.aesni_enabled",
"Vale.X64.CPU_Features_s.avx_enabled",
"Vale.X64.CPU_Features_s.sse_enabled",
"LowStar.Monotonic.Buffer.modifies",
"LowStar.Monotonic.Buffer.loc_buffer",
"FStar.Seq.Base.equal",
"LowStar.Monotonic.Buffer.as_seq",
"Vale.Def.Words.Seq_s.seq_nat8_to_seq_uint8",
"Vale.Def.Types_s.le_seq_quad32_to_bytes",
"Vale.AES.AES_s.key_to_round_keys_LE",
"FStar.Seq.Base.seq",
"Vale.Def.Words_s.nat32",
"Vale.Def.Words.Seq_s.seq_nat8_to_seq_nat32_LE",
"Vale.Def.Words.Seq_s.seq_uint8_to_seq_nat8"
] | [] | module Vale.Wrapper.X64.AES
open Vale.X64.CPU_Features_s
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open FStar.Mul
open Vale.Def.Words_s
open Vale.Def.Words.Seq_s
open Vale.AES.AES_s
open Vale.Interop.Base
open Vale.Def.Types_s
unfold
let uint8_p = B.buffer UInt8.t
let length_aux (b:uint8_p) : Lemma
(requires B.length b = 176)
(ensures DV.length (get_downview b) % 16 = 0) =
let db = get_downview b in
DV.length_eq db
let length_aux2 (b:uint8_p) : Lemma
(requires B.length b = 240)
(ensures DV.length (get_downview b) % 16 = 0) =
let db = get_downview b in
DV.length_eq db
inline_for_extraction unfold
let key_offset (a: algorithm { a = AES_128 \/ a = AES_256 }) =
match a with
| AES_128 -> 176
| AES_256 -> 240
inline_for_extraction unfold
let key_length (a: algorithm { a = AES_128 \/ a = AES_256 }) =
match a with
| AES_128 -> 16
| AES_256 -> 32
inline_for_extraction | false | false | Vale.Wrapper.X64.AES.fsti | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key_expansion_st : a:
Vale.AES.AES_common_s.algorithm
{a = Vale.AES.AES_common_s.AES_128 \/ a = Vale.AES.AES_common_s.AES_256}
-> Type0 | [] | Vale.Wrapper.X64.AES.key_expansion_st | {
"file_name": "vale/code/arch/x64/interop/Vale.Wrapper.X64.AES.fsti",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} |
a:
Vale.AES.AES_common_s.algorithm
{a = Vale.AES.AES_common_s.AES_128 \/ a = Vale.AES.AES_common_s.AES_256}
-> Type0 | {
"end_col": 88,
"end_line": 62,
"start_col": 2,
"start_line": 45
} |
|
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret}) | let t128_no_mod = | false | null | false | TD_Buffer TUInt8 TUInt128 ({ modified = false; strict_disjointness = false; taint = MS.Secret }) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Vale.Interop.Base.TD_Buffer",
"Vale.Arch.HeapTypes_s.TUInt8",
"Vale.Arch.HeapTypes_s.TUInt128",
"Vale.Interop.Base.Mkbuffer_qualifiers",
"Vale.Arch.HeapTypes_s.Secret"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val t128_no_mod : Vale.Interop.Base.td | [] | Vale.Stdcalls.X64.AesHash.t128_no_mod | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Vale.Interop.Base.td | {
"end_col": 106,
"end_line": 40,
"start_col": 18,
"start_line": 40
} |
|
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq | let t128_mod = | false | null | false | TD_Buffer TUInt8 TUInt128 default_bq | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Vale.Interop.Base.TD_Buffer",
"Vale.Arch.HeapTypes_s.TUInt8",
"Vale.Arch.HeapTypes_s.TUInt128",
"Vale.Interop.Base.default_bq"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128 | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val t128_mod : Vale.Interop.Base.td | [] | Vale.Stdcalls.X64.AesHash.t128_mod | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Vale.Interop.Base.td | {
"end_col": 51,
"end_line": 38,
"start_col": 15,
"start_line": 38
} |
|
Prims.Tot | val key128_pre: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) | val key128_pre: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom
let key128_pre: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom = | false | null | false | fun
(s: Ghost.erased (Seq.seq nat32))
(c: V.va_code)
(input_b: b128)
(output_b: b128)
(va_s0: V.va_state)
->
GF.va_req_Keyhash_init c
va_s0
IA.win
AES_128
(Ghost.reveal s)
(as_vale_buffer input_b)
(as_vale_buffer output_b) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.X64.Decls.va_code",
"Vale.Stdcalls.X64.AesHash.b128",
"Vale.X64.Decls.va_state",
"Vale.AES.X64.GF128_Init.va_req_Keyhash_init",
"Vale.Interop.Assumptions.win",
"Vale.AES.AES_common_s.AES_128",
"FStar.Ghost.reveal",
"Vale.X64.MemoryAdapters.as_vale_buffer",
"Vale.Arch.HeapTypes_s.TUInt8",
"Vale.Arch.HeapTypes_s.TUInt128",
"Prims.prop"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key128_pre: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom | [] | Vale.Stdcalls.X64.AesHash.key128_pre | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Words_s.nat32)
-> Vale.AsLowStar.ValeSig.vale_pre Vale.Stdcalls.X64.AesHash.dom | {
"end_col": 58,
"end_line": 57,
"start_col": 2,
"start_line": 51
} |
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let uint64 = UInt64.t | let uint64 = | false | null | false | UInt64.t | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.UInt64.t"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val uint64 : Prims.eqtype | [] | Vale.Stdcalls.X64.AesHash.uint64 | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Prims.eqtype | {
"end_col": 21,
"end_line": 27,
"start_col": 13,
"start_line": 27
} |
|
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let b128 = buf_t TUInt8 TUInt128 | let b128 = | false | null | false | buf_t TUInt8 TUInt128 | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Vale.Interop.Base.buf_t",
"Vale.Arch.HeapTypes_s.TUInt8",
"Vale.Arch.HeapTypes_s.TUInt128"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val b128 : Type0 | [] | Vale.Stdcalls.X64.AesHash.b128 | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Type0 | {
"end_col": 32,
"end_line": 36,
"start_col": 11,
"start_line": 36
} |
|
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let code_key128 = GF.va_code_Keyhash_init IA.win AES_128 | let code_key128 = | false | null | false | GF.va_code_Keyhash_init IA.win AES_128 | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Vale.AES.X64.GF128_Init.va_code_Keyhash_init",
"Vale.Interop.Assumptions.win",
"Vale.AES.AES_common_s.AES_128"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s) | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val code_key128 : Vale.X64.Decls.va_code | [] | Vale.Stdcalls.X64.AesHash.code_key128 | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Vale.X64.Decls.va_code | {
"end_col": 56,
"end_line": 101,
"start_col": 18,
"start_line": 101
} |
|
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let code_key256 = GF.va_code_Keyhash_init IA.win AES_256 | let code_key256 = | false | null | false | GF.va_code_Keyhash_init IA.win AES_256 | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Vale.AES.X64.GF128_Init.va_code_Keyhash_init",
"Vale.Interop.Assumptions.win",
"Vale.AES.AES_common_s.AES_256"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key256_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key256_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key256_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key256_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key256_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key256_pre s) (key256_post s)) (key256_lemma' s) | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val code_key256 : Vale.X64.Decls.va_code | [] | Vale.Stdcalls.X64.AesHash.code_key256 | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Vale.X64.Decls.va_code | {
"end_col": 56,
"end_line": 177,
"start_col": 18,
"start_line": 177
} |
|
Prims.Tot | val key128_post: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f | val key128_post: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom
let key128_post: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom = | false | null | false | fun
(s: Ghost.erased (Seq.seq nat32))
(c: V.va_code)
(input_b: b128)
(output_b: b128)
(va_s0: V.va_state)
(va_s1: V.va_state)
(f: V.va_fuel)
->
GF.va_ens_Keyhash_init c
va_s0
IA.win
AES_128
(Ghost.reveal s)
(as_vale_buffer input_b)
(as_vale_buffer output_b)
va_s1
f | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.X64.Decls.va_code",
"Vale.Stdcalls.X64.AesHash.b128",
"Vale.X64.Decls.va_state",
"Vale.X64.Decls.va_fuel",
"Vale.AES.X64.GF128_Init.va_ens_Keyhash_init",
"Vale.Interop.Assumptions.win",
"Vale.AES.AES_common_s.AES_128",
"FStar.Ghost.reveal",
"Vale.X64.MemoryAdapters.as_vale_buffer",
"Vale.Arch.HeapTypes_s.TUInt8",
"Vale.Arch.HeapTypes_s.TUInt128",
"Prims.prop"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key128_post: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom | [] | Vale.Stdcalls.X64.AesHash.key128_post | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Words_s.nat32)
-> Vale.AsLowStar.ValeSig.vale_post Vale.Stdcalls.X64.AesHash.dom | {
"end_col": 66,
"end_line": 69,
"start_col": 2,
"start_line": 61
} |
Prims.Tot | val key256_pre: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key256_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) | val key256_pre: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom
let key256_pre: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom = | false | null | false | fun
(s: Ghost.erased (Seq.seq nat32))
(c: V.va_code)
(input_b: b128)
(output_b: b128)
(va_s0: V.va_state)
->
GF.va_req_Keyhash_init c
va_s0
IA.win
AES_256
(Ghost.reveal s)
(as_vale_buffer input_b)
(as_vale_buffer output_b) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.X64.Decls.va_code",
"Vale.Stdcalls.X64.AesHash.b128",
"Vale.X64.Decls.va_state",
"Vale.AES.X64.GF128_Init.va_req_Keyhash_init",
"Vale.Interop.Assumptions.win",
"Vale.AES.AES_common_s.AES_256",
"FStar.Ghost.reveal",
"Vale.X64.MemoryAdapters.as_vale_buffer",
"Vale.Arch.HeapTypes_s.TUInt8",
"Vale.Arch.HeapTypes_s.TUInt128",
"Prims.prop"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key256_pre: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom | [] | Vale.Stdcalls.X64.AesHash.key256_pre | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Words_s.nat32)
-> Vale.AsLowStar.ValeSig.vale_pre Vale.Stdcalls.X64.AesHash.dom | {
"end_col": 58,
"end_line": 133,
"start_col": 2,
"start_line": 127
} |
Prims.Tot | val key256_post: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key256_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f | val key256_post: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom
let key256_post: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom = | false | null | false | fun
(s: Ghost.erased (Seq.seq nat32))
(c: V.va_code)
(input_b: b128)
(output_b: b128)
(va_s0: V.va_state)
(va_s1: V.va_state)
(f: V.va_fuel)
->
GF.va_ens_Keyhash_init c
va_s0
IA.win
AES_256
(Ghost.reveal s)
(as_vale_buffer input_b)
(as_vale_buffer output_b)
va_s1
f | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.X64.Decls.va_code",
"Vale.Stdcalls.X64.AesHash.b128",
"Vale.X64.Decls.va_state",
"Vale.X64.Decls.va_fuel",
"Vale.AES.X64.GF128_Init.va_ens_Keyhash_init",
"Vale.Interop.Assumptions.win",
"Vale.AES.AES_common_s.AES_256",
"FStar.Ghost.reveal",
"Vale.X64.MemoryAdapters.as_vale_buffer",
"Vale.Arch.HeapTypes_s.TUInt8",
"Vale.Arch.HeapTypes_s.TUInt128",
"Prims.prop"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key256_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key256_post: (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom | [] | Vale.Stdcalls.X64.AesHash.key256_post | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Words_s.nat32)
-> Vale.AsLowStar.ValeSig.vale_post Vale.Stdcalls.X64.AesHash.dom | {
"end_col": 66,
"end_line": 145,
"start_col": 2,
"start_line": 137
} |
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let aes128_keyhash_init //: normal ((s:Ghost.erased (Seq.seq nat32)) -> lowstar_key128_t s)
= as_normal_t #((s:Ghost.erased (Seq.seq nat32)) -> lowstar_key128_t s) (fun (s:Ghost.erased (Seq.seq nat32)) -> lowstar_key128 s) | let aes128_keyhash_init = | false | null | false | as_normal_t #(s: Ghost.erased (Seq.seq nat32) -> lowstar_key128_t s)
(fun (s: Ghost.erased (Seq.seq nat32)) -> lowstar_key128 s) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Vale.Stdcalls.X64.AesHash.as_normal_t",
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.Stdcalls.X64.AesHash.lowstar_key128_t",
"Vale.Stdcalls.X64.AesHash.lowstar_key128"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key256_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key256_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key256_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key256_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key256_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key256_pre s) (key256_post s)) (key256_lemma' s)
noextract
let code_key256 = GF.va_code_Keyhash_init IA.win AES_256
[@__reduce__] noextract
let lowstar_key256_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key256
dom
[]
_
_
(W.mk_prediction code_key256 dom [] ((key256_lemma s) code_key256 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key256 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key256_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key256
dom
(W.mk_prediction code_key256 dom [] ((key256_lemma s) code_key256 IA.win))
[@ (CCConv "stdcall") ] | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val aes128_keyhash_init : Vale.Interop.Base.normal (s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.Stdcalls.X64.AesHash.lowstar_key128_t s) | [] | Vale.Stdcalls.X64.AesHash.aes128_keyhash_init | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Vale.Interop.Base.normal (s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.Stdcalls.X64.AesHash.lowstar_key128_t s) | {
"end_col": 132,
"end_line": 202,
"start_col": 4,
"start_line": 202
} |
|
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let aes256_keyhash_init //: normal ((s:Ghost.erased (Seq.seq nat32)) -> lowstar_key256_t s)
= as_normal_t #((s:Ghost.erased (Seq.seq nat32)) -> lowstar_key256_t s) (fun (s:Ghost.erased (Seq.seq nat32)) -> lowstar_key256 s) | let aes256_keyhash_init = | false | null | false | as_normal_t #(s: Ghost.erased (Seq.seq nat32) -> lowstar_key256_t s)
(fun (s: Ghost.erased (Seq.seq nat32)) -> lowstar_key256 s) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Vale.Stdcalls.X64.AesHash.as_normal_t",
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.Stdcalls.X64.AesHash.lowstar_key256_t",
"Vale.Stdcalls.X64.AesHash.lowstar_key256"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key256_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key256_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key256_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key256_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key256_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key256_pre s) (key256_post s)) (key256_lemma' s)
noextract
let code_key256 = GF.va_code_Keyhash_init IA.win AES_256
[@__reduce__] noextract
let lowstar_key256_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key256
dom
[]
_
_
(W.mk_prediction code_key256 dom [] ((key256_lemma s) code_key256 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key256 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key256_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key256
dom
(W.mk_prediction code_key256 dom [] ((key256_lemma s) code_key256 IA.win))
[@ (CCConv "stdcall") ]
let aes128_keyhash_init //: normal ((s:Ghost.erased (Seq.seq nat32)) -> lowstar_key128_t s)
= as_normal_t #((s:Ghost.erased (Seq.seq nat32)) -> lowstar_key128_t s) (fun (s:Ghost.erased (Seq.seq nat32)) -> lowstar_key128 s)
[@ (CCConv "stdcall") ] | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val aes256_keyhash_init : Vale.Interop.Base.normal (s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.Stdcalls.X64.AesHash.lowstar_key256_t s) | [] | Vale.Stdcalls.X64.AesHash.aes256_keyhash_init | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Vale.Interop.Base.normal (s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.Stdcalls.X64.AesHash.lowstar_key256_t s) | {
"end_col": 132,
"end_line": 206,
"start_col": 4,
"start_line": 206
} |
|
Prims.Tot | val as_t (#a: Type) (x: normal a) : a | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let as_t (#a:Type) (x:normal a) : a = x | val as_t (#a: Type) (x: normal a) : a
let as_t (#a: Type) (x: normal a) : a = | false | null | false | x | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Vale.Interop.Base.normal"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *) | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val as_t (#a: Type) (x: normal a) : a | [] | Vale.Stdcalls.X64.AesHash.as_t | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | x: Vale.Interop.Base.normal a -> a | {
"end_col": 39,
"end_line": 31,
"start_col": 38,
"start_line": 31
} |
Prims.Tot | val as_normal_t (#a: Type) (x: a) : normal a | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let as_normal_t (#a:Type) (x:a) : normal a = x | val as_normal_t (#a: Type) (x: a) : normal a
let as_normal_t (#a: Type) (x: a) : normal a = | false | null | false | x | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Vale.Interop.Base.normal"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val as_normal_t (#a: Type) (x: a) : normal a | [] | Vale.Stdcalls.X64.AesHash.as_normal_t | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | x: a -> Vale.Interop.Base.normal a | {
"end_col": 46,
"end_line": 33,
"start_col": 45,
"start_line": 33
} |
Prims.Tot | val dom:IX64.arity_ok_stdcall td | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y | val dom:IX64.arity_ok_stdcall td
let dom:IX64.arity_ok_stdcall td = | false | null | false | let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"Prims.unit",
"FStar.Pervasives.assert_norm",
"Prims.b2t",
"Prims.op_Equality",
"Prims.int",
"FStar.List.Tot.Base.length",
"Vale.Interop.Base.td",
"Prims.list",
"Prims.Cons",
"Vale.Stdcalls.X64.AesHash.t128_no_mod",
"Vale.Stdcalls.X64.AesHash.t128_mod",
"Prims.Nil"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret}) | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val dom:IX64.arity_ok_stdcall td | [] | Vale.Stdcalls.X64.AesHash.dom | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | Vale.Interop.X64.arity_ok_stdcall Vale.Interop.Base.td | {
"end_col": 3,
"end_line": 46,
"start_col": 35,
"start_line": 43
} |
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let lowstar_key256_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key256
dom
[]
_
_
(W.mk_prediction code_key256 dom [] ((key256_lemma s) code_key256 IA.win)) | let lowstar_key256_t (s: Ghost.erased (Seq.seq nat32)) = | false | null | false | assert_norm (List.length dom + List.length ([] <: list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall code_key256
dom
[]
_
_
(W.mk_prediction code_key256 dom [] ((key256_lemma s) code_key256 IA.win)) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.Interop.X64.as_lowstar_sig_t_weak_stdcall",
"Vale.Stdcalls.X64.AesHash.code_key256",
"Vale.Stdcalls.X64.AesHash.dom",
"Prims.Nil",
"Vale.Interop.Base.arg",
"Vale.AsLowStar.Wrapper.pre_rel_generic",
"Vale.Interop.X64.max_stdcall",
"Vale.Interop.X64.arg_reg_stdcall",
"Vale.Stdcalls.X64.AesHash.key256_pre",
"Vale.AsLowStar.Wrapper.post_rel_generic",
"Vale.Stdcalls.X64.AesHash.key256_post",
"Vale.AsLowStar.Wrapper.mk_prediction",
"Vale.Interop.X64.regs_modified_stdcall",
"Vale.Interop.X64.xmms_modified_stdcall",
"Vale.Stdcalls.X64.AesHash.key256_lemma",
"Vale.Interop.Assumptions.win",
"Prims.unit",
"FStar.Pervasives.assert_norm",
"Prims.b2t",
"Prims.op_LessThanOrEqual",
"Prims.op_Addition",
"FStar.List.Tot.Base.length",
"Vale.Interop.Base.td",
"Prims.list"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key256_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key256_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key256_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key256_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key256_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key256_pre s) (key256_post s)) (key256_lemma' s)
noextract
let code_key256 = GF.va_code_Keyhash_init IA.win AES_256
[@__reduce__] noextract | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val lowstar_key256_t : s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32) -> Type0 | [] | Vale.Stdcalls.X64.AesHash.lowstar_key256_t | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32) -> Type0 | {
"end_col": 78,
"end_line": 188,
"start_col": 2,
"start_line": 181
} |
|
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win)) | let lowstar_key128_t (s: Ghost.erased (Seq.seq nat32)) = | false | null | false | assert_norm (List.length dom + List.length ([] <: list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win)) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.Interop.X64.as_lowstar_sig_t_weak_stdcall",
"Vale.Stdcalls.X64.AesHash.code_key128",
"Vale.Stdcalls.X64.AesHash.dom",
"Prims.Nil",
"Vale.Interop.Base.arg",
"Vale.AsLowStar.Wrapper.pre_rel_generic",
"Vale.Interop.X64.max_stdcall",
"Vale.Interop.X64.arg_reg_stdcall",
"Vale.Stdcalls.X64.AesHash.key128_pre",
"Vale.AsLowStar.Wrapper.post_rel_generic",
"Vale.Stdcalls.X64.AesHash.key128_post",
"Vale.AsLowStar.Wrapper.mk_prediction",
"Vale.Interop.X64.regs_modified_stdcall",
"Vale.Interop.X64.xmms_modified_stdcall",
"Vale.Stdcalls.X64.AesHash.key128_lemma",
"Vale.Interop.Assumptions.win",
"Prims.unit",
"FStar.Pervasives.assert_norm",
"Prims.b2t",
"Prims.op_LessThanOrEqual",
"Prims.op_Addition",
"FStar.List.Tot.Base.length",
"Vale.Interop.Base.td",
"Prims.list"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract | false | true | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val lowstar_key128_t : s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32) -> Type0 | [] | Vale.Stdcalls.X64.AesHash.lowstar_key128_t | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32) -> Type0 | {
"end_col": 78,
"end_line": 112,
"start_col": 2,
"start_line": 105
} |
|
Prims.Tot | val lowstar_key128 (s: Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win)) | val lowstar_key128 (s: Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s
let lowstar_key128 (s: Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s = | false | null | false | assert_norm (List.length dom + List.length ([] <: list arg) <= 4);
IX64.wrap_weak_stdcall code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win)) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.Interop.X64.wrap_weak_stdcall",
"Vale.Stdcalls.X64.AesHash.code_key128",
"Vale.Stdcalls.X64.AesHash.dom",
"Vale.AsLowStar.Wrapper.pre_rel_generic",
"Vale.Interop.X64.max_stdcall",
"Vale.Interop.X64.arg_reg_stdcall",
"Prims.Nil",
"Vale.Interop.Base.arg",
"Vale.Stdcalls.X64.AesHash.key128_pre",
"Vale.AsLowStar.Wrapper.post_rel_generic",
"Vale.Stdcalls.X64.AesHash.key128_post",
"Vale.AsLowStar.Wrapper.mk_prediction",
"Vale.Interop.X64.regs_modified_stdcall",
"Vale.Interop.X64.xmms_modified_stdcall",
"Vale.Stdcalls.X64.AesHash.key128_lemma",
"Vale.Interop.Assumptions.win",
"Prims.unit",
"FStar.Pervasives.assert_norm",
"Prims.b2t",
"Prims.op_LessThanOrEqual",
"Prims.op_Addition",
"FStar.List.Tot.Base.length",
"Vale.Interop.Base.td",
"Prims.list",
"Vale.Stdcalls.X64.AesHash.lowstar_key128_t"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val lowstar_key128 (s: Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s | [] | Vale.Stdcalls.X64.AesHash.lowstar_key128 | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.Stdcalls.X64.AesHash.lowstar_key128_t s | {
"end_col": 78,
"end_line": 121,
"start_col": 2,
"start_line": 117
} |
Prims.Tot | val lowstar_key256 (s: Ghost.erased (Seq.seq nat32)) : lowstar_key256_t s | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let lowstar_key256 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key256_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key256
dom
(W.mk_prediction code_key256 dom [] ((key256_lemma s) code_key256 IA.win)) | val lowstar_key256 (s: Ghost.erased (Seq.seq nat32)) : lowstar_key256_t s
let lowstar_key256 (s: Ghost.erased (Seq.seq nat32)) : lowstar_key256_t s = | false | null | false | assert_norm (List.length dom + List.length ([] <: list arg) <= 4);
IX64.wrap_weak_stdcall code_key256
dom
(W.mk_prediction code_key256 dom [] ((key256_lemma s) code_key256 IA.win)) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.Interop.X64.wrap_weak_stdcall",
"Vale.Stdcalls.X64.AesHash.code_key256",
"Vale.Stdcalls.X64.AesHash.dom",
"Vale.AsLowStar.Wrapper.pre_rel_generic",
"Vale.Interop.X64.max_stdcall",
"Vale.Interop.X64.arg_reg_stdcall",
"Prims.Nil",
"Vale.Interop.Base.arg",
"Vale.Stdcalls.X64.AesHash.key256_pre",
"Vale.AsLowStar.Wrapper.post_rel_generic",
"Vale.Stdcalls.X64.AesHash.key256_post",
"Vale.AsLowStar.Wrapper.mk_prediction",
"Vale.Interop.X64.regs_modified_stdcall",
"Vale.Interop.X64.xmms_modified_stdcall",
"Vale.Stdcalls.X64.AesHash.key256_lemma",
"Vale.Interop.Assumptions.win",
"Prims.unit",
"FStar.Pervasives.assert_norm",
"Prims.b2t",
"Prims.op_LessThanOrEqual",
"Prims.op_Addition",
"FStar.List.Tot.Base.length",
"Vale.Interop.Base.td",
"Prims.list",
"Vale.Stdcalls.X64.AesHash.lowstar_key256_t"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key256_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key256_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key256_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key256_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key256_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key256_pre s) (key256_post s)) (key256_lemma' s)
noextract
let code_key256 = GF.va_code_Keyhash_init IA.win AES_256
[@__reduce__] noextract
let lowstar_key256_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key256
dom
[]
_
_
(W.mk_prediction code_key256 dom [] ((key256_lemma s) code_key256 IA.win))
(* And here's the gcm wrapper itself *)
noextract | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val lowstar_key256 (s: Ghost.erased (Seq.seq nat32)) : lowstar_key256_t s | [] | Vale.Stdcalls.X64.AesHash.lowstar_key256 | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.Stdcalls.X64.AesHash.lowstar_key256_t s | {
"end_col": 78,
"end_line": 197,
"start_col": 2,
"start_line": 193
} |
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s) | let key128_lemma (s: Ghost.erased (Seq.seq nat32)) = | false | null | false | as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.Stdcalls.X64.AesHash.as_t",
"Vale.AsLowStar.ValeSig.vale_sig_stdcall",
"Vale.Stdcalls.X64.AesHash.dom",
"Vale.Stdcalls.X64.AesHash.key128_pre",
"Vale.Stdcalls.X64.AesHash.key128_post",
"Vale.Stdcalls.X64.AesHash.key128_lemma'"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f) | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key128_lemma : s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.AsLowStar.ValeSig.vale_sig_stdcall (Vale.Stdcalls.X64.AesHash.key128_pre s)
(Vale.Stdcalls.X64.AesHash.key128_post s) | [] | Vale.Stdcalls.X64.AesHash.key128_lemma | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.AsLowStar.ValeSig.vale_sig_stdcall (Vale.Stdcalls.X64.AesHash.key128_pre s)
(Vale.Stdcalls.X64.AesHash.key128_post s) | {
"end_col": 131,
"end_line": 98,
"start_col": 52,
"start_line": 98
} |
|
Prims.Tot | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key256_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key256_pre s) (key256_post s)) (key256_lemma' s) | let key256_lemma (s: Ghost.erased (Seq.seq nat32)) = | false | null | false | as_t #(VSig.vale_sig_stdcall (key256_pre s) (key256_post s)) (key256_lemma' s) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [
"total"
] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.Stdcalls.X64.AesHash.as_t",
"Vale.AsLowStar.ValeSig.vale_sig_stdcall",
"Vale.Stdcalls.X64.AesHash.dom",
"Vale.Stdcalls.X64.AesHash.key256_pre",
"Vale.Stdcalls.X64.AesHash.key256_post",
"Vale.Stdcalls.X64.AesHash.key256_lemma'"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key256_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key256_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key256_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key256_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f) | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key256_lemma : s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.AsLowStar.ValeSig.vale_sig_stdcall (Vale.Stdcalls.X64.AesHash.key256_pre s)
(Vale.Stdcalls.X64.AesHash.key256_post s) | [] | Vale.Stdcalls.X64.AesHash.key256_lemma | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} | s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32)
-> Vale.AsLowStar.ValeSig.vale_sig_stdcall (Vale.Stdcalls.X64.AesHash.key256_pre s)
(Vale.Stdcalls.X64.AesHash.key256_post s) | {
"end_col": 131,
"end_line": 174,
"start_col": 52,
"start_line": 174
} |
|
Prims.Ghost | val key128_lemma'
(s: Ghost.erased (Seq.seq nat32))
(code: V.va_code)
(_win: bool)
(input_b output_b: b128)
(va_s0: V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires key128_pre s code input_b output_b va_s0)
(ensures
(fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\ VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b))) | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f) | val key128_lemma'
(s: Ghost.erased (Seq.seq nat32))
(code: V.va_code)
(_win: bool)
(input_b output_b: b128)
(va_s0: V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires key128_pre s code input_b output_b va_s0)
(ensures
(fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\ VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)))
let key128_lemma'
(s: Ghost.erased (Seq.seq nat32))
(code: V.va_code)
(_win: bool)
(input_b output_b: b128)
(va_s0: V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires key128_pre s code input_b output_b va_s0)
(ensures
(fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\ VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b))) = | false | null | false | let va_s1, f =
GF.va_lemma_Keyhash_init code
va_s0
IA.win
AES_128
(Ghost.reveal s)
(as_vale_buffer input_b)
(as_vale_buffer output_b)
in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.X64.Decls.va_code",
"Prims.bool",
"Vale.Stdcalls.X64.AesHash.b128",
"Vale.X64.Decls.va_state",
"Vale.X64.Decls.va_fuel",
"FStar.Pervasives.Native.Mktuple2",
"Prims.unit",
"Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal",
"Vale.Arch.HeapTypes_s.TUInt8",
"Vale.Arch.HeapTypes_s.TUInt128",
"FStar.Pervasives.Native.tuple2",
"Vale.X64.State.vale_state",
"Vale.AES.X64.GF128_Init.va_lemma_Keyhash_init",
"Vale.Interop.Assumptions.win",
"Vale.AES.AES_common_s.AES_128",
"FStar.Ghost.reveal",
"Vale.X64.MemoryAdapters.as_vale_buffer",
"Vale.Stdcalls.X64.AesHash.key128_pre",
"Prims.l_and",
"Vale.X64.Decls.eval_code",
"Vale.AsLowStar.ValeSig.vale_calling_conventions_stdcall",
"Vale.Stdcalls.X64.AesHash.key128_post",
"Vale.X64.Memory.buffer_writeable"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\ | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key128_lemma'
(s: Ghost.erased (Seq.seq nat32))
(code: V.va_code)
(_win: bool)
(input_b output_b: b128)
(va_s0: V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires key128_pre s code input_b output_b va_s0)
(ensures
(fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\ VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b))) | [] | Vale.Stdcalls.X64.AesHash.key128_lemma' | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} |
s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32) ->
code: Vale.X64.Decls.va_code ->
_win: Prims.bool ->
input_b: Vale.Stdcalls.X64.AesHash.b128 ->
output_b: Vale.Stdcalls.X64.AesHash.b128 ->
va_s0: Vale.X64.Decls.va_state
-> Prims.Ghost (Vale.X64.Decls.va_state * Vale.X64.Decls.va_fuel) | {
"end_col": 13,
"end_line": 95,
"start_col": 5,
"start_line": 90
} |
Prims.Ghost | val key256_lemma'
(s: Ghost.erased (Seq.seq nat32))
(code: V.va_code)
(_win: bool)
(input_b output_b: b128)
(va_s0: V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires key256_pre s code input_b output_b va_s0)
(ensures
(fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\ VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b))) | [
{
"abbrev": true,
"full_module": "Vale.AES.X64.GF128_Init",
"short_module": "GF"
},
{
"abbrev": false,
"full_module": "Vale.AES.AES_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.X64.Machine_s",
"short_module": "MS"
},
{
"abbrev": true,
"full_module": "Vale.X64.State",
"short_module": "VS"
},
{
"abbrev": false,
"full_module": "Vale.X64.MemoryAdapters",
"short_module": null
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.Wrapper",
"short_module": "W"
},
{
"abbrev": true,
"full_module": "Vale.Interop.Assumptions",
"short_module": "IA"
},
{
"abbrev": true,
"full_module": "Vale.X64.Decls",
"short_module": "V"
},
{
"abbrev": true,
"full_module": "Vale.X64.Memory",
"short_module": "ME"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.LowStarSig",
"short_module": "LSig"
},
{
"abbrev": true,
"full_module": "Vale.AsLowStar.ValeSig",
"short_module": "VSig"
},
{
"abbrev": true,
"full_module": "Vale.Interop.X64",
"short_module": "IX64"
},
{
"abbrev": false,
"full_module": "Vale.Interop.Base",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Def.Types_s",
"short_module": null
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Up",
"short_module": "UV"
},
{
"abbrev": true,
"full_module": "LowStar.BufferView.Down",
"short_module": "DV"
},
{
"abbrev": false,
"full_module": "FStar.Mul",
"short_module": null
},
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": false,
"full_module": "FStar.HyperStack.ST",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "Vale.Stdcalls.X64",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let key256_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key256_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f) | val key256_lemma'
(s: Ghost.erased (Seq.seq nat32))
(code: V.va_code)
(_win: bool)
(input_b output_b: b128)
(va_s0: V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires key256_pre s code input_b output_b va_s0)
(ensures
(fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\ VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)))
let key256_lemma'
(s: Ghost.erased (Seq.seq nat32))
(code: V.va_code)
(_win: bool)
(input_b output_b: b128)
(va_s0: V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires key256_pre s code input_b output_b va_s0)
(ensures
(fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\ VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b))) = | false | null | false | let va_s1, f =
GF.va_lemma_Keyhash_init code
va_s0
IA.win
AES_256
(Ghost.reveal s)
(as_vale_buffer input_b)
(as_vale_buffer output_b)
in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f) | {
"checked_file": "Vale.Stdcalls.X64.AesHash.fst.checked",
"dependencies": [
"Vale.X64.State.fsti.checked",
"Vale.X64.MemoryAdapters.fsti.checked",
"Vale.X64.Memory.fsti.checked",
"Vale.X64.Machine_s.fst.checked",
"Vale.X64.Decls.fsti.checked",
"Vale.Interop.X64.fsti.checked",
"Vale.Interop.Base.fst.checked",
"Vale.Interop.Assumptions.fst.checked",
"Vale.Def.Types_s.fst.checked",
"Vale.AsLowStar.Wrapper.fsti.checked",
"Vale.AsLowStar.ValeSig.fst.checked",
"Vale.AsLowStar.MemoryHelpers.fsti.checked",
"Vale.AsLowStar.LowStarSig.fst.checked",
"Vale.AES.X64.GF128_Init.fsti.checked",
"Vale.AES.AES_s.fst.checked",
"prims.fst.checked",
"LowStar.BufferView.Up.fsti.checked",
"LowStar.BufferView.Down.fsti.checked",
"LowStar.Buffer.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Mul.fst.checked",
"FStar.List.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Ghost.fsti.checked"
],
"interface_file": false,
"source_file": "Vale.Stdcalls.X64.AesHash.fst"
} | [] | [
"FStar.Ghost.erased",
"FStar.Seq.Base.seq",
"Vale.Def.Types_s.nat32",
"Vale.X64.Decls.va_code",
"Prims.bool",
"Vale.Stdcalls.X64.AesHash.b128",
"Vale.X64.Decls.va_state",
"Vale.X64.Decls.va_fuel",
"FStar.Pervasives.Native.Mktuple2",
"Prims.unit",
"Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal",
"Vale.Arch.HeapTypes_s.TUInt8",
"Vale.Arch.HeapTypes_s.TUInt128",
"FStar.Pervasives.Native.tuple2",
"Vale.X64.State.vale_state",
"Vale.AES.X64.GF128_Init.va_lemma_Keyhash_init",
"Vale.Interop.Assumptions.win",
"Vale.AES.AES_common_s.AES_256",
"FStar.Ghost.reveal",
"Vale.X64.MemoryAdapters.as_vale_buffer",
"Vale.Stdcalls.X64.AesHash.key256_pre",
"Prims.l_and",
"Vale.X64.Decls.eval_code",
"Vale.AsLowStar.ValeSig.vale_calling_conventions_stdcall",
"Vale.Stdcalls.X64.AesHash.key256_post",
"Vale.X64.Memory.buffer_writeable"
] | [] | module Vale.Stdcalls.X64.AesHash
open FStar.HyperStack.ST
module B = LowStar.Buffer
module HS = FStar.HyperStack
open FStar.Mul
module DV = LowStar.BufferView.Down
module UV = LowStar.BufferView.Up
open Vale.Def.Types_s
open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AES.AES_s
module GF = Vale.AES.X64.GF128_Init
let uint64 = UInt64.t
(* A little utility to trigger normalization in types *)
noextract
let as_t (#a:Type) (x:normal a) : a = x
noextract
let as_normal_t (#a:Type) (x:a) : normal a = x
[@__reduce__] noextract
let b128 = buf_t TUInt8 TUInt128
[@__reduce__] noextract
let t128_mod = TD_Buffer TUInt8 TUInt128 default_bq
[@__reduce__] noextract
let t128_no_mod = TD_Buffer TUInt8 TUInt128 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__] noextract
let dom: IX64.arity_ok_stdcall td =
let y = [t128_no_mod; t128_mod] in
assert_norm (List.length y = 2);
y
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key128_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key128_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key128_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key128_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key128_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b)
)) =
let va_s1, f = GF.va_lemma_Keyhash_init code va_s0 IA.win AES_128 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) in
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 input_b;
Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt8 ME.TUInt128 output_b;
(va_s1, f)
noextract
let key128_lemma (s:Ghost.erased (Seq.seq nat32)) = as_t #(VSig.vale_sig_stdcall (key128_pre s) (key128_post s)) (key128_lemma' s)
noextract
let code_key128 = GF.va_code_Keyhash_init IA.win AES_128
[@__reduce__] noextract
let lowstar_key128_t (s:Ghost.erased (Seq.seq nat32)) =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.as_lowstar_sig_t_weak_stdcall
code_key128
dom
[]
_
_
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* And here's the gcm wrapper itself *)
noextract
let lowstar_key128 (s:Ghost.erased (Seq.seq nat32)) : lowstar_key128_t s =
assert_norm (List.length dom + List.length ([]<:list arg) <= 4);
IX64.wrap_weak_stdcall
code_key128
dom
(W.mk_prediction code_key128 dom [] ((key128_lemma s) code_key128 IA.win))
(* Need to rearrange the order of arguments *)
[@__reduce__] noextract
let key256_pre : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_pre dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state) ->
GF.va_req_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b)
[@__reduce__] noextract
let key256_post : (Ghost.erased (Seq.seq nat32)) -> VSig.vale_post dom =
fun (s:Ghost.erased (Seq.seq nat32))
(c:V.va_code)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
(va_s1:V.va_state)
(f:V.va_fuel) ->
GF.va_ens_Keyhash_init c va_s0 IA.win AES_256 (Ghost.reveal s)
(as_vale_buffer input_b) (as_vale_buffer output_b) va_s1 f
#set-options "--z3rlimit 20"
[@__reduce__] noextract
let key256_lemma'
(s:Ghost.erased (Seq.seq nat32))
(code:V.va_code)
(_win:bool)
(input_b:b128)
(output_b:b128)
(va_s0:V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires
key256_pre s code input_b output_b va_s0)
(ensures (fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\
VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\ | false | false | Vale.Stdcalls.X64.AesHash.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 0,
"max_fuel": 1,
"max_ifuel": 1,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": true,
"smtencoding_l_arith_repr": "native",
"smtencoding_nl_arith_repr": "wrapped",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": false,
"z3cliopt": [
"smt.arith.nl=false",
"smt.QI.EAGER_THRESHOLD=100",
"smt.CASE_SPLIT=3"
],
"z3refresh": false,
"z3rlimit": 20,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val key256_lemma'
(s: Ghost.erased (Seq.seq nat32))
(code: V.va_code)
(_win: bool)
(input_b output_b: b128)
(va_s0: V.va_state)
: Ghost (V.va_state & V.va_fuel)
(requires key256_pre s code input_b output_b va_s0)
(ensures
(fun (va_s1, f) ->
V.eval_code code va_s0 f va_s1 /\ VSig.vale_calling_conventions_stdcall va_s0 va_s1 /\
key256_post s code input_b output_b va_s0 va_s1 f /\
ME.buffer_writeable (as_vale_buffer input_b) /\
ME.buffer_writeable (as_vale_buffer output_b))) | [] | Vale.Stdcalls.X64.AesHash.key256_lemma' | {
"file_name": "vale/code/arch/x64/interop/Vale.Stdcalls.X64.AesHash.fst",
"git_rev": "12c5e9539c7e3c366c26409d3b86493548c4483e",
"git_url": "https://github.com/hacl-star/hacl-star.git",
"project_name": "hacl-star"
} |
s: FStar.Ghost.erased (FStar.Seq.Base.seq Vale.Def.Types_s.nat32) ->
code: Vale.X64.Decls.va_code ->
_win: Prims.bool ->
input_b: Vale.Stdcalls.X64.AesHash.b128 ->
output_b: Vale.Stdcalls.X64.AesHash.b128 ->
va_s0: Vale.X64.Decls.va_state
-> Prims.Ghost (Vale.X64.Decls.va_state * Vale.X64.Decls.va_fuel) | {
"end_col": 13,
"end_line": 171,
"start_col": 5,
"start_line": 166
} |
Prims.GTot | val validate_sum_aux_payload_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0) | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True | val validate_sum_aux_payload_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
let validate_sum_aux_payload_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0) = | false | null | false | fun _ _ -> True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.validate_sum_aux_payload_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum_aux_payload_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0) | [] | LowParse.Low.Sum.validate_sum_aux_payload_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Enum.maybe_enum_key (LowParse.Spec.Sum.sum_enum t) ->
_: LowParse.Low.Sum.validate_sum_aux_payload_t t pc k ->
_: LowParse.Low.Sum.validate_sum_aux_payload_t t pc k
-> Prims.GTot Type0 | {
"end_col": 17,
"end_line": 100,
"start_col": 2,
"start_line": 100
} |
Prims.GTot | val validate_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: validate_sum_cases_t t pc k)
: GTot Type0 | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True | val validate_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: validate_sum_cases_t t pc k)
: GTot Type0
let validate_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: validate_sum_cases_t t pc k)
: GTot Type0 = | false | null | false | True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Sum.validate_sum_cases_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: validate_sum_cases_t t pc k)
: GTot Type0 | [] | LowParse.Low.Sum.validate_sum_cases_t_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t ->
x: LowParse.Low.Sum.validate_sum_cases_t t pc k ->
y: LowParse.Low.Sum.validate_sum_cases_t t pc k
-> Prims.GTot Type0 | {
"end_col": 6,
"end_line": 43,
"start_col": 2,
"start_line": 43
} |
Prims.Tot | val validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc)) | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr) | val validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc)) = | false | null | false | validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Low.Base.validator",
"LowParse.Low.Base.leaf_reader",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.dep_maybe_enum_destr_t",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.validate_sum_aux_payload_t",
"LowParse.Low.Sum.validate_sum_aux",
"LowParse.Low.Sum.validate_sum_aux_payload",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.parse_sum"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc)) | [] | LowParse.Low.Sum.validate_sum | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
v: LowParse.Low.Base.validator p ->
p32: LowParse.Low.Base.leaf_reader p ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
pc32:
(x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.validator (FStar.Pervasives.dsnd (pc x))) ->
destr:
LowParse.Spec.Enum.dep_maybe_enum_destr_t (LowParse.Spec.Sum.sum_enum t)
(LowParse.Low.Sum.validate_sum_aux_payload_t t pc)
-> LowParse.Low.Base.validator (LowParse.Spec.Sum.parse_sum t p pc) | {
"end_col": 72,
"end_line": 202,
"start_col": 2,
"start_line": 202
} |
Prims.GTot | val serialize32_sum_cases_t_eq
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0 | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True | val serialize32_sum_cases_t_eq
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0 = | false | null | false | True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Base.serializer",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Sum.serialize32_sum_cases_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val serialize32_sum_cases_t_eq
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0 | [] | LowParse.Low.Sum.serialize32_sum_cases_t_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
sc:
(x: LowParse.Spec.Sum.sum_key t
-> LowParse.Spec.Base.serializer (FStar.Pervasives.dsnd (pc x))) ->
k: LowParse.Spec.Sum.sum_key t ->
x: LowParse.Low.Sum.serialize32_sum_cases_t t sc k ->
y: LowParse.Low.Sum.serialize32_sum_cases_t t sc k
-> Prims.GTot Type0 | {
"end_col": 6,
"end_line": 682,
"start_col": 2,
"start_line": 682
} |
Prims.Tot | val accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc) | val accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc)) = | false | null | false | accessor_tagged_union_tag (parse_enum_key p (sum_enum t)) (sum_tag_of_data t) (parse_sum_cases t pc) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Combinators.accessor_tagged_union_tag",
"LowParse.Spec.Combinators.parse_filter_kind",
"LowParse.Spec.Enum.enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Spec.Enum.parse_enum_key",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.sum_tag_of_data",
"LowParse.Spec.Sum.weaken_parse_cases_kind",
"LowParse.Spec.Sum.parse_sum_cases",
"LowParse.Low.Base.accessor",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.parse_sum",
"LowParse.Low.Sum.clens_sum_tag",
"LowParse.Low.Sum.gaccessor_sum_tag"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x)))) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc)) | [] | LowParse.Low.Sum.accessor_sum_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.sum_repr_type t) ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x)))
-> LowParse.Low.Base.accessor (LowParse.Low.Sum.gaccessor_sum_tag t p pc) | {
"end_col": 26,
"end_line": 783,
"start_col": 2,
"start_line": 780
} |
Prims.Tot | val jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr) | val jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc)) = | false | null | false | jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Low.Base.jumper",
"LowParse.Low.Base.leaf_reader",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.dep_maybe_enum_destr_t",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.jump_sum_aux_payload_t",
"LowParse.Low.Sum.jump_sum_aux",
"LowParse.Low.Sum.jump_sum_aux_payload",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.parse_sum"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc)) | [] | LowParse.Low.Sum.jump_sum | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
v: LowParse.Low.Base.jumper p ->
p32: LowParse.Low.Base.leaf_reader p ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
pc32:
(x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.jumper (FStar.Pervasives.dsnd (pc x))) ->
destr:
LowParse.Spec.Enum.dep_maybe_enum_destr_t (LowParse.Spec.Sum.sum_enum t)
(LowParse.Low.Sum.jump_sum_aux_payload_t t pc)
-> LowParse.Low.Base.jumper (LowParse.Spec.Sum.parse_sum t p pc) | {
"end_col": 64,
"end_line": 580,
"start_col": 2,
"start_line": 580
} |
Prims.Tot | val clens_sum_tag (s: sum) : Tot (clens (sum_type s) (sum_key s)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
} | val clens_sum_tag (s: sum) : Tot (clens (sum_type s) (sum_key s))
let clens_sum_tag (s: sum) : Tot (clens (sum_type s) (sum_key s)) = | false | null | false | { clens_cond = (fun _ -> True); clens_get = sum_tag_of_data s } | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Low.Base.Spec.Mkclens",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.sum_key",
"Prims.l_True",
"LowParse.Spec.Sum.sum_tag_of_data",
"LowParse.Low.Base.Spec.clens"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val clens_sum_tag (s: sum) : Tot (clens (sum_type s) (sum_key s)) | [] | LowParse.Low.Sum.clens_sum_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} | s: LowParse.Spec.Sum.sum
-> LowParse.Low.Base.Spec.clens (LowParse.Spec.Sum.sum_type s) (LowParse.Spec.Sum.sum_key s) | {
"end_col": 34,
"end_line": 759,
"start_col": 4,
"start_line": 758
} |
Prims.Tot | val clens_sum_cases_payload (s: sum) (k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
} | val clens_sum_cases_payload (s: sum) (k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
let clens_sum_cases_payload (s: sum) (k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k)) = | false | null | false | {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get
=
(fun (x: sum_cases s k) ->
synth_sum_case_recip s k x
<:
Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)))
} | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"LowParse.Low.Base.Spec.Mkclens",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Sum.sum_type_of_tag",
"Prims.l_True",
"LowParse.Spec.Sum.synth_sum_case_recip",
"LowParse.Low.Base.Spec.clens"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val clens_sum_cases_payload (s: sum) (k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k)) | [] | LowParse.Low.Sum.clens_sum_cases_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} | s: LowParse.Spec.Sum.sum -> k: LowParse.Spec.Sum.sum_key s
-> LowParse.Low.Base.Spec.clens (LowParse.Spec.Sum.sum_cases s k)
(LowParse.Spec.Sum.sum_type_of_tag s k) | {
"end_col": 146,
"end_line": 923,
"start_col": 4,
"start_line": 922
} |
Prims.GTot | val serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0 | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True | val serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0 = | false | null | false | True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Base.serializer",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Low.Sum.serialize32_dsum_cases_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0 | [] | LowParse.Low.Sum.serialize32_dsum_cases_t_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
sf:
(x: LowParse.Spec.Sum.dsum_known_key t
-> LowParse.Spec.Base.serializer (FStar.Pervasives.dsnd (f x))) ->
g: LowParse.Spec.Base.parser k' (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
sg: LowParse.Spec.Base.serializer g ->
k: LowParse.Spec.Sum.dsum_known_key t ->
x: LowParse.Low.Sum.serialize32_dsum_cases_t t f sf g sg k ->
y: LowParse.Low.Sum.serialize32_dsum_cases_t t f sf g sg k
-> Prims.GTot Type0 | {
"end_col": 6,
"end_line": 1691,
"start_col": 2,
"start_line": 1691
} |
Prims.Tot | val accessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p {kt.parser_kind_subkind == Some ParserStrong})
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_clens_dsum_unknown_payload t p f g)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let accessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p { kt.parser_kind_subkind == Some ParserStrong })
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_clens_dsum_unknown_payload t p f g))
= fun #rrel #rel -> accessor_clens_dsum_unknown_payload' t j f g #rrel #rel | val accessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p {kt.parser_kind_subkind == Some ParserStrong})
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_clens_dsum_unknown_payload t p f g))
let accessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p {kt.parser_kind_subkind == Some ParserStrong})
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_clens_dsum_unknown_payload t p f g)) = | false | null | false | fun #rrel #rel -> accessor_clens_dsum_unknown_payload' t j f g #rrel #rel | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Low.Base.jumper",
"Prims.eq2",
"FStar.Pervasives.Native.option",
"LowParse.Spec.Base.parser_subkind",
"LowParse.Spec.Base.__proj__Mkparser_kind'__item__parser_kind_subkind",
"FStar.Pervasives.Native.Some",
"LowParse.Spec.Base.ParserStrong",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Low.Sum.accessor_clens_dsum_unknown_payload'",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"FStar.Monotonic.HyperStack.mem",
"Prims.l_and",
"LowParse.Low.Base.Spec.valid",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.parse_dsum",
"LowParse.Low.Base.Spec.__proj__Mkclens__item__clens_cond",
"LowParse.Low.Sum.clens_dsum_unknown_payload",
"LowParse.Low.Base.Spec.contents",
"LowStar.Monotonic.Buffer.modifies",
"LowStar.Monotonic.Buffer.loc_none",
"LowParse.Low.Base.Spec.slice_access",
"LowParse.Low.Sum.gaccessor_clens_dsum_unknown_payload",
"LowParse.Low.Base.accessor"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
}
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
= gaccessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
inline_for_extraction
let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g))
= accessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
let clens_dsum_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_type s) (dsum_type_of_tag s k))
= {
clens_cond = (fun (x: dsum_type s) -> dsum_tag_of_data s x == k);
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s k x <: Ghost (dsum_type_of_tag s k) (requires (dsum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
let clens_dsum_unknown_payload
(s: dsum)
: Tot (clens (dsum_type s) (dsum_type_of_unknown_tag s))
= {
clens_cond = (fun (x: dsum_type s) -> Unknown? (dsum_tag_of_data s x));
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s (dsum_tag_of_data s x) x <: Ghost (dsum_type_of_unknown_tag s) (requires (Unknown? (dsum_tag_of_data s x))) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) input res } ))
let gaccessor_clens_dsum_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_injective t p f g k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_no_lookahead t p f g k x));
gaccessor_prop_equiv (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) (gaccessor_clens_dsum_payload' t p f g k);
gaccessor_clens_dsum_payload' t p f g k
inline_for_extraction
let accessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_payload t k).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_payload t p f g k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_payload t p f g k) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k))
= fun #rrel #rel -> accessor_clens_dsum_payload' t j f g k #rrel #rel
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor' (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (tg, consumed) ->
let k = maybe_enum_key_of_repr (dsum_enum t) tg in
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) g (clens_dsum_unknown_payload t) input res } ))
let gaccessor_clens_dsum_unknown_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_injective t p f g x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_no_lookahead t p f g x));
gaccessor_prop_equiv (parse_dsum t p f g) g (clens_dsum_unknown_payload t) (gaccessor_clens_dsum_unknown_payload' t p f g);
gaccessor_clens_dsum_unknown_payload' t p f g
inline_for_extraction
let accessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_unknown_payload t).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_unknown_payload t p f g) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_unknown_payload t p f g) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p { kt.parser_kind_subkind == Some ParserStrong })
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val accessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p {kt.parser_kind_subkind == Some ParserStrong})
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_clens_dsum_unknown_payload t p f g)) | [] | LowParse.Low.Sum.accessor_clens_dsum_unknown_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
j:
LowParse.Low.Base.jumper p
{ Mkparser_kind'?.parser_kind_subkind kt ==
FStar.Pervasives.Native.Some LowParse.Spec.Base.ParserStrong } ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t)
-> LowParse.Low.Base.accessor (LowParse.Low.Sum.gaccessor_clens_dsum_unknown_payload t p f g) | {
"end_col": 75,
"end_line": 2078,
"start_col": 2,
"start_line": 2078
} |
Prims.GTot | val jump_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: jump_sum_cases_t t pc k)
: GTot Type0 | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True | val jump_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: jump_sum_cases_t t pc k)
: GTot Type0
let jump_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: jump_sum_cases_t t pc k)
: GTot Type0 = | false | null | false | True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Sum.jump_sum_cases_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: jump_sum_cases_t t pc k)
: GTot Type0 | [] | LowParse.Low.Sum.jump_sum_cases_t_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t ->
x: LowParse.Low.Sum.jump_sum_cases_t t pc k ->
y: LowParse.Low.Sum.jump_sum_cases_t t pc k
-> Prims.GTot Type0 | {
"end_col": 6,
"end_line": 306,
"start_col": 2,
"start_line": 306
} |
Prims.GTot | val jump_sum_aux_payload_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True | val jump_sum_aux_payload_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
let jump_sum_aux_payload_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0) = | false | null | false | fun _ _ -> True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.jump_sum_aux_payload_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_aux_payload_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0) | [] | LowParse.Low.Sum.jump_sum_aux_payload_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Enum.maybe_enum_key (LowParse.Spec.Sum.sum_enum t) ->
_: LowParse.Low.Sum.jump_sum_aux_payload_t t pc k ->
_: LowParse.Low.Sum.jump_sum_aux_payload_t t pc k
-> Prims.GTot Type0 | {
"end_col": 17,
"end_line": 363,
"start_col": 2,
"start_line": 363
} |
Prims.Tot | val validate_sum_aux_payload_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k | val validate_sum_aux_payload_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
let validate_sum_aux_payload_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k)) = | false | null | false | validate_sum_aux_payload_if' t pc k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.validate_sum_aux_payload_if'",
"LowParse.Spec.Enum.if_combinator",
"LowParse.Low.Sum.validate_sum_aux_payload_t",
"LowParse.Low.Sum.validate_sum_aux_payload_eq"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum_aux_payload_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k)) | [] | LowParse.Low.Sum.validate_sum_aux_payload_if | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Enum.maybe_enum_key (LowParse.Spec.Sum.sum_enum t)
-> LowParse.Spec.Enum.if_combinator (LowParse.Low.Sum.validate_sum_aux_payload_t t pc k)
(LowParse.Low.Sum.validate_sum_aux_payload_eq t pc k) | {
"end_col": 37,
"end_line": 124,
"start_col": 2,
"start_line": 124
} |
Prims.Tot | val validate_sum_cases_aux
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
() | val validate_sum_cases_aux
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
let validate_sum_cases_aux
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k)) = | false | null | false | [@@ inline_let ]let _ = synth_sum_case_injective t k in
validate_synth (validate_weaken (weaken_parse_cases_kind t pc) (vc k) ()) (synth_sum_case t k) () | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.validator",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Combinators.validate_synth",
"LowParse.Spec.Sum.weaken_parse_cases_kind",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Base.weaken",
"LowParse.Low.Combinators.validate_weaken",
"LowParse.Spec.Sum.synth_sum_case",
"Prims.unit",
"LowParse.Spec.Sum.synth_sum_case_injective",
"LowParse.Spec.Sum.parse_sum_cases"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum_cases_aux
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k)) | [] | LowParse.Low.Sum.validate_sum_cases_aux | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
vc:
(x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.validator (FStar.Pervasives.dsnd (pc x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.validator (LowParse.Spec.Sum.parse_sum_cases t pc k) | {
"end_col": 6,
"end_line": 27,
"start_col": 2,
"start_line": 18
} |
Prims.Tot | val validate_sum_aux_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)) | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k | val validate_sum_aux_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
let validate_sum_aux_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)) = | false | null | false | destr (validate_sum_aux_payload_eq t pc)
(validate_sum_aux_payload_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_aux_payload' t pc pc32)
k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.validator",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.dep_maybe_enum_destr_t",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.validate_sum_aux_payload_t",
"LowParse.Low.Sum.validate_sum_aux_payload_eq",
"LowParse.Low.Sum.validate_sum_aux_payload_if",
"LowParse.Spec.Enum.maybe_enum_key",
"Prims.unit",
"LowParse.Low.Sum.validate_sum_aux_payload'",
"LowParse.Spec.Enum.maybe_enum_key_of_repr"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum_aux_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)) | [] | LowParse.Low.Sum.validate_sum_aux_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
pc32:
(x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.validator (FStar.Pervasives.dsnd (pc x))) ->
destr:
LowParse.Spec.Enum.dep_maybe_enum_destr_t (LowParse.Spec.Sum.sum_enum t)
(LowParse.Low.Sum.validate_sum_aux_payload_t t pc) ->
k: LowParse.Spec.Sum.sum_repr_type t
-> LowParse.Low.Sum.validate_sum_aux_payload_t t
pc
(LowParse.Spec.Enum.maybe_enum_key_of_repr (LowParse.Spec.Sum.sum_enum t) k) | {
"end_col": 153,
"end_line": 189,
"start_col": 2,
"start_line": 189
} |
Prims.Tot | val validate_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos | val validate_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
let validate_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k)) = | false | null | false | fun
cond
(sv_true: (cond_true cond -> Tot (validate_sum_cases_t t pc k)))
(sv_false: (cond_false cond -> Tot (validate_sum_cases_t t pc k)))
#rrel
#rel
input
pos
->
if cond then sv_true () input pos else sv_false () input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.validate_sum_cases_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt64.t",
"LowParse.Spec.Enum.if_combinator",
"LowParse.Low.Sum.validate_sum_cases_t_eq"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k)) | [] | LowParse.Low.Sum.validate_sum_cases_t_if | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Spec.Enum.if_combinator (LowParse.Low.Sum.validate_sum_cases_t t pc k)
(LowParse.Low.Sum.validate_sum_cases_t_eq t pc k) | {
"end_col": 28,
"end_line": 54,
"start_col": 2,
"start_line": 51
} |
Prims.Tot | val gaccessor_clens_sum_cases_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
() | val gaccessor_clens_sum_cases_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k)) = | false | null | false | synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext (gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
() | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.Spec.gaccessor_ext",
"Prims.__proj__Mkdtuple2__item___1",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Combinators.parse_synth",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Sum.synth_sum_case",
"LowParse.Low.Combinators.clens_synth",
"LowParse.Spec.Sum.synth_sum_case_recip",
"LowParse.Low.Combinators.gaccessor_synth",
"LowParse.Low.Sum.clens_sum_cases_payload",
"Prims.unit",
"LowParse.Spec.Combinators.synth_injective_synth_inverse_synth_inverse_recip",
"LowParse.Spec.Sum.synth_sum_case_inverse",
"LowParse.Spec.Sum.synth_sum_case_injective",
"LowParse.Low.Base.Spec.gaccessor",
"FStar.Pervasives.dfst",
"LowParse.Spec.Sum.parse_sum_cases'"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val gaccessor_clens_sum_cases_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k)) | [] | LowParse.Low.Sum.gaccessor_clens_sum_cases_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.Spec.gaccessor (LowParse.Spec.Sum.parse_sum_cases' t pc k)
(FStar.Pervasives.dsnd (pc k))
(LowParse.Low.Sum.clens_sum_cases_payload t k) | {
"end_col": 6,
"end_line": 937,
"start_col": 2,
"start_line": 931
} |
Prims.Tot | val validate_sum_aux_payload'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k) | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic | val validate_sum_aux_payload'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
let validate_sum_aux_payload'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k) = | false | null | false | fun #rrel #rel input pos ->
match k with
| Known k ->
[@@ inline_let ]let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> validator_error_generic | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.validator",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt64.t",
"LowParse.Spec.Enum.enum_key",
"Prims.unit",
"LowParse.Spec.Sum.synth_sum_case_injective",
"LowParse.Low.ErrorCode.validator_error_generic",
"LowParse.Low.Sum.validate_sum_aux_payload_t"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum_aux_payload'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k) | [] | LowParse.Low.Sum.validate_sum_aux_payload' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
pc32:
(x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.validator (FStar.Pervasives.dsnd (pc x))) ->
k: LowParse.Spec.Enum.maybe_enum_key (LowParse.Spec.Sum.sum_enum t)
-> LowParse.Low.Sum.validate_sum_aux_payload_t t pc k | {
"end_col": 34,
"end_line": 179,
"start_col": 2,
"start_line": 172
} |
Prims.Tot | val jump_sum_cases_aux
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
() | val jump_sum_cases_aux
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
let jump_sum_cases_aux
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k)) = | false | null | false | [@@ inline_let ]let _ = synth_sum_case_injective t k in
jump_synth (jump_weaken (weaken_parse_cases_kind t pc) (vc k) ()) (synth_sum_case t k) () | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.jumper",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Combinators.jump_synth",
"LowParse.Spec.Sum.weaken_parse_cases_kind",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Base.weaken",
"LowParse.Low.Combinators.jump_weaken",
"LowParse.Spec.Sum.synth_sum_case",
"Prims.unit",
"LowParse.Spec.Sum.synth_sum_case_injective",
"LowParse.Spec.Sum.parse_sum_cases"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_cases_aux
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k)) | [] | LowParse.Low.Sum.jump_sum_cases_aux | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
vc: (x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.jumper (FStar.Pervasives.dsnd (pc x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.jumper (LowParse.Spec.Sum.parse_sum_cases t pc k) | {
"end_col": 6,
"end_line": 290,
"start_col": 2,
"start_line": 281
} |
Prims.Tot | val gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k | val gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k)) = | false | null | false | Classical.forall_intro_2 (fun x ->
Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x ->
Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc)
(dsnd (pc k))
(clens_sum_payload t k)
(gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Sum.gaccessor_clens_sum_payload'",
"Prims.unit",
"LowParse.Low.Base.Spec.gaccessor_prop_equiv",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.parse_sum",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Sum.clens_sum_payload",
"FStar.Classical.forall_intro_2",
"LowParse.Bytes.bytes",
"Prims.l_imp",
"Prims.l_and",
"Prims.eq2",
"FStar.Pervasives.Native.option",
"LowParse.Spec.Base.parser_subkind",
"LowParse.Spec.Base.__proj__Mkparser_kind'__item__parser_kind_subkind",
"FStar.Pervasives.Native.Some",
"LowParse.Spec.Base.ParserStrong",
"LowParse.Low.Base.Spec.gaccessor_pre",
"LowParse.Spec.Base.no_lookahead_on_precond",
"Prims.nat",
"FStar.Classical.move_requires",
"LowParse.Low.Sum.gaccessor_clens_sum_payload_no_lookahead",
"Prims.l_True",
"Prims.squash",
"Prims.Nil",
"FStar.Pervasives.pattern",
"LowParse.Spec.Base.injective_precond",
"LowParse.Low.Sum.gaccessor_clens_sum_payload_injective",
"LowParse.Low.Base.Spec.gaccessor"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 32,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k)) | [] | LowParse.Low.Sum.gaccessor_clens_sum_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.sum_repr_type t) ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.Spec.gaccessor (LowParse.Spec.Sum.parse_sum t p pc)
(FStar.Pervasives.dsnd (pc k))
(LowParse.Low.Sum.clens_sum_payload t k) | {
"end_col": 39,
"end_line": 869,
"start_col": 2,
"start_line": 866
} |
Prims.Tot | val jump_sum_aux_payload_if'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos | val jump_sum_aux_payload_if'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
let jump_sum_aux_payload_if'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k) = | false | null | false | fun #rrel #rel input pos ->
if cond
then (ift () <: jump_sum_aux_payload_t t pc k) input pos
else (iff () <: jump_sum_aux_payload_t t pc k) input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.jump_sum_aux_payload_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k))) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_aux_payload_if'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k) | [] | LowParse.Low.Sum.jump_sum_aux_payload_if' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Enum.maybe_enum_key (LowParse.Spec.Sum.sum_enum t) ->
cond: Prims.bool ->
ift:
(_: LowParse.Spec.Combinators.cond_true cond -> LowParse.Low.Sum.jump_sum_aux_payload_t t pc k
) ->
iff:
(_: LowParse.Spec.Combinators.cond_false cond
-> LowParse.Low.Sum.jump_sum_aux_payload_t t pc k)
-> LowParse.Low.Sum.jump_sum_aux_payload_t t pc k | {
"end_col": 55,
"end_line": 379,
"start_col": 2,
"start_line": 374
} |
Prims.Tot | val serialize32_sum_cases
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(sc32: (x: sum_key t -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k | val serialize32_sum_cases
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(sc32: (x: sum_key t -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
let serialize32_sum_cases
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(sc32: (x: sum_key t -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k)) = | false | null | false | destr _
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Base.serializer",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Base.serializer32",
"LowParse.Spec.Enum.dep_enum_destr",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.serialize32_sum_cases_t",
"LowParse.Low.Sum.serialize32_sum_cases_t_eq",
"LowParse.Low.Sum.serialize32_sum_cases_t_if",
"LowParse.Spec.Enum.enum_key",
"Prims.unit",
"LowParse.Low.Sum.serialize32_sum_cases_aux",
"LowParse.Spec.Sum.weaken_parse_cases_kind",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Sum.parse_sum_cases",
"LowParse.Spec.Sum.serialize_sum_cases"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val serialize32_sum_cases
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(sc32: (x: sum_key t -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k)) | [] | LowParse.Low.Sum.serialize32_sum_cases | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
sc:
(x: LowParse.Spec.Sum.sum_key t
-> LowParse.Spec.Base.serializer (FStar.Pervasives.dsnd (pc x))) ->
sc32: (x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.serializer32 (sc x)) ->
destr:
LowParse.Spec.Enum.dep_enum_destr (LowParse.Spec.Sum.sum_enum t)
(LowParse.Low.Sum.serialize32_sum_cases_t t sc) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.serializer32 (LowParse.Spec.Sum.serialize_sum_cases t pc sc k) | {
"end_col": 5,
"end_line": 735,
"start_col": 2,
"start_line": 729
} |
Prims.Tot | val clens_sum_payload (s: sum) (k: sum_key s) : Tot (clens (sum_type s) (sum_type_of_tag s k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
} | val clens_sum_payload (s: sum) (k: sum_key s) : Tot (clens (sum_type s) (sum_type_of_tag s k))
let clens_sum_payload (s: sum) (k: sum_key s) : Tot (clens (sum_type s) (sum_type_of_tag s k)) = | false | null | false | {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get
=
(fun (x: sum_type s) ->
synth_sum_case_recip s k x
<:
Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)))
} | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"LowParse.Low.Base.Spec.Mkclens",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.sum_type_of_tag",
"Prims.eq2",
"LowParse.Spec.Sum.sum_tag_of_data",
"LowParse.Spec.Sum.synth_sum_case_recip",
"Prims.l_True",
"LowParse.Low.Base.Spec.clens"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val clens_sum_payload (s: sum) (k: sum_key s) : Tot (clens (sum_type s) (sum_type_of_tag s k)) | [] | LowParse.Low.Sum.clens_sum_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} | s: LowParse.Spec.Sum.sum -> k: LowParse.Spec.Sum.sum_key s
-> LowParse.Low.Base.Spec.clens (LowParse.Spec.Sum.sum_type s)
(LowParse.Spec.Sum.sum_type_of_tag s k) | {
"end_col": 163,
"end_line": 791,
"start_col": 4,
"start_line": 790
} |
Prims.Tot | val validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x | val validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x)) = | false | null | false | validate_dsum_cases_if' s f g x | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Low.Sum.validate_dsum_cases_if'",
"LowParse.Spec.Enum.if_combinator",
"LowParse.Low.Sum.validate_dsum_cases_t",
"LowParse.Low.Sum.validate_dsum_cases_eq"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x)) | [] | LowParse.Low.Sum.validate_dsum_cases_if | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
s: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key s
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag s x))) ->
g: LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_unknown_tag s) ->
x: LowParse.Spec.Sum.dsum_key s
-> LowParse.Spec.Enum.if_combinator (LowParse.Low.Sum.validate_dsum_cases_t s f g x)
(LowParse.Low.Sum.validate_dsum_cases_eq s f g x) | {
"end_col": 33,
"end_line": 1000,
"start_col": 2,
"start_line": 1000
} |
FStar.Pervasives.Lemma | val parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k': sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures
(let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
match k with
| Known k -> Some? (parse (dsnd (pc k)) input_k)
| _ -> False)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input | val parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k': sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures
(let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
match k with
| Known k -> Some? (parse (dsnd (pc k)) input_k)
| _ -> False))
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k': sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures
(let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
match k with
| Known k -> Some? (parse (dsnd (pc k)) input_k)
| _ -> False)) = | false | null | true | parse_sum_eq'' t p pc input | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"lemma"
] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Bytes.bytes",
"LowParse.Spec.Base.consumed_length",
"LowParse.Spec.Sum.parse_sum_eq''",
"Prims.unit",
"Prims.l_and",
"Prims.b2t",
"FStar.Pervasives.Native.uu___is_Some",
"FStar.Pervasives.Native.tuple2",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Base.parse",
"LowParse.Spec.Sum.parse_sum",
"Prims.eq2",
"FStar.Pervasives.Native.option",
"FStar.Pervasives.Native.Some",
"FStar.Pervasives.Native.Mktuple2",
"Prims.squash",
"LowParse.Spec.Enum.enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.maybe_enum_key",
"Prims.l_False",
"LowParse.Spec.Enum.maybe_enum_key_of_repr",
"FStar.Seq.Base.seq",
"LowParse.Bytes.byte",
"FStar.Seq.Base.slice",
"FStar.Seq.Base.length",
"Prims.Nil",
"FStar.Pervasives.pattern"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k': sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures
(let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
match k with
| Known k -> Some? (parse (dsnd (pc k)) input_k)
| _ -> False)) | [] | LowParse.Low.Sum.parse_sum_eq3 | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.sum_repr_type t) ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
input: LowParse.Bytes.bytes ->
k': LowParse.Spec.Sum.sum_repr_type t ->
consumed_k: LowParse.Spec.Base.consumed_length input
-> FStar.Pervasives.Lemma
(requires
Some? (LowParse.Spec.Base.parse (LowParse.Spec.Sum.parse_sum t p pc) input) /\
LowParse.Spec.Base.parse p input == FStar.Pervasives.Native.Some (k', consumed_k))
(ensures
(let input_k = FStar.Seq.Base.slice input consumed_k (FStar.Seq.Base.length input) in
let k = LowParse.Spec.Enum.maybe_enum_key_of_repr (LowParse.Spec.Sum.sum_enum t) k' in
(match k with
| LowParse.Spec.Enum.Known #_ #_ #_ k ->
Some? (LowParse.Spec.Base.parse (FStar.Pervasives.dsnd (pc k)) input_k)
| _ -> Prims.l_False)
<:
Type0)) | {
"end_col": 29,
"end_line": 408,
"start_col": 2,
"start_line": 408
} |
Prims.Tot | val validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len | val validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x) = | false | null | false | fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_key",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.validate_dsum_cases_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt64.t"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x))) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x) | [] | LowParse.Low.Sum.validate_dsum_cases_if' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
s: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key s
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag s x))) ->
g: LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_unknown_tag s) ->
x: LowParse.Spec.Sum.dsum_key s ->
cond: Prims.bool ->
ift:
(_: LowParse.Spec.Combinators.cond_true cond -> LowParse.Low.Sum.validate_dsum_cases_t s f g x
) ->
iff:
(_: LowParse.Spec.Combinators.cond_false cond
-> LowParse.Low.Sum.validate_dsum_cases_t s f g x)
-> LowParse.Low.Sum.validate_dsum_cases_t s f g x | {
"end_col": 58,
"end_line": 990,
"start_col": 2,
"start_line": 987
} |
Prims.Tot | val read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos | val read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k)) = | false | null | false | fun
cond
(sv_true: (cond_true cond -> Tot (read_dsum_cases_t t f g k)))
(sv_false: (cond_false cond -> Tot (read_dsum_cases_t t f g k)))
#_
#_
input
pos
->
if cond then sv_true () input pos else sv_false () input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.read_dsum_cases_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"LowParse.Spec.Sum.dsum_cases",
"LowParse.Spec.Enum.Known",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Spec.Enum.if_combinator",
"LowParse.Low.Sum.read_dsum_cases_t_eq"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k)) | [] | LowParse.Low.Sum.read_dsum_cases_t_if | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser k' (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
k: LowParse.Spec.Sum.dsum_known_key t
-> LowParse.Spec.Enum.if_combinator (LowParse.Low.Sum.read_dsum_cases_t t f g k)
(LowParse.Low.Sum.read_dsum_cases_t_eq t f g k) | {
"end_col": 28,
"end_line": 1574,
"start_col": 2,
"start_line": 1571
} |
Prims.Tot | val jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload:
(k: sum_repr_type t
-> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))))
: Tot (jumper (parse_sum t p pc)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag | val jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload:
(k: sum_repr_type t
-> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))))
: Tot (jumper (parse_sum t p pc))
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload:
(k: sum_repr_type t
-> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))))
: Tot (jumper (parse_sum t p pc)) = | false | null | false | fun #rrel #rel input pos ->
let h = HST.get () in
[@@ inline_let ]let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Low.Base.jumper",
"LowParse.Low.Base.leaf_reader",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Sum.jump_sum_aux_payload_t",
"LowParse.Spec.Enum.maybe_enum_key_of_repr",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"Prims.unit",
"LowParse.Low.Sum.valid_sum_elim",
"FStar.Monotonic.HyperStack.mem",
"FStar.HyperStack.ST.get",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.parse_sum"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload:
(k: sum_repr_type t
-> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))))
: Tot (jumper (parse_sum t p pc)) | [] | LowParse.Low.Sum.jump_sum_aux | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
v: LowParse.Low.Base.jumper p ->
p32: LowParse.Low.Base.leaf_reader p ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
v_payload:
(k: LowParse.Spec.Sum.sum_repr_type t
-> LowParse.Low.Sum.jump_sum_aux_payload_t t
pc
(LowParse.Spec.Enum.maybe_enum_key_of_repr (LowParse.Spec.Sum.sum_enum t) k))
-> LowParse.Low.Base.jumper (LowParse.Spec.Sum.parse_sum t p pc) | {
"end_col": 34,
"end_line": 542,
"start_col": 2,
"start_line": 536
} |
Prims.Tot | val validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x) | val validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x) = | false | null | false | [@@ inline_let ]let _ = synth_dsum_case_injective s x in
match x with
| Known x' ->
validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' ->
validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Low.Base.validator",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Spec.Enum.enum_key",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Low.Combinators.validate_synth",
"LowParse.Spec.Sum.dsum_cases",
"LowParse.Spec.Sum.synth_dsum_case",
"LowParse.Spec.Enum.Known",
"LowParse.Spec.Sum.parse_dsum_cases_kind",
"LowParse.Spec.Sum.parse_dsum_cases'",
"LowParse.Spec.Enum.unknown_enum_repr",
"LowParse.Spec.Enum.Unknown",
"LowParse.Low.Sum.validate_dsum_cases_t",
"Prims.unit",
"LowParse.Spec.Sum.synth_dsum_case_injective"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x) | [] | LowParse.Low.Sum.validate_dsum_cases' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
s: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key s
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag s x))) ->
f':
(x: LowParse.Spec.Sum.dsum_known_key s
-> LowParse.Low.Base.validator (FStar.Pervasives.dsnd (f x))) ->
g': LowParse.Low.Base.validator g ->
x: LowParse.Spec.Sum.dsum_key s
-> LowParse.Low.Sum.validate_dsum_cases_t s f g x | {
"end_col": 112,
"end_line": 1016,
"start_col": 2,
"start_line": 1012
} |
Prims.Tot | val serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos) | val serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k)) = | false | null | false | fun
cond
(sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k)))
(sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k)))
x
#rrel
#rel
output
pos
->
if cond then (sv_true () x output pos) else (sv_false () x output pos) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Base.serializer",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.serialize32_dsum_cases_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Spec.Sum.dsum_cases",
"LowParse.Spec.Enum.Known",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_enum",
"LowStar.Monotonic.Buffer.srel",
"LowParse.Bytes.byte",
"LowStar.Monotonic.Buffer.mbuffer",
"FStar.UInt32.t",
"LowParse.Spec.Enum.if_combinator",
"LowParse.Low.Sum.serialize32_dsum_cases_t_eq"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k)) | [] | LowParse.Low.Sum.serialize32_dsum_cases_t_if | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
sf:
(x: LowParse.Spec.Sum.dsum_known_key t
-> LowParse.Spec.Base.serializer (FStar.Pervasives.dsnd (f x))) ->
g: LowParse.Spec.Base.parser k' (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
sg: LowParse.Spec.Base.serializer g ->
k: LowParse.Spec.Sum.dsum_known_key t
-> LowParse.Spec.Enum.if_combinator (LowParse.Low.Sum.serialize32_dsum_cases_t t f sf g sg k)
(LowParse.Low.Sum.serialize32_dsum_cases_t_eq t f sf g sg k) | {
"end_col": 33,
"end_line": 1706,
"start_col": 2,
"start_line": 1703
} |
Prims.Tot | val serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(sf32: (x: dsum_known_key t -> Tot (serializer32 (sf x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) () | val serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(sf32: (x: dsum_known_key t -> Tot (serializer32 (sf x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(sf32: (x: dsum_known_key t -> Tot (serializer32 (sf x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg)) = | false | null | false | match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) () | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Base.serializer",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Base.serializer32",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Spec.Enum.enum_key",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Low.Base.serialize32_ext",
"LowParse.Spec.Sum.weaken_parse_dsum_cases_kind",
"LowParse.Spec.Sum.dsum_type_of_tag",
"LowParse.Spec.Sum.parse_dsum_type_of_tag",
"LowParse.Spec.Enum.unknown_enum_repr",
"LowParse.Spec.Sum.serialize_dsum_type_of_tag"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(sf: (x: dsum_known_key t -> Tot (serializer (dsnd (f x)))))
(sf32: (x: dsum_known_key t -> Tot (serializer32 (sf x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg)) | [] | LowParse.Low.Sum.serialize32_dsum_type_of_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
sf:
(x: LowParse.Spec.Sum.dsum_known_key t
-> LowParse.Spec.Base.serializer (FStar.Pervasives.dsnd (f x))) ->
sf32: (x: LowParse.Spec.Sum.dsum_known_key t -> LowParse.Low.Base.serializer32 (sf x)) ->
sg32: LowParse.Low.Base.serializer32 sg ->
tg: LowParse.Spec.Sum.dsum_key t
-> LowParse.Low.Base.serializer32 (LowParse.Spec.Sum.serialize_dsum_type_of_tag t f sf g sg tg) | {
"end_col": 80,
"end_line": 1644,
"start_col": 2,
"start_line": 1642
} |
FStar.HyperStack.ST.Stack | val read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h -> valid (parse_sum t p pc) h input pos))
(ensures
(fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos))) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos | val read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h -> valid (parse_sum t p pc) h input pos))
(ensures
(fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)))
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h -> valid (parse_sum t p pc) h input pos))
(ensures
(fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos))) = | true | null | false | let h = HST.get () in
[@@ inline_let ]let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Low.Base.leaf_reader",
"LowParse.Spec.Enum.dep_maybe_enum_destr_t",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Enum.read_enum_key_t",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"LowParse.Low.Enum.read_enum_key",
"LowParse.Spec.Enum.enum_key",
"Prims.unit",
"LowParse.Low.Sum.valid_sum_elim_tag",
"FStar.Monotonic.HyperStack.mem",
"FStar.HyperStack.ST.get",
"LowParse.Low.Base.Spec.valid",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.parse_sum",
"Prims.l_and",
"LowStar.Monotonic.Buffer.modifies",
"LowStar.Monotonic.Buffer.loc_none",
"Prims.eq2",
"LowParse.Spec.Sum.sum_tag_of_data",
"LowParse.Low.Base.Spec.contents"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h -> valid (parse_sum t p pc) h input pos))
(ensures
(fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos))) | [] | LowParse.Low.Sum.read_sum_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
p32: LowParse.Low.Base.leaf_reader p ->
destr:
LowParse.Spec.Enum.dep_maybe_enum_destr_t (LowParse.Spec.Sum.sum_enum t)
(LowParse.Low.Enum.read_enum_key_t (LowParse.Spec.Sum.sum_enum t)) ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
input: LowParse.Slice.slice rrel rel ->
pos: FStar.UInt32.t
-> FStar.HyperStack.ST.Stack (LowParse.Spec.Sum.sum_key t) | {
"end_col": 48,
"end_line": 524,
"start_col": 1,
"start_line": 522
} |
FStar.Pervasives.Lemma | val parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k': sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires
(Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\
(let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\
(let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload)
| _ -> False)))
(ensures
(let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input | val parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k': sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires
(Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\
(let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\
(let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload)
| _ -> False)))
(ensures
(let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload))
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k': sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires
(Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\
(let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\
(let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload)
| _ -> False)))
(ensures
(let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload)) = | false | null | true | parse_sum_eq'' t p pc input | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"lemma"
] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Bytes.bytes",
"LowParse.Spec.Base.consumed_length",
"Prims.nat",
"LowParse.Spec.Sum.parse_sum_eq''",
"Prims.unit",
"Prims.l_and",
"Prims.b2t",
"FStar.Pervasives.Native.uu___is_Some",
"FStar.Pervasives.Native.tuple2",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Base.parse",
"LowParse.Spec.Sum.parse_sum",
"Prims.eq2",
"FStar.Pervasives.Native.option",
"FStar.Pervasives.Native.Some",
"FStar.Pervasives.Native.Mktuple2",
"LowParse.Spec.Enum.enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"FStar.Pervasives.dsnd",
"Prims.logical",
"LowParse.Spec.Enum.maybe_enum_key",
"Prims.l_False",
"LowParse.Spec.Enum.maybe_enum_key_of_repr",
"FStar.Seq.Base.seq",
"LowParse.Bytes.byte",
"FStar.Seq.Base.slice",
"FStar.Seq.Base.length",
"Prims.squash",
"Prims.int",
"Prims.op_Addition",
"Prims.Nil",
"FStar.Pervasives.pattern"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k': sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires
(Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\
(let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\
(let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload)
| _ -> False)))
(ensures
(let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload)) | [] | LowParse.Low.Sum.parse_sum_eq4 | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.sum_repr_type t) ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
input: LowParse.Bytes.bytes ->
k': LowParse.Spec.Sum.sum_repr_type t ->
consumed_k: LowParse.Spec.Base.consumed_length input ->
consumed_payload: Prims.nat
-> FStar.Pervasives.Lemma
(requires
Some? (LowParse.Spec.Base.parse (LowParse.Spec.Sum.parse_sum t p pc) input) /\
LowParse.Spec.Base.parse p input == FStar.Pervasives.Native.Some (k', consumed_k) /\
(let input_k = FStar.Seq.Base.slice input consumed_k (FStar.Seq.Base.length input) in
let k = LowParse.Spec.Enum.maybe_enum_key_of_repr (LowParse.Spec.Sum.sum_enum t) k' in
(match k with
| LowParse.Spec.Enum.Known #_ #_ #_ k ->
Some? (LowParse.Spec.Base.parse (FStar.Pervasives.dsnd (pc k)) input_k) /\
(let _ = LowParse.Spec.Base.parse (FStar.Pervasives.dsnd (pc k)) input_k in
(let
FStar.Pervasives.Native.Some
#_
(FStar.Pervasives.Native.Mktuple2 #_ #_ _ consumed_payload') =
_
in
consumed_payload' == consumed_payload)
<:
Prims.logical)
| _ -> Prims.l_False)
<:
Prims.logical))
(ensures
(let _ = LowParse.Spec.Base.parse (LowParse.Spec.Sum.parse_sum t p pc) input in
(let FStar.Pervasives.Native.Some #_ (FStar.Pervasives.Native.Mktuple2 #_ #_ _ consumed) =
_
in
consumed == consumed_k + consumed_payload)
<:
Type0)) | {
"end_col": 29,
"end_line": 436,
"start_col": 2,
"start_line": 436
} |
FStar.HyperStack.ST.Stack | val read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h -> valid (parse_dsum t p f g) h input pos))
(ensures
(fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos | val read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h -> valid (parse_dsum t p f g) h input pos))
(ensures
(fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)))
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h -> valid (parse_dsum t p f g) h input pos))
(ensures
(fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))) = | true | null | false | let h = HST.get () in
[@@ inline_let ]let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Low.Base.leaf_reader",
"LowParse.Spec.Enum.maybe_enum_destr_t",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"LowParse.Low.Enum.read_maybe_enum_key",
"Prims.unit",
"LowParse.Low.Sum.valid_dsum_elim_tag",
"LowParse.Spec.Sum.dsum_key",
"FStar.Monotonic.HyperStack.mem",
"FStar.HyperStack.ST.get",
"LowParse.Low.Base.Spec.valid",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.parse_dsum",
"Prims.l_and",
"LowStar.Monotonic.Buffer.modifies",
"LowStar.Monotonic.Buffer.loc_none",
"Prims.eq2",
"LowParse.Spec.Sum.dsum_tag_of_data",
"LowParse.Low.Base.Spec.contents"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h -> valid (parse_dsum t p f g) h input pos))
(ensures
(fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))) | [] | LowParse.Low.Sum.read_dsum_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
p32: LowParse.Low.Base.leaf_reader p ->
destr:
LowParse.Spec.Enum.maybe_enum_destr_t (LowParse.Spec.Enum.maybe_enum_key (LowParse.Spec.Sum.dsum_enum
t))
(LowParse.Spec.Sum.dsum_enum t) ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
input: LowParse.Slice.slice rrel rel ->
pos: FStar.UInt32.t
-> FStar.HyperStack.ST.Stack (LowParse.Spec.Sum.dsum_key t) | {
"end_col": 55,
"end_line": 1297,
"start_col": 1,
"start_line": 1295
} |
Prims.GTot | val read_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: read_sum_cases_t t pc k)
: GTot Type0 | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True | val read_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: read_sum_cases_t t pc k)
: GTot Type0
let read_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: read_sum_cases_t t pc k)
: GTot Type0 = | false | null | false | True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Sum.read_sum_cases_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val read_sum_cases_t_eq
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y: read_sum_cases_t t pc k)
: GTot Type0 | [] | LowParse.Low.Sum.read_sum_cases_t_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t ->
x: LowParse.Low.Sum.read_sum_cases_t t pc k ->
y: LowParse.Low.Sum.read_sum_cases_t t pc k
-> Prims.GTot Type0 | {
"end_col": 6,
"end_line": 611,
"start_col": 2,
"start_line": 611
} |
Prims.Tot | val gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot
(gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_injective t p f g k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_no_lookahead t p f g k x));
gaccessor_prop_equiv (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) (gaccessor_clens_dsum_payload' t p f g k);
gaccessor_clens_dsum_payload' t p f g k | val gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot
(gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
let gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot
(gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k)) = | false | null | false | Classical.forall_intro_2 (fun x ->
Classical.move_requires (gaccessor_clens_dsum_payload_injective t p f g k x));
Classical.forall_intro_2 (fun x ->
Classical.move_requires (gaccessor_clens_dsum_payload_no_lookahead t p f g k x));
gaccessor_prop_equiv (parse_dsum t p f g)
(parse_dsum_type_of_tag' t f g k)
(clens_dsum_payload t k)
(gaccessor_clens_dsum_payload' t p f g k);
gaccessor_clens_dsum_payload' t p f g k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Low.Sum.gaccessor_clens_dsum_payload'",
"Prims.unit",
"LowParse.Low.Base.Spec.gaccessor_prop_equiv",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.parse_dsum",
"LowParse.Spec.Sum.parse_dsum_cases_kind",
"LowParse.Spec.Sum.dsum_type_of_tag",
"LowParse.Spec.Sum.parse_dsum_type_of_tag'",
"LowParse.Low.Sum.clens_dsum_payload",
"FStar.Classical.forall_intro_2",
"LowParse.Bytes.bytes",
"Prims.l_imp",
"Prims.l_and",
"Prims.eq2",
"FStar.Pervasives.Native.option",
"LowParse.Spec.Base.parser_subkind",
"LowParse.Spec.Base.__proj__Mkparser_kind'__item__parser_kind_subkind",
"FStar.Pervasives.Native.Some",
"LowParse.Spec.Base.ParserStrong",
"LowParse.Low.Base.Spec.gaccessor_pre",
"LowParse.Spec.Base.no_lookahead_on_precond",
"Prims.nat",
"FStar.Classical.move_requires",
"LowParse.Low.Sum.gaccessor_clens_dsum_payload_no_lookahead",
"Prims.l_True",
"Prims.squash",
"Prims.Nil",
"FStar.Pervasives.pattern",
"LowParse.Spec.Base.injective_precond",
"LowParse.Low.Sum.gaccessor_clens_dsum_payload_injective",
"LowParse.Low.Base.Spec.gaccessor"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
}
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
= gaccessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
inline_for_extraction
let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g))
= accessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
let clens_dsum_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_type s) (dsum_type_of_tag s k))
= {
clens_cond = (fun (x: dsum_type s) -> dsum_tag_of_data s x == k);
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s k x <: Ghost (dsum_type_of_tag s k) (requires (dsum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
let clens_dsum_unknown_payload
(s: dsum)
: Tot (clens (dsum_type s) (dsum_type_of_unknown_tag s))
= {
clens_cond = (fun (x: dsum_type s) -> Unknown? (dsum_tag_of_data s x));
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s (dsum_tag_of_data s x) x <: Ghost (dsum_type_of_unknown_tag s) (requires (Unknown? (dsum_tag_of_data s x))) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) input res } ))
let gaccessor_clens_dsum_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 16,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot
(gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k)) | [] | LowParse.Low.Sum.gaccessor_clens_dsum_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.dsum_repr_type t) ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
k: LowParse.Spec.Sum.dsum_key t
-> LowParse.Low.Base.Spec.gaccessor (LowParse.Spec.Sum.parse_dsum t p f g)
(LowParse.Spec.Sum.parse_dsum_type_of_tag' t f g k)
(LowParse.Low.Sum.clens_dsum_payload t k) | {
"end_col": 41,
"end_line": 1901,
"start_col": 2,
"start_line": 1898
} |
Prims.Tot | val gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) g (clens_dsum_unknown_payload t)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_injective t p f g x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_no_lookahead t p f g x));
gaccessor_prop_equiv (parse_dsum t p f g) g (clens_dsum_unknown_payload t) (gaccessor_clens_dsum_unknown_payload' t p f g);
gaccessor_clens_dsum_unknown_payload' t p f g | val gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
let gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) g (clens_dsum_unknown_payload t)) = | false | null | false | Classical.forall_intro_2 (fun x ->
Classical.move_requires (gaccessor_clens_dsum_unknown_payload_injective t p f g x));
Classical.forall_intro_2 (fun x ->
Classical.move_requires (gaccessor_clens_dsum_unknown_payload_no_lookahead t p f g x));
gaccessor_prop_equiv (parse_dsum t p f g)
g
(clens_dsum_unknown_payload t)
(gaccessor_clens_dsum_unknown_payload' t p f g);
gaccessor_clens_dsum_unknown_payload' t p f g | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Low.Sum.gaccessor_clens_dsum_unknown_payload'",
"Prims.unit",
"LowParse.Low.Base.Spec.gaccessor_prop_equiv",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.parse_dsum",
"LowParse.Low.Sum.clens_dsum_unknown_payload",
"FStar.Classical.forall_intro_2",
"LowParse.Bytes.bytes",
"Prims.l_imp",
"Prims.l_and",
"Prims.eq2",
"FStar.Pervasives.Native.option",
"LowParse.Spec.Base.parser_subkind",
"LowParse.Spec.Base.__proj__Mkparser_kind'__item__parser_kind_subkind",
"FStar.Pervasives.Native.Some",
"LowParse.Spec.Base.ParserStrong",
"LowParse.Low.Base.Spec.gaccessor_pre",
"LowParse.Spec.Base.no_lookahead_on_precond",
"Prims.nat",
"FStar.Classical.move_requires",
"LowParse.Low.Sum.gaccessor_clens_dsum_unknown_payload_no_lookahead",
"Prims.l_True",
"Prims.squash",
"Prims.Nil",
"FStar.Pervasives.pattern",
"LowParse.Spec.Base.injective_precond",
"LowParse.Low.Sum.gaccessor_clens_dsum_unknown_payload_injective",
"LowParse.Low.Base.Spec.gaccessor"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
}
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
= gaccessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
inline_for_extraction
let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g))
= accessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
let clens_dsum_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_type s) (dsum_type_of_tag s k))
= {
clens_cond = (fun (x: dsum_type s) -> dsum_tag_of_data s x == k);
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s k x <: Ghost (dsum_type_of_tag s k) (requires (dsum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
let clens_dsum_unknown_payload
(s: dsum)
: Tot (clens (dsum_type s) (dsum_type_of_unknown_tag s))
= {
clens_cond = (fun (x: dsum_type s) -> Unknown? (dsum_tag_of_data s x));
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s (dsum_tag_of_data s x) x <: Ghost (dsum_type_of_unknown_tag s) (requires (Unknown? (dsum_tag_of_data s x))) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) input res } ))
let gaccessor_clens_dsum_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_injective t p f g k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_no_lookahead t p f g k x));
gaccessor_prop_equiv (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) (gaccessor_clens_dsum_payload' t p f g k);
gaccessor_clens_dsum_payload' t p f g k
inline_for_extraction
let accessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_payload t k).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_payload t p f g k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_payload t p f g k) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k))
= fun #rrel #rel -> accessor_clens_dsum_payload' t j f g k #rrel #rel
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor' (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (tg, consumed) ->
let k = maybe_enum_key_of_repr (dsum_enum t) tg in
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) g (clens_dsum_unknown_payload t) input res } ))
let gaccessor_clens_dsum_unknown_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 16,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) g (clens_dsum_unknown_payload t)) | [] | LowParse.Low.Sum.gaccessor_clens_dsum_unknown_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.dsum_repr_type t) ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t)
-> LowParse.Low.Base.Spec.gaccessor (LowParse.Spec.Sum.parse_dsum t p f g)
g
(LowParse.Low.Sum.clens_dsum_unknown_payload t) | {
"end_col": 47,
"end_line": 2030,
"start_col": 2,
"start_line": 2027
} |
Prims.Tot | val validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos | val validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x)) = | false | null | false | fun #rrel #rel input pos ->
let h = HST.get () in
[@@ inline_let ]let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Low.Base.validator",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Enum.dep_enum_destr",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Spec.Enum.enum_key",
"LowParse.Low.Sum.validate_dsum_cases_t",
"LowParse.Spec.Enum.Known",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt64.t",
"LowParse.Low.Sum.validate_dsum_cases'_destr",
"Prims.unit",
"LowParse.Spec.Sum.parse_dsum_cases_eq'",
"LowParse.Slice.bytes_of_slice_from",
"LowParse.Low.ErrorCode.uint64_to_uint32",
"LowParse.Low.Base.Spec.valid_facts",
"LowParse.Spec.Sum.weaken_parse_dsum_cases_kind",
"LowParse.Spec.Sum.dsum_cases",
"LowParse.Spec.Sum.parse_dsum_cases",
"LowParse.Spec.Sum.parse_dsum_cases_kind",
"LowParse.Spec.Sum.parse_dsum_cases'",
"FStar.Monotonic.HyperStack.mem",
"FStar.HyperStack.ST.get"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x)) | [] | LowParse.Low.Sum.validate_dsum_cases | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
s: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key s
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag s x))) ->
f':
(x: LowParse.Spec.Sum.dsum_known_key s
-> LowParse.Low.Base.validator (FStar.Pervasives.dsnd (f x))) ->
g': LowParse.Low.Base.validator g ->
destr:
LowParse.Spec.Enum.dep_enum_destr (LowParse.Spec.Sum.dsum_enum s)
(fun k -> LowParse.Low.Sum.validate_dsum_cases_t s f g (LowParse.Spec.Enum.Known k)) ->
x: LowParse.Spec.Sum.dsum_key s
-> LowParse.Low.Base.validator (LowParse.Spec.Sum.parse_dsum_cases s f g x) | {
"end_col": 56,
"end_line": 1062,
"start_col": 2,
"start_line": 1054
} |
Prims.Tot | val accessor_clens_dsum_cases_unknown_payload
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_unknown_key t)
: Tot (accessor (gaccessor_clens_dsum_cases_unknown_payload t f g k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let accessor_clens_dsum_cases_unknown_payload
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_unknown_key t)
: Tot (accessor (gaccessor_clens_dsum_cases_unknown_payload t f g k))
= [@inline_let]
let _ =
synth_dsum_case_injective t (Unknown k);
synth_dsum_case_inverse t (Unknown k);
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t (Unknown k)) (synth_dsum_case_recip t (Unknown k)) ()
in
accessor_ext
(accessor_synth g (synth_dsum_case t (Unknown k)) (synth_dsum_case_recip t (Unknown k)) ())
(clens_dsum_cases_payload t (Unknown k))
() | val accessor_clens_dsum_cases_unknown_payload
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_unknown_key t)
: Tot (accessor (gaccessor_clens_dsum_cases_unknown_payload t f g k))
let accessor_clens_dsum_cases_unknown_payload
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_unknown_key t)
: Tot (accessor (gaccessor_clens_dsum_cases_unknown_payload t f g k)) = | false | null | false | [@@ inline_let ]let _ =
synth_dsum_case_injective t (Unknown k);
synth_dsum_case_inverse t (Unknown k);
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t (Unknown k))
(synth_dsum_case_recip t (Unknown k))
()
in
accessor_ext (accessor_synth g
(synth_dsum_case t (Unknown k))
(synth_dsum_case_recip t (Unknown k))
())
(clens_dsum_cases_payload t (Unknown k))
() | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_unknown_key",
"LowParse.Low.Base.accessor_ext",
"LowParse.Spec.Sum.dsum_cases",
"LowParse.Spec.Enum.Unknown",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Spec.Combinators.parse_synth",
"LowParse.Spec.Sum.synth_dsum_case",
"LowParse.Low.Combinators.clens_synth",
"LowParse.Spec.Sum.synth_dsum_case_recip",
"LowParse.Low.Combinators.gaccessor_synth",
"LowParse.Low.Combinators.accessor_synth",
"LowParse.Low.Sum.clens_dsum_cases_payload",
"Prims.squash",
"LowParse.Spec.Combinators.synth_inverse",
"LowParse.Spec.Base.refine_with_tag",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.dsum_tag_of_data",
"LowParse.Spec.Sum.dsum_type_of_tag",
"LowParse.Spec.Combinators.synth_injective_synth_inverse_synth_inverse_recip",
"Prims.unit",
"LowParse.Spec.Sum.synth_dsum_case_inverse",
"LowParse.Spec.Sum.synth_dsum_case_injective",
"LowParse.Low.Base.accessor",
"LowParse.Spec.Sum.parse_dsum_cases_kind",
"LowParse.Spec.Sum.parse_dsum_cases'",
"LowParse.Low.Sum.gaccessor_clens_dsum_cases_unknown_payload"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
}
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
= gaccessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
inline_for_extraction
let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g))
= accessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
let clens_dsum_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_type s) (dsum_type_of_tag s k))
= {
clens_cond = (fun (x: dsum_type s) -> dsum_tag_of_data s x == k);
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s k x <: Ghost (dsum_type_of_tag s k) (requires (dsum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
let clens_dsum_unknown_payload
(s: dsum)
: Tot (clens (dsum_type s) (dsum_type_of_unknown_tag s))
= {
clens_cond = (fun (x: dsum_type s) -> Unknown? (dsum_tag_of_data s x));
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s (dsum_tag_of_data s x) x <: Ghost (dsum_type_of_unknown_tag s) (requires (Unknown? (dsum_tag_of_data s x))) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) input res } ))
let gaccessor_clens_dsum_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_injective t p f g k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_no_lookahead t p f g k x));
gaccessor_prop_equiv (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) (gaccessor_clens_dsum_payload' t p f g k);
gaccessor_clens_dsum_payload' t p f g k
inline_for_extraction
let accessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_payload t k).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_payload t p f g k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_payload t p f g k) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k))
= fun #rrel #rel -> accessor_clens_dsum_payload' t j f g k #rrel #rel
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor' (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (tg, consumed) ->
let k = maybe_enum_key_of_repr (dsum_enum t) tg in
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) g (clens_dsum_unknown_payload t) input res } ))
let gaccessor_clens_dsum_unknown_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_injective t p f g x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_no_lookahead t p f g x));
gaccessor_prop_equiv (parse_dsum t p f g) g (clens_dsum_unknown_payload t) (gaccessor_clens_dsum_unknown_payload' t p f g);
gaccessor_clens_dsum_unknown_payload' t p f g
inline_for_extraction
let accessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_unknown_payload t).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_unknown_payload t p f g) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_unknown_payload t p f g) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p { kt.parser_kind_subkind == Some ParserStrong })
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_clens_dsum_unknown_payload t p f g))
= fun #rrel #rel -> accessor_clens_dsum_unknown_payload' t j f g #rrel #rel
let clens_dsum_cases_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_cases s k) (dsum_type_of_tag s k))
= {
clens_cond = (fun (x: dsum_cases s k) -> True);
clens_get = (fun (x: dsum_cases s k) -> synth_dsum_case_recip s k x <: Ghost (dsum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_dsum_cases_known_payload
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (gaccessor (parse_dsum_cases' t f g (Known k)) (dsnd (f k)) (clens_dsum_cases_payload t (Known k)))
= synth_dsum_case_injective t (Known k);
synth_dsum_case_inverse t (Known k);
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t (Known k)) (synth_dsum_case_recip t (Known k)) ();
gaccessor_ext
(gaccessor_synth (dsnd (f k)) (synth_dsum_case t (Known k)) (synth_dsum_case_recip t (Known k)) ())
(clens_dsum_cases_payload t (Known k))
()
inline_for_extraction
let accessor_clens_dsum_cases_known_payload
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (accessor (gaccessor_clens_dsum_cases_known_payload t f g k))
= [@inline_let]
let _ =
synth_dsum_case_injective t (Known k);
synth_dsum_case_inverse t (Known k);
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t (Known k)) (synth_dsum_case_recip t (Known k)) ()
in
accessor_ext
(accessor_synth (dsnd (f k)) (synth_dsum_case t (Known k)) (synth_dsum_case_recip t (Known k)) ())
(clens_dsum_cases_payload t (Known k))
()
let gaccessor_clens_dsum_cases_unknown_payload
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_unknown_key t)
: Tot (gaccessor (parse_dsum_cases' t f g (Unknown k)) g (clens_dsum_cases_payload t (Unknown k)))
= synth_dsum_case_injective t (Unknown k);
synth_dsum_case_inverse t (Unknown k);
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t (Unknown k)) (synth_dsum_case_recip t (Unknown k)) ();
gaccessor_ext
(gaccessor_synth g (synth_dsum_case t (Unknown k)) (synth_dsum_case_recip t (Unknown k)) ())
(clens_dsum_cases_payload t (Unknown k))
()
inline_for_extraction
let accessor_clens_dsum_cases_unknown_payload
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_unknown_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val accessor_clens_dsum_cases_unknown_payload
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_unknown_key t)
: Tot (accessor (gaccessor_clens_dsum_cases_unknown_payload t f g k)) | [] | LowParse.Low.Sum.accessor_clens_dsum_cases_unknown_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
k: LowParse.Spec.Sum.dsum_unknown_key t
-> LowParse.Low.Base.accessor (LowParse.Low.Sum.gaccessor_clens_dsum_cases_unknown_payload t f g k
) | {
"end_col": 6,
"end_line": 2155,
"start_col": 2,
"start_line": 2146
} |
FStar.HyperStack.ST.Stack | val accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires
(fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)))
(ensures
(fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos | val accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires
(fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)))
(ensures
(fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos))
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires
(fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)))
(ensures
(fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos)) = | true | null | false | let h = HST.get () in
[@@ inline_let ]let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Low.Base.jumper",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"Prims.unit",
"LowParse.Low.Base.Spec.valid_facts",
"LowParse.Spec.Sum.parse_sum_eq''",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.parse_sum",
"LowParse.Low.Base.Spec.slice_access_eq",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Sum.clens_sum_payload",
"LowParse.Low.Sum.gaccessor_clens_sum_payload",
"LowParse.Bytes.bytes",
"LowParse.Slice.bytes_of_slice_from",
"LowParse.Low.Base.Spec.get_valid_pos",
"FStar.Monotonic.HyperStack.mem",
"FStar.HyperStack.ST.get",
"Prims.l_and",
"LowParse.Low.Base.Spec.valid",
"LowParse.Low.Base.Spec.__proj__Mkclens__item__clens_cond",
"LowParse.Low.Base.Spec.contents",
"LowStar.Monotonic.Buffer.modifies",
"LowStar.Monotonic.Buffer.loc_none",
"Prims.eq2",
"LowParse.Low.Base.Spec.slice_access"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 32,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires
(fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)))
(ensures
(fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos)) | [] | LowParse.Low.Sum.accessor_clens_sum_payload' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
j: LowParse.Low.Base.jumper p ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t ->
input: LowParse.Slice.slice rrel rel ->
pos: FStar.UInt32.t
-> FStar.HyperStack.ST.Stack FStar.UInt32.t | {
"end_col": 13,
"end_line": 902,
"start_col": 1,
"start_line": 891
} |
FStar.Pervasives.Lemma | val valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires
(valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
(let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos))))
(ensures
(let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos (parse_dsum t p f g)
h
input
pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload))) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos) | val valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires
(valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
(let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos))))
(ensures
(let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos (parse_dsum t p f g)
h
input
pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)))
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires
(valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
(let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos))))
(ensures
(let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos (parse_dsum t p f g)
h
input
pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload))) = | false | null | true | valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"lemma"
] | [
"FStar.Monotonic.HyperStack.mem",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"LowParse.Spec.Enum.unknown_enum_repr",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Spec.Sum.parse_dsum_eq",
"LowParse.Slice.bytes_of_slice_from",
"Prims.unit",
"LowParse.Low.Base.Spec.valid_facts",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.parse_dsum",
"LowParse.Low.Base.Spec.get_valid_pos",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Enum.parse_maybe_enum_key",
"LowParse.Low.Base.Spec.contents",
"Prims.l_and",
"LowParse.Low.Base.Spec.valid",
"Prims.b2t",
"LowParse.Spec.Enum.uu___is_Unknown",
"Prims.squash",
"LowParse.Low.Base.Spec.valid_content_pos",
"LowParse.Spec.Sum.synth_dsum_case",
"LowParse.Spec.Enum.Unknown",
"Prims.Nil",
"FStar.Pervasives.pattern"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 8,
"max_fuel": 2,
"max_ifuel": 8,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [
"smt.arith.nl=false"
],
"z3refresh": false,
"z3rlimit": 64,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires
(valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
(let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos))))
(ensures
(let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos (parse_dsum t p f g)
h
input
pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload))) | [] | LowParse.Low.Sum.valid_dsum_intro_unknown | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
h: FStar.Monotonic.HyperStack.mem ->
t: LowParse.Spec.Sum.dsum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.dsum_repr_type t) ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
input: LowParse.Slice.slice rrel rel ->
pos: FStar.UInt32.t
-> FStar.Pervasives.Lemma
(requires
LowParse.Low.Base.Spec.valid (LowParse.Spec.Enum.parse_maybe_enum_key p
(LowParse.Spec.Sum.dsum_enum t))
h
input
pos /\
(let k' =
LowParse.Low.Base.Spec.contents (LowParse.Spec.Enum.parse_maybe_enum_key p
(LowParse.Spec.Sum.dsum_enum t))
h
input
pos
in
Unknown? k' /\
LowParse.Low.Base.Spec.valid g
h
input
(LowParse.Low.Base.Spec.get_valid_pos (LowParse.Spec.Enum.parse_maybe_enum_key p
(LowParse.Spec.Sum.dsum_enum t))
h
input
pos)))
(ensures
(let _ =
LowParse.Low.Base.Spec.contents (LowParse.Spec.Enum.parse_maybe_enum_key p
(LowParse.Spec.Sum.dsum_enum t))
h
input
pos
in
(let LowParse.Spec.Enum.Unknown #_ #_ #_ r = _ in
let pos_payload =
LowParse.Low.Base.Spec.get_valid_pos (LowParse.Spec.Enum.parse_maybe_enum_key p
(LowParse.Spec.Sum.dsum_enum t))
h
input
pos
in
LowParse.Low.Base.Spec.valid_content_pos (LowParse.Spec.Sum.parse_dsum t p f g)
h
input
pos
(LowParse.Spec.Sum.synth_dsum_case t
(LowParse.Spec.Enum.Unknown r)
(LowParse.Low.Base.Spec.contents g h input pos_payload))
(LowParse.Low.Base.Spec.get_valid_pos g h input pos_payload))
<:
Type0)) | {
"end_col": 57,
"end_line": 1164,
"start_col": 2,
"start_line": 1159
} |
Prims.Tot | val validate_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k | val validate_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
let validate_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k)) = | false | null | false | destr _
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.validator",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.dep_enum_destr",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.validate_sum_cases_t",
"LowParse.Low.Sum.validate_sum_cases_t_eq",
"LowParse.Low.Sum.validate_sum_cases_t_if",
"LowParse.Spec.Enum.enum_key",
"Prims.unit",
"LowParse.Low.Sum.validate_sum_cases_aux",
"LowParse.Spec.Sum.weaken_parse_cases_kind",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Sum.parse_sum_cases"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k)) | [] | LowParse.Low.Sum.validate_sum_cases | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
vc:
(x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.validator (FStar.Pervasives.dsnd (pc x))) ->
destr:
LowParse.Spec.Enum.dep_enum_destr (LowParse.Spec.Sum.sum_enum t)
(LowParse.Low.Sum.validate_sum_cases_t t pc) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.validator (LowParse.Spec.Sum.parse_sum_cases t pc k) | {
"end_col": 5,
"end_line": 70,
"start_col": 2,
"start_line": 64
} |
FStar.HyperStack.ST.Stack | val accessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires
(fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_unknown_payload t).clens_cond (contents (parse_dsum t p f g) h input pos)))
(ensures
(fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_unknown_payload t p f g) input pos)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let accessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_unknown_payload t).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_unknown_payload t p f g) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_unknown_payload t p f g) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos | val accessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires
(fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_unknown_payload t).clens_cond (contents (parse_dsum t p f g) h input pos)))
(ensures
(fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_unknown_payload t p f g) input pos))
let accessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires
(fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_unknown_payload t).clens_cond (contents (parse_dsum t p f g) h input pos)))
(ensures
(fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_unknown_payload t p f g) input pos)) = | true | null | false | let h = HST.get () in
[@@ inline_let ]let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_unknown_payload t p f g) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Low.Base.jumper",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"Prims.unit",
"LowParse.Low.Base.Spec.valid_facts",
"LowParse.Spec.Sum.parse_dsum_eq3",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.parse_dsum",
"LowParse.Low.Base.Spec.slice_access_eq",
"LowParse.Low.Sum.clens_dsum_unknown_payload",
"LowParse.Low.Sum.gaccessor_clens_dsum_unknown_payload",
"LowParse.Bytes.bytes",
"LowParse.Slice.bytes_of_slice_from",
"LowParse.Low.Base.Spec.get_valid_pos",
"FStar.Monotonic.HyperStack.mem",
"FStar.HyperStack.ST.get",
"Prims.l_and",
"LowParse.Low.Base.Spec.valid",
"LowParse.Low.Base.Spec.__proj__Mkclens__item__clens_cond",
"LowParse.Low.Base.Spec.contents",
"LowStar.Monotonic.Buffer.modifies",
"LowStar.Monotonic.Buffer.loc_none",
"Prims.eq2",
"LowParse.Low.Base.Spec.slice_access"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
}
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
= gaccessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
inline_for_extraction
let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g))
= accessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
let clens_dsum_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_type s) (dsum_type_of_tag s k))
= {
clens_cond = (fun (x: dsum_type s) -> dsum_tag_of_data s x == k);
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s k x <: Ghost (dsum_type_of_tag s k) (requires (dsum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
let clens_dsum_unknown_payload
(s: dsum)
: Tot (clens (dsum_type s) (dsum_type_of_unknown_tag s))
= {
clens_cond = (fun (x: dsum_type s) -> Unknown? (dsum_tag_of_data s x));
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s (dsum_tag_of_data s x) x <: Ghost (dsum_type_of_unknown_tag s) (requires (Unknown? (dsum_tag_of_data s x))) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) input res } ))
let gaccessor_clens_dsum_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_injective t p f g k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_no_lookahead t p f g k x));
gaccessor_prop_equiv (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) (gaccessor_clens_dsum_payload' t p f g k);
gaccessor_clens_dsum_payload' t p f g k
inline_for_extraction
let accessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_payload t k).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_payload t p f g k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_payload t p f g k) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k))
= fun #rrel #rel -> accessor_clens_dsum_payload' t j f g k #rrel #rel
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor' (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (tg, consumed) ->
let k = maybe_enum_key_of_repr (dsum_enum t) tg in
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) g (clens_dsum_unknown_payload t) input res } ))
let gaccessor_clens_dsum_unknown_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_injective t p f g x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_no_lookahead t p f g x));
gaccessor_prop_equiv (parse_dsum t p f g) g (clens_dsum_unknown_payload t) (gaccessor_clens_dsum_unknown_payload' t p f g);
gaccessor_clens_dsum_unknown_payload' t p f g
inline_for_extraction
let accessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_unknown_payload t).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_unknown_payload t p f g) input pos | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 16,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val accessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires
(fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_unknown_payload t).clens_cond (contents (parse_dsum t p f g) h input pos)))
(ensures
(fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_unknown_payload t p f g) input pos)) | [] | LowParse.Low.Sum.accessor_clens_dsum_unknown_payload' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
j: LowParse.Low.Base.jumper p ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
input: LowParse.Slice.slice rrel rel ->
pos: FStar.UInt32.t
-> FStar.HyperStack.ST.Stack FStar.UInt32.t | {
"end_col": 13,
"end_line": 2064,
"start_col": 1,
"start_line": 2053
} |
Prims.Tot | val validate_sum_aux_payload_if'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k) | [
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos | val validate_sum_aux_payload_if'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
let validate_sum_aux_payload_if'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k) = | false | null | false | fun #rrel #rel input pos ->
if cond
then (ift () <: validate_sum_aux_payload_t t pc k) input pos
else (iff () <: validate_sum_aux_payload_t t pc k) input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.validate_sum_aux_payload_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt64.t"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k))) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_sum_aux_payload_if'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k) | [] | LowParse.Low.Sum.validate_sum_aux_payload_if' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Enum.maybe_enum_key (LowParse.Spec.Sum.sum_enum t) ->
cond: Prims.bool ->
ift:
(_: LowParse.Spec.Combinators.cond_true cond
-> LowParse.Low.Sum.validate_sum_aux_payload_t t pc k) ->
iff:
(_: LowParse.Spec.Combinators.cond_false cond
-> LowParse.Low.Sum.validate_sum_aux_payload_t t pc k)
-> LowParse.Low.Sum.validate_sum_aux_payload_t t pc k | {
"end_col": 59,
"end_line": 116,
"start_col": 2,
"start_line": 111
} |
Prims.Tot | val jump_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k | val jump_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
let jump_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k)) = | false | null | false | destr _
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.jumper",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.dep_enum_destr",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.jump_sum_cases_t",
"LowParse.Low.Sum.jump_sum_cases_t_eq",
"LowParse.Low.Sum.jump_sum_cases_t_if",
"LowParse.Spec.Enum.enum_key",
"Prims.unit",
"LowParse.Low.Sum.jump_sum_cases_aux",
"LowParse.Spec.Sum.weaken_parse_cases_kind",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Sum.parse_sum_cases"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k)) | [] | LowParse.Low.Sum.jump_sum_cases | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
vc: (x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.jumper (FStar.Pervasives.dsnd (pc x))) ->
destr:
LowParse.Spec.Enum.dep_enum_destr (LowParse.Spec.Sum.sum_enum t)
(LowParse.Low.Sum.jump_sum_cases_t t pc) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.jumper (LowParse.Spec.Sum.parse_sum_cases t pc k) | {
"end_col": 5,
"end_line": 333,
"start_col": 2,
"start_line": 327
} |
Prims.Tot | val jump_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos | val jump_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
let jump_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k)) = | false | null | false | fun
cond
(sv_true: (cond_true cond -> Tot (jump_sum_cases_t t pc k)))
(sv_false: (cond_false cond -> Tot (jump_sum_cases_t t pc k)))
#rrel
#rel
input
pos
->
if cond then sv_true () input pos else sv_false () input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.jump_sum_cases_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"LowParse.Spec.Enum.if_combinator",
"LowParse.Low.Sum.jump_sum_cases_t_eq"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k)) | [] | LowParse.Low.Sum.jump_sum_cases_t_if | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Spec.Enum.if_combinator (LowParse.Low.Sum.jump_sum_cases_t t pc k)
(LowParse.Low.Sum.jump_sum_cases_t_eq t pc k) | {
"end_col": 28,
"end_line": 317,
"start_col": 2,
"start_line": 314
} |
Prims.Tot | val gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc) | val gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t)) = | false | null | false | gaccessor_tagged_union_tag (parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Combinators.gaccessor_tagged_union_tag",
"LowParse.Spec.Combinators.parse_filter_kind",
"LowParse.Spec.Enum.enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Spec.Enum.parse_enum_key",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.sum_tag_of_data",
"LowParse.Spec.Sum.weaken_parse_cases_kind",
"LowParse.Spec.Sum.parse_sum_cases",
"LowParse.Low.Base.Spec.gaccessor",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.parse_sum",
"LowParse.Low.Sum.clens_sum_tag"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x)))) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t)) | [] | LowParse.Low.Sum.gaccessor_sum_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.sum_repr_type t) ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x)))
-> LowParse.Low.Base.Spec.gaccessor (LowParse.Spec.Sum.parse_sum t p pc)
(LowParse.Spec.Enum.parse_enum_key p (LowParse.Spec.Sum.sum_enum t))
(LowParse.Low.Sum.clens_sum_tag t) | {
"end_col": 26,
"end_line": 771,
"start_col": 2,
"start_line": 768
} |
Prims.Tot | val jump_sum_aux_payload_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k | val jump_sum_aux_payload_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
let jump_sum_aux_payload_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k)) = | false | null | false | jump_sum_aux_payload_if' t pc k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.jump_sum_aux_payload_if'",
"LowParse.Spec.Enum.if_combinator",
"LowParse.Low.Sum.jump_sum_aux_payload_t",
"LowParse.Low.Sum.jump_sum_aux_payload_eq"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_aux_payload_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k)) | [] | LowParse.Low.Sum.jump_sum_aux_payload_if | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Enum.maybe_enum_key (LowParse.Spec.Sum.sum_enum t)
-> LowParse.Spec.Enum.if_combinator (LowParse.Low.Sum.jump_sum_aux_payload_t t pc k)
(LowParse.Low.Sum.jump_sum_aux_payload_eq t pc k) | {
"end_col": 33,
"end_line": 387,
"start_col": 2,
"start_line": 387
} |
Prims.Tot | val accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel | val accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k)) = | false | null | false | fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Low.Base.jumper",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Low.Sum.accessor_clens_sum_payload'",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"FStar.Monotonic.HyperStack.mem",
"Prims.l_and",
"LowParse.Low.Base.Spec.valid",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.parse_sum",
"LowParse.Low.Base.Spec.__proj__Mkclens__item__clens_cond",
"LowParse.Low.Sum.clens_sum_payload",
"LowParse.Low.Base.Spec.contents",
"LowStar.Monotonic.Buffer.modifies",
"LowStar.Monotonic.Buffer.loc_none",
"Prims.eq2",
"LowParse.Low.Base.Spec.slice_access",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Sum.gaccessor_clens_sum_payload",
"LowParse.Low.Base.accessor"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k)) | [] | LowParse.Low.Sum.accessor_clens_sum_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
j: LowParse.Low.Base.jumper p ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.accessor (LowParse.Low.Sum.gaccessor_clens_sum_payload t p pc k) | {
"end_col": 67,
"end_line": 915,
"start_col": 2,
"start_line": 915
} |
Prims.GTot | val validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2: validate_dsum_cases_t s f g x)
: GTot Type0 | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True | val validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2: validate_dsum_cases_t s f g x)
: GTot Type0
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2: validate_dsum_cases_t s f g x)
: GTot Type0 = | false | null | false | True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Low.Sum.validate_dsum_cases_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2: validate_dsum_cases_t s f g x)
: GTot Type0 | [] | LowParse.Low.Sum.validate_dsum_cases_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
s: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key s
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag s x))) ->
g: LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_unknown_tag s) ->
x: LowParse.Spec.Sum.dsum_key s ->
v1: LowParse.Low.Sum.validate_dsum_cases_t s f g x ->
v2: LowParse.Low.Sum.validate_dsum_cases_t s f g x
-> Prims.GTot Type0 | {
"end_col": 6,
"end_line": 974,
"start_col": 2,
"start_line": 974
} |
Prims.GTot | val jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2: jump_dsum_cases_t s f g x)
: GTot Type0 | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True | val jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2: jump_dsum_cases_t s f g x)
: GTot Type0
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2: jump_dsum_cases_t s f g x)
: GTot Type0 = | false | null | false | True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Low.Sum.jump_dsum_cases_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2: jump_dsum_cases_t s f g x)
: GTot Type0 | [] | LowParse.Low.Sum.jump_dsum_cases_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
s: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key s
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag s x))) ->
g: LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_unknown_tag s) ->
x: LowParse.Spec.Sum.dsum_key s ->
v1: LowParse.Low.Sum.jump_dsum_cases_t s f g x ->
v2: LowParse.Low.Sum.jump_dsum_cases_t s f g x
-> Prims.GTot Type0 | {
"end_col": 6,
"end_line": 1391,
"start_col": 2,
"start_line": 1391
} |
Prims.Tot | val jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(f32: (x: dsum_known_key t -> Tot (jumper (dsnd (f x)))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag | val jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(f32: (x: dsum_known_key t -> Tot (jumper (dsnd (f x)))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(f32: (x: dsum_known_key t -> Tot (jumper (dsnd (f x)))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g)) = | false | null | false | fun #rrel #rel input pos ->
let h = HST.get () in
[@@ inline_let ]let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@@ inline_let ]let _ = valid_facts (parse_dsum t p f g) h input pos in
[@@ inline_let ]let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@@ inline_let ]let _ =
valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg))
h
input
pos_after_tag
in
destr (jump_dsum_cases_eq t f g)
(jump_dsum_cases_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_dsum_cases' t f f32 g32)
tg
input
pos_after_tag | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Low.Base.jumper",
"LowParse.Low.Base.leaf_reader",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Enum.dep_maybe_enum_destr_t",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Low.Sum.jump_dsum_cases_t",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"LowParse.Low.Sum.jump_dsum_cases_eq",
"LowParse.Low.Sum.jump_dsum_cases_if",
"LowParse.Spec.Enum.maybe_enum_key",
"Prims.unit",
"LowParse.Low.Sum.jump_dsum_cases'",
"LowParse.Low.Base.Spec.valid_facts",
"LowParse.Spec.Sum.parse_dsum_cases_kind",
"LowParse.Spec.Enum.maybe_enum_key_of_repr",
"LowParse.Spec.Sum.dsum_cases",
"LowParse.Spec.Sum.parse_dsum_cases'",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.parse_dsum",
"LowParse.Spec.Sum.parse_dsum_eq'",
"LowParse.Slice.bytes_of_slice_from",
"FStar.Monotonic.HyperStack.mem",
"FStar.HyperStack.ST.get"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 16,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(f32: (x: dsum_known_key t -> Tot (jumper (dsnd (f x)))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g)) | [] | LowParse.Low.Sum.jump_dsum | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
v: LowParse.Low.Base.jumper p ->
p32: LowParse.Low.Base.leaf_reader p ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
f32:
(x: LowParse.Spec.Sum.dsum_known_key t
-> LowParse.Low.Base.jumper (FStar.Pervasives.dsnd (f x))) ->
g32: LowParse.Low.Base.jumper g ->
destr:
LowParse.Spec.Enum.dep_maybe_enum_destr_t (LowParse.Spec.Sum.dsum_enum t)
(LowParse.Low.Sum.jump_dsum_cases_t t f g)
-> LowParse.Low.Base.jumper (LowParse.Spec.Sum.parse_dsum t p f g) | {
"end_col": 151,
"end_line": 1508,
"start_col": 2,
"start_line": 1496
} |
Prims.GTot | val read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y: read_dsum_cases_t t f g k)
: GTot Type0 | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True | val read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y: read_dsum_cases_t t f g k)
: GTot Type0
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y: read_dsum_cases_t t f g k)
: GTot Type0 = | false | null | false | True | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"sometrivial"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Low.Sum.read_dsum_cases_t",
"Prims.l_True"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y: read_dsum_cases_t t f g k)
: GTot Type0 | [] | LowParse.Low.Sum.read_dsum_cases_t_eq | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser k' (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
k: LowParse.Spec.Sum.dsum_known_key t ->
x: LowParse.Low.Sum.read_dsum_cases_t t f g k ->
y: LowParse.Low.Sum.read_dsum_cases_t t f g k
-> Prims.GTot Type0 | {
"end_col": 6,
"end_line": 1561,
"start_col": 2,
"start_line": 1561
} |
Prims.Tot | val read_sum_cases'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
() | val read_sum_cases'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
let read_sum_cases'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k)) = | false | null | false | [@@ inline_let ]let _ = synth_sum_case_injective t k in
read_synth' (dsnd (pc k)) (synth_sum_case t k) (pc32 k) () | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.leaf_reader",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Combinators.read_synth'",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Sum.synth_sum_case",
"Prims.unit",
"LowParse.Spec.Sum.synth_sum_case_injective",
"FStar.Pervasives.dfst",
"LowParse.Spec.Sum.parse_sum_cases'"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val read_sum_cases'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k)) | [] | LowParse.Low.Sum.read_sum_cases' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
pc32:
(x: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.leaf_reader (FStar.Pervasives.dsnd (pc x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.leaf_reader (LowParse.Spec.Sum.parse_sum_cases' t pc k) | {
"end_col": 14,
"end_line": 595,
"start_col": 2,
"start_line": 589
} |
Prims.Tot | val jump_sum_aux_payload'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul | val jump_sum_aux_payload'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
let jump_sum_aux_payload'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k) = | false | null | false | fun #rrel #rel input pos ->
match k with
| Known k ->
[@@ inline_let ]let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.jumper",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"LowParse.Spec.Enum.enum_key",
"Prims.unit",
"LowParse.Spec.Sum.synth_sum_case_injective",
"FStar.UInt32.__uint_to_t",
"LowParse.Low.Sum.jump_sum_aux_payload_t"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_aux_payload'
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k) | [] | LowParse.Low.Sum.jump_sum_aux_payload' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
pc32:
(x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.jumper (FStar.Pervasives.dsnd (pc x))) ->
k: LowParse.Spec.Enum.maybe_enum_key (LowParse.Spec.Sum.sum_enum t)
-> LowParse.Low.Sum.jump_sum_aux_payload_t t pc k | {
"end_col": 14,
"end_line": 557,
"start_col": 2,
"start_line": 551
} |
Prims.Tot | val jump_sum_aux_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k | val jump_sum_aux_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
let jump_sum_aux_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)) = | false | null | false | destr (jump_sum_aux_payload_eq t pc)
(jump_sum_aux_payload_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_aux_payload' t pc pc32)
k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.jumper",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.dep_maybe_enum_destr_t",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.jump_sum_aux_payload_t",
"LowParse.Low.Sum.jump_sum_aux_payload_eq",
"LowParse.Low.Sum.jump_sum_aux_payload_if",
"LowParse.Spec.Enum.maybe_enum_key",
"Prims.unit",
"LowParse.Low.Sum.jump_sum_aux_payload'",
"LowParse.Spec.Enum.maybe_enum_key_of_repr"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_sum_aux_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)) | [] | LowParse.Low.Sum.jump_sum_aux_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
pc32:
(x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.jumper (FStar.Pervasives.dsnd (pc x))) ->
destr:
LowParse.Spec.Enum.dep_maybe_enum_destr_t (LowParse.Spec.Sum.sum_enum t)
(LowParse.Low.Sum.jump_sum_aux_payload_t t pc) ->
k: LowParse.Spec.Sum.sum_repr_type t
-> LowParse.Low.Sum.jump_sum_aux_payload_t t
pc
(LowParse.Spec.Enum.maybe_enum_key_of_repr (LowParse.Spec.Sum.sum_enum t) k) | {
"end_col": 141,
"end_line": 567,
"start_col": 2,
"start_line": 567
} |
FStar.HyperStack.ST.Stack | val finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires
(fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\
(let pos_payload = pos `U32.add` (U32.uint_to_t len_tag) in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h)))
(ensures
(fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` (U32.uint_to_t len_tag) in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc)
h'
input
pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload))) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
() | val finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires
(fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\
(let pos_payload = pos `U32.add` (U32.uint_to_t len_tag) in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h)))
(ensures
(fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` (U32.uint_to_t len_tag) in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc)
h'
input
pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)))
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires
(fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\
(let pos_payload = pos `U32.add` (U32.uint_to_t len_tag) in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h)))
(ensures
(fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` (U32.uint_to_t len_tag) in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc)
h'
input
pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload))) = | true | null | false | let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@@ inline_let ]let _ = valid_sum_intro h t p pc input pos in
() | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Base.serializer",
"LowParse.Low.Base.leaf_writer_strong",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Enum.enum_repr_of_key'_t",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"Prims.unit",
"LowParse.Low.Sum.valid_sum_intro",
"FStar.Monotonic.HyperStack.mem",
"FStar.HyperStack.ST.get",
"LowParse.Low.Enum.write_enum_key",
"Prims.l_and",
"Prims.b2t",
"Prims.op_LessThan",
"Prims.op_Addition",
"FStar.UInt32.v",
"LowParse.Low.Base.Spec.valid",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Base.writable",
"LowParse.Slice.buffer_srel_of_srel",
"LowParse.Slice.__proj__Mkslice__item__base",
"FStar.UInt32.add",
"FStar.UInt32.uint_to_t",
"Prims.nat",
"LowParse.Low.Base.Spec.serialized_length",
"LowParse.Spec.Combinators.parse_filter_kind",
"LowParse.Spec.Enum.enum_key",
"LowParse.Spec.Enum.parse_enum_key",
"LowParse.Spec.Enum.serialize_enum_key",
"LowStar.Monotonic.Buffer.modifies",
"LowParse.Slice.loc_slice_from_to",
"LowParse.Low.Base.Spec.valid_content_pos",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.parse_sum",
"LowParse.Spec.Sum.synth_sum_case",
"LowParse.Low.Base.Spec.contents",
"LowParse.Low.Base.Spec.get_valid_pos"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires
(fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\
(let pos_payload = pos `U32.add` (U32.uint_to_t len_tag) in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h)))
(ensures
(fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` (U32.uint_to_t len_tag) in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc)
h'
input
pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload))) | [] | LowParse.Low.Sum.finalize_sum_case | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
s: LowParse.Spec.Base.serializer p ->
w: LowParse.Low.Base.leaf_writer_strong s ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
destr: LowParse.Spec.Enum.enum_repr_of_key'_t (LowParse.Spec.Sum.sum_enum t) ->
k: LowParse.Spec.Sum.sum_key t ->
input: LowParse.Slice.slice rrel rel ->
pos: FStar.UInt32.t
-> FStar.HyperStack.ST.Stack Prims.unit | {
"end_col": 4,
"end_line": 272,
"start_col": 1,
"start_line": 268
} |
Prims.Tot | val read_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos) | val read_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
let read_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k)) = | false | null | false | fun
cond
(sv_true: (cond_true cond -> Tot (read_sum_cases_t t pc k)))
(sv_false: (cond_false cond -> Tot (read_sum_cases_t t pc k)))
#_
#_
input
pos
->
if cond then (sv_true () input pos) else (sv_false () input pos) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.read_sum_cases_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Enum.if_combinator",
"LowParse.Low.Sum.read_sum_cases_t_eq"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val read_sum_cases_t_if
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k)) | [] | LowParse.Low.Sum.read_sum_cases_t_if | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Spec.Enum.if_combinator (LowParse.Low.Sum.read_sum_cases_t t pc k)
(LowParse.Low.Sum.read_sum_cases_t_eq t pc k) | {
"end_col": 30,
"end_line": 622,
"start_col": 2,
"start_line": 619
} |
Prims.Tot | val clens_dsum_tag (s: dsum) : Tot (clens (dsum_type s) (dsum_key s)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
} | val clens_dsum_tag (s: dsum) : Tot (clens (dsum_type s) (dsum_key s))
let clens_dsum_tag (s: dsum) : Tot (clens (dsum_type s) (dsum_key s)) = | false | null | false | { clens_cond = (fun _ -> True); clens_get = dsum_tag_of_data s } | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Low.Base.Spec.Mkclens",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.dsum_key",
"Prims.l_True",
"LowParse.Spec.Sum.dsum_tag_of_data",
"LowParse.Low.Base.Spec.clens"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val clens_dsum_tag (s: dsum) : Tot (clens (dsum_type s) (dsum_key s)) | [] | LowParse.Low.Sum.clens_dsum_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} | s: LowParse.Spec.Sum.dsum
-> LowParse.Low.Base.Spec.clens (LowParse.Spec.Sum.dsum_type s) (LowParse.Spec.Sum.dsum_key s) | {
"end_col": 35,
"end_line": 1770,
"start_col": 4,
"start_line": 1769
} |
Prims.Tot | val gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
= gaccessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g) | val gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t)) = | false | null | false | gaccessor_tagged_union_tag (parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Low.Combinators.gaccessor_tagged_union_tag",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Spec.Enum.parse_maybe_enum_key",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.dsum_tag_of_data",
"LowParse.Spec.Sum.weaken_parse_dsum_cases_kind",
"LowParse.Spec.Sum.parse_dsum_cases",
"LowParse.Low.Base.Spec.gaccessor",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.parse_dsum",
"LowParse.Low.Sum.clens_dsum_tag"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
}
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t)) | [] | LowParse.Low.Sum.gaccessor_dsum_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.dsum_repr_type t) ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t)
-> LowParse.Low.Base.Spec.gaccessor (LowParse.Spec.Sum.parse_dsum t p f g)
(LowParse.Spec.Enum.parse_maybe_enum_key p (LowParse.Spec.Sum.dsum_enum t))
(LowParse.Low.Sum.clens_dsum_tag t) | {
"end_col": 28,
"end_line": 1784,
"start_col": 2,
"start_line": 1781
} |
Prims.Tot | val accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g))
= accessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g) | val accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g))
let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g)) = | false | null | false | accessor_tagged_union_tag (parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Low.Combinators.accessor_tagged_union_tag",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Spec.Enum.parse_maybe_enum_key",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.dsum_tag_of_data",
"LowParse.Spec.Sum.weaken_parse_dsum_cases_kind",
"LowParse.Spec.Sum.parse_dsum_cases",
"LowParse.Low.Base.accessor",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.parse_dsum",
"LowParse.Low.Sum.clens_dsum_tag",
"LowParse.Low.Sum.gaccessor_dsum_tag"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
}
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
= gaccessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
inline_for_extraction
let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g)) | [] | LowParse.Low.Sum.accessor_dsum_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.dsum_repr_type t) ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t)
-> LowParse.Low.Base.accessor (LowParse.Low.Sum.gaccessor_dsum_tag t p f g) | {
"end_col": 28,
"end_line": 1798,
"start_col": 2,
"start_line": 1795
} |
Prims.Tot | val read_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k | val read_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
let read_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k)) = | false | null | false | destr _ (read_sum_cases_t_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (read_sum_cases' t pc pc32) k | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.leaf_reader",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Enum.dep_enum_destr",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Low.Sum.read_sum_cases_t",
"LowParse.Low.Sum.read_sum_cases_t_eq",
"LowParse.Low.Sum.read_sum_cases_t_if",
"LowParse.Spec.Enum.enum_key",
"Prims.unit",
"LowParse.Low.Sum.read_sum_cases'",
"FStar.Pervasives.dfst",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Sum.parse_sum_cases'"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val read_sum_cases
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: (x: sum_key t -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k)) | [] | LowParse.Low.Sum.read_sum_cases | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
pc32:
(x: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.leaf_reader (FStar.Pervasives.dsnd (pc x))) ->
destr:
LowParse.Spec.Enum.dep_enum_destr (LowParse.Spec.Sum.sum_enum t)
(LowParse.Low.Sum.read_sum_cases_t t pc) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.leaf_reader (LowParse.Spec.Sum.parse_sum_cases' t pc k) | {
"end_col": 5,
"end_line": 638,
"start_col": 2,
"start_line": 632
} |
FStar.Pervasives.Lemma | val valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires
(valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))))
(ensures
(valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
(let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
(let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos (parse_dsum t p f g)
h
input
pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload))))) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload | val valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires
(valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))))
(ensures
(valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
(let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
(let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos (parse_dsum t p f g)
h
input
pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)))))
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires
(valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))))
(ensures
(valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
(let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
(let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos (parse_dsum t p f g)
h
input
pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload))))) = | false | null | true | valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"lemma"
] | [
"FStar.Monotonic.HyperStack.mem",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"LowParse.Spec.Enum.unknown_enum_repr",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Low.Base.Spec.valid_facts",
"LowParse.Low.Base.Spec.get_valid_pos",
"LowParse.Spec.Enum.maybe_enum_key",
"LowParse.Spec.Enum.parse_maybe_enum_key",
"Prims.unit",
"LowParse.Low.Base.Spec.contents",
"LowParse.Spec.Sum.parse_dsum_eq",
"LowParse.Slice.bytes_of_slice_from",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.parse_dsum",
"Prims.l_and",
"LowParse.Low.Base.Spec.valid",
"Prims.b2t",
"LowParse.Spec.Enum.uu___is_Unknown",
"LowParse.Spec.Sum.dsum_tag_of_data",
"Prims.squash",
"LowParse.Low.Base.Spec.valid_content_pos",
"LowParse.Spec.Sum.synth_dsum_case",
"LowParse.Spec.Enum.Unknown",
"Prims.logical",
"Prims.Nil",
"FStar.Pervasives.pattern"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
)))) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires
(valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))))
(ensures
(valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
(let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
(let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos (parse_dsum t p f g)
h
input
pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload))))) | [] | LowParse.Low.Sum.valid_dsum_elim_unknown | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
h: FStar.Monotonic.HyperStack.mem ->
t: LowParse.Spec.Sum.dsum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.dsum_repr_type t) ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
input: LowParse.Slice.slice rrel rel ->
pos: FStar.UInt32.t
-> FStar.Pervasives.Lemma
(requires
LowParse.Low.Base.Spec.valid (LowParse.Spec.Sum.parse_dsum t p f g) h input pos /\
Unknown? (LowParse.Spec.Sum.dsum_tag_of_data t
(LowParse.Low.Base.Spec.contents (LowParse.Spec.Sum.parse_dsum t p f g) h input pos)))
(ensures
LowParse.Low.Base.Spec.valid (LowParse.Spec.Enum.parse_maybe_enum_key p
(LowParse.Spec.Sum.dsum_enum t))
h
input
pos /\
(let k' =
LowParse.Low.Base.Spec.contents (LowParse.Spec.Enum.parse_maybe_enum_key p
(LowParse.Spec.Sum.dsum_enum t))
h
input
pos
in
let pos_payload =
LowParse.Low.Base.Spec.get_valid_pos (LowParse.Spec.Enum.parse_maybe_enum_key p
(LowParse.Spec.Sum.dsum_enum t))
h
input
pos
in
Unknown? k' /\
(let _ =
LowParse.Low.Base.Spec.contents (LowParse.Spec.Enum.parse_maybe_enum_key p
(LowParse.Spec.Sum.dsum_enum t))
h
input
pos
in
(let LowParse.Spec.Enum.Unknown #_ #_ #_ r = _ in
LowParse.Low.Base.Spec.valid g h input pos_payload /\
LowParse.Low.Base.Spec.valid_content_pos (LowParse.Spec.Sum.parse_dsum t p f g)
h
input
pos
(LowParse.Spec.Sum.synth_dsum_case t
(LowParse.Spec.Enum.Unknown r)
(LowParse.Low.Base.Spec.contents g h input pos_payload))
(LowParse.Low.Base.Spec.get_valid_pos g h input pos_payload))
<:
Prims.logical))) | {
"end_col": 35,
"end_line": 1371,
"start_col": 2,
"start_line": 1366
} |
Prims.Tot | val serialize32_sum_cases_t_if
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos) | val serialize32_sum_cases_t_if
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
let serialize32_sum_cases_t_if
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k)) = | false | null | false | fun
cond
(sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k)))
(sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k)))
x
#rrel
#rel
b
pos
->
if cond then (sv_true () x b pos) else (sv_false () x b pos) | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Base.serializer",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.serialize32_sum_cases_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Spec.Sum.sum_cases",
"LowStar.Monotonic.Buffer.srel",
"LowParse.Bytes.byte",
"LowStar.Monotonic.Buffer.mbuffer",
"FStar.UInt32.t",
"LowParse.Spec.Enum.if_combinator",
"LowParse.Low.Sum.serialize32_sum_cases_t_eq"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val serialize32_sum_cases_t_if
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k)) | [] | LowParse.Low.Sum.serialize32_sum_cases_t_if | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
sc:
(x: LowParse.Spec.Sum.sum_key t
-> LowParse.Spec.Base.serializer (FStar.Pervasives.dsnd (pc x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Spec.Enum.if_combinator (LowParse.Low.Sum.serialize32_sum_cases_t t sc k)
(LowParse.Low.Sum.serialize32_sum_cases_t_eq t sc k) | {
"end_col": 28,
"end_line": 694,
"start_col": 2,
"start_line": 691
} |
Prims.Tot | val accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k))
= fun #rrel #rel -> accessor_clens_dsum_payload' t j f g k #rrel #rel | val accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k))
let accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k)) = | false | null | false | fun #rrel #rel -> accessor_clens_dsum_payload' t j f g k #rrel #rel | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Low.Base.jumper",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Low.Sum.accessor_clens_dsum_payload'",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"FStar.Monotonic.HyperStack.mem",
"Prims.l_and",
"LowParse.Low.Base.Spec.valid",
"LowParse.Spec.Sum.parse_dsum_kind",
"LowParse.Spec.Sum.dsum_type",
"LowParse.Spec.Sum.parse_dsum",
"LowParse.Low.Base.Spec.__proj__Mkclens__item__clens_cond",
"LowParse.Spec.Sum.dsum_type_of_tag",
"LowParse.Low.Sum.clens_dsum_payload",
"LowParse.Low.Base.Spec.contents",
"LowStar.Monotonic.Buffer.modifies",
"LowStar.Monotonic.Buffer.loc_none",
"Prims.eq2",
"LowParse.Low.Base.Spec.slice_access",
"LowParse.Spec.Sum.parse_dsum_cases_kind",
"LowParse.Spec.Sum.parse_dsum_type_of_tag'",
"LowParse.Low.Sum.gaccessor_clens_dsum_payload",
"LowParse.Low.Base.accessor"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
}
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
= gaccessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
inline_for_extraction
let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g))
= accessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
let clens_dsum_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_type s) (dsum_type_of_tag s k))
= {
clens_cond = (fun (x: dsum_type s) -> dsum_tag_of_data s x == k);
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s k x <: Ghost (dsum_type_of_tag s k) (requires (dsum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
let clens_dsum_unknown_payload
(s: dsum)
: Tot (clens (dsum_type s) (dsum_type_of_unknown_tag s))
= {
clens_cond = (fun (x: dsum_type s) -> Unknown? (dsum_tag_of_data s x));
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s (dsum_tag_of_data s x) x <: Ghost (dsum_type_of_unknown_tag s) (requires (Unknown? (dsum_tag_of_data s x))) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) input res } ))
let gaccessor_clens_dsum_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_injective t p f g k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_no_lookahead t p f g k x));
gaccessor_prop_equiv (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) (gaccessor_clens_dsum_payload' t p f g k);
gaccessor_clens_dsum_payload' t p f g k
inline_for_extraction
let accessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_payload t k).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_payload t p f g k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_payload t p f g k) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k)) | [] | LowParse.Low.Sum.accessor_clens_dsum_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.dsum ->
j: LowParse.Low.Base.jumper p ->
f:
(x: LowParse.Spec.Sum.dsum_known_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag t x))) ->
g: LowParse.Spec.Base.parser ku (LowParse.Spec.Sum.dsum_type_of_unknown_tag t) ->
k: LowParse.Spec.Sum.dsum_key t
-> LowParse.Low.Base.accessor (LowParse.Low.Sum.gaccessor_clens_dsum_payload t p f g k) | {
"end_col": 69,
"end_line": 1951,
"start_col": 2,
"start_line": 1951
} |
Prims.Tot | val serialize32_sum_cases_aux
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(sc32: (x: sum_key t -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos | val serialize32_sum_cases_aux
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(sc32: (x: sum_key t -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
let serialize32_sum_cases_aux
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(sc32: (x: sum_key t -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k)) = | false | null | false | fun x #rrel #rel b pos ->
[@@ inline_let ]let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth (sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Spec.Base.serializer",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Low.Base.serializer32",
"LowParse.Spec.Sum.sum_cases",
"LowStar.Monotonic.Buffer.srel",
"LowParse.Bytes.byte",
"LowStar.Monotonic.Buffer.mbuffer",
"FStar.UInt32.t",
"LowParse.Low.Combinators.serialize32_synth",
"LowParse.Spec.Sum.synth_sum_case",
"LowParse.Spec.Sum.synth_sum_case_recip",
"Prims.eq2",
"Prims.unit",
"LowParse.Spec.Sum.synth_sum_case_inverse",
"LowParse.Spec.Sum.synth_sum_case_injective",
"FStar.Classical.forall_intro",
"LowParse.Bytes.bytes",
"FStar.Pervasives.Native.option",
"FStar.Pervasives.Native.tuple2",
"LowParse.Spec.Base.consumed_length",
"LowParse.Spec.Base.parse",
"LowParse.Spec.Sum.parse_sum_cases",
"LowParse.Spec.Sum.parse_sum_cases'",
"LowParse.Spec.Sum.parse_sum_cases_eq'",
"LowParse.Spec.Sum.weaken_parse_cases_kind",
"LowParse.Spec.Sum.serialize_sum_cases"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val serialize32_sum_cases_aux
(t: sum)
(#pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: (x: sum_key t -> Tot (serializer (dsnd (pc x)))))
(sc32: (x: sum_key t -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k)) | [] | LowParse.Low.Sum.serialize32_sum_cases_aux | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
sc:
(x: LowParse.Spec.Sum.sum_key t
-> LowParse.Spec.Base.serializer (FStar.Pervasives.dsnd (pc x))) ->
sc32: (x: LowParse.Spec.Sum.sum_key t -> LowParse.Low.Base.serializer32 (sc x)) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.serializer32 (LowParse.Spec.Sum.serialize_sum_cases t pc sc k) | {
"end_col": 7,
"end_line": 718,
"start_col": 2,
"start_line": 704
} |
FStar.Pervasives.Lemma | val valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma (requires (valid (parse_sum t p pc) h input pos))
(ensures
(valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos ==
sum_tag_of_data t (contents (parse_sum t p pc) h input pos))) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
() | val valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma (requires (valid (parse_sum t p pc) h input pos))
(ensures
(valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos ==
sum_tag_of_data t (contents (parse_sum t p pc) h input pos)))
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma (requires (valid (parse_sum t p pc) h input pos))
(ensures
(valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos ==
sum_tag_of_data t (contents (parse_sum t p pc) h input pos))) = | false | null | true | let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
() | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"lemma"
] | [
"FStar.Monotonic.HyperStack.mem",
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_repr_type",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t",
"Prims.unit",
"LowParse.Low.Base.Spec.valid_facts",
"LowParse.Spec.Combinators.parse_filter_kind",
"LowParse.Spec.Enum.enum_key",
"LowParse.Spec.Sum.sum_key_type",
"LowParse.Spec.Sum.sum_enum",
"LowParse.Spec.Enum.parse_enum_key",
"LowParse.Spec.Sum.parse_sum_kind",
"LowParse.Spec.Sum.sum_type",
"LowParse.Spec.Sum.parse_sum",
"LowParse.Spec.Sum.parse_sum_eq'",
"LowParse.Slice.bytes_of_slice_from",
"LowParse.Low.Base.Spec.valid",
"Prims.squash",
"Prims.l_and",
"Prims.eq2",
"LowParse.Low.Base.Spec.contents",
"LowParse.Spec.Sum.sum_tag_of_data",
"Prims.Nil",
"FStar.Pervasives.pattern"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma (requires (valid (parse_sum t p pc) h input pos))
(ensures
(valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos ==
sum_tag_of_data t (contents (parse_sum t p pc) h input pos))) | [] | LowParse.Low.Sum.valid_sum_elim_tag | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
h: FStar.Monotonic.HyperStack.mem ->
t: LowParse.Spec.Sum.sum ->
p: LowParse.Spec.Base.parser kt (LowParse.Spec.Sum.sum_repr_type t) ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
input: LowParse.Slice.slice rrel rel ->
pos: FStar.UInt32.t
-> FStar.Pervasives.Lemma
(requires LowParse.Low.Base.Spec.valid (LowParse.Spec.Sum.parse_sum t p pc) h input pos)
(ensures
LowParse.Low.Base.Spec.valid (LowParse.Spec.Enum.parse_enum_key p
(LowParse.Spec.Sum.sum_enum t))
h
input
pos /\
LowParse.Low.Base.Spec.contents (LowParse.Spec.Enum.parse_enum_key p
(LowParse.Spec.Sum.sum_enum t))
h
input
pos ==
LowParse.Spec.Sum.sum_tag_of_data t
(LowParse.Low.Base.Spec.contents (LowParse.Spec.Sum.parse_sum t p pc) h input pos)) | {
"end_col": 4,
"end_line": 501,
"start_col": 1,
"start_line": 498
} |
Prims.Tot | val accessor_clens_sum_cases_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
() | val accessor_clens_sum_cases_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
let accessor_clens_sum_cases_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k)) = | false | null | false | [@@ inline_let ]let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k)
(synth_sum_case_recip t k)
()
in
accessor_ext (accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
() | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.sum",
"LowParse.Spec.Sum.sum_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.sum_type_of_tag",
"LowParse.Low.Base.accessor_ext",
"Prims.__proj__Mkdtuple2__item___1",
"LowParse.Spec.Sum.sum_cases",
"LowParse.Spec.Combinators.parse_synth",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Sum.synth_sum_case",
"LowParse.Low.Combinators.clens_synth",
"LowParse.Spec.Sum.synth_sum_case_recip",
"LowParse.Low.Combinators.gaccessor_synth",
"LowParse.Low.Combinators.accessor_synth",
"LowParse.Low.Sum.clens_sum_cases_payload",
"Prims.squash",
"LowParse.Spec.Combinators.synth_inverse",
"LowParse.Spec.Combinators.synth_injective_synth_inverse_synth_inverse_recip",
"Prims.unit",
"LowParse.Spec.Sum.synth_sum_case_inverse",
"LowParse.Spec.Sum.synth_sum_case_injective",
"LowParse.Low.Base.accessor",
"FStar.Pervasives.dfst",
"LowParse.Spec.Sum.parse_sum_cases'",
"LowParse.Low.Sum.gaccessor_clens_sum_cases_payload"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val accessor_clens_sum_cases_payload
(t: sum)
(pc: (x: sum_key t -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k)) | [] | LowParse.Low.Sum.accessor_clens_sum_cases_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
t: LowParse.Spec.Sum.sum ->
pc:
(x: LowParse.Spec.Sum.sum_key t
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.sum_type_of_tag t x))) ->
k: LowParse.Spec.Sum.sum_key t
-> LowParse.Low.Base.accessor (LowParse.Low.Sum.gaccessor_clens_sum_cases_payload t pc k) | {
"end_col": 6,
"end_line": 954,
"start_col": 2,
"start_line": 945
} |
Prims.Tot | val clens_dsum_cases_payload (s: dsum) (k: dsum_key s)
: Tot (clens (dsum_cases s k) (dsum_type_of_tag s k)) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let clens_dsum_cases_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_cases s k) (dsum_type_of_tag s k))
= {
clens_cond = (fun (x: dsum_cases s k) -> True);
clens_get = (fun (x: dsum_cases s k) -> synth_dsum_case_recip s k x <: Ghost (dsum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
} | val clens_dsum_cases_payload (s: dsum) (k: dsum_key s)
: Tot (clens (dsum_cases s k) (dsum_type_of_tag s k))
let clens_dsum_cases_payload (s: dsum) (k: dsum_key s)
: Tot (clens (dsum_cases s k) (dsum_type_of_tag s k)) = | false | null | false | {
clens_cond = (fun (x: dsum_cases s k) -> True);
clens_get
=
(fun (x: dsum_cases s k) ->
synth_dsum_case_recip s k x
<:
Ghost (dsum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)))
} | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Low.Base.Spec.Mkclens",
"LowParse.Spec.Sum.dsum_cases",
"LowParse.Spec.Sum.dsum_type_of_tag",
"Prims.l_True",
"LowParse.Spec.Sum.synth_dsum_case_recip",
"LowParse.Low.Base.Spec.clens"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len
inline_for_extraction
let jump_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (jump_dsum_cases_eq s f g x))
= jump_dsum_cases_if' s f g x
inline_for_extraction
let jump_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= synth_dsum_case_injective s x;
match x with
| Known x' -> jump_synth (f' x') (synth_dsum_case s (Known x')) () <: jumper (parse_dsum_cases' s f g x)
| Unknown x' -> jump_synth g' (synth_dsum_case s (Unknown x')) () <: jumper (parse_dsum_cases' s f g x)
inline_for_extraction
let jump_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> jump_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> jump_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> jump_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let jump_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (jumper (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : jumper g)
(destr: dep_enum_destr _ (fun k -> jump_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (jumper (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input pos;
valid_facts (parse_dsum_cases s f g x) h input pos;
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input pos)
in
jump_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let jump_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (jumper (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: jumper g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (jump_dsum_cases_t t f g))
: Tot (jumper (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input pos) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input pos in
[@inline_let]
let _ = valid_facts p h input pos in
let pos_after_tag = v input pos in
let tg = p32 input pos in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input pos_after_tag in
destr (jump_dsum_cases_eq t f g) (jump_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
inline_for_extraction
let read_dsum_cases'
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #rrel #rel input pos ->
[@inline_let]
let _ = synth_dsum_case_injective t x in
match x with
| Known x' ->
read_synth'
(dsnd (f x'))
(synth_dsum_case t (Known x'))
(f32 x')
()
input
pos
| Unknown x' ->
read_synth'
g
(synth_dsum_case t (Unknown x'))
g32
()
input
pos
inline_for_extraction
let read_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot Type
= leaf_reader (parse_dsum_cases' t f g (Known k))
let read_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
(x y : read_dsum_cases_t t f g k)
: GTot Type0
= True
inline_for_extraction
let read_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(k: dsum_known_key t)
: Tot (if_combinator _ (read_dsum_cases_t_eq t f g k))
= fun cond (sv_true: cond_true cond -> Tot (read_dsum_cases_t t f g k)) (sv_false: cond_false cond -> Tot (read_dsum_cases_t t f g k)) #_ #_ input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let read_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
(x: dsum_key t)
: Tot (leaf_reader (parse_dsum_cases' t f g x))
= fun #_ #_ input pos ->
match x with
| Known k ->
destr
_
(read_dsum_cases_t_if t f g)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> read_dsum_cases' t f f32 g g32 (Known k))
k
input
pos
| Unknown r ->
read_dsum_cases' t f f32 g g32 (Unknown r) input pos
#push-options "--z3rlimit 16"
inline_for_extraction
let read_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader (parse_maybe_enum_key p (dsum_enum t)))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (leaf_reader (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: leaf_reader g)
(destr: dep_enum_destr _ (read_dsum_cases_t t f g))
: Tot (leaf_reader (parse_dsum t p f g))
= fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_maybe_enum_key j (dsum_enum t) input pos in
valid_facts (parse_dsum_cases' t f g k) h input pos' ;
read_dsum_cases t f f32 g g32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_dsum_type_of_tag
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_type_of_tag t f sf g sg tg))
= match tg with
| Known x' -> serialize32_ext (dsnd (f x')) (sf x') (sf32 x') (parse_dsum_type_of_tag t f g tg) ()
| Unknown x' -> serialize32_ext g sg sg32 (parse_dsum_type_of_tag t f g tg) ()
inline_for_extraction
let serialize32_dsum_cases_aux
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= [@inline_let]
let _ = synth_dsum_case_injective t tg in
[@inline_let]
let _ = synth_dsum_case_inverse t tg in
serialize32_synth
(serialize32_dsum_type_of_tag t f sf sf32 sg32 tg)
(synth_dsum_case t tg)
(synth_dsum_case_recip t tg)
(fun x -> synth_dsum_case_recip t tg x)
()
inline_for_extraction
let serialize32_dsum_cases_t
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot Type
= serializer32 (serialize_dsum_cases t f sf g sg (Known k))
let serialize32_dsum_cases_t_eq
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
(x y: serialize32_dsum_cases_t t f sf g sg k)
: GTot Type0
= True
inline_for_extraction
let serialize32_dsum_cases_t_if
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(#k': parser_kind)
(g: parser k' (dsum_type_of_unknown_tag t))
(sg: serializer g)
(k: dsum_known_key t)
: Tot (if_combinator _ (serialize32_dsum_cases_t_eq t f sf g sg k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) (sv_false: (cond_false cond -> Tot (serialize32_dsum_cases_t t f sf g sg k))) x #rrel #rel output pos ->
if cond
then (sv_true () x output pos)
else (sv_false () x output pos)
inline_for_extraction
let serialize32_dsum_cases
(t: dsum)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
(tg: dsum_key t)
: Tot (serializer32 (serialize_dsum_cases t f sf g sg tg))
= fun x #rrel #rel output pos ->
match tg with
| Known k ->
destr
_
(serialize32_dsum_cases_t_if t f sf g sg)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> serialize32_dsum_cases_aux t f sf sf32 sg32 (Known k))
k
x
output
pos
| Unknown r ->
serialize32_dsum_cases_aux t f sf sf32 sg32 (Unknown r) x output pos
inline_for_extraction
let serialize32_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_maybe_enum_key _ s (dsum_enum t)))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(sf: (x: dsum_known_key t) -> Tot (serializer (dsnd (f x))))
(sf32: (x: dsum_known_key t) -> Tot (serializer32 (sf x)))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(#sg: serializer g)
(sg32: serializer32 sg)
(destr: dep_enum_destr _ (serialize32_dsum_cases_t t f sf g sg))
: Tot (serializer32 (serialize_dsum t s f sf g sg))
= fun x #_ #_ output pos ->
[@inline_let]
let _ = serialize_dsum_eq' t s f sf g sg x in
let tg = dsum_tag_of_data t x in
serialize32_nondep_then_aux
s32
(serialize32_dsum_cases t f sf sf32 sg32 destr tg)
tg
x
output
pos
let clens_dsum_tag
(s: dsum)
: Tot (clens (dsum_type s) (dsum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = dsum_tag_of_data s;
}
let gaccessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) (parse_maybe_enum_key p (dsum_enum t)) (clens_dsum_tag t))
= gaccessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
inline_for_extraction
let accessor_dsum_tag
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_dsum_tag t p f g))
= accessor_tagged_union_tag
(parse_maybe_enum_key p (dsum_enum t))
(dsum_tag_of_data t)
(parse_dsum_cases t f g)
let clens_dsum_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_type s) (dsum_type_of_tag s k))
= {
clens_cond = (fun (x: dsum_type s) -> dsum_tag_of_data s x == k);
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s k x <: Ghost (dsum_type_of_tag s k) (requires (dsum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
let clens_dsum_unknown_payload
(s: dsum)
: Tot (clens (dsum_type s) (dsum_type_of_unknown_tag s))
= {
clens_cond = (fun (x: dsum_type s) -> Unknown? (dsum_tag_of_data s x));
clens_get = (fun (x: dsum_type s) -> synth_dsum_case_recip s (dsum_tag_of_data s x) x <: Ghost (dsum_type_of_unknown_tag s) (requires (Unknown? (dsum_tag_of_data s x))) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) input res } ))
let gaccessor_clens_dsum_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl /\
gaccessor_pre (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (
gaccessor_clens_dsum_payload' t p f g k sl == gaccessor_clens_dsum_payload' t p f g k sl'
))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (gaccessor (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_injective t p f g k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_payload_no_lookahead t p f g k x));
gaccessor_prop_equiv (parse_dsum t p f g) (parse_dsum_type_of_tag' t f g k) (clens_dsum_payload t k) (gaccessor_clens_dsum_payload' t p f g k);
gaccessor_clens_dsum_payload' t p f g k
inline_for_extraction
let accessor_clens_dsum_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_payload t k).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_payload t p f g k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_payload t p f g k) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_dsum_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(k: dsum_key t)
: Tot (accessor (gaccessor_clens_dsum_payload t p f g k))
= fun #rrel #rel -> accessor_clens_dsum_payload' t j f g k #rrel #rel
#push-options "--z3rlimit 16"
let gaccessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor' (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= fun (input: bytes) ->
parse_dsum_eq3 t p f g input;
let res =
match parse p input with
| Some (tg, consumed) ->
let k = maybe_enum_key_of_repr (dsum_enum t) tg in
synth_dsum_case_inverse t k;
synth_dsum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_dsum_case t k) (synth_dsum_case_recip t k) ();
(consumed)
| _ -> (0) // dummy
in
(res <: (res: _ { gaccessor_post' (parse_dsum t p f g) g (clens_dsum_unknown_payload t) input res } ))
let gaccessor_clens_dsum_unknown_payload_injective
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
injective_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
= parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_injective (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload_no_lookahead
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(sl sl' : bytes)
: Lemma
(requires (
(parse_dsum_kind kt t f ku).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl /\
gaccessor_pre (parse_dsum t p f g) g (clens_dsum_unknown_payload t) sl' /\
no_lookahead_on_precond (parse_dsum t p f g) sl sl'
))
(ensures (gaccessor_clens_dsum_unknown_payload' t p f g sl == gaccessor_clens_dsum_unknown_payload' t p f g sl'))
=
parse_dsum_eq3 t p f g sl;
parse_dsum_eq3 t p f g sl';
parse_strong_prefix (parse_dsum t p f g) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(p: parser kt (dsum_repr_type t))
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (gaccessor (parse_dsum t p f g) g (clens_dsum_unknown_payload t))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_injective t p f g x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_dsum_unknown_payload_no_lookahead t p f g x));
gaccessor_prop_equiv (parse_dsum t p f g) g (clens_dsum_unknown_payload t) (gaccessor_clens_dsum_unknown_payload' t p f g);
gaccessor_clens_dsum_unknown_payload' t p f g
inline_for_extraction
let accessor_clens_dsum_unknown_payload'
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_dsum t p f g) h input pos /\
(clens_dsum_unknown_payload t).clens_cond (contents (parse_dsum t p f g) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_dsum_unknown_payload t p f g) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_dsum t p f g) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_dsum_unknown_payload t p f g) input pos;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq3 t p f g large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_dsum_unknown_payload
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(j: jumper p { kt.parser_kind_subkind == Some ParserStrong })
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
: Tot (accessor (gaccessor_clens_dsum_unknown_payload t p f g))
= fun #rrel #rel -> accessor_clens_dsum_unknown_payload' t j f g #rrel #rel
let clens_dsum_cases_payload
(s: dsum)
(k: dsum_key s)
: Tot (clens (dsum_cases s k) (dsum_type_of_tag s k)) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val clens_dsum_cases_payload (s: dsum) (k: dsum_key s)
: Tot (clens (dsum_cases s k) (dsum_type_of_tag s k)) | [] | LowParse.Low.Sum.clens_dsum_cases_payload | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} | s: LowParse.Spec.Sum.dsum -> k: LowParse.Spec.Sum.dsum_key s
-> LowParse.Low.Base.Spec.clens (LowParse.Spec.Sum.dsum_cases s k)
(LowParse.Spec.Sum.dsum_type_of_tag s k) | {
"end_col": 149,
"end_line": 2086,
"start_col": 4,
"start_line": 2085
} |
Prims.Tot | val validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos | val validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x) = | false | null | false | fun #rrel #rel input pos ->
match x with
| Known k ->
destr _
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Low.Base.validator",
"Prims.__proj__Mkdtuple2__item___1",
"FStar.Pervasives.dsnd",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Enum.dep_enum_destr",
"LowParse.Spec.Sum.dsum_key_type",
"LowParse.Spec.Sum.dsum_repr_type",
"LowParse.Spec.Sum.dsum_enum",
"LowParse.Spec.Enum.enum_key",
"LowParse.Low.Sum.validate_dsum_cases_t",
"LowParse.Spec.Enum.Known",
"LowParse.Spec.Sum.dsum_key",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt64.t",
"LowParse.Low.Sum.validate_dsum_cases_eq",
"LowParse.Low.Sum.validate_dsum_cases_if",
"LowParse.Spec.Enum.if_combinator",
"Prims.unit",
"LowParse.Low.Sum.validate_dsum_cases'",
"LowParse.Spec.Enum.unknown_enum_repr",
"LowParse.Spec.Enum.Unknown"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(f': (x: dsum_known_key s -> Tot (validator (dsnd (f x)))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g': validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x) | [] | LowParse.Low.Sum.validate_dsum_cases'_destr | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
s: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key s
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag s x))) ->
f':
(x: LowParse.Spec.Sum.dsum_known_key s
-> LowParse.Low.Base.validator (FStar.Pervasives.dsnd (f x))) ->
g': LowParse.Low.Base.validator g ->
destr:
LowParse.Spec.Enum.dep_enum_destr (LowParse.Spec.Sum.dsum_enum s)
(fun k -> LowParse.Low.Sum.validate_dsum_cases_t s f g (LowParse.Spec.Enum.Known k)) ->
x: LowParse.Spec.Sum.dsum_key s
-> LowParse.Low.Sum.validate_dsum_cases_t s f g x | {
"end_col": 69,
"end_line": 1041,
"start_col": 2,
"start_line": 1029
} |
Prims.Tot | val jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x) | [
{
"abbrev": true,
"full_module": "FStar.HyperStack",
"short_module": "HS"
},
{
"abbrev": true,
"full_module": "FStar.UInt64",
"short_module": "U64"
},
{
"abbrev": true,
"full_module": "FStar.Int.Cast",
"short_module": "Cast"
},
{
"abbrev": true,
"full_module": "LowStar.Buffer",
"short_module": "B"
},
{
"abbrev": true,
"full_module": "FStar.HyperStack.ST",
"short_module": "HST"
},
{
"abbrev": true,
"full_module": "FStar.UInt32",
"short_module": "U32"
},
{
"abbrev": false,
"full_module": "LowParse.Spec.Sum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low.Enum",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "LowParse.Low",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar.Pervasives",
"short_module": null
},
{
"abbrev": false,
"full_module": "Prims",
"short_module": null
},
{
"abbrev": false,
"full_module": "FStar",
"short_module": null
}
] | false | let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len | val jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x)
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x) = | false | null | false | fun #rrel #rel input len ->
if cond
then (ift () <: jump_dsum_cases_t s f g x) input len
else (iff () <: jump_dsum_cases_t s f g x) input len | {
"checked_file": "LowParse.Low.Sum.fst.checked",
"dependencies": [
"prims.fst.checked",
"LowStar.Buffer.fst.checked",
"LowParse.Spec.Sum.fst.checked",
"LowParse.Low.Enum.fst.checked",
"FStar.UInt64.fsti.checked",
"FStar.UInt32.fsti.checked",
"FStar.Seq.fst.checked",
"FStar.Pervasives.Native.fst.checked",
"FStar.Pervasives.fsti.checked",
"FStar.Int.Cast.fst.checked",
"FStar.HyperStack.ST.fsti.checked",
"FStar.HyperStack.fst.checked",
"FStar.Classical.fsti.checked"
],
"interface_file": false,
"source_file": "LowParse.Low.Sum.fst"
} | [
"total"
] | [
"LowParse.Spec.Sum.dsum",
"LowParse.Spec.Sum.dsum_known_key",
"Prims.dtuple2",
"LowParse.Spec.Base.parser_kind",
"LowParse.Spec.Base.parser",
"LowParse.Spec.Sum.dsum_type_of_known_tag",
"LowParse.Spec.Sum.dsum_type_of_unknown_tag",
"LowParse.Spec.Sum.dsum_key",
"Prims.bool",
"LowParse.Spec.Combinators.cond_true",
"LowParse.Low.Sum.jump_dsum_cases_t",
"LowParse.Spec.Combinators.cond_false",
"LowParse.Slice.srel",
"LowParse.Bytes.byte",
"LowParse.Slice.slice",
"FStar.UInt32.t"
] | [] | module LowParse.Low.Sum
include LowParse.Low.Enum
include LowParse.Spec.Sum
module U32 = FStar.UInt32
module HST = FStar.HyperStack.ST
module B = LowStar.Buffer
module Cast = FStar.Int.Cast
module U64 = FStar.UInt64
inline_for_extraction
let validate_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
validate_synth
(validate_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let validate_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= validator (parse_sum_cases t pc k)
let validate_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : validate_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let validate_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (validate_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (validate_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (validate_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let validate_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (validate_sum_cases_t t pc))
(k: sum_key t)
: Tot (validator (parse_sum_cases t pc k))
= destr
_
(validate_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(validate_sum_cases_aux t pc vc)
k
inline_for_extraction
let validate_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U64.t) ->
HST.Stack U64.t
(requires (fun h -> live_slice h input /\ U64.v pos <= U32.v input.len))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> is_error res
| Known k' ->
if is_success res
then
valid_pos (dsnd (pc k')) h input (uint64_to_uint32 pos) (uint64_to_uint32 res)
else
(~ (valid (dsnd (pc k')) h input (uint64_to_uint32 pos)))
)))
let validate_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k -> validate_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let validate_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (validate_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (validate_sum_aux_payload_t t pc k)))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: validate_sum_aux_payload_t t pc k) input pos
end else
(iff () <: validate_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let validate_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (validate_sum_aux_payload_eq t pc k))
= validate_sum_aux_payload_if' t pc k
#push-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --using_facts_from '* -FStar.Int.Cast -LowParse.BitFields'"
// --query_stats --smtencoding.elim_box true --smtencoding.l_arith_repr native --z3refresh"
inline_for_extraction
let validate_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (validator (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_sum_eq'' t p pc (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let len_after_tag = v input pos in
if is_error len_after_tag
then len_after_tag
else begin
let h1 = HST.get () in
let k' = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ =
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input (uint64_to_uint32 len_after_tag)
| _ -> ()
in
v_payload k' input len_after_tag
end
#pop-options
inline_for_extraction
let validate_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (validate_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
// validate_synth (pc32 k) (synth_sum_case t k) () input pos
| _ -> validator_error_generic
inline_for_extraction
let validate_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (validate_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (validate_sum_aux_payload_eq t pc) (validate_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_sum_aux_payload' t pc pc32) k
inline_for_extraction
let validate_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (validator (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (validate_sum_aux_payload_t t pc))
: Tot (validator (parse_sum t p pc))
= validate_sum_aux t v p32 pc (validate_sum_aux_payload t pc pc32 destr)
module HS = FStar.HyperStack
#push-options "--z3rlimit 256 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
#restart-solver
let valid_sum_intro
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_enum_key p (sum_enum t)) h input pos /\ (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
valid (dsnd (pc k)) h input (get_valid_pos (parse_enum_key p (sum_enum t)) h input pos)
)))
(ensures (
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_content_pos
(parse_sum t p pc) h input pos
(synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload))
(get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = contents (parse_enum_key p (sum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_enum_key p (sum_enum t)) h input pos in
valid_facts (dsnd (pc k)) h input pos_payload;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq t p pc (bytes_of_slice_from h input pos)
#pop-options
inline_for_extraction
let finalize_sum_case
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(destr: enum_repr_of_key'_t (sum_enum t))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (pc k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (sum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_sum t p pc) h' input pos (synth_sum_case t k (contents (dsnd (pc k)) h input pos_payload)) (get_valid_pos (dsnd (pc k)) h input pos_payload)
))
= let pos1 = write_enum_key w (sum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ = valid_sum_intro h t p pc input pos in
()
inline_for_extraction
let jump_sum_cases_aux
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
jump_synth
(jump_weaken
(weaken_parse_cases_kind t pc)
(vc k)
()
)
(synth_sum_case t k)
()
inline_for_extraction
let jump_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= jumper (parse_sum_cases t pc k)
let jump_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : jump_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let jump_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (jump_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (jump_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (jump_sum_cases_t t pc k)) #rrel #rel input pos ->
if cond
then sv_true () input pos
else sv_false () input pos
inline_for_extraction
let jump_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(vc: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (jump_sum_cases_t t pc))
(k: sum_key t)
: Tot (jumper (parse_sum_cases t pc k))
= destr
_
(jump_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(jump_sum_cases_aux t pc vc)
k
inline_for_extraction
let jump_sum_aux_payload_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot Type
= (#rrel: _) -> (#rel: _) ->
(input: slice rrel rel) ->
(pos: U32.t) ->
HST.Stack U32.t
(requires (fun h -> live_slice h input /\ U32.v pos <= U32.v input.len /\ (
match k with
| Unknown _ -> False
| Known k' -> valid (dsnd (pc k')) h input pos
)))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\ (
match k with
| Unknown _ -> False
| Known k' ->
valid_pos (dsnd (pc k')) h input pos res
)))
let jump_sum_aux_payload_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k -> jump_sum_aux_payload_t t pc k -> GTot Type0)
= fun _ _ -> True
inline_for_extraction
let jump_sum_aux_payload_if'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
(cond: bool)
(ift: ((cond_true cond) -> Tot (jump_sum_aux_payload_t t pc k)))
(iff: ((cond_false cond) -> Tot (jump_sum_aux_payload_t t pc k)))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
if cond
then begin
(ift () <: jump_sum_aux_payload_t t pc k) input pos
end else
(iff () <: jump_sum_aux_payload_t t pc k) input pos
inline_for_extraction
let jump_sum_aux_payload_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: maybe_enum_key (sum_enum t))
: Tot (if_combinator _ (jump_sum_aux_payload_eq t pc k))
= jump_sum_aux_payload_if' t pc k
let parse_sum_eq3
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k)))
(ensures (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k)
| _ -> False
end
))
= parse_sum_eq'' t p pc input
let parse_sum_eq4
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(input: bytes)
(k' : sum_repr_type t)
(consumed_k: consumed_length input)
(consumed_payload: nat)
: Lemma
(requires (Some? (parse (parse_sum t p pc) input) /\ parse p input == Some (k', consumed_k) /\ (
let input_k = Seq.slice input consumed_k (Seq.length input) in
let k = maybe_enum_key_of_repr (sum_enum t) k' in
begin match k with
| Known k ->
Some? (parse (dsnd (pc k)) input_k) /\ (
let Some (_, consumed_payload') = parse (dsnd (pc k)) input_k in
consumed_payload' == consumed_payload
)
| _ -> False
end
)))
(ensures (
let Some (_, consumed) = parse (parse_sum t p pc) input in
consumed == consumed_k + consumed_payload
))
= parse_sum_eq'' t p pc input
#push-options "--z3rlimit 16"
let valid_sum_elim
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel: _) (#rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid p h input pos /\ (
let pos_payload = get_valid_pos p h input pos in
let k' = maybe_enum_key_of_repr (sum_enum t) (contents p h input pos) in
match k' with
| Known k ->
k == sum_tag_of_data t (contents (parse_sum t p pc) h input pos) /\
valid (dsnd (pc k)) h input pos_payload /\
valid_pos
(parse_sum t p pc) h input pos
(get_valid_pos (dsnd (pc k)) h input pos_payload)
| _ -> False
)))
= let sinput = bytes_of_slice_from h input pos in
let _ = parse_sum_eq'' t p pc sinput in
[@inline_let]
let _ = valid_facts (parse_sum t p pc) h input pos in
let Some (k', consumed_k) = parse p sinput in
let pos_after_tag = U32.uint_to_t (U32.v pos + consumed_k) in
[@inline_let]
let _ = valid_facts p h input pos in
assert (valid_content_pos p h input pos k' pos_after_tag);
match maybe_enum_key_of_repr (sum_enum t) k' with
| Known k -> valid_facts (dsnd (pc k)) h input pos_after_tag
| _ -> ()
#pop-options
let valid_sum_elim_tag
(h: HS.mem)
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_sum t p pc) h input pos
))
(ensures (
valid (parse_enum_key p (sum_enum t)) h input pos /\
contents (parse_enum_key p (sum_enum t)) h input pos == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let _ = parse_sum_eq' t p pc (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_sum t p pc) h input pos in
let _ = valid_facts (parse_enum_key p (sum_enum t)) h input pos in
()
inline_for_extraction
let read_sum_tag
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(p32: leaf_reader p)
(destr: dep_maybe_enum_destr_t (sum_enum t) (read_enum_key_t (sum_enum t)))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (sum_key t)
(requires (fun h ->
valid (parse_sum t p pc) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == sum_tag_of_data t (contents (parse_sum t p pc) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_sum_elim_tag h t p pc input pos in
read_enum_key p32 (sum_enum t) destr input pos
inline_for_extraction
let jump_sum_aux
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(v_payload: ((k: sum_repr_type t)) -> Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k)))
: Tot (jumper (parse_sum t p pc))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = valid_sum_elim h t p pc input pos in
let pos_after_tag = v input pos in
let k' = p32 input pos in
v_payload k' input pos_after_tag
inline_for_extraction
let jump_sum_aux_payload'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(k: maybe_enum_key (sum_enum t))
: Tot (jump_sum_aux_payload_t t pc k)
= fun #rrel #rel input pos ->
match k with
| Known k ->
[@inline_let]
let _ = synth_sum_case_injective t k in
pc32 k input pos
| _ -> 0ul // dummy, but we MUST NOT remove this branch, otherwise extraction fails
inline_for_extraction
let jump_sum_aux_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
(k: sum_repr_type t)
: Tot (jump_sum_aux_payload_t t pc (maybe_enum_key_of_repr (sum_enum t) k))
= destr (jump_sum_aux_payload_eq t pc) (jump_sum_aux_payload_if t pc) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (jump_sum_aux_payload' t pc pc32) k
inline_for_extraction
let jump_sum
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(v: jumper p)
(p32: leaf_reader p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (jumper (dsnd (pc x)))))
(destr: dep_maybe_enum_destr_t (sum_enum t) (jump_sum_aux_payload_t t pc))
: Tot (jumper (parse_sum t p pc))
= jump_sum_aux t v p32 pc (jump_sum_aux_payload t pc pc32 destr)
inline_for_extraction
let read_sum_cases'
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= [@inline_let]
let _ = synth_sum_case_injective t k in
read_synth'
(dsnd (pc k))
(synth_sum_case t k)
(pc32 k)
()
inline_for_extraction
let read_sum_cases_t
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot Type
= leaf_reader (parse_sum_cases' t pc k)
let read_sum_cases_t_eq
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(x y : read_sum_cases_t t pc k)
: GTot Type0
= True
inline_for_extraction
let read_sum_cases_t_if
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (if_combinator _ (read_sum_cases_t_eq t pc k))
= fun cond (sv_true: cond_true cond -> Tot (read_sum_cases_t t pc k)) (sv_false: cond_false cond -> Tot (read_sum_cases_t t pc k)) #_ #_ input pos ->
if cond
then (sv_true () input pos)
else (sv_false () input pos)
inline_for_extraction
let read_sum_cases
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
(k: sum_key t)
: Tot (leaf_reader (parse_sum_cases' t pc k))
= destr
_
(read_sum_cases_t_if t pc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(read_sum_cases' t pc pc32)
k
#push-options "--z3rlimit 32"
inline_for_extraction
let read_sum
(#kt: parser_kind)
(t: sum)
(p: parser kt (sum_repr_type t))
(p32: leaf_reader (parse_enum_key p (sum_enum t)))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(pc32: ((x: sum_key t) -> Tot (leaf_reader (dsnd (pc x)))))
(destr: dep_enum_destr (sum_enum t) (read_sum_cases_t t pc))
: Tot (leaf_reader (parse_sum t p pc))
=
fun #_ #_ input pos ->
let h = HST.get () in
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq' t p pc (bytes_of_slice_from h input pos);
valid_facts (parse_enum_key p (sum_enum t)) h input pos;
let k = p32 input pos in
let pos' = jump_enum_key j (sum_enum t) input pos in
valid_facts (parse_sum_cases' t pc k) h input pos' ;
read_sum_cases t pc pc32 destr k input pos'
#pop-options
inline_for_extraction
let serialize32_sum_cases_t
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot Type
= serializer32 (serialize_sum_cases t pc sc k)
let serialize32_sum_cases_t_eq
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
(x y: serialize32_sum_cases_t t sc k)
: GTot Type0
= True
inline_for_extraction
let serialize32_sum_cases_t_if
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(k: sum_key t)
: Tot (if_combinator _ (serialize32_sum_cases_t_eq t sc k))
= fun cond (sv_true: (cond_true cond -> Tot (serialize32_sum_cases_t t sc k))) (sv_false: (cond_false cond -> Tot (serialize32_sum_cases_t t sc k))) x #rrel #rel b pos ->
if cond
then (sv_true () x b pos)
else (sv_false () x b pos)
inline_for_extraction
let serialize32_sum_cases_aux
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= fun x #rrel #rel b pos ->
[@inline_let] let _ =
Classical.forall_intro (parse_sum_cases_eq' t pc k);
synth_sum_case_injective t k;
synth_sum_case_inverse t k
in
serialize32_synth
(sc32 k)
(synth_sum_case t k)
(synth_sum_case_recip t k)
(fun x -> synth_sum_case_recip t k x)
()
x
b
pos
inline_for_extraction
let serialize32_sum_cases
(t: sum)
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
(k: sum_key t)
: Tot (serializer32 (serialize_sum_cases t pc sc k))
= destr
_
(serialize32_sum_cases_t_if t sc)
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(serialize32_sum_cases_aux t sc sc32)
k
inline_for_extraction
let serialize32_sum
(#kt: parser_kind)
(t: sum)
(#p: parser kt (sum_repr_type t))
(s: serializer p {kt.parser_kind_subkind == Some ParserStrong})
(s32: serializer32 (serialize_enum_key _ s (sum_enum t)))
(#pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(sc: ((x: sum_key t) -> Tot (serializer (dsnd (pc x)))))
(sc32: ((x: sum_key t) -> Tot (serializer32 (sc x))))
(destr: dep_enum_destr (sum_enum t) (serialize32_sum_cases_t t sc))
: Tot (serializer32 (serialize_sum t s sc))
= fun x #rrel #rel b pos ->
serialize_sum_eq t s sc x;
let tg = sum_tag_of_data t x in
serialize32_nondep_then_aux s32 (serialize32_sum_cases t sc sc32 destr tg) tg x b pos
let clens_sum_tag
(s: sum)
: Tot (clens (sum_type s) (sum_key s))
= {
clens_cond = (fun _ -> True);
clens_get = sum_tag_of_data s;
}
let gaccessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (gaccessor (parse_sum t p pc) (parse_enum_key p (sum_enum t)) (clens_sum_tag t))
= gaccessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
inline_for_extraction
let accessor_sum_tag
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
: Tot (accessor (gaccessor_sum_tag t p pc))
= accessor_tagged_union_tag
(parse_enum_key p (sum_enum t))
(sum_tag_of_data t)
(parse_sum_cases t pc)
let clens_sum_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_type s) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_type s) -> sum_tag_of_data s x == k);
clens_get = (fun (x: sum_type s) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (sum_tag_of_data s x == k)) (ensures (fun _ -> True)));
}
#push-options "--z3rlimit 32"
let gaccessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= fun (input: bytes) ->
parse_sum_eq'' t p pc input;
let res =
match parse p input with
| Some (_, consumed) ->
synth_sum_case_inverse t k;
synth_sum_case_injective t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
(consumed)
| _ -> 0 // dummy
in
(res <: (res: _ { gaccessor_post' (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) input res } ))
#push-options "--z3rlimit 64"
let gaccessor_clens_sum_payload_injective
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
injective_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_injective (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
#pop-options
let gaccessor_clens_sum_payload_no_lookahead
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(sl sl' : bytes)
: Lemma
(requires (
(parse_sum_kind kt t pc).parser_kind_subkind == Some ParserStrong /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl /\
gaccessor_pre (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) sl' /\
no_lookahead_on_precond (parse_sum t p pc) sl sl'
))
(ensures (gaccessor_clens_sum_payload' t p pc k sl == gaccessor_clens_sum_payload' t p pc k sl'))
= parse_sum_eq'' t p pc sl;
parse_sum_eq'' t p pc sl' ;
parse_strong_prefix (parse_sum t p pc) sl sl' ;
parse_injective p sl sl'
let gaccessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(p: parser kt (sum_repr_type t))
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k))
= Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_injective t p pc k x));
Classical.forall_intro_2 (fun x -> Classical.move_requires (gaccessor_clens_sum_payload_no_lookahead t p pc k x));
gaccessor_prop_equiv (parse_sum t p pc) (dsnd (pc k)) (clens_sum_payload t k) (gaccessor_clens_sum_payload' t p pc k);
gaccessor_clens_sum_payload' t p pc k
inline_for_extraction
let accessor_clens_sum_payload'
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack U32.t
(requires (fun h ->
valid (parse_sum t p pc) h input pos /\
(clens_sum_payload t k).clens_cond (contents (parse_sum t p pc) h input pos)
))
(ensures (fun h pos' h' ->
B.modifies B.loc_none h h' /\
pos' == slice_access h (gaccessor_clens_sum_payload t p pc k) input pos
))
=
let h = HST.get () in
[@inline_let]
let _ =
let pos' = get_valid_pos (parse_sum t p pc) h input pos in
let large = bytes_of_slice_from h input pos in
slice_access_eq h (gaccessor_clens_sum_payload t p pc k) input pos;
valid_facts (parse_sum t p pc) h input pos;
parse_sum_eq'' t p pc large;
valid_facts p h input pos
in
j input pos
#pop-options
inline_for_extraction
let accessor_clens_sum_payload
(t: sum)
(#kt: parser_kind)
(#p: parser kt (sum_repr_type t))
(j: jumper p)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_payload t p pc k))
= fun #rrel #rel -> accessor_clens_sum_payload' t j pc k #rrel #rel
let clens_sum_cases_payload
(s: sum)
(k: sum_key s)
: Tot (clens (sum_cases s k) (sum_type_of_tag s k))
= {
clens_cond = (fun (x: sum_cases s k) -> True);
clens_get = (fun (x: sum_cases s k) -> synth_sum_case_recip s k x <: Ghost (sum_type_of_tag s k) (requires (True)) (ensures (fun _ -> True)));
}
let gaccessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (gaccessor (parse_sum_cases' t pc k) (dsnd (pc k)) (clens_sum_cases_payload t k))
= synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ();
gaccessor_ext
(gaccessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let accessor_clens_sum_cases_payload
(t: sum)
(pc: ((x: sum_key t) -> Tot (k: parser_kind & parser k (sum_type_of_tag t x))))
(k: sum_key t)
: Tot (accessor (gaccessor_clens_sum_cases_payload t pc k))
= [@inline_let]
let _ =
synth_sum_case_injective t k;
synth_sum_case_inverse t k;
synth_injective_synth_inverse_synth_inverse_recip (synth_sum_case t k) (synth_sum_case_recip t k) ()
in
accessor_ext
(accessor_synth (dsnd (pc k)) (synth_sum_case t k) (synth_sum_case_recip t k) ())
(clens_sum_cases_payload t k)
()
inline_for_extraction
let validate_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= validator (parse_dsum_cases' s f g x)
let validate_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : validate_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let validate_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (validate_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (validate_dsum_cases_t s f g x)))
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input len ->
if cond
then (ift () <: validate_dsum_cases_t s f g x) input len
else (iff () <: validate_dsum_cases_t s f g x) input len
inline_for_extraction
let validate_dsum_cases_if
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot (if_combinator _ (validate_dsum_cases_eq s f g x))
= validate_dsum_cases_if' s f g x
inline_for_extraction
let validate_dsum_cases'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= [@inline_let]
let _ = synth_dsum_case_injective s x in
match x with
| Known x' -> validate_synth (f' x') (synth_dsum_case s (Known x')) () <: validator (parse_dsum_cases' s f g x)
| Unknown x' -> validate_synth g' (synth_dsum_case s (Unknown x')) () <: validator (parse_dsum_cases' s f g x)
inline_for_extraction
let validate_dsum_cases'_destr
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validate_dsum_cases_t s f g x)
= fun #rrel #rel input pos ->
match x with
| Known k ->
destr
_
(fun k -> validate_dsum_cases_if s f g (Known k))
(fun _ _ -> ())
(fun _ _ _ _ -> ())
(fun k -> validate_dsum_cases' s f f' g' (Known k))
k
input
pos
| Unknown r -> validate_dsum_cases' s f f' g' (Unknown r) input pos
inline_for_extraction
let validate_dsum_cases
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(f' : (x: dsum_known_key s) -> Tot (validator (dsnd (f x))))
(#k: parser_kind)
(#g: parser k (dsum_type_of_unknown_tag s))
(g' : validator g)
(destr: dep_enum_destr _ (fun k -> validate_dsum_cases_t s f g (Known k)))
(x: dsum_key s)
: Tot (validator (parse_dsum_cases s f g x))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_dsum_cases' s f g x) h input (uint64_to_uint32 pos);
valid_facts (parse_dsum_cases s f g x) h input (uint64_to_uint32 pos);
parse_dsum_cases_eq' s f g x (bytes_of_slice_from h input (uint64_to_uint32 pos))
in
validate_dsum_cases'_destr s f f' g' destr x input pos
#push-options "--z3rlimit 40"
inline_for_extraction
let validate_dsum
(#kt: parser_kind)
(t: dsum)
(#p: parser kt (dsum_repr_type t))
(v: validator p)
(p32: leaf_reader p)
(f: (x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x)))
(f32: (x: dsum_known_key t) -> Tot (validator (dsnd (f x))))
(#k': parser_kind)
(#g: parser k' (dsum_type_of_unknown_tag t))
(g32: validator g)
(destr: dep_maybe_enum_destr_t (dsum_enum t) (validate_dsum_cases_t t f g))
: Tot (validator (parse_dsum t p f g))
= fun #rrel #rel input pos ->
let h = HST.get () in
[@inline_let]
let _ = parse_dsum_eq' t p f g (bytes_of_slice_from h input (uint64_to_uint32 pos)) in
[@inline_let]
let _ = valid_facts (parse_dsum t p f g) h input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts p h input (uint64_to_uint32 pos) in
let pos_after_tag = v input pos in
if is_error pos_after_tag
then pos_after_tag
else
let tg = p32 input (uint64_to_uint32 pos) in
[@inline_let]
let _ = valid_facts (parse_dsum_cases' t f g (maybe_enum_key_of_repr (dsum_enum t) tg)) h input (uint64_to_uint32 pos_after_tag) in
destr (validate_dsum_cases_eq t f g) (validate_dsum_cases_if t f g) (fun _ _ -> ()) (fun _ _ _ _ -> ()) (validate_dsum_cases' t f f32 g32) tg input pos_after_tag
#pop-options
#reset-options "--z3rlimit 64 --z3cliopt smt.arith.nl=false --initial_ifuel 8 --max_ifuel 8 --initial_fuel 2 --max_fuel 2"
let valid_dsum_intro_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
))))
(ensures (
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
let valid_dsum_intro_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\
valid g h input (get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos)
)))
(ensures (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))
= valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload;
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos)
#reset-options
inline_for_extraction
let finalize_dsum_case_known
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(destr: enum_repr_of_key'_t (dsum_enum t))
(k: dsum_known_key t)
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid (dsnd (f k)) h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length (serialize_enum_key _ s (dsum_enum t)) k in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload)) (get_valid_pos (dsnd (f k)) h input pos_payload)
))
= let pos1 = write_enum_key w (dsum_enum t) destr k input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_enum_key p (dsum_enum t)) h input pos;
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let sq = bytes_of_slice_from h input pos in
parse_enum_key_eq p (dsum_enum t) sq;
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_known h t p f g input pos
in
()
inline_for_extraction
let finalize_dsum_case_unknown
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(s: serializer p)
(w: leaf_writer_strong s)
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(r: unknown_enum_repr (dsum_enum t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack unit
(requires (fun h ->
let len_tag = serialized_length s r in
U32.v pos + len_tag < 4294967296 /\ (
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
valid g h input pos_payload /\
writable input.base (U32.v pos) (U32.v pos_payload) h
)))
(ensures (fun h _ h' ->
let len_tag = serialized_length s r in
let pos_payload = pos `U32.add` U32.uint_to_t len_tag in
B.modifies (loc_slice_from_to input pos pos_payload) h h' /\
valid_content_pos (parse_dsum t p f g) h' input pos (synth_dsum_case t (Unknown r) (contents g h input pos_payload)) (get_valid_pos g h input pos_payload)
))
= let pos1 = w r input pos in
let h = HST.get () in
[@inline_let]
let _ =
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
valid_facts p h input pos;
let sq = bytes_of_slice_from h input pos in
parse_maybe_enum_key_eq p (dsum_enum t) sq;
valid_dsum_intro_unknown h t p f g input pos
in
()
let valid_dsum_elim_tag
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\
contents (parse_maybe_enum_key p (dsum_enum t)) h input pos == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let _ = parse_dsum_eq_ t p f g (bytes_of_slice_from h input pos) in
let _ = valid_facts (parse_dsum t p f g) h input pos in
let _ = valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos in
()
inline_for_extraction
let read_dsum_tag
(t: dsum)
(#kt: parser_kind)
(#p: parser kt (dsum_repr_type t))
(p32: leaf_reader p)
(destr: maybe_enum_destr_t (maybe_enum_key (dsum_enum t)) (dsum_enum t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: HST.Stack (dsum_key t)
(requires (fun h ->
valid (parse_dsum t p f g) h input pos
))
(ensures (fun h res h' ->
B.modifies B.loc_none h h' /\
res == dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos)
))
= let h = HST.get () in
[@inline_let] let _ = valid_dsum_elim_tag h t p f g input pos in
read_maybe_enum_key p32 (dsum_enum t) destr input pos
#push-options "--z3rlimit 32"
let valid_dsum_elim_known
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Known? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Known? k' /\ (
let Known k = k' in
valid (dsnd (f k)) h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Known k) (contents (dsnd (f k)) h input pos_payload))
(get_valid_pos (dsnd (f k)) h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Known k = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts (dsnd (f k)) h input pos_payload
#pop-options
let valid_dsum_elim_unknown
(h: HS.mem)
(t: dsum)
(#kt: parser_kind)
(p: parser kt (dsum_repr_type t))
(f: ((x: dsum_known_key t) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag t x))))
(#ku: parser_kind)
(g: parser ku (dsum_type_of_unknown_tag t))
(#rrel #rel: _)
(input: slice rrel rel)
(pos: U32.t)
: Lemma
(requires (
valid (parse_dsum t p f g) h input pos /\
Unknown? (dsum_tag_of_data t (contents (parse_dsum t p f g) h input pos))
))
(ensures (
valid (parse_maybe_enum_key p (dsum_enum t)) h input pos /\ (
let k' = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
Unknown? k' /\ (
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid g h input pos_payload /\
valid_content_pos
(parse_dsum t p f g) h input pos
(synth_dsum_case t (Unknown r) (contents g h input pos_payload))
(get_valid_pos g h input pos_payload)
))))
=
valid_facts (parse_dsum t p f g) h input pos;
parse_dsum_eq t p f g (bytes_of_slice_from h input pos);
valid_facts (parse_maybe_enum_key p (dsum_enum t)) h input pos;
let Unknown r = contents (parse_maybe_enum_key p (dsum_enum t)) h input pos in
let pos_payload = get_valid_pos (parse_maybe_enum_key p (dsum_enum t)) h input pos in
valid_facts g h input pos_payload
inline_for_extraction
let jump_dsum_cases_t
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
: Tot Type
= jumper (parse_dsum_cases' s f g x)
let jump_dsum_cases_eq
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(v1 v2 : jump_dsum_cases_t s f g x)
: GTot Type0
= True
inline_for_extraction
let jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s) -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x)))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x))) | false | false | LowParse.Low.Sum.fst | {
"detail_errors": false,
"detail_hint_replay": false,
"initial_fuel": 2,
"initial_ifuel": 1,
"max_fuel": 8,
"max_ifuel": 2,
"no_plugins": false,
"no_smt": false,
"no_tactics": false,
"quake_hi": 1,
"quake_keep": false,
"quake_lo": 1,
"retry": false,
"reuse_hint_for": null,
"smtencoding_elim_box": false,
"smtencoding_l_arith_repr": "boxwrap",
"smtencoding_nl_arith_repr": "boxwrap",
"smtencoding_valid_elim": false,
"smtencoding_valid_intro": true,
"tcnorm": true,
"trivial_pre_for_unannotated_effectful_fns": true,
"z3cliopt": [],
"z3refresh": false,
"z3rlimit": 5,
"z3rlimit_factor": 1,
"z3seed": 0,
"z3smtopt": [],
"z3version": "4.8.5"
} | null | val jump_dsum_cases_if'
(s: dsum)
(f: (x: dsum_known_key s -> Tot (k: parser_kind & parser k (dsum_type_of_known_tag s x))))
(#k: parser_kind)
(g: parser k (dsum_type_of_unknown_tag s))
(x: dsum_key s)
(cond: bool)
(ift: (cond_true cond -> Tot (jump_dsum_cases_t s f g x)))
(iff: (cond_false cond -> Tot (jump_dsum_cases_t s f g x)))
: Tot (jump_dsum_cases_t s f g x) | [] | LowParse.Low.Sum.jump_dsum_cases_if' | {
"file_name": "src/lowparse/LowParse.Low.Sum.fst",
"git_rev": "446a08ce38df905547cf20f28c43776b22b8087a",
"git_url": "https://github.com/project-everest/everparse.git",
"project_name": "everparse"
} |
s: LowParse.Spec.Sum.dsum ->
f:
(x: LowParse.Spec.Sum.dsum_known_key s
-> Prims.dtuple2 LowParse.Spec.Base.parser_kind
(fun k -> LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_known_tag s x))) ->
g: LowParse.Spec.Base.parser k (LowParse.Spec.Sum.dsum_type_of_unknown_tag s) ->
x: LowParse.Spec.Sum.dsum_key s ->
cond: Prims.bool ->
ift: (_: LowParse.Spec.Combinators.cond_true cond -> LowParse.Low.Sum.jump_dsum_cases_t s f g x) ->
iff:
(_: LowParse.Spec.Combinators.cond_false cond -> LowParse.Low.Sum.jump_dsum_cases_t s f g x)
-> LowParse.Low.Sum.jump_dsum_cases_t s f g x | {
"end_col": 54,
"end_line": 1407,
"start_col": 2,
"start_line": 1404
} |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.