ObjFW  Artifact [190fb95780]

Artifact 190fb957803b1289c6a0f4624ca192aff12511cae0599a52b7d62ccc075c984f:

• File src/OFMutableArray_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: 7371) [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 "OFMutableArray_adjacent.h"
#import "OFArray_adjacent.h"
#import "OFDataArray.h"

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

@implementation OFMutableArray_adjacent
+ (void)initialize
{
	if (self == [OFMutableArray_adjacent class])
		[self inheritMethodsFromClass: [OFArray_adjacent class]];
}

- initWithCapacity: (size_t)capacity
{
	self = [super init];

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

	return self;
}

- (void)addObject: (id)object
{
	if (object == nil)
		@throw [OFInvalidArgumentException exception];

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

	_mutations++;
}

- (void)insertObject: (id)object
	     atIndex: (size_t)index
{
	if (object == nil)
		@throw [OFInvalidArgumentException exception];

	@try {
		[_array insertItem: &object
			   atIndex: index];
	} @catch (OFOutOfRangeException *e) {
		@throw [OFOutOfRangeException exception];
	}
	[object retain];

	_mutations++;
}

- (void)insertObjectsFromArray: (OFArray*)array
		       atIndex: (size_t)index
{
	id *objects = [array objects];
	size_t i, count = [array count];

	@try {
		[_array insertItems: objects
			    atIndex: index
			      count: count];
	} @catch (OFOutOfRangeException *e) {
		@throw [OFOutOfRangeException exception];
	}

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

	_mutations++;
}

- (void)replaceObject: (id)oldObject
	   withObject: (id)newObject
{
	id *objects;
	size_t i, count;

	if (oldObject == nil || newObject == nil)
		@throw [OFInvalidArgumentException exception];

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

	for (i = 0; i < count; i++) {
		if ([objects[i] isEqual: oldObject]) {
			[newObject retain];
			[objects[i] release];
			objects[i] = newObject;

			return;
		}
	}
}

- (void)replaceObjectAtIndex: (size_t)index
		  withObject: (id)object
{
	id *objects;
	id oldObject;

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

	objects = [_array items];

	if (index >= [_array count])
		@throw [OFOutOfRangeException exception];

	oldObject = objects[index];
	objects[index] = [object retain];
	[oldObject release];
}

- (void)replaceObjectIdenticalTo: (id)oldObject
		      withObject: (id)newObject
{
	id *objects;
	size_t i, count;

	if (oldObject == nil || newObject == nil)
		@throw [OFInvalidArgumentException exception];

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

	for (i = 0; i < count; i++) {
		if (objects[i] == oldObject) {
			[newObject retain];
			[objects[i] release];
			objects[i] = newObject;

			return;
		}
	}
}

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

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

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

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

			[_array removeItemAtIndex: i];
			_mutations++;

			[object release];

			return;
		}
	}
}

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

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

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

	for (i = 0; i < count; i++) {
		if (objects[i] == object) {
			[_array removeItemAtIndex: i];
			_mutations++;

			[object release];

			return;
		}
	}
}

- (void)removeObjectAtIndex: (size_t)index
{
	id object = [self objectAtIndex: index];
	[_array removeItemAtIndex: index];
	[object release];

	_mutations++;
}

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

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

	[_array removeAllItems];
}

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

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

	copy = [self allocMemoryWithSize: sizeof(*copy)
				   count: range.length];
	memcpy(copy, objects + range.location, range.length * sizeof(id));

	@try {
		[_array removeItemsInRange: range];
		_mutations++;

		for (i = 0; i < range.length; i++)
			[copy[i] release];
	} @finally {
		[self freeMemory: copy];
	}
}

- (void)removeLastObject
{
	size_t count = [_array count];
	id object;

	if (count == 0)
		return;

	object = [self objectAtIndex: count - 1];
	[_array removeLastItem];
	[object release];

	_mutations++;
}

- (void)exchangeObjectAtIndex: (size_t)index1
	    withObjectAtIndex: (size_t)index2
{
	id *objects = [_array items];
	size_t count = [_array count];
	id tmp;

	if (index1 >= count || index2 >= count)
		@throw [OFOutOfRangeException exception];

	tmp = objects[index1];
	objects[index1] = objects[index2];
	objects[index2] = tmp;
}

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

	if (count == 0 || count == 1)
		return;

	for (i = 0, j = count - 1; i < j; i++, j--) {
		id tmp = objects[i];
		objects[i] = objects[j];
		objects[j] = tmp;
	}
}

- (int)countByEnumeratingWithState: (of_fast_enumeration_state_t*)state
			   objects: (id*)objects
			     count: (int)count
{
	/*
	 * Super means the implementation from OFArray here, as OFMutableArray
	 * does not reimplement it. As OFArray_adjacent does not reimplement it
	 * either, this is fine.
	 */
	int ret = [super countByEnumeratingWithState: state
					     objects: objects
					       count: count];

	state->mutationsPtr = &_mutations;

	return ret;
}

- (OFEnumerator*)objectEnumerator
{
	return [[[OFArrayEnumerator alloc]
	    initWithArray: self
	     mutationsPtr: &_mutations] autorelease];
}

#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;
	unsigned long mutations = _mutations;

	for (i = 0; i < count && !stop; i++) {
		if (_mutations != mutations)
			@throw [OFEnumerationMutationException
			    exceptionWithObject: self];

		block(objects[i], i, &stop);
	}
}

- (void)replaceObjectsUsingBlock: (of_array_replace_block_t)block
{
	id *objects = [_array items];
	size_t i, count = [_array count];
	unsigned long mutations = _mutations;

	for (i = 0; i < count; i++) {
		id new;

		if (_mutations != mutations)
			@throw [OFEnumerationMutationException
			    exceptionWithObject: self];

		new = block(objects[i], i);

		if (new == nil)
			@throw [OFInvalidArgumentException exception];

		if (new != objects[i]) {
			[objects[i] release];
			objects[i] = [new retain];
		}
	}
}
#endif

- (void)makeImmutable
{
	object_setClass(self, [OFArray_adjacent class]);
}
@end