/**
 * Copyright (c) 2025 Huawei Technologies Co., Ltd.
 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
 * CANN Open Software License Agreement Version 2.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
 * See LICENSE in the root of the software repository for the full text of the License.
 * 
 * The code snippet comes from Ascend project.
 * 
 * Copyright 2019-2020 Huawei Technologies Co., Ltd
 * 
 * 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 INC_EXTERNAL_GRAPH_ASCEND_STRING_H_
#define INC_EXTERNAL_GRAPH_ASCEND_STRING_H_

#include <string>
#include <memory>
#include <functional>
#include "graph/types.h"

namespace ge {
class  AscendStringImpl;

class AscendString {
 public:
  AscendString() = default;

  ~AscendString() = default;

  AscendString(const char_t *const name);

  AscendString(const char_t *const name, size_t length);

  const char_t *GetString() const;

  size_t GetLength() const;

  size_t Find(const AscendString &ascend_string) const;

  size_t Hash() const;

  bool operator<(const AscendString &d) const;

  bool operator>(const AscendString &d) const;

  bool operator<=(const AscendString &d) const;

  bool operator>=(const AscendString &d) const;

  bool operator==(const AscendString &d) const;

  bool operator!=(const AscendString &d) const;

  bool operator==(const char_t *const d) const;

  bool operator!=(const char_t *const d) const;

 private:
  std::shared_ptr<std::string> name_;
  friend class AscendStringImpl;
};
}  // namespace ge

namespace std {
template<>
struct hash<ge::AscendString> {
  size_t operator()(const ge::AscendString &name) const {
    return name.Hash();
  }
};
}  // namespace std
#endif  // INC_EXTERNAL_GRAPH_ASCEND_STRING_H_