def sizeof(tp):
assert isinstance(tp, Type)
if tp.size == 0 or tp.align == 0:
raise unwind(LTypeError(u"cannot determine size of opaque type"))
return tp.size
def cast_to_ffitype(self):
for rtype in signed_types:
if self.size == rffi.sizeof(rtype):
return clibffi.cast_type_to_ffitype(rtype)
else:
raise unwind(LTypeError(u"undefined ffi type: %s" % self.repr()))
def store(self, pool, offset, value):
raise unwind(LTypeError(u".store method missing"))
def load(self, offset, copy):
for rtype in floating_types:
if self.size == rffi.sizeof(rtype):
return Float(rffi.cast(rffi.DOUBLE, rffi.cast(rffi.CArrayPtr(rtype), offset)[0]))
else:
raise unwind(LTypeError(u"undefined ffi type: %s" % self.repr()))
def load(self, offset, copy):
raise unwind(LTypeError(u".load method missing"))
def cast_to_ffitype(self):
raise unwind(LTypeError(u".cast_to_ffitype method missing"))
def load(self, offset, copy):
for rtype in unsigned_types:
if self.size == rffi.sizeof(rtype):
return Integer(rffi.cast(rffi.LONG, rffi.cast(rffi.CArrayPtr(rtype), offset)[0]))
else:
raise unwind(LTypeError(u"undefined ffi type: %s" % self.repr()))
