def _obj(self, value):
if value == ffi.NULL:
value = None
if value is not None and ffi.typeof(value) is not ffi.typeof(self._ffitype):
raise TypeError('obj must be of type "%s"' % cls._ffitype)
if self.__obj is not None:
del self._obj_instance_map[(self.__obj, self._ffitype)]
self.__obj = value
if value is not None:
self._obj_instance_map[(value, self._ffitype)] = self
def _obj(self, value):
if value == ffi.NULL:
value = None
if value is not None and ffi.typeof(value) is not ffi.typeof(
self._ffitype):
raise TypeError('obj must be of type "%s"' % cls._ffitype)
if self.__obj is not None:
del self._obj_instance_map[(self.__obj, self._ffitype)]
self.__obj = value
if value is not None:
self._obj_instance_map[(value, self._ffitype)] = self
def _from_obj(cls, obj):
"""Get a Python instance for the cdata obj
Arguments:
obj (cffi.cdata): The struct to wrap
Returns:
A tuple (instance, created) where instance is a python object
wrapping `obj`. `created` is `False` if an existing instance was
found and returned. It is `True` if a new python instance was
created.
"""
if ffi.typeof(obj) is not ffi.typeof(cls._ffitype):
raise TypeError('obj must be of type "%s"' % cls._ffitype)
instance = cls._obj_instance_map.get((obj, cls._ffitype), None)
if instance is not None:
return instance, False
# TODO: This makes me feel terrible and hate everything :(
instance = cls.__new__(cls)
instance._obj = obj
return instance, True
def _from_obj(cls, obj):
"""Get a Python instance for the cdata obj
Arguments:
obj (cffi.cdata): The struct to wrap
Returns:
A tuple (instance, created) where instance is a python object
wrapping `obj`. `created` is `False` if an existing instance was
found and returned. It is `True` if a new python instance was
created.
"""
if ffi.typeof(obj) is not ffi.typeof(cls._ffitype):
raise TypeError('obj must be of type "%s"' % cls._ffitype)
instance = cls._obj_instance_map.get((obj, cls._ffitype), None)
if instance is not None:
return instance, False
# TODO: This makes me feel terrible and hate everything :(
instance = cls.__new__(cls)
instance._obj = obj
return instance, True
