ObjFW  Artifact [345af0db6d]

Artifact 345af0db6db8186f8717929d2ebcbfa316aff4290330d8f9bca0e8f90596d0b7:

• File src/OFXMLComment.m — part of check-in [3d16a30f41] at 2013-06-22 12:12:36 on branch trunk — Rework exceptions.

  This mostly removes the argument for the class in which the exception
  occurred. As backtraces were recently added for all platforms, the
  passed class does not give any extra information on where the exception
  occurred anymore.

  This also removes a few other arguments which were not too helpful. In
  the past, the idea was to pass as many arguments as possible so that it
  is easier to find the origin of the exception. However, as backtraces
  are a much better way to find the origin, those are not useful anymore
  and just make the exception more cumbersome to use. The rule is now to
  only pass arguments that might help in recovering from the exception or
  provide information that is otherwise not easily accessible. (user: js, size: 2888) [annotate] [blame] [check-ins using]

/*
 * 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 <string.h>

#import "OFXMLComment.h"
#import "OFString.h"
#import "OFXMLElement.h"

#import "OFInvalidArgumentException.h"

#import "autorelease.h"

@implementation OFXMLComment
+ (instancetype)commentWithString: (OFString*)string
{
	return [[[self alloc] initWithString: string] autorelease];
}

- initWithString: (OFString*)string
{
	self = [super init];

	@try {
		_comment = [string copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- initWithSerialization: (OFXMLElement*)element
{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();

		if (![[element name] isEqual: [self className]] ||
		    ![[element namespace] isEqual: OF_SERIALIZATION_NS])
			@throw [OFInvalidArgumentException exception];

		_comment = [[element stringValue] copy];

		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[_comment release];

	[super dealloc];
}

- (bool)isEqual: (id)object
{
	OFXMLComment *comment;

	if (![object isKindOfClass: [OFXMLComment class]])
		return false;

	comment = object;

	return ([comment->_comment isEqual: _comment]);
}

- (uint32_t)hash
{
	return [_comment hash];
}

- (OFString*)stringValue
{
	return @"";
}

- (OFString*)XMLString
{
	return [OFString stringWithFormat: @"<!--%@-->", _comment];
}

- (OFString*)XMLStringWithIndentation: (unsigned int)indentation
{
	return [OFString stringWithFormat: @"<!--%@-->", _comment];
}

- (OFString*)XMLStringWithIndentation: (unsigned int)indentation
				level: (unsigned int)level
{
	OFString *ret;

	if (indentation > 0 && level > 0) {
		char *whitespaces = [self allocMemoryWithSize:
		    (level * indentation) + 1];
		memset(whitespaces, ' ', level * indentation);
		whitespaces[level * indentation] = 0;

		@try {
			ret = [OFString stringWithFormat: @"%s<!--%@-->",
							  whitespaces,
							  _comment];
		} @finally {
			[self freeMemory: whitespaces];
		}
	} else
		ret = [OFString stringWithFormat: @"<!--%@-->", _comment];

	return ret;
}

- (OFString*)description
{
	return [OFString stringWithFormat: @"<!--%@-->", _comment];
}

- (OFXMLElement*)XMLElementBySerializing
{
	return [OFXMLElement elementWithName: [self className]
				   namespace: OF_SERIALIZATION_NS
				 stringValue: _comment];
}
@end