decodeValue method
Implementation
@override
List<T> decodeValue(Pipe x, CType t) {
final opt = checkType(t);
if (opt is! OptClass) {
throw TypeError();
}
final len = Uint8List.fromList(safeRead(x as Pipe<int>, 1)).toHex();
if (len == '00') {
return [];
} else if (len == '01') {
return [_type.decodeValue(x, opt._type)];
}
throw UnsupportedError('not an option value.');
}