// Copyright (c) 2022 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.#pragma once#define DECLARE_GRAPH_FRIEND_CLASS(a) friend class a;#define DECLARE_1_FRIEND_CLASS(a, ...) DECLARE_GRAPH_FRIEND_CLASS(a)#define DECLARE_2_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_1_FRIEND_CLASS(__VA_ARGS__)#define DECLARE_3_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_2_FRIEND_CLASS(__VA_ARGS__)#define DECLARE_4_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_3_FRIEND_CLASS(__VA_ARGS__)#define DECLARE_5_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_4_FRIEND_CLASS(__VA_ARGS__)#define DECLARE_6_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_5_FRIEND_CLASS(__VA_ARGS__)#define DECLARE_7_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_6_FRIEND_CLASS(__VA_ARGS__)#define DECLARE_8_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_7_FRIEND_CLASS(__VA_ARGS__)#define DECLARE_9_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_8_FRIEND_CLASS(__VA_ARGS__)#define DECLARE_10_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_9_FRIEND_CLASS(__VA_ARGS__)#define DECLARE_11_FRIEND_CLASS(a, ...) \ DECLARE_GRAPH_FRIEND_CLASS(a) DECLARE_10_FRIEND_CLASS(__VA_ARGS__)#define REGISTER_GRAPH_FRIEND_CLASS(n, ...) \ DECLARE_##n##_FRIEND_CLASS(__VA_ARGS__)
