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/* ScummVM - Graphic Adventure Engine
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * $URL$
 * $Id$


#include "common/str.h"

namespace Common {

 * This file contains an enum with commonly used error codes.

 * Error codes which may be reported by plugins under various circumstances.
 * @note Error names should follow the pattern k-NOUN/ACTION-CONDITION-Error.
 *       So kPathInvalidError would be correct, but these would not be:
 *       kInvalidPath, kPathInvalid, kPathIsInvalid, kInvalidPathError.
 * @todo Adjust all error codes to comply with these conventions.
enum ErrorCode {
      kNoError = 0,                       ///< No error occurred
      kNoGameDataFoundError,        ///< Engine initialization: No game data was found in the specified location
      kUnsupportedGameidError,      ///< Engine initialization: Gameid not supported by this (Meta)Engine
      kUnsupportedColorMode,        ///< Engine initialization: Engine does not support backend's color mode

      kReadPermissionDenied,        ///< Unable to read data due to missing read permission
      kWritePermissionDenied,       ///< Unable to write data due to missing write permission

      kPathDoesNotExist,                  ///< The specified path does not exist
      kPathNotDirectory,                  ///< The specified path does not point to a directory
      kPathNotFile,                       ///< The specified path does not point to a file

      kCreatingFileFailed,          ///< Failed creating a (savestate) file
      kReadingFailed,                     ///< Failed to read a file (permission denied?)
      kWritingFailed,                     ///< Failure to write data -- disk full?

      // The following are used by --list-saves
      kEnginePluginNotFound,        ///< Failed to find plugin to handle target
      kEnginePluginNotSupportSaves, ///< Failed if plugin does not support listing save states

      kArgumentNotProcessed,        ///< Used in command line parsing

      kUnknownError                       ///< Catch-all error, used if no other error code matches

 * An Error instance pairs an error code with string description providing more
 * details about the error. For every error code, a default description is
 * provided, but it is possible to optionally augment that description with
 * extra information when creating a new Error instance.
00080 class Error {
      ErrorCode _code;
      String _desc;
       * Construct a new Error with the specified error code and the default
       * error message.
      Error(ErrorCode code = kUnknownError);

       * Construct a new Error with the specified error code and an augmented
       * error message. Specifically, the provided extra text is suitably
       * appended to the default message.
      Error(ErrorCode code, const String &extra);

       * Get the description of this error.
00101       const String &getDesc() const { return _desc; }

       * Get the error code of this error.
00106       ErrorCode getCode() const { return _code; }

} // End of namespace Common


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