ObjFW  Artifact [017349a806]

Artifact 017349a806381adf5a6cc52fc8ede26fae79672ec2c9504f944e26325afc62fe:

• File src/exceptions/OFHashAlreadyCalculatedException.m — part of check-in [e1e7ffa903] at 2011-09-22 23:25:42 on branch trunk — Exceptions are now autoreleased.

  This is safe as an "exception loop" can't happen, since if allocating
  an exception fails, it throws an OFAllocFailedException which is
  preallocated and can always be thrown.

  So, the worst case would be that an autorelease of an exception fails,
  triggering an OFOutOfMemoryException for which there is no memory,
  resulting in an OFAllocFailedException to be thrown. (user: js, size: 1558) [annotate] [blame] [check-ins using]

/*
 * Copyright (c) 2008, 2009, 2010, 2011
 *   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"

#import "OFHashAlreadyCalculatedException.h"
#import "OFString.h"
#import "OFHash.h"

#import "OFNotImplementedException.h"

@implementation OFHashAlreadyCalculatedException
+ exceptionWithClass: (Class)class_
		hash: (OFHash*)hash
{
	return [[[self alloc] initWithClass: class_
				       hash: hash] autorelease];
}

- initWithClass: (Class)class_
{
	Class c = isa;
	[self release];
	@throw [OFNotImplementedException exceptionWithClass: c
						    selector: _cmd];
}

- initWithClass: (Class)class_
	   hash: (OFHash*)hash
{
	self = [super initWithClass: class_];

	hashObject = [hash retain];

	return self;
}

- (void)dealloc
{
	[hashObject release];

	[super dealloc];
}

- (OFString*)description
{
	if (description != nil)
		return description;

	description = [[OFString alloc] initWithFormat:
	    @"The hash has already been calculated in class %@ and thus no new "
	    @"data can be added", inClass];

	return description;
}

- (OFHash*)hashObject
{
	return hashObject;
}
@end