text: /**
   * Copyright (c) 2021 SQLines
   *
   * 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.
   */
  
  #ifndef SNAPSHOT_HPP
  #define SNAPSHOT_HPP
  
  #include <map>
  #include "QString"
  
  namespace model {
      class Snapshot;
  }
  
  class model::Snapshot {
  public:
      QString operator[](const QString& key) const noexcept;
      QString& operator[](const QString& key) noexcept;
  
      void clear() noexcept;
  
  private:
      std::map<QString, QString> state;
  };
  
  #endif // SNAPSHOT_HPP
  