TAG_UINT16 = 0x04
TAG_UINT32 = 0x05
TAG_UINT64 = 0x06
+TAG_INT8 = 0x10
+TAG_INT16 = 0x11
+TAG_INT32 = 0x12
+TAG_INT64 = 0x13
TaggedObject = collections.namedtuple(
'TaggedObject',
TAG_UINT16: _make_struct_serializer('H'),
TAG_UINT32: _make_struct_serializer('I'),
TAG_UINT64: _make_struct_serializer('Q'),
+ TAG_INT8: _make_struct_serializer('b'),
+ TAG_INT16: _make_struct_serializer('h'),
+ TAG_INT32: _make_struct_serializer('i'),
+ TAG_INT64: _make_struct_serializer('q'),
}
def serialize(to):
return parser
+def _make_struct_deserializer(tag, fmt):
+ fmt = '!' + fmt
+ size = struct.calcsize(fmt)
+ unpacker = functools.partial(struct.unpack, fmt)
+
+ def parser(b):
+ b = b.read(size)
+ assert len(b) == size
+ return TaggedObject(tag = tag, instance = unpacker(b)[0])
+
+ return parser
+
_TAGS_TO_PARSERS = {
TAG_NULL: _make_tag_only_parser(TAG_NULL, None),
TAG_TRUE: _make_tag_only_parser(TAG_TRUE, True),
TAG_FALSE: _make_tag_only_parser(TAG_FALSE, False),
+ TAG_UINT8: _make_struct_deserializer(TAG_UINT8, 'B'),
+ TAG_UINT16: _make_struct_deserializer(TAG_UINT16, 'H'),
+ TAG_UINT32: _make_struct_deserializer(TAG_UINT32, 'I'),
+ TAG_UINT64: _make_struct_deserializer(TAG_UINT64, 'Q'),
+ TAG_INT8: _make_struct_deserializer(TAG_INT8, 'b'),
+ TAG_INT16: _make_struct_deserializer(TAG_INT16, 'h'),
+ TAG_INT32: _make_struct_deserializer(TAG_INT32, 'i'),
+ TAG_INT64: _make_struct_deserializer(TAG_INT64, 'q'),
}
def deserialize(b):