text: // Copyright (c) 2020 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
  
  #include <cstdint>
  #include <map>
  #include <string>
  #include <vector>
  #include "lite/model_parser/base/traits.h"
  #include "lite/utils/cp_logging.h"
  
  namespace paddle {
  namespace lite {
  
  class OpVersionMapReadAPI {
   public:
    virtual std::map<std::string, int32_t> GetOpVersionMap() const = 0;
    virtual int32_t GetOpVersionByName(const std::string& name) const = 0;
    virtual ~OpVersionMapReadAPI() = default;
  };
  
  class OpVersionMapWriteAPI {
   public:
    virtual void SetOpVersionMap(
        const std::map<std::string, int32_t>& op_version_map) {
      LITE_MODEL_INTERFACE_NOT_IMPLEMENTED;
    }
    virtual void AddOpVersion(const std::string& op_name, int32_t op_version) {
      LITE_MODEL_INTERFACE_NOT_IMPLEMENTED;
    }
    virtual ~OpVersionMapWriteAPI() = default;
  };
  
  // The reading and writing of the model are one-time and separate.
  // This interface is a combination of reading and writing interfaces,
  // which is used to support legacy interfaces.
  
  class OpVersionMapAPI : public OpVersionMapReadAPI,
                          public OpVersionMapWriteAPI {
   public:
    virtual ~OpVersionMapAPI() = default;
  };
  
  }  // namespace lite
  }  // namespace paddle
  