def declare_cfunction(self, name, type, pos, cname = None, visibility = 'private', defining = 0, api = 0, in_pxd = 0): if get_special_method_signature(name): error(pos, "Special methods must be declared with 'def', not 'cdef'") args = type.args if not args: error(pos, "C method has no self argument") elif not args[0].type.same_as(self.parent_type): error(pos, "Self argument of C method does not match parent type") entry = self.lookup_here(name) if entry: if not entry.is_cfunction: entry.redeclared(pos) elif entry.is_builtin_method: self.overriding_builtin_method(name, pos) else: if defining and entry.func_cname: error(pos, "'%s' already defined" % name) if not entry.type.same_as(type, as_cmethod = 1): error(pos, "Signature does not match previous declaration") error(entry.pos, "Previous declaration is here") else: if self.defined: error(pos, "C method '%s' not previously declared in definition part of" " extension type" % name) entry = self.add_cfunction(name, type, pos, cname or name, visibility) if defining: entry.func_cname = self.mangle(Naming.func_prefix, name) return entry
def declare_cfunction(self,
name,
type,
pos,
cname=None,
visibility='private',
defining=0):
if get_special_method_signature(name):
error(pos,
"Special methods must be declared with 'def', not 'cdef'")
args = type.args
if not args:
error(pos, "C method has no self argument")
elif not args[0].type.same_as(self.parent_type):
error(pos, "Self argument of C method does not match parent type")
entry = self.lookup_here(name)
if entry:
if not entry.is_cfunction:
error(pos, "'%s' redeclared" % name)
else:
if defining and entry.func_cname:
error(pos, "'%s' already defined" % name)
if not entry.type.same_as(type, as_cmethod=1):
error(pos, "Signature does not match previous declaration")
else:
if self.defined:
error(
pos,
"C method '%s' not previously declared in definition part of"
" extension type" % name)
entry = self.add_cfunction(name, type, pos, cname or name,
visibility)
if defining:
entry.func_cname = self.mangle(Naming.func_prefix, name)
return entry
def declare_var(self, name, type, pos,
cname = None, visibility = 'private', is_cdef = 0):
# Add an entry for an attribute.
if self.defined:
error(pos,
"C attributes cannot be added in implementation part of"
" extension type")
if get_special_method_signature(name):
error(pos,
"The name '%s' is reserved for a special method."
% name)
if not cname:
cname = name
entry = self.declare(name, cname, type, pos)
entry.visibility = visibility
entry.is_variable = 1
self.var_entries.append(entry)
if type.is_pyobject and name <> "__weakref__":
self.has_pyobject_attrs = 1
self.pyattr_entries.append(entry)
if visibility not in ('private', 'public', 'readonly'):
error(pos,
"Attribute of extension type cannot be declared %s" % visibility)
if visibility in ('public', 'readonly'):
if type.pymemberdef_typecode:
self.public_attr_entries.append(entry)
if name == "__weakref__":
error(pos, "Special attribute __weakref__ cannot be exposed to Python")
else:
error(pos,
"C attribute of type '%s' cannot be accessed from Python" % type)
if visibility == 'public' and type.is_extension_type:
error(pos,
"Non-generic Python attribute cannot be exposed for writing from Python")
return entry
def declare_pyfunction(self, name, pos):
# Add an entry for a method.
entry = self.declare(name, name, py_object_type, pos)
special_sig = get_special_method_signature(name)
if special_sig:
entry.signature = special_sig
# Special methods don't get put in the method table
else:
entry.signature = pymethod_signature
self.pyfunc_entries.append(entry)
return entry
def declare_pyfunction(self, name, pos):
# Add an entry for a method.
entry = self.declare(name, name, py_object_type, pos)
special_sig = get_special_method_signature(name)
if special_sig:
entry.signature = special_sig
# Special methods don't get put in the method table
else:
entry.signature = pymethod_signature
self.pyfunc_entries.append(entry)
return entry
def declare_var(self,
name,
type,
pos,
cname=None,
visibility='private',
is_cdef=0):
# Add an entry for an attribute.
if self.defined:
error(
pos, "C attributes cannot be added in implementation part of"
" extension type")
if get_special_method_signature(name):
error(pos,
"The name '%s' is reserved for a special method." % name)
if not cname:
cname = name
entry = self.declare(name, cname, type, pos)
entry.visibility = visibility
entry.is_variable = 1
self.var_entries.append(entry)
if type.is_pyobject:
self.has_pyobject_attrs = 1
if visibility not in ('private', 'public', 'readonly'):
error(
pos, "Attribute of extension type cannot be declared %s" %
visibility)
if visibility in ('public', 'readonly'):
if type.pymemberdef_typecode:
self.public_attr_entries.append(entry)
if name == "__weakref__":
error(
pos,
"Special attribute __weakref__ cannot be exposed to Python"
)
else:
error(
pos,
"C attribute of type '%s' cannot be accessed from Python" %
type)
if visibility == 'public' and type.is_extension_type:
error(
pos,
"Non-generic Python attribute cannot be exposed for writing from Python"
)
return entry
def declare_pyfunction(self, name, pos): # Add an entry for a method. if name == "__new__": error(pos, "__new__ method of extension type will change semantics " "in a future version of Pyrex. Use __cinit__ instead.") name = "__cinit__" entry = self.lookup_here(name) if entry and entry.is_builtin_method: self.overriding_builtin_method(name, pos) else: entry = self.declare(name, name, py_object_type, pos) special_sig = get_special_method_signature(name) if special_sig: entry.is_special = 1 entry.signature = special_sig # Special methods don't get put in the method table else: entry.signature = pymethod_signature self.pyfunc_entries.append(entry) return entry