/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <stdlib.h>
#ifdef HAVE_EXECINFO_H
# include <execinfo.h>
#endif
#import "OFException.h"
#import "OFString.h"
#import "OFArray.h"
#import "autorelease.h"
@implementation OFException
+ (instancetype)exceptionWithClass: (Class)class
{
return [[[self alloc] initWithClass: class] autorelease];
}
- init
{
@try {
[self doesNotRecognizeSelector: _cmd];
} @catch (id e) {
[self release];
@throw e;
}
abort();
}
- initWithClass: (Class)class
{
self = [super init];
_inClass = class;
#ifdef HAVE_EXECINFO_H
_backtraceSize = backtrace(_backtraceBuffer,
OF_EXCEPTION_MAX_BACKTRACE_SIZE);
#endif
return self;
}
- (void)dealloc
{
[_backtrace release];
[super dealloc];
}
- (Class)inClass
{
return _inClass;
}
- (OFString*)description
{
return [OFString stringWithFormat:
@"An exception of class %@ occurred in class %@!",
object_getClass(self), _inClass];
}
- (OFArray*)backtrace
{
#ifdef HAVE_EXECINFO_H
char **symbols;
if (_backtrace != nil)
return _backtrace;
if (_backtraceSize < 1)
return nil;
symbols = backtrace_symbols(_backtraceBuffer, _backtraceSize);
@try {
int i;
_backtrace = [[OFMutableArray alloc] init];
for (i = 0; i < _backtraceSize; i++) {
void *pool = objc_autoreleasePoolPush();
OFString *symbol;
symbol = [OFString
stringWithCString: symbols[i]
encoding: OF_STRING_ENCODING_NATIVE];
[_backtrace addObject: symbol];
objc_autoreleasePoolPop(pool);
}
} @finally {
free(symbols);
}
[_backtrace makeImmutable];
return _backtrace;
#else
return nil;
#endif
}
@end