/usr/share/pyshared/pygccxml/parser/patcher.py is in python-pygccxml 1.0.0-4.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 | # Copyright 2004-2008 Roman Yakovenko.
# Distributed under the Boost Software License, Version 1.0. (See
# accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
from pygccxml import utils
from pygccxml import declarations
class default_argument_patcher_t( object ):
def __init__( self, enums ):
object.__init__( self )
self.__enums = enums
def __call__(self, decl):
for arg in decl.arguments:
if not arg.default_value:
continue
fixer = self.__find_fixer( decl, arg )
if fixer:
arg.default_value = fixer( decl, arg )
def __find_fixer(self, func, arg):
if not arg.default_value:
return False
elif self.__is_unqualified_enum( func, arg ):
return self.__fix_unqualified_enum
elif self.__is_double_call( func, arg ):
return self.__fix_double_call
elif self.__is_invalid_integral( func, arg ):
return self.__fix_invalid_integral
elif self.__is_constructor_call( func, arg ):
return self.__fix_constructor_call
else:
return None
def __join_names( self, prefix, suffix ):
if prefix == '::':
return '::' + suffix
else:
return prefix + '::' + suffix
def __is_unqualified_enum(self, func, arg):
type_ = declarations.remove_reference( declarations.remove_cv( arg.type ) )
if not declarations.is_enum( type_ ):
return False
enum_type = declarations.enum_declaration( type_ )
return enum_type.has_value_name( arg.default_value )
def __fix_unqualified_enum( self, func, arg):
type_ = declarations.remove_reference( declarations.remove_cv( arg.type ) )
enum_type = declarations.enum_declaration( type_ )
return self.__join_names( enum_type.parent.decl_string, arg.default_value )
def __is_invalid_integral(self, func, arg):
type_ = declarations.remove_reference( declarations.remove_cv( arg.type ) )
if not declarations.is_integral( type_ ):
return False
try:
int( arg.default_value )
return False
except:
return True
def __fix_invalid_integral(self, func, arg):
try:
int( arg.default_value )
return arg.default_value
except:
pass
try:
int( arg.default_value, 16 )
if 64 == utils.get_architecture():
#on 64 bit architecture, gccxml reports 0fffff, which is valid number
#the problem is that in this case it is so buggy so pygccxml can not fix it
#users will have to fix the default value manually
return arg.default_value
default_value = arg.default_value.lower()
found_hex = filter( lambda ch: ch in 'abcdef', default_value )
if found_hex and not default_value.startswith( '0x' ):
int( '0x' + default_value, 16 )
return '0x' + default_value
except:
pass
#may be we deal with enum
parent = func.parent
while parent:
found = self.__find_enum( parent, arg.default_value )
if found:
if declarations.is_fundamental( arg.type ) and ' ' in arg.type.decl_string:
template = '(%s)(%s)'
else:
template = '%s(%s)'
return template % ( arg.type.decl_string
, self.__join_names( found.parent.decl_string, arg.default_value ) )
else:
parent = parent.parent
return arg.default_value
def __find_enum( self, scope, default_value ):
#this algorithm could be improved: it could take into account
#1. unnamed namespaced
#2. location within files
for enum in self.__enums:
if enum.parent is scope and enum.has_value_name( default_value ):
return enum
return None
def __is_double_call( self, func, arg ):
call_invocation = declarations.call_invocation
dv = arg.default_value
found1 = call_invocation.find_args( dv )
if found1 == call_invocation.NOT_FOUND:
return False
found2 = call_invocation.find_args( dv, found1[1] + 1 )
if found2 == call_invocation.NOT_FOUND:
return False
args1 = call_invocation.args( dv[ found1[0] : found1[1] + 1 ] )
args2 = call_invocation.args( dv[ found2[0] : found2[1] + 1 ] )
return len(args1) == len(args2)
def __fix_double_call( self, func, arg ):
call_invocation = declarations.call_invocation
dv = arg.default_value
found1 = call_invocation.find_args( dv )
found2 = call_invocation.find_args( dv, found1[1] + 1 )
#args1 = call_invocation.args( dv[ found1[0] : found1[1] + 1 ] )
args2 = call_invocation.args( dv[ found2[0] : found2[1] + 1 ] )
return call_invocation.join( dv[:found1[0]], args2 )
def __is_constructor_call( self, func, arg ):
#if '0.9' in func.compiler:
# return False
call_invocation = declarations.call_invocation
dv = arg.default_value
if not call_invocation.is_call_invocation( dv ):
return False
name = call_invocation.name( dv )
base_type = declarations.base_type( arg.type )
if not isinstance( base_type, declarations.declarated_t ):
return False
decl = base_type.declaration
return decl.name == name \
or ( isinstance( decl, declarations.class_t ) \
and name in map( lambda typedef: typedef.name, decl.aliases ) )
def __fix_constructor_call( self, func, arg ):
call_invocation = declarations.call_invocation
dv = arg.default_value
if not call_invocation.is_call_invocation( dv ):
return False
base_type = declarations.base_type( arg.type )
decl = base_type.declaration
name, args = call_invocation.split( dv )
if decl.name != name:
#we have some alias to the class
relevant_typedefs = filter( lambda typedef: typedef.name == name
, decl.aliases )
if 1 == len( relevant_typedefs ):
f_q_name = self.__join_names( declarations.full_name( relevant_typedefs[0].parent )
, name )
else:#in this case we can not say which typedef user uses:
f_q_name = self.__join_names( declarations.full_name( decl.parent )
, decl.name )
else:
f_q_name = self.__join_names( declarations.full_name( decl.parent ), name )
return call_invocation.join( f_q_name, args )
class casting_operator_patcher_t( object ):
def __init__( self ):
object.__init__( self )
def __call__(self, decl):
decl.name = 'operator ' + decl.return_type.decl_string
_casting_oper_patcher_ = casting_operator_patcher_t()
def fix_calldef_decls(decls, enums):
default_arg_patcher = default_argument_patcher_t(enums)
#decls should be flat list of all declarations, you want to apply patch on
for decl in decls:
default_arg_patcher( decl )
if isinstance( decl, declarations.casting_operator_t):
_casting_oper_patcher_( decl )
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