/usr/lib/python3/dist-packages/Cython/Compiler/CythonScope.py is in cython3 0.25.2-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 | from __future__ import absolute_import
from .Symtab import ModuleScope
from .PyrexTypes import *
from .UtilityCode import CythonUtilityCode
from .Errors import error
from .Scanning import StringSourceDescriptor
from . import MemoryView
class CythonScope(ModuleScope):
is_cython_builtin = 1
_cythonscope_initialized = False
def __init__(self, context):
ModuleScope.__init__(self, u'cython', None, None)
self.pxd_file_loaded = True
self.populate_cython_scope()
# The Main.Context object
self.context = context
for fused_type in (cy_integral_type, cy_floating_type, cy_numeric_type):
entry = self.declare_typedef(fused_type.name,
fused_type,
None,
cname='<error>')
entry.in_cinclude = True
def lookup_type(self, name):
# This function should go away when types are all first-level objects.
type = parse_basic_type(name)
if type:
return type
return super(CythonScope, self).lookup_type(name)
def lookup(self, name):
entry = super(CythonScope, self).lookup(name)
if entry is None and not self._cythonscope_initialized:
self.load_cythonscope()
entry = super(CythonScope, self).lookup(name)
return entry
def find_module(self, module_name, pos):
error("cython.%s is not available" % module_name, pos)
def find_submodule(self, module_name):
entry = self.entries.get(module_name, None)
if not entry:
self.load_cythonscope()
entry = self.entries.get(module_name, None)
if entry and entry.as_module:
return entry.as_module
else:
# TODO: fix find_submodule control flow so that we're not
# expected to create a submodule here (to protect CythonScope's
# possible immutability). Hack ourselves out of the situation
# for now.
raise error((StringSourceDescriptor(u"cython", u""), 0, 0),
"cython.%s is not available" % module_name)
def lookup_qualified_name(self, qname):
# ExprNode.as_cython_attribute generates qnames and we untangle it here...
name_path = qname.split(u'.')
scope = self
while len(name_path) > 1:
scope = scope.lookup_here(name_path[0])
if scope:
scope = scope.as_module
del name_path[0]
if scope is None:
return None
else:
return scope.lookup_here(name_path[0])
def populate_cython_scope(self):
# These are used to optimize isinstance in FinalOptimizePhase
type_object = self.declare_typedef(
'PyTypeObject',
base_type = c_void_type,
pos = None,
cname = 'PyTypeObject')
type_object.is_void = True
type_object_type = type_object.type
self.declare_cfunction(
'PyObject_TypeCheck',
CFuncType(c_bint_type, [CFuncTypeArg("o", py_object_type, None),
CFuncTypeArg("t", c_ptr_type(type_object_type), None)]),
pos = None,
defining = 1,
cname = 'PyObject_TypeCheck')
def load_cythonscope(self):
"""
Creates some entries for testing purposes and entries for
cython.array() and for cython.view.*.
"""
if self._cythonscope_initialized:
return
self._cythonscope_initialized = True
cython_testscope_utility_code.declare_in_scope(
self, cython_scope=self)
cython_test_extclass_utility_code.declare_in_scope(
self, cython_scope=self)
#
# The view sub-scope
#
self.viewscope = viewscope = ModuleScope(u'view', self, None)
self.declare_module('view', viewscope, None).as_module = viewscope
viewscope.is_cython_builtin = True
viewscope.pxd_file_loaded = True
cythonview_testscope_utility_code.declare_in_scope(
viewscope, cython_scope=self)
view_utility_scope = MemoryView.view_utility_code.declare_in_scope(
self.viewscope, cython_scope=self,
whitelist=MemoryView.view_utility_whitelist)
# self.entries["array"] = view_utility_scope.entries.pop("array")
def create_cython_scope(context):
# One could in fact probably make it a singleton,
# but not sure yet whether any code mutates it (which would kill reusing
# it across different contexts)
return CythonScope(context)
# Load test utilities for the cython scope
def load_testscope_utility(cy_util_name, **kwargs):
return CythonUtilityCode.load(cy_util_name, "TestCythonScope.pyx", **kwargs)
undecorated_methods_protos = UtilityCode(proto=u"""
/* These methods are undecorated and have therefore no prototype */
static PyObject *__pyx_TestClass_cdef_method(
struct __pyx_TestClass_obj *self, int value);
static PyObject *__pyx_TestClass_cpdef_method(
struct __pyx_TestClass_obj *self, int value, int skip_dispatch);
static PyObject *__pyx_TestClass_def_method(
PyObject *self, PyObject *value);
""")
cython_testscope_utility_code = load_testscope_utility("TestScope")
test_cython_utility_dep = load_testscope_utility("TestDep")
cython_test_extclass_utility_code = \
load_testscope_utility("TestClass", name="TestClass",
requires=[undecorated_methods_protos,
test_cython_utility_dep])
cythonview_testscope_utility_code = load_testscope_utility("View.TestScope")
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