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mexception.h

/***************************************************************************
 *   This file is part of the MagiC++ library.                             *
 *                                                                         *
 *   Copyright (C) 1998-2001 Marko Grönroos <magi@iki.fi>                  *
 *                                                                         *
 ***************************************************************************
 *                                                                         *
 *  This library is free software; you can redistribute it and/or          *
 *  modify it under the terms of the GNU Library General Public            *
 *  License as published by the Free Software Foundation; either           *
 *  version 2 of the License, or (at your option) any later version.       *
 *                                                                         *
 *  This library 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      *
 *  Library General Public License for more details.                       *
 *                                                                         *
 *  You should have received a copy of the GNU Library General Public      *
 *  License along with this library; see the file COPYING.LIB.  If         *
 *  not, write to the Free Software Foundation, Inc., 59 Temple Place      *
 *  - Suite 330, Boston, MA 02111-1307, USA.                               *
 *                                                                         *
 ***************************************************************************/

#ifndef __MAGIC_MEXCEPTION_H__
#define __MAGIC_MEXCEPTION_H__

#include "magic/mobject.h"

namespace MagiC {
    class String;
}
using namespace MagiC;

// Exception handling macros

class Exception : public Object {
    String* mWhat;
  public:

                    Exception   (const String& what);
                    Exception   (const Exception& orig);
                    ~Exception  ();

    const String&   what        () const {return *mWhat;}
};

#define EXCEPTIONCLASS(eclass) \
class eclass : public Exception {\
public:\
    eclass (const String& what_arg) : Exception (what_arg) { }\
    virtual ~eclass () {;}\
};

//  eclass (const __string& what_arg): logic_error (what_arg) {;}

EXCEPTIONCLASS (generic_exception);
EXCEPTIONCLASS (invalid_format);
EXCEPTIONCLASS (assertion_failed);
EXCEPTIONCLASS (forwarded_failure);
EXCEPTIONCLASS (file_not_found);
EXCEPTIONCLASS (check_failed);
EXCEPTIONCLASS (out_of_bounds);
EXCEPTIONCLASS (out_of_range);
EXCEPTIONCLASS (runtime_error);

#define failtrace(expr) try {expr;} catch (Exception e) {throw forwarded_failure (format ("%s\n%%ERR: Exception forwaded at %s[%d]:%s()", (CONSTR) e.what(), __FILE__, __LINE__, __FUNCTION__));}
#define FAILTRACE failtrace

#define trywith(expr,err) try {expr;} catch (Exception e) {throw forwarded_failure (format ("%s\n%%ERR: Exception forwaded at %s[%d]:%s()\n%%ERR: %s", (CONSTR) e.what(), __FILE__, __LINE__, __FUNCTION__, (CONSTR) err));}
#define TRYWITH trywith


#endif

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