ObjFW  Diff

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

OF_DIRECT_MEMBERS
@interface OFListEnumerator: OFEnumerator
{
	OFList *_list;
	of_list_object_t *_Nullable _current;
	OFListItem *_Nullable _current;
	unsigned long _mutations;
	unsigned long *_Nullable _mutationsPtr;
}

- (instancetype)initWithList: (OFList *)list
	    mutationsPointer: (unsigned long *)mutationsPtr;
@end

@implementation OFList
@synthesize firstListObject = _firstListObject;
@synthesize firstListItem = _firstListItem, lastListItem = _lastListItem;
@synthesize lastListObject = _lastListObject;

+ (instancetype)list
{
	return [[[self alloc] init] autorelease];
}

- (instancetype)initWithSerialization: (OFXMLElement *)element

	}

	return self;
}

- (void)dealloc
{
	of_list_object_t *next;
	OFListItem *next;

	for (of_list_object_t *iter = _firstListObject;
	    iter != NULL; iter = next) {
	for (OFListItem *iter = _firstListItem; iter != NULL; iter = next) {
		[iter->object release];
		next = iter->next;
		free(iter);
	}

	[super dealloc];
}

- (of_list_object_t *)appendObject: (id)object
- (OFListItem *)appendObject: (id)object
{
	of_list_object_t *listObject;
	OFListItem *listItem;

	listObject = of_alloc(1, sizeof(of_list_object_t));
	listObject->object = [object retain];
	listObject->next = NULL;
	listObject->previous = _lastListObject;
	listItem = of_alloc(1, sizeof(OFListItem));
	listItem->object = [object retain];
	listItem->next = NULL;
	listItem->previous = _lastListItem;

	if (_lastListObject != NULL)
		_lastListObject->next = listObject;
	if (_lastListItem != NULL)
		_lastListItem->next = listItem;

	_lastListObject = listObject;
	_lastListItem = listItem;

	if (_firstListObject == NULL)
		_firstListObject = listObject;
	if (_firstListItem == NULL)
		_firstListItem = listItem;

	_count++;
	_mutations++;

	return listObject;
	return listItem;
}

- (of_list_object_t *)prependObject: (id)object
- (OFListItem *)prependObject: (id)object
{
	of_list_object_t *listObject;
	OFListItem *listItem = of_alloc(1, sizeof(OFListItem));

	listObject = of_alloc(1, sizeof(of_list_object_t));
	listObject->object = [object retain];
	listObject->next = _firstListObject;
	listObject->previous = NULL;
	listItem->object = [object retain];
	listItem->next = _firstListItem;
	listItem->previous = NULL;

	if (_firstListObject != NULL)
		_firstListObject->previous = listObject;
	if (_firstListItem != NULL)
		_firstListItem->previous = listItem;

	_firstListObject = listObject;
	if (_lastListObject == NULL)
		_lastListObject = listObject;
	_firstListItem = listItem;
	if (_lastListItem == NULL)
		_lastListItem = listItem;

	_count++;
	_mutations++;

	return listObject;
	return listItem;
}

- (of_list_object_t *)insertObject: (id)object
		  beforeListObject: (of_list_object_t *)listObject
- (OFListItem *)insertObject: (id)object
	      beforeListItem: (OFListItem *)listItem
{
	of_list_object_t *newListObject;
	OFListItem *newListItem = of_alloc(1, sizeof(OFListItem));

	newListObject = of_alloc(1, sizeof(of_list_object_t));
	newListObject->object = [object retain];
	newListObject->next = listObject;
	newListObject->previous = listObject->previous;
	newListItem->object = [object retain];
	newListItem->next = listItem;
	newListItem->previous = listItem->previous;

	if (listObject->previous != NULL)
		listObject->previous->next = newListObject;
	if (listItem->previous != NULL)
		listItem->previous->next = newListItem;

	listObject->previous = newListObject;
	listItem->previous = newListItem;

	if (listObject == _firstListObject)
		_firstListObject = newListObject;
	if (listItem == _firstListItem)
		_firstListItem = newListItem;

	_count++;
	_mutations++;

	return newListObject;
	return newListItem;
}

- (of_list_object_t *)insertObject: (id)object
		   afterListObject: (of_list_object_t *)listObject
- (OFListItem *)insertObject: (id)object
	       afterListItem: (OFListItem *)listItem
{
	of_list_object_t *newListObject;
	OFListItem *newListItem = of_alloc(1, sizeof(OFListItem));

	newListObject = of_alloc(1, sizeof(of_list_object_t));
	newListObject->object = [object retain];
	newListObject->next = listObject->next;
	newListObject->previous = listObject;
	newListItem->object = [object retain];
	newListItem->next = listItem->next;
	newListItem->previous = listItem;

	if (listObject->next != NULL)
		listObject->next->previous = newListObject;
	if (listItem->next != NULL)
		listItem->next->previous = newListItem;

	listObject->next = newListObject;
	listItem->next = newListItem;

	if (listObject == _lastListObject)
		_lastListObject = newListObject;
	if (listItem == _lastListItem)
		_lastListItem = newListItem;

	_count++;
	_mutations++;

	return newListObject;
	return newListItem;
}

- (void)removeListObject: (of_list_object_t *)listObject
- (void)removeListItem: (OFListItem *)listItem
{
	if (listObject->previous != NULL)
		listObject->previous->next = listObject->next;
	if (listObject->next != NULL)
		listObject->next->previous = listObject->previous;
	if (listItem->previous != NULL)
		listItem->previous->next = listItem->next;
	if (listItem->next != NULL)
		listItem->next->previous = listItem->previous;

	if (_firstListObject == listObject)
		_firstListObject = listObject->next;
	if (_lastListObject == listObject)
		_lastListObject = listObject->previous;
	if (_firstListItem == listItem)
		_firstListItem = listItem->next;
	if (_lastListItem == listItem)
		_lastListItem = listItem->previous;

	_count--;
	_mutations++;

	[listObject->object release];
	free(listObject);
	[listItem->object release];
	free(listItem);
}

- (id)firstObject
{
	return (_firstListObject != NULL ? _firstListObject->object : nil);
	return (_firstListItem != NULL ? _firstListItem->object : nil);
}

- (id)lastObject
{
	return (_lastListObject != NULL ? _lastListObject->object : nil);
	return (_lastListItem != NULL ? _lastListItem->object : nil);
}

- (size_t)count
{
	return _count;
}

- (bool)isEqual: (id)object
{
	OFList *list;
	of_list_object_t *iter, *iter2;
	OFListItem *iter, *iter2;

	if (object == self)
		return true;

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

	list = object;

	if (list.count != _count)
		return false;

	for (iter = _firstListObject, iter2 = list.firstListObject;
	for (iter = _firstListItem, iter2 = list.firstListItem;
	    iter != NULL && iter2 != NULL;
	    iter = iter->next, iter2 = iter2->next)
		if (![iter->object isEqual: iter2->object])
			return false;

	/* One is bigger than the other even though we checked the count */
	assert(iter == NULL && iter2 == NULL);

	return true;
}

- (bool)containsObject: (id)object
{
	if (_count == 0)
		return false;

	for (of_list_object_t *iter = _firstListObject;
	    iter != NULL; iter = iter->next)
	for (OFListItem *iter = _firstListItem; iter != NULL; iter = iter->next)
		if ([iter->object isEqual: object])
			return true;

	return false;
}

- (bool)containsObjectIdenticalTo: (id)object
{
	if (_count == 0)
		return false;

	for (of_list_object_t *iter = _firstListObject;
	    iter != NULL; iter = iter->next)
	for (OFListItem *iter = _firstListItem; iter != NULL; iter = iter->next)
		if (iter->object == object)
			return true;

	return false;
}

- (void)removeAllObjects
{
	of_list_object_t *next;
	OFListItem *next;

	_mutations++;

	for (of_list_object_t *iter = _firstListObject;
	    iter != NULL; iter = next) {
	for (OFListItem *iter = _firstListItem; iter != NULL; iter = next) {
		[iter->object release];
		next = iter->next;
		free(iter);
	}

	_firstListObject = _lastListObject = NULL;
	_firstListItem = _lastListItem = NULL;
}

- (id)copy
{
	OFList *copy = [[[self class] alloc] init];
	of_list_object_t *listObject, *previous;
	OFListItem *listItem, *previous;

	listObject = NULL;
	listItem = NULL;
	previous = NULL;

	@try {
		for (of_list_object_t *iter = _firstListObject;
		for (OFListItem *iter = _firstListItem;
		    iter != NULL; iter = iter->next) {
			listObject = of_alloc(1, sizeof(of_list_object_t));
			listObject->object = [iter->object retain];
			listObject->next = NULL;
			listObject->previous = previous;
			listItem = of_alloc(1, sizeof(OFListItem));
			listItem->object = [iter->object retain];
			listItem->next = NULL;
			listItem->previous = previous;

			if (copy->_firstListObject == NULL)
				copy->_firstListObject = listObject;
			if (copy->_firstListItem == NULL)
				copy->_firstListItem = listItem;
			if (previous != NULL)
				previous->next = listObject;
				previous->next = listItem;

			copy->_count++;

			previous = listObject;
			previous = listItem;
		}
	} @catch (id e) {
		[copy release];
		@throw e;
	}

	copy->_lastListObject = listObject;
	copy->_lastListItem = listItem;

	return copy;
}

- (unsigned long)hash
{
	uint32_t hash;

	OF_HASH_INIT(hash);

	for (of_list_object_t *iter = _firstListObject;
	for (OFListItem *iter = _firstListItem;
	    iter != NULL; iter = iter->next)
		OF_HASH_ADD_HASH(hash, [iter->object hash]);

	OF_HASH_FINALIZE(hash);

	return hash;
}

- (OFString *)description
{
	OFMutableString *ret;

	if (_count == 0)
		return @"[]";

	ret = [OFMutableString stringWithString: @"[\n"];

	for (of_list_object_t *iter = _firstListObject;
	for (OFListItem *iter = _firstListItem;
	    iter != NULL; iter = iter->next) {
		void *pool = objc_autoreleasePoolPush();

		[ret appendString: [iter->object description]];

		if (iter->next != NULL)
			[ret appendString: @",\n"];

- (OFXMLElement *)XMLElementBySerializing
{
	OFXMLElement *element =
	    [OFXMLElement elementWithName: self.className
				namespace: OF_SERIALIZATION_NS];

	for (of_list_object_t *iter = _firstListObject;
	for (OFListItem *iter = _firstListItem;
	    iter != NULL; iter = iter->next) {
		void *pool = objc_autoreleasePoolPush();

		[element addChild: [iter->object XMLElementBySerializing]];

		objc_autoreleasePoolPop(pool);
	}

	return element;
}

- (int)countByEnumeratingWithState: (OFFastEnumerationState *)state
			   objects: (id *)objects
			     count: (int)count
{
	of_list_object_t *listObject;
	OFListItem *listItem;

	memcpy(&listObject, state->extra, sizeof(listObject));
	memcpy(&listItem, state->extra, sizeof(listItem));

	state->itemsPtr = objects;
	state->mutationsPtr = &_mutations;

	if (state->state == 0) {
		listObject = _firstListObject;
		listItem = _firstListItem;
		state->state = 1;
	}

	for (int i = 0; i < count; i++) {
		if (listObject == NULL)
		if (listItem == NULL)
			return i;

		objects[i] = listObject->object;
		listObject = listObject->next;
		objects[i] = listItem->object;
		listItem = listItem->next;
	}

	memcpy(state->extra, &listObject, sizeof(listObject));
	memcpy(state->extra, &listItem, sizeof(listItem));

	return count;
}

- (OFEnumerator *)objectEnumerator
{
	return [[[OFListEnumerator alloc] initWithList: self
				      mutationsPointer: &_mutations]
	    autorelease];
}
@end

@implementation OFListEnumerator
- (instancetype)initWithList: (OFList *)list
	    mutationsPointer: (unsigned long *)mutationsPtr
{
	self = [super init];

	_list = [list retain];
	_current = _list.firstListObject;
	_current = _list.firstListItem;
	_mutations = *mutationsPtr;
	_mutationsPtr = mutationsPtr;

	return self;
}

- (void)dealloc