Error.hh

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/*
 * Copyright 2017 Open Source Robotics Foundation
 *
 * 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 SDF_ERROR_HH_
#define SDF_ERROR_HH_

#include <iostream>
#include <string>
#include "sdf/system_util.hh"

#ifdef _WIN32
// Disable warning C4251 which is triggered by
// std::string
#pragma warning(push)
#pragma warning(disable: 4251)
#endif

namespace sdf
{
  enum class ErrorCode
  {
    // \brief No error
    NONE = 0,

    FILE_READ,

    DUPLICATE_NAME,

    ATTRIBUTE_MISSING,

    ATTRIBUTE_INVALID,

    ATTRIBUTE_DEPRECATED,

    ELEMENT_MISSING,

    ELEMENT_INVALID,

    ELEMENT_DEPRECATED,

    ELEMENT_INCORRECT_TYPE,

    URI_INVALID,

    URI_LOOKUP,

    DIRECTORY_NONEXISTANT,
  };

  class SDFORMAT_VISIBLE Error
  {
    public: Error() = default;

    public: Error(const ErrorCode _code, const std::string &_message);

    public: ErrorCode Code() const;

    public: std::string Message() const;

    public: explicit operator bool() const;

    public: bool operator==(const bool _value) const;

    public: friend std::ostream &operator<<(std::ostream &_out,
                                            const sdf::Error &_err)
    {
      _out << "Error Code: "
        << static_cast<std::underlying_type<sdf::ErrorCode>::type>(_err.Code())
        << " Msg: " << _err.Message();
      return _out;
    }

    private: ErrorCode code = ErrorCode::NONE;

#ifdef _WIN32
  // Disable warning C4251 which is triggered by
  // std::string
  #pragma warning(push)
  #pragma warning(disable: 4251)
#endif
    private: std::string message = "";
#ifdef _WIN32
  #pragma warning(pop)
#endif
  };
}
#ifdef _WIN32
#pragma warning(pop)
#endif


#endif