def decode_abi(self, types: Iterable[TypeStr],
data: Decodable) -> Tuple[Any, ...]:
"""
Decodes the binary value ``data`` as a sequence of values of the ABI types
in ``types`` via the head-tail mechanism into a tuple of equivalent python
values.
:param types: An iterable of string representations of the ABI types that
will be used for decoding e.g. ``('uint256', 'bytes[]', '(int,int)')``
:param data: The binary value to be decoded.
:returns: A tuple of equivalent python values for the ABI values
represented in ``data``.
"""
if not is_bytes(data):
raise TypeError(
"The `data` value must be of bytes type. Got {0}".format(
type(data)))
decoders = [self._registry.get_decoder(type_str) for type_str in types]
decoder = TupleDecoder(decoders=decoders)
stream = self.stream_class(data)
return decoder(stream)
def decode_abi(types, data):
if not is_bytes(data):
raise TypeError(
"The `data` value must be of bytes type. Got {0}".format(
type(data)))
decoders = [registry.get_decoder(type_str) for type_str in types]
decoder = TupleDecoder(decoders=decoders)
stream = ContextFramesBytesIO(data)
return decoder(stream)
def decode(self, types: Iterable[TypeStr],
data: Decodable) -> Tuple[Any, ...]:
"""
Decodes the binary value ``data`` as a sequence of values of the ABI types
in ``types`` via the head-tail mechanism into a tuple of equivalent python
values.
:param types: A list or tuple of string representations of the ABI types that
will be used for decoding e.g. ``('uint256', 'bytes[]', '(int,int)')``
:param data: The binary value to be decoded.
:returns: A tuple of equivalent python values for the ABI values
represented in ``data``.
"""
validate_list_like_param(types, 'types')
validate_bytes_param(data, 'data')
decoders = [self._registry.get_decoder(type_str) for type_str in types]
decoder = TupleDecoder(decoders=decoders)
stream = self.stream_class(data)
return decoder(stream)
def test_tuple_decoder(types, data, expected):
decoders = [registry.get_decoder(t) for t in types]
decoder = TupleDecoder(decoders=decoders)
stream = ContextFramesBytesIO(decode_hex(data))
actual = decoder(stream)
assert actual == expected