def __setitem__(self, index, value):
cobj = self._type_.from_param(value)
if ensure_objects(cobj) is not None:
store_reference(self, index, cobj._objects)
address = self._buffer[0]
address += index * sizeof(self._type_)
cobj._copy_to(address)
def __buffer__(self, flags):
shape = []
obj = self
while 1:
shape.append(obj._length_)
try:
obj[0]._length_
except (AttributeError, IndexError):
break
obj = obj[0]
fmt = obj._type_._getformat()
itemsize = sizeof(obj._type_)
return __pypy__.newmemoryview(memoryview(self._buffer), itemsize, fmt,
shape)
def __buffer__(self, flags):
shape = []
obj = self
while 1:
shape.append(obj._length_)
try:
obj[0]._length_
except (AttributeError, IndexError):
break
obj = obj[0]
fmt = get_format_str(obj._type_)
try:
itemsize = struct.calcsize(fmt[1:])
except:
itemsize = sizeof(obj[0])
return __pypy__.newmemoryview(memoryview(self._buffer), itemsize, fmt, shape)
def _setval(self, value):
d = result()
d.value = value
self._buffer[0] = swap_bytes(d.value, sizeof(self), name,
'set')
def _getval(self):
return swap_bytes(self._buffer[0], sizeof(self), name, 'get')
def _subarray(self, index=0):
"""Return a _rawffi array of length 1 whose address is the same as
the index'th item to which self is pointing."""
address = self._buffer[0]
address += index * sizeof(self._type_)
return self._type_.from_address(address)._buffer
