# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Callable

from .extension import Extension


def make_extension(trigger: Callable=None,
                   default_name: str=None,
                   priority: int=None,
                   finalizer: Callable=None,
                   initializer: Callable=None,
                   on_error: Callable=None):
    """Make an Extension-like object by injecting required attributes to it.
    """
    if trigger is None:
        trigger = Extension.trigger
    if priority is None:
        priority = Extension.priority

    def decorator(ext):
        ext.trigger = trigger
        ext.default_name = default_name or ext.__name__
        ext.priority = priority
        ext.finalize = finalizer
        ext.on_error = on_error
        ext.initialize = initializer
        return ext

    return decorator
