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):
for rtype in signed_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()))
def sizeof_a(tp, n):
assert isinstance(tp, Type)
if tp.size == 0 or tp.align == 0:
raise unwind(LTypeError(u"cannot determine size of opaque type"))
if tp.parameter is not None:
return tp.size + sizeof(tp.parameter) * n
else:
return tp.size * n
def store(self, pool, offset, value):
for rtype in signed_types:
if self.size == rffi.sizeof(rtype):
pnt = rffi.cast(rffi.CArrayPtr(rtype), offset)
pnt[0] = rffi.cast(rtype, to_int(value))
break
else:
raise unwind(LTypeError(u"undefined ffi type: %s" % self.repr()))
return value
def store(self, pool, offset, value):
number = to_float(value)
for rtype in floating_types:
if self.size == rffi.sizeof(rtype):
pnt = rffi.cast(rffi.CArrayPtr(rtype), offset)
pnt[0] = rffi.cast(rtype, number)
break
else:
raise unwind(LTypeError(u"undefined ffi type: %s" % self.repr()))
return value
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 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 store(self, pool, offset, value):
raise unwind(LTypeError(u".store method missing"))
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"))