1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef MAPLEBE_INCLUDE_CG_VISITOR_COMMON_H 17 #define MAPLEBE_INCLUDE_CG_VISITOR_COMMON_H 18 namespace maplebe { 19 class OperandVisitorBase { 20 public: 21 virtual ~OperandVisitorBase() = default; 22 }; 23 24 template <typename Visitable> 25 class OperandVisitor { 26 public: 27 virtual ~OperandVisitor() = default; 28 virtual void Visit(Visitable *v) = 0; 29 }; 30 31 template <typename... V> 32 class OperandVisitors { 33 public: 34 virtual ~OperandVisitors() = default; 35 }; 36 37 template <typename OpV1, typename OpV2, typename... OpV3> 38 class OperandVisitors<OpV1, OpV2, OpV3...> 39 : public OperandVisitor<OpV1>, public OperandVisitor<OpV2>, public OperandVisitor<OpV3>... { 40 }; 41 } /* namespace maplebe */ 42 #endif /* MAPLEBE_INCLUDE_CG_VISITOR_COMMON_H */ 43