add tiramisu/asyncinit.py file

This commit is contained in:
Emmanuel Garette 2020-01-17 14:15:57 +01:00
parent 1861dc59d4
commit 746fa0134f

29
tiramisu/asyncinit.py Normal file
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# -*- coding: utf-8 -*-
# Copyright (C) 2019 Team tiramisu (see AUTHORS for all contributors)
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# largely inspired by https://github.com/kchmck/pyasyncinit
# ____________________________________________________________
from functools import wraps
def asyncinit(obj):
@wraps(obj.__new__)
async def new(cls, *args, **kwargs):
instance = object.__new__(cls) # (cls, *args, **kwargs)
await instance.__init__(*args, **kwargs)
return instance
obj.__new__ = new
return obj