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authormonster <monster@ydb.tech>2022-07-07 14:41:37 +0300
committermonster <monster@ydb.tech>2022-07-07 14:41:37 +0300
commit06e5c21a835c0e923506c4ff27929f34e00761c2 (patch)
tree75efcbc6854ef9bd476eb8bf00cc5c900da436a2 /contrib/tools/python3/src/Lib/codeop.py
parent03f024c4412e3aa613bb543cf1660176320ba8f4 (diff)
downloadydb-06e5c21a835c0e923506c4ff27929f34e00761c2.tar.gz
fix ya.make
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-rw-r--r--contrib/tools/python3/src/Lib/codeop.py153
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diff --git a/contrib/tools/python3/src/Lib/codeop.py b/contrib/tools/python3/src/Lib/codeop.py
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-r"""Utilities to compile possibly incomplete Python source code.
-
-This module provides two interfaces, broadly similar to the builtin
-function compile(), which take program text, a filename and a 'mode'
-and:
-
-- Return code object if the command is complete and valid
-- Return None if the command is incomplete
-- Raise SyntaxError, ValueError or OverflowError if the command is a
- syntax error (OverflowError and ValueError can be produced by
- malformed literals).
-
-The two interfaces are:
-
-compile_command(source, filename, symbol):
-
- Compiles a single command in the manner described above.
-
-CommandCompiler():
-
- Instances of this class have __call__ methods identical in
- signature to compile_command; the difference is that if the
- instance compiles program text containing a __future__ statement,
- the instance 'remembers' and compiles all subsequent program texts
- with the statement in force.
-
-The module also provides another class:
-
-Compile():
-
- Instances of this class act like the built-in function compile,
- but with 'memory' in the sense described above.
-"""
-
-import __future__
-import warnings
-
-_features = [getattr(__future__, fname)
- for fname in __future__.all_feature_names]
-
-__all__ = ["compile_command", "Compile", "CommandCompiler"]
-
-# The following flags match the values from Include/cpython/compile.h
-# Caveat emptor: These flags are undocumented on purpose and depending
-# on their effect outside the standard library is **unsupported**.
-PyCF_DONT_IMPLY_DEDENT = 0x200
-PyCF_ALLOW_INCOMPLETE_INPUT = 0x4000
-
-def _maybe_compile(compiler, source, filename, symbol):
- # Check for source consisting of only blank lines and comments.
- for line in source.split("\n"):
- line = line.strip()
- if line and line[0] != '#':
- break # Leave it alone.
- else:
- if symbol != "eval":
- source = "pass" # Replace it with a 'pass' statement
-
- try:
- return compiler(source, filename, symbol)
- except SyntaxError: # Let other compile() errors propagate.
- pass
-
- # Catch syntax warnings after the first compile
- # to emit warnings (SyntaxWarning, DeprecationWarning) at most once.
- with warnings.catch_warnings():
- warnings.simplefilter("error")
-
- try:
- compiler(source + "\n", filename, symbol)
- except SyntaxError as e:
- if "incomplete input" in str(e):
- return None
- raise
-
-def _is_syntax_error(err1, err2):
- rep1 = repr(err1)
- rep2 = repr(err2)
- if "was never closed" in rep1 and "was never closed" in rep2:
- return False
- if rep1 == rep2:
- return True
- return False
-
-def _compile(source, filename, symbol):
- return compile(source, filename, symbol, PyCF_DONT_IMPLY_DEDENT | PyCF_ALLOW_INCOMPLETE_INPUT)
-
-def compile_command(source, filename="<input>", symbol="single"):
- r"""Compile a command and determine whether it is incomplete.
-
- Arguments:
-
- source -- the source string; may contain \n characters
- filename -- optional filename from which source was read; default
- "<input>"
- symbol -- optional grammar start symbol; "single" (default), "exec"
- or "eval"
-
- Return value / exceptions raised:
-
- - Return a code object if the command is complete and valid
- - Return None if the command is incomplete
- - Raise SyntaxError, ValueError or OverflowError if the command is a
- syntax error (OverflowError and ValueError can be produced by
- malformed literals).
- """
- return _maybe_compile(_compile, source, filename, symbol)
-
-class Compile:
- """Instances of this class behave much like the built-in compile
- function, but if one is used to compile text containing a future
- statement, it "remembers" and compiles all subsequent program texts
- with the statement in force."""
- def __init__(self):
- self.flags = PyCF_DONT_IMPLY_DEDENT | PyCF_ALLOW_INCOMPLETE_INPUT
-
- def __call__(self, source, filename, symbol):
- codeob = compile(source, filename, symbol, self.flags, True)
- for feature in _features:
- if codeob.co_flags & feature.compiler_flag:
- self.flags |= feature.compiler_flag
- return codeob
-
-class CommandCompiler:
- """Instances of this class have __call__ methods identical in
- signature to compile_command; the difference is that if the
- instance compiles program text containing a __future__ statement,
- the instance 'remembers' and compiles all subsequent program texts
- with the statement in force."""
-
- def __init__(self,):
- self.compiler = Compile()
-
- def __call__(self, source, filename="<input>", symbol="single"):
- r"""Compile a command and determine whether it is incomplete.
-
- Arguments:
-
- source -- the source string; may contain \n characters
- filename -- optional filename from which source was read;
- default "<input>"
- symbol -- optional grammar start symbol; "single" (default) or
- "eval"
-
- Return value / exceptions raised:
-
- - Return a code object if the command is complete and valid
- - Return None if the command is incomplete
- - Raise SyntaxError, ValueError or OverflowError if the command is a
- syntax error (OverflowError and ValueError can be produced by
- malformed literals).
- """
- return _maybe_compile(self.compiler, source, filename, symbol)