stone_serializers.py 文件源码

def encode_struct_tree(self, validator, value):
        assert type(value) in validator.definition._pytype_to_tag_and_subtype_, \
            '%r is not a serializable subtype of %r.' % (type(value), validator.definition)

        tags, subtype = validator.definition._pytype_to_tag_and_subtype_[type(value)]

        assert len(tags) == 1, tags
        assert not isinstance(subtype, bv.StructTree), \
            'Cannot serialize type %r because it enumerates subtypes.' % subtype.definition

        if self.old_style:
            d = {
                tags[0]: self.encode_struct(subtype, value),
            }
        else:
            d = collections.OrderedDict()
            d['.tag'] = tags[0]
            d.update(self.encode_struct(subtype, value))

        return d