/usr/lib/python3/dist-packages/libcpychecker/attributes.py is in gcc-python3-plugin 0.15-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | # Copyright 2011, 2012 David Malcolm <dmalcolm@redhat.com>
# Copyright 2011, 2012 Red Hat, Inc.
#
# This is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.
import gcc
from gccutils import check_isinstance
from libcpychecker.types import register_type_object
# Recorded attribute data, primed with some special-case knowledge about
# the code that Cython and SWIG generate:
fnnames_returning_borrowed_refs = set([
'__Pyx_GetStdout',
'SWIG_Python_ErrorType',
# returns a borrowed ref to one of the global exception objects
])
fnnames_setting_exception = set()
fnnames_setting_exception_on_negative_result = set()
# A dictionary mapping from fnname to set of argument indices:
stolen_refs_by_fnname = {}
def register_our_attributes():
# Callback, called by the gcc.PLUGIN_ATTRIBUTES event
# Handler for __attribute__((cpychecker_returns_borrowed_ref))
# and #ifdef WITH_CPYCHECKER_RETURNS_BORROWED_REF_ATTRIBUTE
def attribute_callback_for_returns_borrowed_ref(*args):
if 0:
print('attribute_callback_for_returns_borrowed_ref(%r)' % args)
check_isinstance(args[0], gcc.FunctionDecl)
fnname = args[0].name
fnnames_returning_borrowed_refs.add(fnname)
gcc.register_attribute('cpychecker_returns_borrowed_ref',
0, 0,
False, False, False,
attribute_callback_for_returns_borrowed_ref)
gcc.define_macro('WITH_CPYCHECKER_RETURNS_BORROWED_REF_ATTRIBUTE')
# Handler for __attribute__((cpychecker_steals_reference_to_arg(n)))
# and #ifdef WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE
def attribute_callback_for_steals_reference_to_arg(*args):
if 0:
print('attribute_callback_for_steals_reference_to_arg(%r)' % (args, ))
check_isinstance(args[0], gcc.FunctionDecl)
check_isinstance(args[1], gcc.IntegerCst)
fnname = args[0].name
argindex = int(args[1].constant)
if fnname in stolen_refs_by_fnname:
stolen_refs_by_fnname[fnname].add(argindex)
else:
stolen_refs_by_fnname[fnname] = set([argindex])
gcc.register_attribute('cpychecker_steals_reference_to_arg',
1, 1,
False, False, False,
attribute_callback_for_steals_reference_to_arg)
gcc.define_macro('WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE')
# Handler for __attribute__((cpychecker_type_object_for_struct(type)))
# and #ifdef WITH_CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF_ATTRIBUTE
def attribute_callback_type_object_for_typedef(*args):
if 0:
print('attribute_callback_type_object_for_typedef(%r)' % (args, ))
check_isinstance(args[0], gcc.VarDecl)
check_isinstance(args[1], gcc.StringCst)
typedef_name = args[1].constant
register_type_object(args[0], typedef_name)
gcc.register_attribute('cpychecker_type_object_for_typedef',
1, 1,
False, False, False,
attribute_callback_type_object_for_typedef)
gcc.define_macro('WITH_CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF_ATTRIBUTE')
# Handler for __attribute__((cpychecker_sets_exception))
# and #ifdef WITH_CPYCHECKER_SETS_EXCEPTION_ATTRIBUTE
def attribute_callback_for_sets_exception(*args):
if 0:
print('attribute_callback_for_sets_exception(%r)' % args)
check_isinstance(args[0], gcc.FunctionDecl)
fnname = args[0].name
fnnames_setting_exception.add(fnname)
gcc.register_attribute('cpychecker_sets_exception',
0, 0,
False, False, False,
attribute_callback_for_sets_exception)
gcc.define_macro('WITH_CPYCHECKER_SETS_EXCEPTION_ATTRIBUTE')
# Handler for __attribute__((cpychecker_negative_result_sets_exception))
# and #ifdef WITH_CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION_ATTRIBUTE
def attribute_callback_for_negative_result_sets_exception(*args):
if 0:
print('attribute_callback_for_negative_result_sets_exception(%r)' % args)
check_isinstance(args[0], gcc.FunctionDecl)
fnname = args[0].name
fnnames_setting_exception_on_negative_result.add(fnname)
gcc.register_attribute('cpychecker_negative_result_sets_exception',
0, 0,
False, False, False,
attribute_callback_for_negative_result_sets_exception)
gcc.define_macro('WITH_CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION_ATTRIBUTE')
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