forked-synapse/synapse/util/frozenutils.py
Erik Johnston 23740eaa3d
Correctly mention previous copyright (#16820)
During the migration the automated script to update the copyright
headers accidentally got rid of some of the existing copyright lines.
Reinstate them.
2024-01-23 11:26:48 +00:00

58 lines
1.4 KiB
Python

#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2014-2016 OpenMarket Ltd
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
import collections.abc
from typing import Any
from immutabledict import immutabledict
def freeze(o: Any) -> Any:
if isinstance(o, dict):
return immutabledict({k: freeze(v) for k, v in o.items()})
if isinstance(o, immutabledict):
return o
if isinstance(o, (bytes, str)):
return o
try:
return tuple(freeze(i) for i in o)
except TypeError:
pass
return o
def unfreeze(o: Any) -> Any:
if isinstance(o, collections.abc.Mapping):
return {k: unfreeze(v) for k, v in o.items()}
if isinstance(o, (bytes, str)):
return o
try:
return [unfreeze(i) for i in o]
except TypeError:
pass
return o