ObjFW  Artifact [213aaaa47c]

Artifact 213aaaa47cb982516a305a63b738276e5831b8e91dbdf8a60e51eded49600cb4:

• File src/OFArray_adjacent.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: 6817) [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 <stdarg.h>

#import "OFArray_adjacent.h"
#import "OFMutableArray_adjacent.h"
#import "OFArray_adjacentSubarray.h"
#import "OFDataArray.h"
#import "OFString.h"
#import "OFXMLElement.h"

#import "OFEnumerationMutationException.h"
#import "OFInvalidArgumentException.h"
#import "OFOutOfRangeException.h"

#import "autorelease.h"
#import "macros.h"

@implementation OFArray_adjacent
- init
{
	self = [super init];

	@try {
		_array = [[OFDataArray alloc] initWithItemSize: sizeof(id)];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- initWithObject: (id)object
{
	self = [self init];

	@try {
		if (object == nil)
			@throw [OFInvalidArgumentException exception];

		[_array addItem: &object];
		[object retain];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- initWithObject: (id)firstObject
       arguments: (va_list)arguments
{
	self = [self init];

	@try {
		id object;

		[_array addItem: &firstObject];
		[firstObject retain];

		while ((object = va_arg(arguments, id)) != nil) {
			[_array addItem: &object];
			[object retain];
		}
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- initWithArray: (OFArray*)array
{
	id *objects;
	size_t i, count;

	self = [super init];

	if (array == nil)
		return self;

	@try {
		objects = [array objects];
		count = [array count];

		_array = [[OFDataArray alloc] initWithItemSize: sizeof(id)
						      capacity: count];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	@try {
		for (i = 0; i < count; i++)
			[objects[i] retain];

		[_array addItems: objects
			   count: count];
	} @catch (id e) {
		for (i = 0; i < count; i++)
			[objects[i] release];

		/* Prevent double-release of objects */
		[_array release];
		_array = nil;

		[self release];
		@throw e;
	}

	return self;
}

- initWithObjects: (id const*)objects
	    count: (size_t)count
{
	self = [self init];

	@try {
		size_t i;
		bool ok = true;

		for (i = 0; i < count; i++) {
			if (objects[i] == nil)
				ok = false;

			[objects[i] retain];
		}

		if (!ok)
			@throw [OFInvalidArgumentException exception];

		[_array addItems: objects
			   count: count];
	} @catch (id e) {
		size_t i;

		for (i = 0; i < count; i++)
			[objects[i] release];

		[self release];
		@throw e;
	}

	return self;
}

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

	@try {
		void *pool = objc_autoreleasePoolPush();
		OFEnumerator *enumerator;
		OFXMLElement *child;

		if ((![[element name] isEqual: @"OFArray"] &&
		    ![[element name] isEqual: @"OFMutableArray"]) ||
		    ![[element namespace] isEqual: OF_SERIALIZATION_NS])
			@throw [OFInvalidArgumentException exception];

		enumerator = [[element elementsForNamespace:
		    OF_SERIALIZATION_NS] objectEnumerator];

		while ((child = [enumerator nextObject]) != nil) {
			void *pool2 = objc_autoreleasePoolPush();
			id object;

			object = [child objectByDeserializing];
			[_array addItem: &object];
			[object retain];

			objc_autoreleasePoolPop(pool2);
		}

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

	return self;
}

- (size_t)count
{
	return [_array count];
}

- (id*)objects
{
	return [_array items];
}

- (id)objectAtIndex: (size_t)index
{
	id ret;

	@try {
		ret = *((id*)[_array itemAtIndex: index]);
	} @catch (OFOutOfRangeException *e) {
		@throw [OFOutOfRangeException exception];
	}

	return ret;
}

- (id)objectAtIndexedSubscript: (size_t)index
{
	id ret;

	@try {
		ret = *((id*)[_array itemAtIndex: index]);
	} @catch (OFOutOfRangeException *e) {
		@throw [OFOutOfRangeException exception];
	}

	return ret;
}

- (void)getObjects: (id*)buffer
	   inRange: (of_range_t)range
{
	id *objects = [_array items];
	size_t i, count = [_array count];

	if (range.length > SIZE_MAX - range.location ||
	    range.location + range.length > count)
		@throw [OFOutOfRangeException exception];

	for (i = 0; i < range.length; i++)
		buffer[i] = objects[range.location + i];
}

- (size_t)indexOfObject: (id)object
{
	id *objects;
	size_t i, count;

	if (object == nil)
		return OF_NOT_FOUND;

	objects = [_array items];
	count = [_array count];

	for (i = 0; i < count; i++)
		if ([objects[i] isEqual: object])
			return i;

	return OF_NOT_FOUND;
}

- (size_t)indexOfObjectIdenticalTo: (id)object
{
	id *objects;
	size_t i, count;

	if (object == nil)
		return OF_NOT_FOUND;

	objects = [_array items];
	count = [_array count];

	for (i = 0; i < count; i++)
		if (objects[i] == object)
			return i;

	return OF_NOT_FOUND;
}


- (OFArray*)objectsInRange: (of_range_t)range
{
	if (range.length > SIZE_MAX - range.location ||
	    range.location + range.length > [_array count])
		@throw [OFOutOfRangeException exception];

	if ([self isKindOfClass: [OFMutableArray class]])
		return [OFArray
		    arrayWithObjects: (id*)[_array items] + range.location
			       count: range.length];

	return [OFArray_adjacentSubarray arrayWithArray: self
						  range: range];
}

- (bool)isEqual: (id)object
{
	OFArray *otherArray;
	id *objects, *otherObjects;
	size_t i, count;

	if ([object class] != [OFArray_adjacent class] &&
	    [object class] != [OFMutableArray_adjacent class] &&
	    [object class] != [OFArray_adjacentSubarray class])
		return [super isEqual: object];

	otherArray = object;

	count = [_array count];

	if (count != [otherArray count])
		return false;

	objects = [_array items];
	otherObjects = [otherArray objects];

	for (i = 0; i < count; i++)
		if (![objects[i] isEqual: otherObjects[i]])
			return false;

	return true;
}

- (uint32_t)hash
{
	id *objects = [_array items];
	size_t i, count = [_array count];
	uint32_t hash;

	OF_HASH_INIT(hash);

	for (i = 0; i < count; i++)
		OF_HASH_ADD_HASH(hash, [objects[i] hash]);

	OF_HASH_FINALIZE(hash);

	return hash;
}

#ifdef OF_HAVE_BLOCKS
- (void)enumerateObjectsUsingBlock: (of_array_enumeration_block_t)block
{
	id *objects = [_array items];
	size_t i, count = [_array count];
	bool stop = false;

	for (i = 0; i < count && !stop; i++)
		block(objects[i], i, &stop);
}
#endif

- (void)dealloc
{
	id *objects = [_array items];
	size_t i, count = [_array count];

	for (i = 0; i < count; i++)
		[objects[i] release];

	[_array release];

	[super dealloc];
}
@end