kicad/include/ki_exception.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2007-2016 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
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* Copyright (C) 2016-2020 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef KI_EXCEPTION_H_
#define KI_EXCEPTION_H_
#include <wx/string.h>
/**
* @ingroup exception_types
* @{
*/
/// macro which captures the "call site" values of __FILE_, __FUNCTION__ & __LINE__
#define THROW_IO_ERROR( msg ) throw IO_ERROR( msg, __FILE__, __FUNCTION__, __LINE__ )
/**
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* Hold a translatable error message and may be used when throwing exceptions containing a
* translated error message.
*/
class KI_PARAM_ERROR // similar to std::invalid_argument for instance
{
public:
/**
* Constructor
*/
KI_PARAM_ERROR( const wxString& aMessage )
{
m_message = aMessage;
}
KI_PARAM_ERROR() {}
const wxString What() const
{
return m_message;
}
virtual ~KI_PARAM_ERROR() throw () {}
private:
wxString m_message;
};
/**
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* Hold an error message and may be used when throwing exceptions containing meaningful
* error messages.
*
* @author Dick Hollenbeck
*/
class IO_ERROR // : std::exception
{
public:
/**
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* Use macro #THROW_IO_ERROR() to wrap a call to this constructor at the call site.
*
* @param aProblem is Problem() text.
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* @param aThrowersFile is the __FILE__ preprocessor macro but generated at the source
* file of thrower.
* @param aThrowersFunction is the function name at the throw site.
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* @param aThrowersLineNumber is the source code line number of the throw.
*/
IO_ERROR( const wxString& aProblem, const char* aThrowersFile,
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const char* aThrowersFunction, int aThrowersLineNumber )
{
init( aProblem, aThrowersFile, aThrowersFunction, aThrowersLineNumber );
}
IO_ERROR() {}
void init( const wxString& aProblem, const char* aThrowersFile,
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const char* aThrowersFunction, int aThrowersLineNumber );
virtual const wxString Problem() const; ///< what was the problem?
virtual const wxString Where() const; ///< where did the Problem() occur?
virtual const wxString What() const; ///< A composite of Problem() and Where()
virtual ~IO_ERROR() throw () {}
protected:
wxString problem;
wxString where;
};
/**
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* A filename or source description, a problem input line, a line number, a byte
* offset, and an error message which contains the caller's report and his call
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* site information: CPP source file, function, and line number.
*
* @author Dick Hollenbeck
*/
struct PARSE_ERROR : public IO_ERROR
{
int lineNumber; ///< at which line number, 1 based index.
int byteIndex; ///< at which byte offset within the line, 1 based index
/// problem line of input [say, from a LINE_READER].
/// this is brought up in original byte format rather than wxString form, incase
/// there was a problem with the encoding, in which case converting to wxString is
/// not reliable in this context.
std::string inputLine;
/**
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* Normally called via the macro #THROW_PARSE_ERROR so that __FILE__, __FUNCTION__,
* and __LINE__ can be captured from the call site.
*/
PARSE_ERROR( const wxString& aProblem, const char* aThrowersFile,
const char* aThrowersFunction, int aThrowersLineNumber,
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const wxString& aSource, const char* aInputLine,
int aLineNumber, int aByteIndex ) :
IO_ERROR()
{
init( aProblem, aThrowersFile, aThrowersFunction, aThrowersLineNumber,
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aSource, aInputLine, aLineNumber, aByteIndex );
}
void init( const wxString& aProblem, const char* aThrowersFile,
const char* aThrowersFunction, int aThrowersLineNumber,
const wxString& aSource, const char* aInputLine,
int aLineNumber, int aByteIndex );
~PARSE_ERROR() throw () {}
const wxString ParseProblem() { return parseProblem; }
protected:
PARSE_ERROR() :
IO_ERROR(),
lineNumber( 0 ),
byteIndex( 0 )
{}
protected:
wxString parseProblem;
};
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#define THROW_PARSE_ERROR( aProblem, aSource, aInputLine, aLineNumber, aByteIndex ) \
throw PARSE_ERROR( aProblem, __FILE__, __FUNCTION__, __LINE__, aSource, aInputLine, \
aLineNumber, aByteIndex )
/**
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* Variant of #PARSE_ERROR indicating that a syntax or related error was likely caused
* by a file generated by a newer version of KiCad than this. This can be used to generate
* more informative error messages.
*/
struct FUTURE_FORMAT_ERROR : public PARSE_ERROR
{
wxString requiredVersion; ///< version or date of KiCad required to open file
FUTURE_FORMAT_ERROR( const PARSE_ERROR& aParseError, const wxString& aRequiredVersion );
~FUTURE_FORMAT_ERROR() throw () {}
};
/** @} exception_types */
#endif // KI_EXCEPTION_H_