/usr/share/pygobject/2.0/codegen/override.py is in python-gobject-2-dev 2.28.6-13.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 | # -*- Mode: Python; py-indent-offset: 4 -*-
# this file contains code for loading up an override file. The override file
# provides implementations of functions where the code generator could not
# do its job correctly.
import fnmatch
import os
import re
import string
import sys
def class2cname(klass, method):
c_name = ''
for c in klass:
if c.isupper():
c_name += '_' + c.lower()
else:
c_name += c
return c_name[1:] + '_' + method
# import python_type as c_name [for arg_type]
# Last ('for') clause is optional. If present, the type will be
# imported only if given 'arg_type' is registered.
import_pat = re.compile(r'\s*import\s+(\S+)\.([^\s.]+)\s+as\s+(\S+)(\s+for\s+(\S+))?')
class Overrides:
def __init__(self, filename=None):
self.modulename = None
self.ignores = {}
self.glob_ignores = []
self.type_ignores = {}
self.overrides = {}
self.overridden = {}
self.kwargs = {}
self.noargs = {}
self.onearg = {}
self.staticmethod = {}
self.classmethod = {}
self.startlines = {}
self.override_attrs = {}
self.override_slots = {}
self.headers = ''
self.body = ''
self.init = ''
self.imports = []
self.defines = {}
self.functions = {}
self.newstyle_constructors = {}
self.dynamicnamespace = False
if filename:
self.handle_file(filename)
def handle_file(self, filename):
oldpath = os.getcwd()
fp = open(filename, 'r')
dirname = os.path.dirname(os.path.abspath(filename))
if dirname != oldpath:
os.chdir(dirname)
# read all the components of the file ...
bufs = []
startline = 1
lines = []
line = fp.readline()
linenum = 1
while line:
if line == '%%\n' or line == '%%':
if lines:
bufs.append((string.join(lines, ''), startline))
startline = linenum + 1
lines = []
else:
lines.append(line)
line = fp.readline()
linenum = linenum + 1
if lines:
bufs.append((string.join(lines, ''), startline))
if not bufs: return
for buf, startline in bufs:
self.__parse_override(buf, startline, filename)
os.chdir(oldpath)
def __parse_override(self, buffer, startline, filename):
pos = string.find(buffer, '\n')
if pos >= 0:
line = buffer[:pos]
rest = buffer[pos+1:]
else:
line = buffer ; rest = ''
words = string.split(line)
command = words[0]
if (command == 'ignore' or
command == 'ignore-' + sys.platform):
"ignore/ignore-platform [functions..]"
for func in words[1:]:
self.ignores[func] = 1
for func in string.split(rest):
self.ignores[func] = 1
elif (command == 'ignore-glob' or
command == 'ignore-glob-' + sys.platform):
"ignore-glob/ignore-glob-platform [globs..]"
for func in words[1:]:
self.glob_ignores.append(func)
for func in string.split(rest):
self.glob_ignores.append(func)
elif (command == 'ignore-type' or
command == 'ignore-type-' + sys.platform):
"ignore-type/ignore-type-platform [typenames..]"
for typename in words[1:]:
self.type_ignores[typename] = 1
for typename in string.split(rest):
self.type_ignores[typename] = 1
elif command == 'override':
"override function/method [kwargs|noargs|onearg] [staticmethod|classmethod]"
func = words[1]
if 'kwargs' in words[1:]:
self.kwargs[func] = 1
elif 'noargs' in words[1:]:
self.noargs[func] = 1
elif 'onearg' in words[1:]:
self.onearg[func] = True
if 'staticmethod' in words[1:]:
self.staticmethod[func] = True
elif 'classmethod' in words[1:]:
self.classmethod[func] = True
if func in self.overrides:
raise RuntimeError("Function %s is being overridden more than once" % (func,))
self.overrides[func] = rest
self.startlines[func] = (startline + 1, filename)
elif command == 'override-attr':
"override-slot Class.attr"
attr = words[1]
self.override_attrs[attr] = rest
self.startlines[attr] = (startline + 1, filename)
elif command == 'override-slot':
"override-slot Class.slot"
slot = words[1]
self.override_slots[slot] = rest
self.startlines[slot] = (startline + 1, filename)
elif command == 'headers':
"headers"
self.headers = '%s\n#line %d "%s"\n%s' % \
(self.headers, startline + 1, filename, rest)
elif command == 'body':
"body"
self.body = '%s\n#line %d "%s"\n%s' % \
(self.body, startline + 1, filename, rest)
elif command == 'init':
"init"
self.init = '%s\n#line %d "%s"\n%s' % \
(self.init, startline + 1, filename, rest)
elif command == 'modulename':
"modulename name"
self.modulename = words[1]
elif command == 'include':
"include filename"
for filename in words[1:]:
self.handle_file(filename)
for filename in string.split(rest):
self.handle_file(filename)
elif command == 'import':
"import module1 [\n module2, \n module3 ...]"
for line in string.split(buffer, '\n'):
match = import_pat.match(line)
if match:
module, pyname, cname, conditional, importing_for = match.groups()
self.imports.append((module, pyname, cname, importing_for or None))
elif command == 'define':
"define funcname [kwargs|noargs|onearg] [classmethod|staticmethod]"
"define Class.method [kwargs|noargs|onearg] [classmethod|staticmethod]"
func = words[1]
klass = None
if func.find('.') != -1:
klass, func = func.split('.', 1)
if not self.defines.has_key(klass):
self.defines[klass] = {}
self.defines[klass][func] = rest
else:
self.functions[func] = rest
if 'kwargs' in words[1:]:
self.kwargs[func] = 1
elif 'noargs' in words[1:]:
self.noargs[func] = 1
elif 'onearg' in words[1:]:
self.onearg[func] = 1
if 'staticmethod' in words[1:]:
self.staticmethod[func] = True
elif 'classmethod' in words[1:]:
self.classmethod[func] = True
self.startlines[func] = (startline + 1, filename)
elif command == 'new-constructor':
"new-constructor GType"
gtype, = words[1:]
self.newstyle_constructors[gtype] = True
elif command == 'options':
for option in words[1:]:
if option == 'dynamicnamespace':
self.dynamicnamespace = True
def is_ignored(self, name):
if self.ignores.has_key(name):
return 1
for glob in self.glob_ignores:
if fnmatch.fnmatchcase(name, glob):
return 1
return 0
def is_type_ignored(self, name):
return name in self.type_ignores
def is_overriden(self, name):
return self.overrides.has_key(name)
def is_already_included(self, name):
return self.overridden.has_key(name)
def override(self, name):
self.overridden[name] = 1
return self.overrides[name]
def define(self, klass, name):
self.overridden[class2cname(klass, name)] = 1
return self.defines[klass][name]
def function(self, name):
return self.functions[name]
def getstartline(self, name):
return self.startlines[name]
def wants_kwargs(self, name):
return self.kwargs.has_key(name)
def wants_noargs(self, name):
return self.noargs.has_key(name)
def wants_onearg(self, name):
return self.onearg.has_key(name)
def is_staticmethod(self, name):
return self.staticmethod.has_key(name)
def is_classmethod(self, name):
return self.classmethod.has_key(name)
def attr_is_overriden(self, attr):
return self.override_attrs.has_key(attr)
def attr_override(self, attr):
return self.override_attrs[attr]
def slot_is_overriden(self, slot):
return self.override_slots.has_key(slot)
def slot_override(self, slot):
return self.override_slots[slot]
def get_headers(self):
return self.headers
def get_body(self):
return self.body
def get_init(self):
return self.init
def get_imports(self):
return self.imports
def get_defines_for(self, klass):
return self.defines.get(klass, {})
def get_functions(self):
return self.functions
|