AllenGeng/ocamlgithub · Datasets at Hugging Face

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let license = " \ notice , this list of conditions and the following disclaimer . notice , this list of conditions and the following disclaimer in the documentation and / or other materials provided with the distribution . derived from this software without specific prior written permission . "
let polycat write_one streaming in_file out_file = let ic , fname = match in_file with \| ` File s -> open_in s , s in let oc = match out_file with \| ` File s -> open_out s in let finally ( ) = if oc != stdout then close_out_noerr oc ; if ic != stdin then close_in_noerr ic in try if streaming then Stream . iter ( write_one oc ) ( Yojson . Safe . stream_from_channel ~ fname ic ) else write_one oc ( Yojson . Safe . from_channel ~ fname ic ) ; finally ( ) ; true with e -> finally ( ) ; eprintf " Error :\ n " ; ( match e with \| e -> ) ; false
let cat sort output_biniou std compact streaming in_file out_file = if not output_biniou then let write_one oc x = let x = if sort then Yojson . Safe . sort x else x in if compact then else output_char oc ' \ n ' in polycat write_one streaming in_file out_file else let write_one oc x = output_string oc ( Bi_io . string_of_tree ( Yojson_biniou . biniou_of_json x ) ) in polycat write_one streaming in_file out_file
let parse_cmdline ( ) = let out = ref None in let std = ref false in let compact = ref false in let streaming = ref true in let sort = ref false in let output_biniou = ref false in let options = [ " - o " , Arg . String ( fun s -> out := Some s ) , " < file > Output file " ; " - std " , Arg . Set std , " Convert tuples and variants into standard JSON , refuse to print NaN and infinities , require the root node to be either an object or an array . " ; " - c " , Arg . Set compact , " Compact output ( default : pretty - printed ) " ; " - s " , Arg . Set streaming , " Streaming mode : read and write a sequence of JSON values instead of just one ( default ) . " ; " - u " , Arg . Clear streaming , " A single JSON record is expected . ( no longer the default since 1 . 1 . 1 ) " ; " - sort " , Arg . Set sort , " Sort object fields ( default : preserve field order ) " ; " - ob " , Arg . Set output_biniou , " \ Experimental " ; " - version " , Arg . Unit ( fun ( ) -> print_endline Yojson . version ; exit 0 ) , " \ Print version of yojson and ydump and exit . " ] in let files = ref [ ] in let anon_fun s = files := s :: ! files in let msg = sprintf " \ % s license Sys . argv . ( 0 ) in Arg . parse options anon_fun msg ; let in_file = match List . rev ! files with \| [ x ] -> ` File x \| _ -> in let out_file = match ! out with \| Some x -> ` File x in ! sort , ! output_biniou , ! std , ! compact , ! streaming , in_file , out_file
let ( ) = let sort , output_biniou , std , compact , streaming , in_file , out_file = parse_cmdline ( ) in let success = let rec aux cpt b = if cpt = 100 then b else let b = ( b && cat sort output_biniou std compact streaming in_file out_file ) in aux ( cpt + 1 ) b in aux 0 true in if success then exit 0 else exit 1
let populate_wallet yes_wallet_dir alias_pkh_pk_list = let pkh_filename = " public_key_hashs " in let pk_filename = " public_keys " in let sk_filename = " secret_keys " in if not ( Sys . file_exists yes_wallet_dir ) then Unix . mkdir yes_wallet_dir 0o750 ; Unix . chdir yes_wallet_dir ; if Sys . file_exists pkh_filename \|\| Sys . file_exists pk_filename \|\| Sys . file_exists sk_filename then ( Format . eprintf " Warning : cannot write wallet , at least one of the following files \ already exists : % s { /% s , % s , % s } . " @ yes_wallet_dir pkh_filename pk_filename sk_filename ; false ) else ( json_to_file ( pkh_list_json alias_pkh_pk_list ) pkh_filename ; json_to_file ( pk_list_json alias_pkh_pk_list ) pk_filename ; json_to_file ( sk_list_json alias_pkh_pk_list ) sk_filename ; true )
let usage ( ) = Format . printf " > create minimal in < yes_wallet_dir . " >@ ; Format . printf " creates a yes - wallet with the foundation baker keys in \ < yes_wallet_dir . " >@ ; Format . printf " > create from context < base_dir > in < yes_wallet_dir > [ % s ] . " @ active_bakers_only_opt_name ; Format . printf " creates a yes - wallet with all delegates in the head block of the \ context in < base_dir > and store it in < yes_wallet_dir . " >@ ; Format . printf " if % s is used the deactivated bakers are filtered out . " @ active_bakers_only_opt_name
let ( ) = let argv = Array . to_list Sys . argv in let ( options , argv ) = List . partition ( fun arg -> String . length arg > 0 && String . get arg 0 = ' ' ) - argv in let active_bakers_only = List . exists ( fun opt -> opt = active_bakers_only_opt_name ) options in let unknonw_options = List . filter ( fun opt -> opt <> active_bakers_only_opt_name ) options in if unknonw_options <> [ ] then Format . eprintf " Warning : unknown options % a . " @ ( Format . pp_print_list Format . pp_print_string ) unknonw_options ; match argv with \| [ ] -> assert false \| [ _ ] -> usage ( ) ; exit 0 \| [ _ ; " create " ; " minimal " ; " in " ; yes_wallet_dir ] -> if active_bakers_only then Format . eprintf " Warning : option % s is ignored for create minimal . " @ active_bakers_only_opt_name ; if populate_wallet yes_wallet_dir Yes_wallet_lib . alias_pkh_pk_list then Format . printf " Created minimal wallet in % s . " @ yes_wallet_dir \| [ _ ; " create " ; " from " ; " context " ; base_dir ; " in " ; yes_wallet_dir ] -> let alias_pkh_pk_list = Yes_wallet_lib . load_mainnet_bakers_public_keys base_dir active_bakers_only in if populate_wallet yes_wallet_dir alias_pkh_pk_list then Format . printf " Created wallet in % s . " @ yes_wallet_dir \| _ -> Format . eprintf " Invalid command . Usage . " :@ ; usage ( ) ; exit 1
type protocol = Florence \| Granada \| Hangzhou \| Ithaca \| Alpha
let string_of_protocol = function \| Florence -> " Florence " \| Granada -> " Granada " \| Hangzhou -> " Hangzhou " \| Ithaca -> " Ithaca " \| Alpha -> " Alpha "
let pp_protocol ppf protocol = Format . fprintf ppf " % s " ( string_of_protocol protocol )
let pkh_json ( alias , pkh , _pk ) = Ezjsonm . ( dict [ ( " name " , string alias ) ; ( " value " , string pkh ) ] )
let pk_json ( alias , _pkh , pk ) = Ezjsonm . ( dict [ ( " name " , string alias ) ; ( " value " , dict [ ( " locator " , string @@ " unencrypted " : ^ pk ) ; ( " key " , string pk ) ] ) ; ] )
let sk_of_pk ( pk_s : string ) : string = let open Tezos_crypto . Signature in let pk = Public_key . of_b58check_exn pk_s in let pk_b = Data_encoding . Binary . to_bytes_exn Public_key . encoding pk in let sk_b = Bytes . sub pk_b 0 33 in let sk = Data_encoding . Binary . of_bytes_exn Secret_key . encoding sk_b in let sk_s = Secret_key . to_b58check sk in sk_s
let sk_json ( alias , _pkh , pk ) = Ezjsonm . ( dict [ ( " name " , string alias ) ; ( " value " , string @@ " unencrypted " : ^ sk_of_pk pk ) ; ] )
let map_bind_to_json f list = Ezjsonm . list f list
let pkh_list_json list = map_bind_to_json pkh_json list
let pk_list_json list = map_bind_to_json pk_json list
let sk_list_json list = map_bind_to_json sk_json list
let json_to_file json file = let chan = open_out file in Ezjsonm . to_channel ~ minify : false chan json ; close_out chan
let alias_pkh_pk_list = [ ( " foundation1 " , " tz3RDC3Jdn4j15J7bBHZd29EUee9gVB1CxD9 " , " p2pk67wVncLFS1DQDm2gVR45sYCzQSXTtqn3bviNYXVCq6WRoqtxHXL " ) ; ( " foundation2 " , " tz3bvNMQ95vfAYtG8193ymshqjSvmxiCUuR5 " , " p2pk66n1NmhPDEkcf9sXEKe9kBoTwBoTYxke1hx16aTRVq8MoXuwNqo " ) ; ( " foundation3 " , " tz3RB4aoyjov4KEVRbuhvQ1CKJgBJMWhaeB8 " , " p2pk67NECc8vGK4eLbXGEgBZGhk53x1pCMbgnFEgLxZEMGDtzVcFQok " ) ; ( " foundation4 " , " tz3bTdwZinP8U1JmSweNzVKhmwafqWmFWRfk " , " p2pk6796esaR3dNr8jUx8S7xxZdRvpYSrhHMg6NagjwMRJHsERMiUKM " ) ; ( " foundation5 " , " tz3NExpXn9aPNZPorRE4SdjJ2RGrfbJgMAaV " , " p2pk66iTZwLmRPshQgUr2HE3RUzSFwAN5MNaBQ5rfduT1dGKXd25pNN " ) ; ( " foundation6 " , " tz3UoffC7FG7zfpmvmjUmUeAaHvzdcUvAj6r " , " p2pk65ffAqpYT6Et73DXdNqudthwmSNzNyzL3Wdn2EYuiiMwoPu6vFJ " ) ; ( " foundation7 " , " tz3WMqdzXqRWXwyvj5Hp2H7QEepaUuS7vd9K " , " p2pk67Cwb5Ke6oSmqeUbJxURXMe3coVnH9tqPiB2xD84CYhHbBKs4oM " ) ; ( " foundation8 " , " tz3VEZ4k6a4Wx42iyev6i2aVAptTRLEAivNN " , " p2pk67uapBxwkM1JNasGJ6J3rozzYELgrtcqxKZwZLjvsr4XcAr4FqC " ) ; ]
let get_delegates ( proto : protocol ) context ( header : Block_header . shell_header ) active_bakers_only = let open Lwt_tzresult_syntax in let level = header . Block_header . level in let predecessor_timestamp = header . timestamp in let timestamp = Time . Protocol . add predecessor_timestamp 10000L in let fitness = header . fitness in match proto with \| Florence -> let open Tezos_protocol_009_PsFLoren . Protocol in let * ( ctxt , _ ) = let ! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp ~ fitness in Lwt . return @@ Environment . wrap_tzresult r in let delegates = Alpha_context . Delegate . fold ctxt ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let ! r = Alpha_context . Roll . delegate_pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let ? acc = acc in let * staking_balance = let ! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let b = let ! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with \| true -> return acc \| false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates \| Granada -> let open Tezos_protocol_010_PtGRANAD . Protocol in let ( ctxt , _ , _ ) = let ! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp ~ fitness in Lwt . return @@ Environment . wrap_tzresult r in let delegates = Alpha_context . Delegate . fold ctxt ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let ! r = Alpha_context . Roll . delegate_pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let ? acc = acc in let * staking_balance = let ! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let b = let ! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with \| true -> return acc \| false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates \| Hangzhou -> let open Tezos_protocol_011_PtHangz2 . Protocol in let ( ctxt , _ , _ ) = let ! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp ~ fitness in Lwt . return @@ Environment . wrap_tzresult r in let delegates = Alpha_context . Delegate . fold ctxt ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let ! r = Alpha_context . Roll . delegate_pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let ? acc = acc in let * staking_balance = let ! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let b = let ! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with \| true -> return acc \| false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates \| Ithaca -> let open Tezos_protocol_012_Psithaca . Protocol in let ( ctxt , _ , _ ) = let ! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp in Lwt . return @@ Environment . wrap_tzresult r in let delegates = Alpha_context . Delegate . fold ctxt ~ order ` : Sorted ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let ! r = Alpha_context . Delegate . pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let ? acc = acc in let * staking_balance = let ! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let b = let ! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with \| true -> return acc \| false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates \| Alpha -> let open Tezos_protocol_alpha . Protocol in let ( ctxt , _ , _ ) = let ! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp in Lwt . return @@ Environment . wrap_tzresult r in let delegates = Alpha_context . Delegate . fold ctxt ~ order ` : Sorted ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let ! r = Alpha_context . Delegate . pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let ? acc = acc in let * staking_balance = let ! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let b = let *! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with \| true -> return acc \| false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates
let protocol_of_hash protocol_hash = if Protocol_hash . equal protocol_hash Tezos_protocol_009_PsFLoren . Protocol . hash then Some Florence else if Protocol_hash . equal protocol_hash Tezos_protocol_010_PtGRANAD . Protocol . hash then Some Granada else if Protocol_hash . equal protocol_hash Tezos_protocol_011_PtHangz2 . Protocol . hash then Some Hangzhou else if Protocol_hash . equal protocol_hash Tezos_protocol_012_Psithaca . Protocol . hash then Some Ithaca else if Protocol_hash . equal protocol_hash Tezos_protocol_alpha . Protocol . hash then Some Alpha else None
let load_mainnet_bakers_public_keys base_dir active_bakers_only = let open Lwt_tzresult_syntax in let open Tezos_store in let mainnet_genesis = { Genesis . time = Time . Protocol . of_notation_exn " 2018 - 06 - 30T16 : 07 : 32Z " ; block = Block_hash . of_b58check_exn " BLockGenesisGenesisGenesisGenesisGenesisf79b5d1CoW2 " ; protocol = Protocol_hash . of_b58check_exn " Ps9mPmXaRzmzk35gbAYNCAw6UXdE2qoABTHbN2oEEc1qM7CwT9P " ; } in let * store = Tezos_store . Store . init ~ store_dir ( : Filename . concat base_dir " store " ) ~ context_dir ( : Filename . concat base_dir " context " ) ~ allow_testchains : true ~ readonly : true mainnet_genesis in let main_chain_store = Store . main_chain_store store in let ! block = Tezos_store . Store . Chain . current_head main_chain_store in Format . printf " Head block found and loaded ( % a ) . " @ Block_hash . pp ( Tezos_store . Store . Block . hash block ) ; let header = Store . Block . header block in let ! context = let ! r = Store . Block . context_exn main_chain_store block in Lwt . return @@ Tezos_shell_context . Shell_context . wrap_disk_context r in let ! protocol_hash = Store . Block . protocol_hash_exn main_chain_store block in let header = header . shell in let * delegates = match protocol_of_hash protocol_hash with \| None -> Error_monad . failwith " unknown protocol hash " \| Some protocol -> Format . printf " Protocol % a detected . " @ pp_protocol protocol ; get_delegates protocol context header active_bakers_only in let *! ( ) = Tezos_store . Store . close_store store in return @@ List . mapi ( fun i ( pkh , pk ) -> let pkh = Signature . Public_key_hash . to_b58check pkh in let pk = Signature . Public_key . to_b58check pk in let alias = List . find_map ( fun ( alias , pkh ' , _ ) -> if String . equal pkh ' pkh then Some alias else None ) alias_pkh_pk_list in let alias = Option . value ~ default ( : Format . asprintf " baker_ % d " i ) alias in ( alias , pkh , pk ) ) delegates
let load_mainnet_bakers_public_keys base_dir active_bakers_only = match Lwt_main . run ( load_mainnet_bakers_public_keys base_dir active_bakers_only ) with \| Ok alias_pkh_pk_list -> alias_pkh_pk_list \| Error trace -> Format . eprintf " error . :@% a . " @ Error_monad . pp_print_trace trace ; exit 1
type t = { month_count : int }
let equal ( x : t ) ( y : t ) = x . month_count = y . month_count
let lt ( x : t ) ( y : t ) = x . month_count < y . month_count
let le ( x : t ) ( y : t ) = x . month_count <= y . month_count
let gt ( x : t ) ( y : t ) = x . month_count > y . month_count
let ge ( x : t ) ( y : t ) = x . month_count >= y . month_count
let compare ( x : t ) ( y : t ) = compare x . month_count y . month_count
let month_count_of_ym ~ year ~ month = ( year * 12 ) + ( month - 1 )
let ym_of_month_count month_count = if month_count >= 0 then ( month_count / 12 , ( month_count mod 12 ) + 1 ) else ( ( month_count - 11 ) / 12 , ( ( ( month_count mod 12 ) + 12 ) mod 12 ) + 1 )
type error = [ ` Does_not_exist \| ` Invalid_year of int \| ` Invalid_month of int ]
let make ~ year ~ month : ( t , error ) result = if year < Constants . min_year \|\| Constants . max_year < year then Error ( ` Invalid_year year ) else if month < 1 \|\| 12 < month then Error ( ` Invalid_month month ) else Ok { month_count = month_count_of_ym ~ year ~ month }
let make_exn ~ year ~ month : t = match make ~ year ~ month with Error e -> raise ( Error_exn e ) \| Ok x -> x
let sub_month_count ( t : t ) n : t = { month_count = t . month_count - n }
let sub ( ? years = 0 ) ( ? months = 0 ) t : t = sub_month_count t ( ( years * 12 ) + months )
let add_month_count ( t : t ) n : t = { month_count = t . month_count + n }
let add ( ? years = 0 ) ( ? months = 0 ) t : t = add_month_count t ( ( years * 12 ) + months )
let diff_months t1 t2 = t1 . month_count - t2 . month_count
let year_month ( t : t ) : int * int = ym_of_month_count t . month_count
let year ( t : t ) : int = fst @@ year_month t
let month ( t : t ) : int = snd @@ year_month t
module Alco = struct let lt_case0 ( ) = Alcotest . ( check bool ) " less than " true Timedesc . Ym . ( lt ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 2 ) ) let lt_case1 ( ) = Alcotest . ( check bool ) " less than " false Timedesc . Ym . ( lt ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let lt_case2 ( ) = Alcotest . ( check bool ) " less than " false Timedesc . Ym . ( lt ( make_exn ~ year : 2000 ~ month : 2 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let le_case0 ( ) = Alcotest . ( check bool ) " less than or equal to " true Timedesc . Ym . ( le ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 2 ) ) let le_case1 ( ) = Alcotest . ( check bool ) " less than or equal to " true Timedesc . Ym . ( le ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let le_case2 ( ) = Alcotest . ( check bool ) " less than or equal to " false Timedesc . Ym . ( le ( make_exn ~ year : 2000 ~ month : 2 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let gt_case0 ( ) = Alcotest . ( check bool ) " greater than or equal to " true Timedesc . Ym . ( gt ( make_exn ~ year : 2000 ~ month : 2 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let gt_case1 ( ) = Alcotest . ( check bool ) " greater than or equal to " false Timedesc . Ym . ( gt ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let gt_case2 ( ) = Alcotest . ( check bool ) " greater than or equal to " false Timedesc . Ym . ( gt ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 2 ) ) let ge_case0 ( ) = Alcotest . ( check bool ) " greater than or equal to " true Timedesc . Ym . ( ge ( make_exn ~ year : 2000 ~ month : 2 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let ge_case1 ( ) = Alcotest . ( check bool ) " greater than or equal to " true Timedesc . Ym . ( ge ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let ge_case2 ( ) = Alcotest . ( check bool ) " greater than or equal to " false Timedesc . Ym . ( ge ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 2 ) ) let of_iso8601_case0 ( ) = Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . of_iso8601_exn " 1977 - 06 " ) ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 6 ) let wrap_around_case0 ( ) = let y = Timedesc . Ym . add ~ months : 1 ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 12 ) in Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . make_exn ~ year : 1978 ~ month : 1 ) y let wrap_around_case1 ( ) = let y = Timedesc . Ym . add ~ months : 13 ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 12 ) in Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . make_exn ~ year : 1979 ~ month : 1 ) y let wrap_around_case2 ( ) = let y = Timedesc . Ym . sub ~ months : 1 ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 1 ) in Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . make_exn ~ year : 1976 ~ month : 12 ) y let wrap_around_case3 ( ) = let y = Timedesc . Ym . sub ~ months : 13 ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 1 ) in Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . make_exn ~ year : 1975 ~ month : 12 ) y let suite = [ Alcotest . test_case " lt_case0 " ` Quick lt_case0 ; Alcotest . test_case " lt_case1 " ` Quick lt_case1 ; Alcotest . test_case " lt_case2 " ` Quick lt_case2 ; Alcotest . test_case " le_case0 " ` Quick le_case0 ; Alcotest . test_case " le_case1 " ` Quick le_case1 ; Alcotest . test_case " le_case2 " ` Quick le_case2 ; Alcotest . test_case " gt_case0 " ` Quick gt_case0 ; Alcotest . test_case " gt_case1 " ` Quick gt_case1 ; Alcotest . test_case " gt_case2 " ` Quick gt_case2 ; Alcotest . test_case " ge_case0 " ` Quick ge_case0 ; Alcotest . test_case " ge_case1 " ` Quick ge_case1 ; Alcotest . test_case " ge_case2 " ` Quick ge_case2 ; Alcotest . test_case " of_iso8601_case0 " ` Quick of_iso8601_case0 ; Alcotest . test_case " wrap_around_case0 " ` Quick wrap_around_case0 ; Alcotest . test_case " wrap_around_case1 " ` Quick wrap_around_case1 ; Alcotest . test_case " wrap_around_case2 " ` Quick wrap_around_case2 ; Alcotest . test_case " wrap_around_case3 " ` Quick wrap_around_case3 ; ] end
module Qc = struct let to_iso8601_of_iso8601 = QCheck . Test . make ~ count : 100_000 ~ name " : to_iso8601_of_iso8601 " ym ( fun ( year , month ) -> let d = Timedesc . Ym . make_exn ~ year ~ month in let d ' = d \|> Timedesc . Ym . to_iso8601 \|> Timedesc . Ym . of_iso8601 \|> CCResult . get_exn in Timedesc . Ym . equal d d ' ) let add_identity = QCheck . Test . make ~ count : 100_000 ~ name " : add_identity " ym ( fun ( year , month ) -> let x = Timedesc . Ym . make_exn ~ year ~ month in Timedesc . Ym . ( equal ( add ~ months : 0 x ) x ) ) let sub_identity = QCheck . Test . make ~ count : 100_000 ~ name " : sub_identity " ym ( fun ( year , month ) -> let x = Timedesc . Ym . make_exn ~ year ~ month in Timedesc . Ym . ( equal ( sub ~ months : 0 x ) x ) ) let add_sub = QCheck . Test . make ~ count : 100_000 ~ name " : add_sub " QCheck . ( pair ym small_int ) ( fun ( ( year , month ) , y ) -> let x = Timedesc . Ym . make_exn ~ year ~ month in Timedesc . Ym . ( equal x ( sub ~ months : y ( add ~ months : y x ) ) ) ) let sub_add = QCheck . Test . make ~ count : 100_000 ~ name " : sub_add " QCheck . ( pair ym small_int ) ( fun ( ( year , month ) , y ) -> let x = Timedesc . Ym . make_exn ~ year ~ month in Timedesc . Ym . ( equal x ( add ~ months : y ( sub ~ months : y x ) ) ) ) let add_diff = QCheck . Test . make ~ count : 100_000 ~ name " : add_diff " QCheck . ( pair ym iso_week ) ( fun ( ( year_x , month_x ) , ( year_y , month_y ) ) -> let x = Timedesc . Ym . make_exn ~ year : year_x ~ month : month_x in let y = Timedesc . Ym . make_exn ~ year : year_y ~ month : month_y in let diff = Timedesc . Ym . diff_months x y in Timedesc . Ym . ( equal x ( add ~ months : diff y ) ) ) let sub_diff = QCheck . Test . make ~ count : 100_000 ~ name " : sub_diff " QCheck . ( pair ym iso_week ) ( fun ( ( year_x , month_x ) , ( year_y , month_y ) ) -> let x = Timedesc . Ym . make_exn ~ year : year_x ~ month : month_x in let y = Timedesc . Ym . make_exn ~ year : year_y ~ month : month_y in let diff = Timedesc . Ym . diff_months x y in Timedesc . Ym . ( equal y ( sub ~ months : diff x ) ) ) let suite = [ to_iso8601_of_iso8601 ; add_identity ; sub_identity ; add_sub ; sub_add ; add_diff ; sub_diff ; ] end
module Pretty = struct end
module Util = struct # include " util . ml " end end
module Util = struct # include " util . ml " end end
module Raw = struct end
let rec biniou_of_json = function ` Null -> ` Unit \| ` Bool b -> ` Bool b \| ` Int i -> ` Svint i \| ` Intlit i -> failwith " Cannot convert big int to biniou " \| ` Float f -> ` Float64 f \| ` String s -> ` String s \| ` Assoc l -> let a = Array . map ( fun ( s , x ) -> ( Some s , Bi_io . hash_name s , biniou_of_json x ) ) ( Array . of_list l ) in ` Record a \| ` List l -> ( match l with [ ] -> ` Array None \| l -> let a = Array . map biniou_of_json ( Array . of_list l ) in let tag = Bi_io . tag_of_tree a . ( 0 ) in try for i = 1 to Array . length a - 1 do if Bi_io . tag_of_tree a . ( i ) <> tag then raise Exit done ; ` Array ( Some ( tag , a ) ) with Exit -> failwith " Cannot convert heterogenous array to biniou " ) \| ` Tuple l -> ` Tuple ( Array . map biniou_of_json ( Array . of_list l ) ) \| ` Variant ( s , o ) -> let o = match o with None -> None \| Some x -> Some ( biniou_of_json x ) in ` Variant ( Some s , Bi_io . hash_name s , o )
let rec json_of_biniou ( x : Bi_io . tree ) = match x with ` Unit -> ` Null \| ` Bool b -> ` Bool b \| ` Int8 _ -> failwith " Cannot convert int8 to JSON " \| ` Int16 _ -> failwith " Cannot convert int16 to JSON " \| ` Int32 _ -> failwith " Cannot convert int32 to JSON " \| ` Int64 _ -> failwith " Cannot convert int64 to JSON " \| ` Float32 f \| ` Float64 f -> ` Float f \| ` Uvint i -> failwith " Cannot convert uvint to JSON " \| ` Svint i -> ` Int i \| ` String s -> ` String s \| ` Array None -> ` List [ ] \| ` Array ( Some ( _ , a ) ) -> ` List ( Array . to_list ( Array . map json_of_biniou a ) ) \| ` Tuple a -> ` Tuple ( Array . to_list ( Array . map json_of_biniou a ) ) \| ` Record a -> ` Assoc ( Array . to_list ( Array . map ( function ( Some s , _ , x ) -> ( s , json_of_biniou x ) \| ( None , _ , _ ) -> failwith " Cannot convert hashed field name to JSON " ) a ) ) \| ` Num_variant _ -> failwith " Cannot convert num_variant to JSON " \| ` Variant ( Some s , _ , Some x ) -> ` Variant ( s , Some ( json_of_biniou x ) ) \| ` Variant ( Some s , _ , None ) -> ` Variant ( s , None ) \| ` Variant ( None , _ , _ ) -> failwith " Cannot convert hashed variant name to JSON " \| ` Table None -> ` List [ ] \| ` Table ( Some ( header , rows ) ) -> ` List ( Array . to_list ( Array . map ( json_of_row header ) rows ) ) \| ` Shared _ -> failwith " Cannot convert shared node to JSON " let n = Array . length header in if Array . length a <> n then failwith " Malformed biniou table " ; let l = ref [ ] in for i = n - 1 downto 0 do let o , _ , _ = header . ( i ) in let x = a . ( i ) in match o with None -> failwith " Cannot convert hashed field name to JSON " \| Some s -> l := ( s , json_of_biniou x ) :: ! l done ; ` Assoc ! l
let test = let open Yojson_unittest_types in let all_basic_types = { field01 = 1 . 2000001 ; field02 = 1 . 2 ; field03 = 0xEFFFFFFFl ; field04 = 0xEBABABABABABABABL ; field05 = 0x7FFFFFFFl ; field06 = 0x7BABABABABABABABL ; field07 = 0xEFFFFFFFl ; field08 = 0xEBABABABABABABABL ; field09 = 0xEFFFFFFFl ; field10 = 0xEBABABABABABABABL ; field13 = true ; field14 = " This is a test " \ string " " ; \ repeated01 = [ 1 . 2000001 ; ] ; repeated02 = [ 1 . 2 ; ] ; repeated03 = [ 0xEFFFFFFFl ; ] ; repeated04 = [ 0xEBABABABABABABABL ; ] ; repeated05 = [ 0x7FFFFFFFl ; ] ; repeated06 = [ 0x7BABABABABABABABL ; ] ; repeated07 = [ 0xEFFFFFFFl ; ] ; repeated08 = [ 0xEBABABABABABABABL ; ] ; repeated09 = [ 0xEFFFFFFFl ; ] ; repeated10 = [ 0xEBABABABABABABABL ; ] ; repeated13 = [ true ; ] ; repeated14 = [ " This is a test " \ string ] " " ; ; \ } in let small_message = { sm_string = " This " \ IS " \ a small string " ; } in let test_enum0 = Value0 in let test_enum1 = Value1 in let test_enum2 = Value_two in let single_one_of_string : single_one_of = String_value " This is the single one " \ string " " \ in let single_one_of_int : single_one_of = Int_value 0xEFABABABl in let single_one_of_enum : single_one_of = Enum_value test_enum0 in let single_one_of_small_message : single_one_of = Small_message small_message in let single_one_of_recursive : single_one_of = Recursive_value single_one_of_small_message in { all_basic_types = Some all_basic_types ; test_enum0 ; test_enum1 ; test_enum2 ; single_one_of_string = Some single_one_of_string ; single_one_of_int = Some single_one_of_int ; single_one_of_enum = Some single_one_of_enum ; single_one_of_small_message = Some single_one_of_small_message ; single_one_of_recursive = Some single_one_of_recursive ; repeated_enum = [ test_enum0 ; test_enum1 ; test_enum2 ] test_enum2 ; }
let ( ) = let json_str = Yojson_unittest_yojson . encode_test test \|> Yojson . Basic . to_string in print_endline json_str ; let test ' = json_str \|> Yojson . Basic . from_string \|> Yojson_unittest_yojson . decode_test in assert ( asserttest = test ' ) test ' ; ( )
let ( ) = print_endline " \ nConsistency tests . . . Ok "
let ( ) = let ic = let filename = " yojson . data " in open_in filename in let buffer_len = 1024 * 1024 in let buffer = Bytes . create buffer_len in let buffer_len = match input ic buffer 0 buffer_len with \| i when i < buffer_len -> i \| _ -> assert ( assertfalse ) assertfalse in let test ' = Bytes . sub_string buffer 0 buffer_len \|> Yojson . Basic . from_string \|> Yojson_unittest_yojson . decode_test in let open Yojson_unittest_types in assert ( asserttest ' . all_basic_types = test . all_basic_types ) all_basic_types ; assert ( asserttest ' . test_enum0 = test . test_enum0 ) test_enum0 ; assert ( asserttest ' . test_enum1 = test . test_enum1 ) test_enum1 ; assert ( asserttest ' . test_enum2 = test . test_enum2 ) test_enum2 ; assert ( asserttest ' . single_one_of_string = test . single_one_of_string ) single_one_of_string ; assert ( asserttest ' . single_one_of_int = test . single_one_of_int ) single_one_of_int ; assert ( asserttest ' . single_one_of_enum = test . single_one_of_enum ) single_one_of_enum ; assert ( asserttest ' . single_one_of_small_message = test . single_one_of_small_message ) single_one_of_small_message ; assert ( asserttest ' . single_one_of_recursive = test . single_one_of_recursive ) single_one_of_recursive ; print_endline " \ nConformance tests . . . Ok " ; ( )
type bbox = { xmin : float ; ymin : float ; xmax : float ; ymax : float ; confidence : float ; class_index : int ; class_confidence : float }
let iou b1 b2 = let b1_area = ( b1 . xmax . - b1 . xmin . + 1 . ) . * ( b1 . ymax . - b1 . ymin . + 1 . ) in let b2_area = ( b2 . xmax . - b2 . xmin . + 1 . ) . * ( b2 . ymax . - b2 . ymin . + 1 . ) in let i_xmin = Float . max b1 . xmin b2 . xmin in let i_xmax = Float . min b1 . xmax b2 . xmax in let i_ymin = Float . max b1 . ymin b2 . ymin in let i_ymax = Float . min b1 . ymax b2 . ymax in let i_area = Float . max 0 . ( i_xmax . - i_xmin . + 1 . ) . * Float . max 0 . ( i_ymax . - i_ymin . + 1 . ) in i_area . / ( b1_area . + b2_area . - i_area )
let colors = [ \| [ \| 0 . 5 ; 0 . 0 ; 0 . 5 ] \| ; [ \| 0 . 0 ; 0 . 5 ; 0 . 5 ] \| ; [ \| 0 . 5 ; 0 . 5 ; 0 . 0 ] \| ; [ \| 0 . 7 ; 0 . 3 ; 0 . 0 ] \| ; [ \| 0 . 7 ; 0 . 0 ; 0 . 3 ] \| ; [ \| 0 . 0 ; 0 . 7 ; 0 . 3 ] \| ; [ \| 0 . 3 ; 0 . 7 ; 0 . 0 ] \| ; [ \| 0 . 3 ; 0 . 0 ; 0 . 7 ] \| ; [ \| 0 . 0 ; 0 . 3 ; 0 . 7 ] \| ] \|
let report predictions ~ image ~ width ~ height = Tensor . print_shape ~ name " : predictions " predictions ; let bboxes = List . init ( Tensor . shape2_exn predictions \|> fst ) ~ f ( : fun index -> let predictions = Tensor . get predictions index \|> Tensor . to_float1_exn in let confidence = predictions . ( 4 ) in if Float . ( > ) confidence confidence_threshold then ( let xmin = predictions . ( 0 ) . - ( predictions . ( 2 ) . / 2 . ) in let ymin = predictions . ( 1 ) . - ( predictions . ( 3 ) . / 2 . ) in let xmax = predictions . ( 0 ) . + ( predictions . ( 2 ) . / 2 . ) in let ymax = predictions . ( 1 ) . + ( predictions . ( 3 ) . / 2 . ) in let best_class_index = Array . foldi predictions ~ init : 5 ~ f ( : fun index max_index v -> if index > 5 && Float . ( < ) predictions . ( max_index ) v then index else max_index ) in let class_confidence = predictions . ( best_class_index ) in let class_index = best_class_index - 5 in if Float . ( > ) class_confidence 0 . then Some { confidence ; xmin ; ymin ; xmax ; ymax ; class_index ; class_confidence } else None ) else None ) \|> List . filter_opt in let bboxes = List . map bboxes ~ f ( : fun bbox -> bbox . class_index , ( bbox . confidence , bbox ) ) \|> Map . of_alist_multi ( module Int ) \|> Map . to_alist \|> List . concat_map ~ f ( : fun ( _ , bboxes ) -> let bboxes = List . sort bboxes ~ compare : Caml . compare \|> List . rev_map ~ f : snd in List . fold bboxes ~ init [ ] : ~ f ( : fun acc_bboxes bbox -> let drop = List . exists acc_bboxes ~ f ( : fun b -> Float . ( > ) ( iou b bbox ) nms_threshold ) in if drop then acc_bboxes else bbox :: acc_bboxes ) ) in let image = Tensor . ( to_type image ~ type_ ( : T Float ) / f 255 . ) in let _ , _ , initial_height , initial_width = Tensor . shape4_exn image in let resize_and_clamp v ~ initial_max ~ max = Int . of_float ( v . * Float . of_int initial_max . / Float . of_int max ) \|> Int . max 0 \|> Int . min ( initial_max - 1 ) in List . iter bboxes ~ f ( : fun b -> let xmin = resize_and_clamp b . xmin ~ initial_max : initial_width ~ max : width in let xmax = resize_and_clamp b . xmax ~ initial_max : initial_width ~ max : width in let ymin = resize_and_clamp b . ymin ~ initial_max : initial_height ~ max : height in let ymax = resize_and_clamp b . ymax ~ initial_max : initial_height ~ max : height in let color = colors . ( b . class_index % Array . length colors ) in let color = Tensor . ( of_float1 color \|> reshape ~ shape [ : 1 ; 3 ; 1 ; 1 ] ) in let draw_rect xmin xmax ymin ymax = Tensor . narrow image ~ dim : 3 ~ start : xmin ~ length ( : xmax - xmin ) \|> Tensor . narrow ~ dim : 2 ~ start : ymin ~ length ( : ymax - ymin ) \|> Tensor . copy_ ~ src : color in draw_rect xmin xmax ymin ( Int . min ( ymin + 2 ) ymax ) ; draw_rect xmin xmax ( Int . max ymin ( ymax - 2 ) ) ymax ; draw_rect ( Int . max xmin ( xmax - 2 ) ) xmax ymin ymax ; draw_rect xmin ( Int . min ( xmin + 2 ) xmax ) ymin ymax ; Stdio . printf " % s . % 2f . % 2f ( % d % d % d % d ) \ n " %! classes . ( b . class_index ) b . confidence b . class_confidence xmin xmax ymin ymax ) ; Image . write_image Tensor . ( image * f 255 . ) ~ filename " : output . jpg "
let ( ) = let module Sys = Caml . Sys in if Array . length Sys . argv <> 3 then Printf . failwithf " usage : % s yolo - v3 . ot input . png " Sys . argv . ( 0 ) ( ) ; let vs = Var_store . create ~ name " : rn " ~ device : Cpu ( ) in let darknet = Darknet . parse_config config_filename in let model = Darknet . build_model vs darknet in Stdio . printf " Loading weights from % s \ n " %! Sys . argv . ( 1 ) ; Serialize . load_multi_ ~ named_tensors ( : Var_store . all_vars vs ) ~ filename : Sys . argv . ( 1 ) ; let width , height = Darknet . width darknet , Darknet . height darknet in let image = Image . load_image Sys . argv . ( 2 ) \|> Or_error . ok_exn in let resized_image = Image . resize image ~ width ~ height in let resized_image = Tensor . ( to_type resized_image ~ type_ ( : T Float ) / f 255 . ) in let predictions = Layer . forward_ model resized_image ~ is_training : false in Tensor . squeeze predictions \|> report ~ image ~ width ~ height
type ( ' a , ' b ) ' b exec = ( ' a , unit , string , ' b ) ' b format4 -> ' a
let env = Hashtbl . create 8
let shell_set = ref " "
let suppress_failure = ref false
let last_status = ref 0
let export k v = Hashtbl . replace env k ( Some v ) v
let set opts = shell_set := opts
let unset k = Hashtbl . replace env k None
let getenv_default var default = try Sys . getenv var with Not_found -> default
let q = Printf . sprintf " " \% s " " \
let ql = map q
let split_char_bounded str ~ on ~ max = let open String in if str = " " then [ ] else if max = 1 then [ str ] str else let rec loop offset tokens = if tokens = max - 1 then [ sub str offset ( length str - offset ) offset ] offset else try let index = index_from str offset on in if index = offset then ( " " :: loop ( offset + 1 ) 1 ( tokens + 1 ) 1 ) 1 else let token = String . sub str offset ( index - offset ) offset in token ( :: loop ( index + 1 ) 1 ( tokens + 1 ) 1 ) 1 with Not_found -> [ sub str offset ( length str - offset ) offset ] offset in loop 0 0
let split_char_unbounded_no_trailer str ~ on = let open String in if str = " " then [ ] else let rec loop acc offset = try begin let index = rindex_from str offset on in if index = offset then loop acc ( index - 1 ) 1 else let token = sub str ( index + 1 ) 1 ( offset - index ) index in loop ( token :: acc ) acc ( index - 1 ) 1 end with Not_found -> ( sub str 0 ( offset + 1 ) 1 ) 1 :: acc in loop [ ] ( length str - 1 ) 1
let some = function " " -> None \| x -> Some x
let list = split_char_unbounded_no_trailer ~ on : ' '
let lines = let rm_trailing_CR s = let len = String . length s in if len > 0 && s [ . len - 1 ] 1 = ' \ r ' then String . sub s 0 ( len - 1 ) 1 else s in fun str -> let l = split_char_unbounded_no_trailer ~ on : ' \ n ' str in List . map rm_trailing_CR l
let pair s = match split_char_bounded s ~ on : ' : ' ~ max : 2 with \| [ ] -> ( " " , None ) None \| [ x ] x -> ( x , None ) None \| x :: y :: _ -> ( x , Some y ) y
let fuzzy_bool_of_string s = match String . lowercase s with \| " false " \| " 0 " -> false \| _ -> true
let echo fmt = Printf . ksprintf print_endline fmt
let is_space = function ' ' \| ' \ 012 ' \| ' \ n ' \| ' \ r ' \| ' \ t ' -> true \| _ -> false
let trim s = let open String in let len = length s in let i = ref 0 in while ! i < len && is_space ( unsafe_get s ! i ) i do incr i done ; let j = ref ( len - 1 ) 1 in while ! j >= ! i && is_space ( unsafe_get s ! j ) j do decr j done ; if ! j >= ! i then sub s ! i ( ! j - ! i + 1 ) 1 else " "
let escape_unprintable s = let must_not_escape = ref true in let i = ref 0 in while ! i < String . length s && ! must_not_escape do if s [ . ! i ] i < ' ' then must_not_escape := false ; incr i done ; if ! must_not_escape then s else ( let b = Buffer . create ( String . length s + 8 ) 8 in for i = 0 to String . length s - 1 do if s [ . i ] i < ' ' then Buffer . add_string b ( Char . escaped s [ . i ] i ) i else Buffer . add_char b s [ . i ] i done ; Buffer . contents b )
let same_fds f = Unix ( . f ~ stdin ~ stdout ~ stderr ) stderr
let shell command ~ stdin ~ stdout ~ stderr = Unix . create_process " sh " [ " \| sh " ; " - c " ; command ] \| stdin stdout stderr
let after pid = Unix ( . match waitpid [ ] pid with \| ( _ , WEXITED k ) k -> last_status := k ; k \| ( _ , WSIGNALED _ ) _ -> failwith " child unexpectedly signaled " \| ( _ , WSTOPPED _ ) _ -> failwith " child unexpectedly stopped " )
let after_shell command ~ stdin ~ stdout ~ stderr = match after ( shell command ~ stdin ~ stdout ~ stderr ) stderr with \| 0 -> ( ) \| x -> if not ! suppress_failure then begin Printf . eprintf " ' % s ' exited % d . Terminating with % d \ n " ( escape_unprintable command ) command x x ; exit x end
module Quips = struct let ( ~ ) list sep = String . concat sep list let ( ) ~~ = format_of_string let apply_env command = let set = match ! shell_set with \| " " -> " " \| opts -> " set " ^ opts " ; ^ " in ( ( Hashtbl . fold ( fun k v list -> match v with \| Some v -> ( k " " ^=^ v " ^ export " ^ k ) " ; " ^:: list \| None -> ( " unset " ^ k ) " ; " ^:: list ) env [ ] ) ~ " ) " ^ set ^ command let ( ?\| ) command = same_fds ( after_shell ( apply_env command ) command ) command let ( ) . ?\| fmt = Printf . ksprintf ( ) ?\| fmt let ( ) ?\|~ fmt = Printf . ksprintf ( fun command -> print_string " \ 027 [ 02736m " ; print_string ( escape_unprintable command ) command ; print_endline " \ 027 [ 0270m " ; ?\| command ) fmt let ( ) ?\|> fmt = Printf . ksprintf ( fun command -> let buf = Buffer . create ( 5 * 80 ) 80 in let rstdout , stdout = Unix . pipe ( ) in Unix . set_close_on_exec rstdout ; let stdin = Unix . stdin in let stderr = Unix . stderr in after_shell ( apply_env command ) command ~ stdin ~ stdout ~ stderr ; Unix . close stdout ; let stdout = Unix . in_channel_of_descr rstdout in try while true do Buffer . add_channel buf stdout 1 done ; " " with End_of_file -> close_in stdout ; Buffer . contents buf ) fmt let ( ) !?? ( quip ( : ' a , ' b ) ' b exec ) exec fmt = Printf . ksprintf ( fun command -> suppress_failure := true ; let r = quip " % s " command in suppress_failure := false ; r ) fmt let ( ) !?* quip fmt = Printf . ksprintf ( fun command -> let r = !?? quip " % s " command in r , ! last_status ) fmt let ( ) ?\|? fmt = Printf . ksprintf ( fun command -> !?? ( ) . ?\| " % s " command ; ! last_status ) fmt let ( ) ?$ = function \| " " @ -> List ( . ql ( tl ( Array . to_list Sys . argv ) argv ) argv ) argv *~ " " \| " " ? -> string_of_int ! last_status \| v -> match some ( getenv_default v ) " " with \| Some v -> v \| None -> Printf . eprintf " I don ' t know what variable ' % s ' means and I give up . \ n " v ; exit 1 end
let zero = Num . num_of_int 0
let of_int64 x = Num . num_of_big_int ( Big_int . big_int_of_int64 x )
let to_int64 x = Big_int . int64_of_big_int ( Num . big_int_of_num x )
let div_rem a b = Num . quo_num a b , Num . mod_num a b
let of_bits b = let n = ref ( Num . num_of_int 0 ) in let p = ref ( Num . num_of_int 1 ) in let f = Num . num_of_int 256 in for i = 0 to String . length b - 1 do let c = Char . code ( String . get b i ) in n := Num . add_num ! n ( Num . mult_num ! p ( Num . num_of_int c ) ) ; p := Num . mult_num ! p f ; done ; ! n
let to_bits n = let n = ref ( Num . abs_num n ) in let l = ref [ ] in let f = Num . num_of_int 256 in while Num . gt_num ! n zero do let d , r = div_rem ! n f in l := Char . unsafe_chr ( to_int r ) :: ! l ; n := d ; done ; let b = Bytes . create ( List . length ! l ) in List . iteri ( fun i c -> Bytes . set b i c ) ( List . rev ! l ) ; Bytes . unsafe_to_string b
let numbits x = assert false
let extract _ _ _ = assert false
let div x y = fst ( div_rem x y )
let sub x y = Num . sub_num x y
let desc e = e . desc

let license = " \ notice , this list of conditions and the following disclaimer . notice , this list of conditions and the following disclaimer in the documentation and / or other materials provided with the distribution . derived from this software without specific prior written permission . "

let polycat write_one streaming in_file out_file = let ic , fname = match in_file with | ` File s -> open_in s , s in let oc = match out_file with | ` File s -> open_out s in let finally ( ) = if oc != stdout then close_out_noerr oc ; if ic != stdin then close_in_noerr ic in try if streaming then Stream . iter ( write_one oc ) ( Yojson . Safe . stream_from_channel ~ fname ic ) else write_one oc ( Yojson . Safe . from_channel ~ fname ic ) ; finally ( ) ; true with e -> finally ( ) ; eprintf " Error :\ n " ; ( match e with | e -> ) ; false

let cat sort output_biniou std compact streaming in_file out_file = if not output_biniou then let write_one oc x = let x = if sort then Yojson . Safe . sort x else x in if compact then else output_char oc ' \ n ' in polycat write_one streaming in_file out_file else let write_one oc x = output_string oc ( Bi_io . string_of_tree ( Yojson_biniou . biniou_of_json x ) ) in polycat write_one streaming in_file out_file

let parse_cmdline ( ) = let out = ref None in let std = ref false in let compact = ref false in let streaming = ref true in let sort = ref false in let output_biniou = ref false in let options = [ " - o " , Arg . String ( fun s -> out := Some s ) , " < file > Output file " ; " - std " , Arg . Set std , " Convert tuples and variants into standard JSON , refuse to print NaN and infinities , require the root node to be either an object or an array . " ; " - c " , Arg . Set compact , " Compact output ( default : pretty - printed ) " ; " - s " , Arg . Set streaming , " Streaming mode : read and write a sequence of JSON values instead of just one ( default ) . " ; " - u " , Arg . Clear streaming , " A single JSON record is expected . ( no longer the default since 1 . 1 . 1 ) " ; " - sort " , Arg . Set sort , " Sort object fields ( default : preserve field order ) " ; " - ob " , Arg . Set output_biniou , " \ Experimental " ; " - version " , Arg . Unit ( fun ( ) -> print_endline Yojson . version ; exit 0 ) , " \ Print version of yojson and ydump and exit . " ] in let files = ref [ ] in let anon_fun s = files := s :: ! files in let msg = sprintf " \ % s license Sys . argv . ( 0 ) in Arg . parse options anon_fun msg ; let in_file = match List . rev ! files with | [ x ] -> ` File x | _ -> in let out_file = match ! out with | Some x -> ` File x in ! sort , ! output_biniou , ! std , ! compact , ! streaming , in_file , out_file

let ( ) = let sort , output_biniou , std , compact , streaming , in_file , out_file = parse_cmdline ( ) in let success = let rec aux cpt b = if cpt = 100 then b else let b = ( b && cat sort output_biniou std compact streaming in_file out_file ) in aux ( cpt + 1 ) b in aux 0 true in if success then exit 0 else exit 1

let populate_wallet yes_wallet_dir alias_pkh_pk_list = let pkh_filename = " public_key_hashs " in let pk_filename = " public_keys " in let sk_filename = " secret_keys " in if not ( Sys . file_exists yes_wallet_dir ) then Unix . mkdir yes_wallet_dir 0o750 ; Unix . chdir yes_wallet_dir ; if Sys . file_exists pkh_filename || Sys . file_exists pk_filename || Sys . file_exists sk_filename then ( Format . eprintf " Warning : cannot write wallet , at least one of the following files \ already exists : % s { /% s , % s , % s } . " @ yes_wallet_dir pkh_filename pk_filename sk_filename ; false ) else ( json_to_file ( pkh_list_json alias_pkh_pk_list ) pkh_filename ; json_to_file ( pk_list_json alias_pkh_pk_list ) pk_filename ; json_to_file ( sk_list_json alias_pkh_pk_list ) sk_filename ; true )

let usage ( ) = Format . printf " > create minimal in < yes_wallet_dir . " >@ ; Format . printf " creates a yes - wallet with the foundation baker keys in \ < yes_wallet_dir . " >@ ; Format . printf " > create from context < base_dir > in < yes_wallet_dir > [ % s ] . " @ active_bakers_only_opt_name ; Format . printf " creates a yes - wallet with all delegates in the head block of the \ context in < base_dir > and store it in < yes_wallet_dir . " >@ ; Format . printf " if % s is used the deactivated bakers are filtered out . " @ active_bakers_only_opt_name

let ( ) = let argv = Array . to_list Sys . argv in let ( options , argv ) = List . partition ( fun arg -> String . length arg > 0 && String . get arg 0 = ' ' ) - argv in let active_bakers_only = List . exists ( fun opt -> opt = active_bakers_only_opt_name ) options in let unknonw_options = List . filter ( fun opt -> opt <> active_bakers_only_opt_name ) options in if unknonw_options <> [ ] then Format . eprintf " Warning : unknown options % a . " @ ( Format . pp_print_list Format . pp_print_string ) unknonw_options ; match argv with | [ ] -> assert false | [ _ ] -> usage ( ) ; exit 0 | [ _ ; " create " ; " minimal " ; " in " ; yes_wallet_dir ] -> if active_bakers_only then Format . eprintf " Warning : option % s is ignored for create minimal . " @ active_bakers_only_opt_name ; if populate_wallet yes_wallet_dir Yes_wallet_lib . alias_pkh_pk_list then Format . printf " Created minimal wallet in % s . " @ yes_wallet_dir | [ _ ; " create " ; " from " ; " context " ; base_dir ; " in " ; yes_wallet_dir ] -> let alias_pkh_pk_list = Yes_wallet_lib . load_mainnet_bakers_public_keys base_dir active_bakers_only in if populate_wallet yes_wallet_dir alias_pkh_pk_list then Format . printf " Created wallet in % s . " @ yes_wallet_dir | _ -> Format . eprintf " Invalid command . Usage . " :@ ; usage ( ) ; exit 1

type protocol = Florence | Granada | Hangzhou | Ithaca | Alpha

let pp_protocol ppf protocol = Format . fprintf ppf " % s " ( string_of_protocol protocol )

let pkh_json ( alias , pkh , _pk ) = Ezjsonm . ( dict [ ( " name " , string alias ) ; ( " value " , string pkh ) ] )

let pk_json ( alias , _pkh , pk ) = Ezjsonm . ( dict [ ( " name " , string alias ) ; ( " value " , dict [ ( " locator " , string @@ " unencrypted " : ^ pk ) ; ( " key " , string pk ) ] ) ; ] )

let sk_of_pk ( pk_s : string ) : string = let open Tezos_crypto . Signature in let pk = Public_key . of_b58check_exn pk_s in let pk_b = Data_encoding . Binary . to_bytes_exn Public_key . encoding pk in let sk_b = Bytes . sub pk_b 0 33 in let sk = Data_encoding . Binary . of_bytes_exn Secret_key . encoding sk_b in let sk_s = Secret_key . to_b58check sk in sk_s

let sk_json ( alias , _pkh , pk ) = Ezjsonm . ( dict [ ( " name " , string alias ) ; ( " value " , string @@ " unencrypted " : ^ sk_of_pk pk ) ; ] )

let map_bind_to_json f list = Ezjsonm . list f list

let pkh_list_json list = map_bind_to_json pkh_json list

let pk_list_json list = map_bind_to_json pk_json list

let sk_list_json list = map_bind_to_json sk_json list

let json_to_file json file = let chan = open_out file in Ezjsonm . to_channel ~ minify : false chan json ; close_out chan

let alias_pkh_pk_list = [ ( " foundation1 " , " tz3RDC3Jdn4j15J7bBHZd29EUee9gVB1CxD9 " , " p2pk67wVncLFS1DQDm2gVR45sYCzQSXTtqn3bviNYXVCq6WRoqtxHXL " ) ; ( " foundation2 " , " tz3bvNMQ95vfAYtG8193ymshqjSvmxiCUuR5 " , " p2pk66n1NmhPDEkcf9sXEKe9kBoTwBoTYxke1hx16aTRVq8MoXuwNqo " ) ; ( " foundation3 " , " tz3RB4aoyjov4KEVRbuhvQ1CKJgBJMWhaeB8 " , " p2pk67NECc8vGK4eLbXGEgBZGhk53x1pCMbgnFEgLxZEMGDtzVcFQok " ) ; ( " foundation4 " , " tz3bTdwZinP8U1JmSweNzVKhmwafqWmFWRfk " , " p2pk6796esaR3dNr8jUx8S7xxZdRvpYSrhHMg6NagjwMRJHsERMiUKM " ) ; ( " foundation5 " , " tz3NExpXn9aPNZPorRE4SdjJ2RGrfbJgMAaV " , " p2pk66iTZwLmRPshQgUr2HE3RUzSFwAN5MNaBQ5rfduT1dGKXd25pNN " ) ; ( " foundation6 " , " tz3UoffC7FG7zfpmvmjUmUeAaHvzdcUvAj6r " , " p2pk65ffAqpYT6Et73DXdNqudthwmSNzNyzL3Wdn2EYuiiMwoPu6vFJ " ) ; ( " foundation7 " , " tz3WMqdzXqRWXwyvj5Hp2H7QEepaUuS7vd9K " , " p2pk67Cwb5Ke6oSmqeUbJxURXMe3coVnH9tqPiB2xD84CYhHbBKs4oM " ) ; ( " foundation8 " , " tz3VEZ4k6a4Wx42iyev6i2aVAptTRLEAivNN " , " p2pk67uapBxwkM1JNasGJ6J3rozzYELgrtcqxKZwZLjvsr4XcAr4FqC " ) ; ]

let get_delegates ( proto : protocol ) context ( header : Block_header . shell_header ) active_bakers_only = let open Lwt_tzresult_syntax in let level = header . Block_header . level in let predecessor_timestamp = header . timestamp in let timestamp = Time . Protocol . add predecessor_timestamp 10000L in let fitness = header . fitness in match proto with | Florence -> let open Tezos_protocol_009_PsFLoren . Protocol in let * ( ctxt , _ ) = let *! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp ~ fitness in Lwt . return @@ Environment . wrap_tzresult r in let * delegates = Alpha_context . Delegate . fold ctxt ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let *! r = Alpha_context . Roll . delegate_pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let *? acc = acc in let * staking_balance = let *! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let * b = let *! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with | true -> return acc | false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates | Granada -> let open Tezos_protocol_010_PtGRANAD . Protocol in let * ( ctxt , _ , _ ) = let *! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp ~ fitness in Lwt . return @@ Environment . wrap_tzresult r in let * delegates = Alpha_context . Delegate . fold ctxt ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let *! r = Alpha_context . Roll . delegate_pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let *? acc = acc in let * staking_balance = let *! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let * b = let *! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with | true -> return acc | false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates | Hangzhou -> let open Tezos_protocol_011_PtHangz2 . Protocol in let * ( ctxt , _ , _ ) = let *! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp ~ fitness in Lwt . return @@ Environment . wrap_tzresult r in let * delegates = Alpha_context . Delegate . fold ctxt ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let *! r = Alpha_context . Roll . delegate_pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let *? acc = acc in let * staking_balance = let *! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let * b = let *! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with | true -> return acc | false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates | Ithaca -> let open Tezos_protocol_012_Psithaca . Protocol in let * ( ctxt , _ , _ ) = let *! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp in Lwt . return @@ Environment . wrap_tzresult r in let * delegates = Alpha_context . Delegate . fold ctxt ~ order ` : Sorted ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let *! r = Alpha_context . Delegate . pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let *? acc = acc in let * staking_balance = let *! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let * b = let *! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with | true -> return acc | false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates | Alpha -> let open Tezos_protocol_alpha . Protocol in let * ( ctxt , _ , _ ) = let *! r = Alpha_context . prepare context ~ level ~ predecessor_timestamp ~ timestamp in Lwt . return @@ Environment . wrap_tzresult r in let * delegates = Alpha_context . Delegate . fold ctxt ~ order ` : Sorted ~ init ( : ok [ ] ) ~ f ( : fun pkh acc -> let * pk = let *! r = Alpha_context . Delegate . pubkey ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in let *? acc = acc in let * staking_balance = let *! r = Alpha_context . Delegate . staking_balance ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in if active_bakers_only then let * b = let *! r = Alpha_context . Delegate . deactivated ctxt pkh in Lwt . return @@ Environment . wrap_tzresult r in match b with | true -> return acc | false -> return ( ( pkh , pk , staking_balance ) :: acc ) else return ( ( pkh , pk , staking_balance ) :: acc ) ) in return @@ List . map ( fun ( pkh , pk , _ ) -> ( pkh , pk ) ) @@ List . sort ( fun ( _ , _ , x ) ( _ , _ , y ) -> Alpha_context . Tez . compare y x ) delegates

let protocol_of_hash protocol_hash = if Protocol_hash . equal protocol_hash Tezos_protocol_009_PsFLoren . Protocol . hash then Some Florence else if Protocol_hash . equal protocol_hash Tezos_protocol_010_PtGRANAD . Protocol . hash then Some Granada else if Protocol_hash . equal protocol_hash Tezos_protocol_011_PtHangz2 . Protocol . hash then Some Hangzhou else if Protocol_hash . equal protocol_hash Tezos_protocol_012_Psithaca . Protocol . hash then Some Ithaca else if Protocol_hash . equal protocol_hash Tezos_protocol_alpha . Protocol . hash then Some Alpha else None

let load_mainnet_bakers_public_keys base_dir active_bakers_only = let open Lwt_tzresult_syntax in let open Tezos_store in let mainnet_genesis = { Genesis . time = Time . Protocol . of_notation_exn " 2018 - 06 - 30T16 : 07 : 32Z " ; block = Block_hash . of_b58check_exn " BLockGenesisGenesisGenesisGenesisGenesisf79b5d1CoW2 " ; protocol = Protocol_hash . of_b58check_exn " Ps9mPmXaRzmzk35gbAYNCAw6UXdE2qoABTHbN2oEEc1qM7CwT9P " ; } in let * store = Tezos_store . Store . init ~ store_dir ( : Filename . concat base_dir " store " ) ~ context_dir ( : Filename . concat base_dir " context " ) ~ allow_testchains : true ~ readonly : true mainnet_genesis in let main_chain_store = Store . main_chain_store store in let *! block = Tezos_store . Store . Chain . current_head main_chain_store in Format . printf " Head block found and loaded ( % a ) . " @ Block_hash . pp ( Tezos_store . Store . Block . hash block ) ; let header = Store . Block . header block in let *! context = let *! r = Store . Block . context_exn main_chain_store block in Lwt . return @@ Tezos_shell_context . Shell_context . wrap_disk_context r in let *! protocol_hash = Store . Block . protocol_hash_exn main_chain_store block in let header = header . shell in let * delegates = match protocol_of_hash protocol_hash with | None -> Error_monad . failwith " unknown protocol hash " | Some protocol -> Format . printf " Protocol % a detected . " @ pp_protocol protocol ; get_delegates protocol context header active_bakers_only in let *! ( ) = Tezos_store . Store . close_store store in return @@ List . mapi ( fun i ( pkh , pk ) -> let pkh = Signature . Public_key_hash . to_b58check pkh in let pk = Signature . Public_key . to_b58check pk in let alias = List . find_map ( fun ( alias , pkh ' , _ ) -> if String . equal pkh ' pkh then Some alias else None ) alias_pkh_pk_list in let alias = Option . value ~ default ( : Format . asprintf " baker_ % d " i ) alias in ( alias , pkh , pk ) ) delegates

let load_mainnet_bakers_public_keys base_dir active_bakers_only = match Lwt_main . run ( load_mainnet_bakers_public_keys base_dir active_bakers_only ) with | Ok alias_pkh_pk_list -> alias_pkh_pk_list | Error trace -> Format . eprintf " error . :@% a . " @ Error_monad . pp_print_trace trace ; exit 1

type t = { month_count : int }

let equal ( x : t ) ( y : t ) = x . month_count = y . month_count

let lt ( x : t ) ( y : t ) = x . month_count < y . month_count

let le ( x : t ) ( y : t ) = x . month_count <= y . month_count

let gt ( x : t ) ( y : t ) = x . month_count > y . month_count

let ge ( x : t ) ( y : t ) = x . month_count >= y . month_count

let compare ( x : t ) ( y : t ) = compare x . month_count y . month_count

let month_count_of_ym ~ year ~ month = ( year * 12 ) + ( month - 1 )

let ym_of_month_count month_count = if month_count >= 0 then ( month_count / 12 , ( month_count mod 12 ) + 1 ) else ( ( month_count - 11 ) / 12 , ( ( ( month_count mod 12 ) + 12 ) mod 12 ) + 1 )

type error = [ ` Does_not_exist | ` Invalid_year of int | ` Invalid_month of int ]

let make ~ year ~ month : ( t , error ) result = if year < Constants . min_year || Constants . max_year < year then Error ( ` Invalid_year year ) else if month < 1 || 12 < month then Error ( ` Invalid_month month ) else Ok { month_count = month_count_of_ym ~ year ~ month }

let make_exn ~ year ~ month : t = match make ~ year ~ month with Error e -> raise ( Error_exn e ) | Ok x -> x

let sub_month_count ( t : t ) n : t = { month_count = t . month_count - n }

let sub ( ? years = 0 ) ( ? months = 0 ) t : t = sub_month_count t ( ( years * 12 ) + months )

let add_month_count ( t : t ) n : t = { month_count = t . month_count + n }

let add ( ? years = 0 ) ( ? months = 0 ) t : t = add_month_count t ( ( years * 12 ) + months )

let diff_months t1 t2 = t1 . month_count - t2 . month_count

let year_month ( t : t ) : int * int = ym_of_month_count t . month_count

let year ( t : t ) : int = fst @@ year_month t

let month ( t : t ) : int = snd @@ year_month t

module Alco = struct let lt_case0 ( ) = Alcotest . ( check bool ) " less than " true Timedesc . Ym . ( lt ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 2 ) ) let lt_case1 ( ) = Alcotest . ( check bool ) " less than " false Timedesc . Ym . ( lt ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let lt_case2 ( ) = Alcotest . ( check bool ) " less than " false Timedesc . Ym . ( lt ( make_exn ~ year : 2000 ~ month : 2 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let le_case0 ( ) = Alcotest . ( check bool ) " less than or equal to " true Timedesc . Ym . ( le ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 2 ) ) let le_case1 ( ) = Alcotest . ( check bool ) " less than or equal to " true Timedesc . Ym . ( le ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let le_case2 ( ) = Alcotest . ( check bool ) " less than or equal to " false Timedesc . Ym . ( le ( make_exn ~ year : 2000 ~ month : 2 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let gt_case0 ( ) = Alcotest . ( check bool ) " greater than or equal to " true Timedesc . Ym . ( gt ( make_exn ~ year : 2000 ~ month : 2 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let gt_case1 ( ) = Alcotest . ( check bool ) " greater than or equal to " false Timedesc . Ym . ( gt ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let gt_case2 ( ) = Alcotest . ( check bool ) " greater than or equal to " false Timedesc . Ym . ( gt ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 2 ) ) let ge_case0 ( ) = Alcotest . ( check bool ) " greater than or equal to " true Timedesc . Ym . ( ge ( make_exn ~ year : 2000 ~ month : 2 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let ge_case1 ( ) = Alcotest . ( check bool ) " greater than or equal to " true Timedesc . Ym . ( ge ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 1 ) ) let ge_case2 ( ) = Alcotest . ( check bool ) " greater than or equal to " false Timedesc . Ym . ( ge ( make_exn ~ year : 2000 ~ month : 1 ) ( make_exn ~ year : 2000 ~ month : 2 ) ) let of_iso8601_case0 ( ) = Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . of_iso8601_exn " 1977 - 06 " ) ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 6 ) let wrap_around_case0 ( ) = let y = Timedesc . Ym . add ~ months : 1 ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 12 ) in Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . make_exn ~ year : 1978 ~ month : 1 ) y let wrap_around_case1 ( ) = let y = Timedesc . Ym . add ~ months : 13 ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 12 ) in Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . make_exn ~ year : 1979 ~ month : 1 ) y let wrap_around_case2 ( ) = let y = Timedesc . Ym . sub ~ months : 1 ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 1 ) in Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . make_exn ~ year : 1976 ~ month : 12 ) y let wrap_around_case3 ( ) = let y = Timedesc . Ym . sub ~ months : 13 ( Timedesc . Ym . make_exn ~ year : 1977 ~ month : 1 ) in Alcotest . ( check ym_testable ) " same date " ( Timedesc . Ym . make_exn ~ year : 1975 ~ month : 12 ) y let suite = [ Alcotest . test_case " lt_case0 " ` Quick lt_case0 ; Alcotest . test_case " lt_case1 " ` Quick lt_case1 ; Alcotest . test_case " lt_case2 " ` Quick lt_case2 ; Alcotest . test_case " le_case0 " ` Quick le_case0 ; Alcotest . test_case " le_case1 " ` Quick le_case1 ; Alcotest . test_case " le_case2 " ` Quick le_case2 ; Alcotest . test_case " gt_case0 " ` Quick gt_case0 ; Alcotest . test_case " gt_case1 " ` Quick gt_case1 ; Alcotest . test_case " gt_case2 " ` Quick gt_case2 ; Alcotest . test_case " ge_case0 " ` Quick ge_case0 ; Alcotest . test_case " ge_case1 " ` Quick ge_case1 ; Alcotest . test_case " ge_case2 " ` Quick ge_case2 ; Alcotest . test_case " of_iso8601_case0 " ` Quick of_iso8601_case0 ; Alcotest . test_case " wrap_around_case0 " ` Quick wrap_around_case0 ; Alcotest . test_case " wrap_around_case1 " ` Quick wrap_around_case1 ; Alcotest . test_case " wrap_around_case2 " ` Quick wrap_around_case2 ; Alcotest . test_case " wrap_around_case3 " ` Quick wrap_around_case3 ; ] end

module Qc = struct let to_iso8601_of_iso8601 = QCheck . Test . make ~ count : 100_000 ~ name " : to_iso8601_of_iso8601 " ym ( fun ( year , month ) -> let d = Timedesc . Ym . make_exn ~ year ~ month in let d ' = d |> Timedesc . Ym . to_iso8601 |> Timedesc . Ym . of_iso8601 |> CCResult . get_exn in Timedesc . Ym . equal d d ' ) let add_identity = QCheck . Test . make ~ count : 100_000 ~ name " : add_identity " ym ( fun ( year , month ) -> let x = Timedesc . Ym . make_exn ~ year ~ month in Timedesc . Ym . ( equal ( add ~ months : 0 x ) x ) ) let sub_identity = QCheck . Test . make ~ count : 100_000 ~ name " : sub_identity " ym ( fun ( year , month ) -> let x = Timedesc . Ym . make_exn ~ year ~ month in Timedesc . Ym . ( equal ( sub ~ months : 0 x ) x ) ) let add_sub = QCheck . Test . make ~ count : 100_000 ~ name " : add_sub " QCheck . ( pair ym small_int ) ( fun ( ( year , month ) , y ) -> let x = Timedesc . Ym . make_exn ~ year ~ month in Timedesc . Ym . ( equal x ( sub ~ months : y ( add ~ months : y x ) ) ) ) let sub_add = QCheck . Test . make ~ count : 100_000 ~ name " : sub_add " QCheck . ( pair ym small_int ) ( fun ( ( year , month ) , y ) -> let x = Timedesc . Ym . make_exn ~ year ~ month in Timedesc . Ym . ( equal x ( add ~ months : y ( sub ~ months : y x ) ) ) ) let add_diff = QCheck . Test . make ~ count : 100_000 ~ name " : add_diff " QCheck . ( pair ym iso_week ) ( fun ( ( year_x , month_x ) , ( year_y , month_y ) ) -> let x = Timedesc . Ym . make_exn ~ year : year_x ~ month : month_x in let y = Timedesc . Ym . make_exn ~ year : year_y ~ month : month_y in let diff = Timedesc . Ym . diff_months x y in Timedesc . Ym . ( equal x ( add ~ months : diff y ) ) ) let sub_diff = QCheck . Test . make ~ count : 100_000 ~ name " : sub_diff " QCheck . ( pair ym iso_week ) ( fun ( ( year_x , month_x ) , ( year_y , month_y ) ) -> let x = Timedesc . Ym . make_exn ~ year : year_x ~ month : month_x in let y = Timedesc . Ym . make_exn ~ year : year_y ~ month : month_y in let diff = Timedesc . Ym . diff_months x y in Timedesc . Ym . ( equal y ( sub ~ months : diff x ) ) ) let suite = [ to_iso8601_of_iso8601 ; add_identity ; sub_identity ; add_sub ; sub_add ; add_diff ; sub_diff ; ] end

module Pretty = struct end

module Util = struct # include " util . ml " end end

module Raw = struct end

let rec biniou_of_json = function ` Null -> ` Unit | ` Bool b -> ` Bool b | ` Int i -> ` Svint i | ` Intlit i -> failwith " Cannot convert big int to biniou " | ` Float f -> ` Float64 f | ` String s -> ` String s | ` Assoc l -> let a = Array . map ( fun ( s , x ) -> ( Some s , Bi_io . hash_name s , biniou_of_json x ) ) ( Array . of_list l ) in ` Record a | ` List l -> ( match l with [ ] -> ` Array None | l -> let a = Array . map biniou_of_json ( Array . of_list l ) in let tag = Bi_io . tag_of_tree a . ( 0 ) in try for i = 1 to Array . length a - 1 do if Bi_io . tag_of_tree a . ( i ) <> tag then raise Exit done ; ` Array ( Some ( tag , a ) ) with Exit -> failwith " Cannot convert heterogenous array to biniou " ) | ` Tuple l -> ` Tuple ( Array . map biniou_of_json ( Array . of_list l ) ) | ` Variant ( s , o ) -> let o = match o with None -> None | Some x -> Some ( biniou_of_json x ) in ` Variant ( Some s , Bi_io . hash_name s , o )

let rec json_of_biniou ( x : Bi_io . tree ) = match x with ` Unit -> ` Null | ` Bool b -> ` Bool b | ` Int8 _ -> failwith " Cannot convert int8 to JSON " | ` Int16 _ -> failwith " Cannot convert int16 to JSON " | ` Int32 _ -> failwith " Cannot convert int32 to JSON " | ` Int64 _ -> failwith " Cannot convert int64 to JSON " | ` Float32 f | ` Float64 f -> ` Float f | ` Uvint i -> failwith " Cannot convert uvint to JSON " | ` Svint i -> ` Int i | ` String s -> ` String s | ` Array None -> ` List [ ] | ` Array ( Some ( _ , a ) ) -> ` List ( Array . to_list ( Array . map json_of_biniou a ) ) | ` Tuple a -> ` Tuple ( Array . to_list ( Array . map json_of_biniou a ) ) | ` Record a -> ` Assoc ( Array . to_list ( Array . map ( function ( Some s , _ , x ) -> ( s , json_of_biniou x ) | ( None , _ , _ ) -> failwith " Cannot convert hashed field name to JSON " ) a ) ) | ` Num_variant _ -> failwith " Cannot convert num_variant to JSON " | ` Variant ( Some s , _ , Some x ) -> ` Variant ( s , Some ( json_of_biniou x ) ) | ` Variant ( Some s , _ , None ) -> ` Variant ( s , None ) | ` Variant ( None , _ , _ ) -> failwith " Cannot convert hashed variant name to JSON " | ` Table None -> ` List [ ] | ` Table ( Some ( header , rows ) ) -> ` List ( Array . to_list ( Array . map ( json_of_row header ) rows ) ) | ` Shared _ -> failwith " Cannot convert shared node to JSON " let n = Array . length header in if Array . length a <> n then failwith " Malformed biniou table " ; let l = ref [ ] in for i = n - 1 downto 0 do let o , _ , _ = header . ( i ) in let x = a . ( i ) in match o with None -> failwith " Cannot convert hashed field name to JSON " | Some s -> l := ( s , json_of_biniou x ) :: ! l done ; ` Assoc ! l

let ( ) = let json_str = Yojson_unittest_yojson . encode_test test |> Yojson . Basic . to_string in print_endline json_str ; let test ' = json_str |> Yojson . Basic . from_string |> Yojson_unittest_yojson . decode_test in assert ( asserttest = test ' ) test ' ; ( )

let ( ) = print_endline " \ nConsistency tests . . . Ok "

let ( ) = let ic = let filename = " yojson . data " in open_in filename in let buffer_len = 1024 * 1024 in let buffer = Bytes . create buffer_len in let buffer_len = match input ic buffer 0 buffer_len with | i when i < buffer_len -> i | _ -> assert ( assertfalse ) assertfalse in let test ' = Bytes . sub_string buffer 0 buffer_len |> Yojson . Basic . from_string |> Yojson_unittest_yojson . decode_test in let open Yojson_unittest_types in assert ( asserttest ' . all_basic_types = test . all_basic_types ) all_basic_types ; assert ( asserttest ' . test_enum0 = test . test_enum0 ) test_enum0 ; assert ( asserttest ' . test_enum1 = test . test_enum1 ) test_enum1 ; assert ( asserttest ' . test_enum2 = test . test_enum2 ) test_enum2 ; assert ( asserttest ' . single_one_of_string = test . single_one_of_string ) single_one_of_string ; assert ( asserttest ' . single_one_of_int = test . single_one_of_int ) single_one_of_int ; assert ( asserttest ' . single_one_of_enum = test . single_one_of_enum ) single_one_of_enum ; assert ( asserttest ' . single_one_of_small_message = test . single_one_of_small_message ) single_one_of_small_message ; assert ( asserttest ' . single_one_of_recursive = test . single_one_of_recursive ) single_one_of_recursive ; print_endline " \ nConformance tests . . . Ok " ; ( )

type bbox = { xmin : float ; ymin : float ; xmax : float ; ymax : float ; confidence : float ; class_index : int ; class_confidence : float }

let iou b1 b2 = let b1_area = ( b1 . xmax . - b1 . xmin . + 1 . ) . * ( b1 . ymax . - b1 . ymin . + 1 . ) in let b2_area = ( b2 . xmax . - b2 . xmin . + 1 . ) . * ( b2 . ymax . - b2 . ymin . + 1 . ) in let i_xmin = Float . max b1 . xmin b2 . xmin in let i_xmax = Float . min b1 . xmax b2 . xmax in let i_ymin = Float . max b1 . ymin b2 . ymin in let i_ymax = Float . min b1 . ymax b2 . ymax in let i_area = Float . max 0 . ( i_xmax . - i_xmin . + 1 . ) . * Float . max 0 . ( i_ymax . - i_ymin . + 1 . ) in i_area . / ( b1_area . + b2_area . - i_area )

let colors = [ | [ | 0 . 5 ; 0 . 0 ; 0 . 5 ] | ; [ | 0 . 0 ; 0 . 5 ; 0 . 5 ] | ; [ | 0 . 5 ; 0 . 5 ; 0 . 0 ] | ; [ | 0 . 7 ; 0 . 3 ; 0 . 0 ] | ; [ | 0 . 7 ; 0 . 0 ; 0 . 3 ] | ; [ | 0 . 0 ; 0 . 7 ; 0 . 3 ] | ; [ | 0 . 3 ; 0 . 7 ; 0 . 0 ] | ; [ | 0 . 3 ; 0 . 0 ; 0 . 7 ] | ; [ | 0 . 0 ; 0 . 3 ; 0 . 7 ] | ] |

let report predictions ~ image ~ width ~ height = Tensor . print_shape ~ name " : predictions " predictions ; let bboxes = List . init ( Tensor . shape2_exn predictions |> fst ) ~ f ( : fun index -> let predictions = Tensor . get predictions index |> Tensor . to_float1_exn in let confidence = predictions . ( 4 ) in if Float . ( > ) confidence confidence_threshold then ( let xmin = predictions . ( 0 ) . - ( predictions . ( 2 ) . / 2 . ) in let ymin = predictions . ( 1 ) . - ( predictions . ( 3 ) . / 2 . ) in let xmax = predictions . ( 0 ) . + ( predictions . ( 2 ) . / 2 . ) in let ymax = predictions . ( 1 ) . + ( predictions . ( 3 ) . / 2 . ) in let best_class_index = Array . foldi predictions ~ init : 5 ~ f ( : fun index max_index v -> if index > 5 && Float . ( < ) predictions . ( max_index ) v then index else max_index ) in let class_confidence = predictions . ( best_class_index ) in let class_index = best_class_index - 5 in if Float . ( > ) class_confidence 0 . then Some { confidence ; xmin ; ymin ; xmax ; ymax ; class_index ; class_confidence } else None ) else None ) |> List . filter_opt in let bboxes = List . map bboxes ~ f ( : fun bbox -> bbox . class_index , ( bbox . confidence , bbox ) ) |> Map . of_alist_multi ( module Int ) |> Map . to_alist |> List . concat_map ~ f ( : fun ( _ , bboxes ) -> let bboxes = List . sort bboxes ~ compare : Caml . compare |> List . rev_map ~ f : snd in List . fold bboxes ~ init [ ] : ~ f ( : fun acc_bboxes bbox -> let drop = List . exists acc_bboxes ~ f ( : fun b -> Float . ( > ) ( iou b bbox ) nms_threshold ) in if drop then acc_bboxes else bbox :: acc_bboxes ) ) in let image = Tensor . ( to_type image ~ type_ ( : T Float ) / f 255 . ) in let _ , _ , initial_height , initial_width = Tensor . shape4_exn image in let resize_and_clamp v ~ initial_max ~ max = Int . of_float ( v . * Float . of_int initial_max . / Float . of_int max ) |> Int . max 0 |> Int . min ( initial_max - 1 ) in List . iter bboxes ~ f ( : fun b -> let xmin = resize_and_clamp b . xmin ~ initial_max : initial_width ~ max : width in let xmax = resize_and_clamp b . xmax ~ initial_max : initial_width ~ max : width in let ymin = resize_and_clamp b . ymin ~ initial_max : initial_height ~ max : height in let ymax = resize_and_clamp b . ymax ~ initial_max : initial_height ~ max : height in let color = colors . ( b . class_index % Array . length colors ) in let color = Tensor . ( of_float1 color |> reshape ~ shape [ : 1 ; 3 ; 1 ; 1 ] ) in let draw_rect xmin xmax ymin ymax = Tensor . narrow image ~ dim : 3 ~ start : xmin ~ length ( : xmax - xmin ) |> Tensor . narrow ~ dim : 2 ~ start : ymin ~ length ( : ymax - ymin ) |> Tensor . copy_ ~ src : color in draw_rect xmin xmax ymin ( Int . min ( ymin + 2 ) ymax ) ; draw_rect xmin xmax ( Int . max ymin ( ymax - 2 ) ) ymax ; draw_rect ( Int . max xmin ( xmax - 2 ) ) xmax ymin ymax ; draw_rect xmin ( Int . min ( xmin + 2 ) xmax ) ymin ymax ; Stdio . printf " % s . % 2f . % 2f ( % d % d % d % d ) \ n " %! classes . ( b . class_index ) b . confidence b . class_confidence xmin xmax ymin ymax ) ; Image . write_image Tensor . ( image * f 255 . ) ~ filename " : output . jpg "

let ( ) = let module Sys = Caml . Sys in if Array . length Sys . argv <> 3 then Printf . failwithf " usage : % s yolo - v3 . ot input . png " Sys . argv . ( 0 ) ( ) ; let vs = Var_store . create ~ name " : rn " ~ device : Cpu ( ) in let darknet = Darknet . parse_config config_filename in let model = Darknet . build_model vs darknet in Stdio . printf " Loading weights from % s \ n " %! Sys . argv . ( 1 ) ; Serialize . load_multi_ ~ named_tensors ( : Var_store . all_vars vs ) ~ filename : Sys . argv . ( 1 ) ; let width , height = Darknet . width darknet , Darknet . height darknet in let image = Image . load_image Sys . argv . ( 2 ) |> Or_error . ok_exn in let resized_image = Image . resize image ~ width ~ height in let resized_image = Tensor . ( to_type resized_image ~ type_ ( : T Float ) / f 255 . ) in let predictions = Layer . forward_ model resized_image ~ is_training : false in Tensor . squeeze predictions |> report ~ image ~ width ~ height

type ( ' a , ' b ) ' b exec = ( ' a , unit , string , ' b ) ' b format4 -> ' a

let env = Hashtbl . create 8

let shell_set = ref " "

let suppress_failure = ref false

let last_status = ref 0

let export k v = Hashtbl . replace env k ( Some v ) v

let set opts = shell_set := opts

let unset k = Hashtbl . replace env k None

let getenv_default var default = try Sys . getenv var with Not_found -> default

let q = Printf . sprintf " " \% s " " \

let ql = map q

let split_char_bounded str ~ on ~ max = let open String in if str = " " then [ ] else if max = 1 then [ str ] str else let rec loop offset tokens = if tokens = max - 1 then [ sub str offset ( length str - offset ) offset ] offset else try let index = index_from str offset on in if index = offset then ( " " :: loop ( offset + 1 ) 1 ( tokens + 1 ) 1 ) 1 else let token = String . sub str offset ( index - offset ) offset in token ( :: loop ( index + 1 ) 1 ( tokens + 1 ) 1 ) 1 with Not_found -> [ sub str offset ( length str - offset ) offset ] offset in loop 0 0

let split_char_unbounded_no_trailer str ~ on = let open String in if str = " " then [ ] else let rec loop acc offset = try begin let index = rindex_from str offset on in if index = offset then loop acc ( index - 1 ) 1 else let token = sub str ( index + 1 ) 1 ( offset - index ) index in loop ( token :: acc ) acc ( index - 1 ) 1 end with Not_found -> ( sub str 0 ( offset + 1 ) 1 ) 1 :: acc in loop [ ] ( length str - 1 ) 1

let some = function " " -> None | x -> Some x

let list = split_char_unbounded_no_trailer ~ on : ' '

let lines = let rm_trailing_CR s = let len = String . length s in if len > 0 && s [ . len - 1 ] 1 = ' \ r ' then String . sub s 0 ( len - 1 ) 1 else s in fun str -> let l = split_char_unbounded_no_trailer ~ on : ' \ n ' str in List . map rm_trailing_CR l

let pair s = match split_char_bounded s ~ on : ' : ' ~ max : 2 with | [ ] -> ( " " , None ) None | [ x ] x -> ( x , None ) None | x :: y :: _ -> ( x , Some y ) y

let fuzzy_bool_of_string s = match String . lowercase s with | " false " | " 0 " -> false | _ -> true

let echo fmt = Printf . ksprintf print_endline fmt

let is_space = function ' ' | ' \ 012 ' | ' \ n ' | ' \ r ' | ' \ t ' -> true | _ -> false

let trim s = let open String in let len = length s in let i = ref 0 in while ! i < len && is_space ( unsafe_get s ! i ) i do incr i done ; let j = ref ( len - 1 ) 1 in while ! j >= ! i && is_space ( unsafe_get s ! j ) j do decr j done ; if ! j >= ! i then sub s ! i ( ! j - ! i + 1 ) 1 else " "

let escape_unprintable s = let must_not_escape = ref true in let i = ref 0 in while ! i < String . length s && ! must_not_escape do if s [ . ! i ] i < ' ' then must_not_escape := false ; incr i done ; if ! must_not_escape then s else ( let b = Buffer . create ( String . length s + 8 ) 8 in for i = 0 to String . length s - 1 do if s [ . i ] i < ' ' then Buffer . add_string b ( Char . escaped s [ . i ] i ) i else Buffer . add_char b s [ . i ] i done ; Buffer . contents b )

let same_fds f = Unix ( . f ~ stdin ~ stdout ~ stderr ) stderr

let shell command ~ stdin ~ stdout ~ stderr = Unix . create_process " sh " [ " | sh " ; " - c " ; command ] | stdin stdout stderr

let after pid = Unix ( . match waitpid [ ] pid with | ( _ , WEXITED k ) k -> last_status := k ; k | ( _ , WSIGNALED _ ) _ -> failwith " child unexpectedly signaled " | ( _ , WSTOPPED _ ) _ -> failwith " child unexpectedly stopped " )

let after_shell command ~ stdin ~ stdout ~ stderr = match after ( shell command ~ stdin ~ stdout ~ stderr ) stderr with | 0 -> ( ) | x -> if not ! suppress_failure then begin Printf . eprintf " ' % s ' exited % d . Terminating with % d \ n " ( escape_unprintable command ) command x x ; exit x end

module Quips = struct let ( *~ ) list sep = String . concat sep list let ( ) ~~ = format_of_string let apply_env command = let set = match ! shell_set with | " " -> " " | opts -> " set " ^ opts " ; ^ " in ( ( Hashtbl . fold ( fun k v list -> match v with | Some v -> ( k " " ^=^ v " ^ export " ^ k ) " ; " ^:: list | None -> ( " unset " ^ k ) " ; " ^:: list ) env [ ] ) *~ " ) " ^ set ^ command let ( ?| ) command = same_fds ( after_shell ( apply_env command ) command ) command let ( ) . ?| fmt = Printf . ksprintf ( ) ?| fmt let ( ) ?|~ fmt = Printf . ksprintf ( fun command -> print_string " \ 027 [ 02736m " ; print_string ( escape_unprintable command ) command ; print_endline " \ 027 [ 0270m " ; ?| command ) fmt let ( ) ?|> fmt = Printf . ksprintf ( fun command -> let buf = Buffer . create ( 5 * 80 ) 80 in let rstdout , stdout = Unix . pipe ( ) in Unix . set_close_on_exec rstdout ; let stdin = Unix . stdin in let stderr = Unix . stderr in after_shell ( apply_env command ) command ~ stdin ~ stdout ~ stderr ; Unix . close stdout ; let stdout = Unix . in_channel_of_descr rstdout in try while true do Buffer . add_channel buf stdout 1 done ; " " with End_of_file -> close_in stdout ; Buffer . contents buf ) fmt let ( ) !?? ( quip ( : ' a , ' b ) ' b exec ) exec fmt = Printf . ksprintf ( fun command -> suppress_failure := true ; let r = quip " % s " command in suppress_failure := false ; r ) fmt let ( ) !?* quip fmt = Printf . ksprintf ( fun command -> let r = !?? quip " % s " command in r , ! last_status ) fmt let ( ) ?|? fmt = Printf . ksprintf ( fun command -> !?? ( ) . ?| " % s " command ; ! last_status ) fmt let ( ) ?$ = function | " " @ -> List ( . ql ( tl ( Array . to_list Sys . argv ) argv ) argv ) argv *~ " " | " " ? -> string_of_int ! last_status | v -> match some ( getenv_default v ) " " with | Some v -> v | None -> Printf . eprintf " I don ' t know what variable ' % s ' means and I give up . \ n " v ; exit 1 end

let zero = Num . num_of_int 0

let of_int64 x = Num . num_of_big_int ( Big_int . big_int_of_int64 x )

let to_int64 x = Big_int . int64_of_big_int ( Num . big_int_of_num x )

let div_rem a b = Num . quo_num a b , Num . mod_num a b

let of_bits b = let n = ref ( Num . num_of_int 0 ) in let p = ref ( Num . num_of_int 1 ) in let f = Num . num_of_int 256 in for i = 0 to String . length b - 1 do let c = Char . code ( String . get b i ) in n := Num . add_num ! n ( Num . mult_num ! p ( Num . num_of_int c ) ) ; p := Num . mult_num ! p f ; done ; ! n

let to_bits n = let n = ref ( Num . abs_num n ) in let l = ref [ ] in let f = Num . num_of_int 256 in while Num . gt_num ! n zero do let d , r = div_rem ! n f in l := Char . unsafe_chr ( to_int r ) :: ! l ; n := d ; done ; let b = Bytes . create ( List . length ! l ) in List . iteri ( fun i c -> Bytes . set b i c ) ( List . rev ! l ) ; Bytes . unsafe_to_string b

let numbits x = assert false

let extract _ _ _ = assert false

let div x y = fst ( div_rem x y )

let sub x y = Num . sub_num x y

let desc e = e . desc