def is_true(w_obj):
# a bit of duplication of the logic from DescrOperation.is_true...
# first try 'nonzero'
try:
w_res = nonzero_shortcut(space, w_obj)
except FailedToImplement:
pass
else:
# the __nonzero__ method of built-in objects should
# always directly return a Bool
assert isinstance(w_res, W_BoolObject)
return w_res.boolval
# then try 'len'
try:
w_res = len_shortcut(space, w_obj)
except FailedToImplement:
pass
else:
# the __len__ method of built-in objects typically
# returns an unwrappable integer
try:
return space.int_w(w_res) != 0
except OperationError:
# I think no OperationError other than w_OverflowError
# could occur here
w_obj = w_res
# general case fallback
return DescrOperation.is_true(space, w_obj)
def getattr(self, w_obj, w_name):
if not self.config.objspace.std.getattributeshortcut:
return DescrOperation.getattr(self, w_obj, w_name)
# an optional shortcut for performance
from pypy.objspace.descroperation import raiseattrerror
from pypy.objspace.descroperation import object_getattribute
w_type = self.type(w_obj)
if not w_type.uses_object_getattribute:
# slow path: look for a custom __getattribute__ on the class
w_descr = w_type.lookup('__getattribute__')
# if it was not actually overriden in the class, we remember this
# fact for the next time.
if w_descr is object_getattribute(self):
w_type.uses_object_getattribute = True
return self._handle_getattribute(w_descr, w_obj, w_name)
# fast path: XXX this is duplicating most of the logic
# from the default __getattribute__ and the getattr() method...
name = self.str_w(w_name)
w_descr = w_type.lookup(name)
e = None
if w_descr is not None:
if not self.is_data_descr(w_descr):
w_value = w_obj.getdictvalue_attr_is_in_class(self, w_name)
if w_value is not None:
return w_value
try:
return self.get(w_descr, w_obj)
except OperationError, e:
if not e.match(self, self.w_AttributeError):
raise
def getattr(self, w_obj, w_name):
if not self.config.objspace.std.getattributeshortcut:
return DescrOperation.getattr(self, w_obj, w_name)
# an optional shortcut for performance
from pypy.objspace.descroperation import raiseattrerror
from pypy.objspace.descroperation import object_getattribute
w_type = self.type(w_obj)
if not w_type.uses_object_getattribute:
# slow path: look for a custom __getattribute__ on the class
w_descr = w_type.lookup('__getattribute__')
# if it was not actually overriden in the class, we remember this
# fact for the next time.
if w_descr is object_getattribute(self):
w_type.uses_object_getattribute = True
return self._handle_getattribute(w_descr, w_obj, w_name)
# fast path: XXX this is duplicating most of the logic
# from the default __getattribute__ and the getattr() method...
name = self.str_w(w_name)
w_descr = w_type.lookup(name)
e = None
if w_descr is not None:
if not self.is_data_descr(w_descr):
w_value = w_obj.getdictvalue_attr_is_in_class(self, w_name)
if w_value is not None:
return w_value
try:
return self.get(w_descr, w_obj)
except OperationError, e:
if not e.match(self, self.w_AttributeError):
raise
def is_true(self, w_obj):
# first a few shortcuts for performance
if type(w_obj) is W_BoolObject:
return w_obj.boolval
if w_obj is self.w_None:
return False
# then a shortcut for bootstrapping reasons
if type(w_obj) is self.DictObjectCls:
return w_obj.len() != 0
else:
return DescrOperation.is_true(self, w_obj)
def is_true(w_obj):
# a bit of duplication of the logic from DescrOperation.is_true...
try:
w_res = shortcut(space, w_obj)
except FailedToImplement:
pass
else:
# the __nonzero__ method of built-in objects should
# always directly return a Bool; however, the __len__ method
# of built-in objects typically returns an unwrappable integer
if isinstance(w_res, W_BoolObject):
return w_res.boolval
try:
return space.int_w(w_res) != 0
except OperationError:
# I think no OperationError other than w_OverflowError
# could occur here
w_obj = w_res
# general case fallback
return DescrOperation.is_true(space, w_obj)
def getattr(self, w_obj, w_name):
if not self.config.objspace.std.getattributeshortcut:
return DescrOperation.getattr(self, w_obj, w_name)
# an optional shortcut for performance
w_type = self.type(w_obj)
w_descr = w_type.getattribute_if_not_from_object()
if w_descr is not None:
return self._handle_getattribute(w_descr, w_obj, w_name)
# fast path: XXX this is duplicating most of the logic
# from the default __getattribute__ and the getattr() method...
name = self.str_w(w_name)
w_descr = w_type.lookup(name)
e = None
if w_descr is not None:
w_get = None
is_data = self.is_data_descr(w_descr)
if is_data:
w_get = self.lookup(w_descr, "__get__")
if w_get is None:
w_value = w_obj.getdictvalue(self, name)
if w_value is not None:
return w_value
if not is_data:
w_get = self.lookup(w_descr, "__get__")
if w_get is not None:
# __get__ is allowed to raise an AttributeError to trigger
# use of __getattr__.
try:
return self.get_and_call_function(w_get, w_descr, w_obj,
w_type)
except OperationError, e:
if not e.match(self, self.w_AttributeError):
raise
else:
return w_descr
def getattr(self, w_obj, w_name):
if not self.config.objspace.std.getattributeshortcut:
return DescrOperation.getattr(self, w_obj, w_name)
# an optional shortcut for performance
w_type = self.type(w_obj)
w_descr = w_type.getattribute_if_not_from_object()
if w_descr is not None:
return self._handle_getattribute(w_descr, w_obj, w_name)
# fast path: XXX this is duplicating most of the logic
# from the default __getattribute__ and the getattr() method...
name = self.str_w(w_name)
w_descr = w_type.lookup(name)
e = None
if w_descr is not None:
w_get = None
is_data = self.is_data_descr(w_descr)
if is_data:
w_get = self.lookup(w_descr, "__get__")
if w_get is None:
w_value = w_obj.getdictvalue(self, name)
if w_value is not None:
return w_value
if not is_data:
w_get = self.lookup(w_descr, "__get__")
if w_get is not None:
# __get__ is allowed to raise an AttributeError to trigger
# use of __getattr__.
try:
return self.get_and_call_function(w_get, w_descr, w_obj,
w_type)
except OperationError, e:
if not e.match(self, self.w_AttributeError):
raise
else:
return w_descr
def is_true(self, w_obj):
# a shortcut for performance
# NOTE! this method is typically overridden by builtinshortcut.py.
if type(w_obj) is W_BoolObject:
return w_obj.boolval
return DescrOperation.is_true(self, w_obj)
def is_true(self, w_obj):
# a shortcut for performance
# NOTE! this method is typically overridden by builtinshortcut.py.
if type(w_obj) is W_BoolObject:
return w_obj.boolval
return DescrOperation.is_true(self, w_obj)
