Exception.h

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//
// $Id: Exception.h,v 1.8 2007/03/08 19:59:21 will_mason Exp $
//
// vi: set ft=objc:

/*
 * ObjectiveLib - a library of containers and algorithms for Objective-C
 *
 * Copyright (c) 2004-2007
 * Will Mason
 *
 * Portions:
 *
 * Copyright (c) 1994
 * Hewlett-Packard Company
 *
 * Copyright (c) 1996,1997
 * Silicon Graphics Computer Systems, Inc.
 *
 * Copyright (c) 1997
 * Moscow Center for SPARC Technology
 *
 * Copyright (c) 1999 
 * Boris Fomitchev
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * You may contact the author at will_mason@users.sourceforge.net.
 */

#if !defined(EXCEPTION_OL_GUARD)
#if !defined(OL_GENERATING_DOCUMENTATION)
#define EXCEPTION_OL_GUARD
#endif

#include <ObjectiveLib/ObjectBase.h>

#if defined(OL_NO_OPENSTEP)
extern OLConstantString* const OLInputOutputException;
#else
extern NSString* const OLInputOutputException;
#endif

#if defined(OL_NO_OPENSTEP)
extern OLConstantString* const OLEndOfStreamException;
#else
extern NSString* const OLEndOfStreamException;
#endif

#if defined(OL_NO_OPENSTEP)
extern OLConstantString* const OLSocketException;
#else
extern NSString* const OLSocketException;
#endif

#if defined(OL_NO_OPENSTEP)
extern OLConstantString* const OLClassNotFoundException;
#else
extern NSString* const OLClassNotFoundException;
#endif

#if defined(OL_NO_OPENSTEP)

#include <setjmp.h>
#include <stdarg.h>

extern OLConstantString* const OLInvalidArgumentException;

extern OLConstantString* const OLGenericException;

@interface OLException : Object
{
@protected
    char*           type;

    char*           message;
}

+ (void) raiseType: (const char*)nm message: (const char*)msg, ...;

+ (void) raiseTypeString: (OLConstantString*)nm messageString: (OLConstantString*)msg, ...;

/* @{ */
- (id) initWithType: (const char*)nm message: (const char*)msg arguments: (va_list)args;

- (id) initWithType: (const char*)nm message: (const char*)msg, ...;

- (id) free;
/* @} */

- (const char*) message;

- (const char*) type;

- (void) raise;

@end

typedef struct _OLCatchInfo
{
    struct _OLCatchInfo*    next;

    jmp_buf                 jumpInfo;

    OLException*            exception;
} OLCatchInfo; 
extern void OLPushCatchInfo(OLCatchInfo* info);

extern void OLPopCatchInfo();

#define OL_TRY \
    { \
        OLCatchInfo __currentCatchInfo; \
        OLPushCatchInfo(&__currentCatchInfo); \
        if (!setjmp(__currentCatchInfo.jumpInfo)) \
        {

#define OL_CATCH \
            OLPopCatchInfo(); \
        } \
        else \
        { \
            OLException* localException =  __currentCatchInfo.exception; \
            {

#define OL_END_CATCH \
            } \
            [localException free]; \
        } \
    }

#define OL_TRY_RETURN(val) \
        { \
            typeof(val) __tryReturnValue = val; \
            OLPopCatchInfo(); \
            return __tryReturnValue; \
        }

#define OL_TRY_ABANDON \
        OLPopCatchInfo(); \
        return;

#define OL_CATCH_RETURN(val) \
            { \
                typeof(val) __catchReturnValue = val; \
                [localException free]; \
                return __catchReturnValue; \
            }

#define OL_CATCH_ABANDON \
            [localException free]; \
            return 

#define OL_CATCH_RAISE(typ, ...) \
            [localException free]; \
            [OLException raise: typ message: __VA_ARGS__]

#define OL_CATCH_RAISE_STRING(typ, ...) \
            [localException free]; \
            [OLException raiseTypeString: typ messageString: __VAR_ARGS__]

#endif

#endif

---

Generated Sun Apr 22 15:17:58 2007, © 2004-2007 Will Mason