Spaces:
Paused
Paused
File size: 5,071 Bytes
122d3ff |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 |
import typing as t
if t.TYPE_CHECKING:
from .runtime import Undefined
class TemplateError(Exception):
"""Baseclass for all template errors."""
def __init__(self, message: t.Optional[str] = None) -> None:
super().__init__(message)
@property
def message(self) -> t.Optional[str]:
return self.args[0] if self.args else None
class TemplateNotFound(IOError, LookupError, TemplateError):
"""Raised if a template does not exist.
.. versionchanged:: 2.11
If the given name is :class:`Undefined` and no message was
provided, an :exc:`UndefinedError` is raised.
"""
# Silence the Python warning about message being deprecated since
# it's not valid here.
message: t.Optional[str] = None
def __init__(
self,
name: t.Optional[t.Union[str, "Undefined"]],
message: t.Optional[str] = None,
) -> None:
IOError.__init__(self, name)
if message is None:
from .runtime import Undefined
if isinstance(name, Undefined):
name._fail_with_undefined_error()
message = name
self.message = message
self.name = name
self.templates = [name]
def __str__(self) -> str:
return str(self.message)
class TemplatesNotFound(TemplateNotFound):
"""Like :class:`TemplateNotFound` but raised if multiple templates
are selected. This is a subclass of :class:`TemplateNotFound`
exception, so just catching the base exception will catch both.
.. versionchanged:: 2.11
If a name in the list of names is :class:`Undefined`, a message
about it being undefined is shown rather than the empty string.
.. versionadded:: 2.2
"""
def __init__(
self,
names: t.Sequence[t.Union[str, "Undefined"]] = (),
message: t.Optional[str] = None,
) -> None:
if message is None:
from .runtime import Undefined
parts = []
for name in names:
if isinstance(name, Undefined):
parts.append(name._undefined_message)
else:
parts.append(name)
parts_str = ", ".join(map(str, parts))
message = f"none of the templates given were found: {parts_str}"
super().__init__(names[-1] if names else None, message)
self.templates = list(names)
class TemplateSyntaxError(TemplateError):
"""Raised to tell the user that there is a problem with the template."""
def __init__(
self,
message: str,
lineno: int,
name: t.Optional[str] = None,
filename: t.Optional[str] = None,
) -> None:
super().__init__(message)
self.lineno = lineno
self.name = name
self.filename = filename
self.source: t.Optional[str] = None
# this is set to True if the debug.translate_syntax_error
# function translated the syntax error into a new traceback
self.translated = False
def __str__(self) -> str:
# for translated errors we only return the message
if self.translated:
return t.cast(str, self.message)
# otherwise attach some stuff
location = f"line {self.lineno}"
name = self.filename or self.name
if name:
location = f'File "{name}", {location}'
lines = [t.cast(str, self.message), " " + location]
# if the source is set, add the line to the output
if self.source is not None:
try:
line = self.source.splitlines()[self.lineno - 1]
except IndexError:
pass
else:
lines.append(" " + line.strip())
return "\n".join(lines)
def __reduce__(self): # type: ignore
# https://bugs.python.org/issue1692335 Exceptions that take
# multiple required arguments have problems with pickling.
# Without this, raises TypeError: __init__() missing 1 required
# positional argument: 'lineno'
return self.__class__, (self.message, self.lineno, self.name, self.filename)
class TemplateAssertionError(TemplateSyntaxError):
"""Like a template syntax error, but covers cases where something in the
template caused an error at compile time that wasn't necessarily caused
by a syntax error. However it's a direct subclass of
:exc:`TemplateSyntaxError` and has the same attributes.
"""
class TemplateRuntimeError(TemplateError):
"""A generic runtime error in the template engine. Under some situations
Jinja may raise this exception.
"""
class UndefinedError(TemplateRuntimeError):
"""Raised if a template tries to operate on :class:`Undefined`."""
class SecurityError(TemplateRuntimeError):
"""Raised if a template tries to do something insecure if the
sandbox is enabled.
"""
class FilterArgumentError(TemplateRuntimeError):
"""This error is raised if a filter was called with inappropriate
arguments
"""
|