ObjFW  Diff

/*
 * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
 * Copyright (c) 2008-2023 Jonathan Schleifer <js@nil.im>
 *
 * 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.
 *

#include <stdlib.h>

#import "OFSet.h"
#import "OFArray.h"
#import "OFMapTableSet.h"
#import "OFNull.h"
#import "OFString.h"
#import "OFXMLElement.h"

static struct {
	Class isa;
} placeholder;

@interface OFSetPlaceholder: OFSet
@end

- (instancetype)initWithObject: (id)firstObject arguments: (va_list)arguments
{
	return (id)[[OFMapTableSet alloc] initWithObject: firstObject
					       arguments: arguments];
}

- (instancetype)initWithSerialization: (OFXMLElement *)element
{
	return (id)[[OFMapTableSet alloc] initWithSerialization: element];
}

- (instancetype)retain
{
	return self;
}

- (instancetype)autorelease
{

}

- (instancetype)initWithObject: (id)firstObject arguments: (va_list)arguments
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)initWithSerialization: (OFXMLElement *)element
{
	OF_INVALID_INIT_METHOD
}

- (size_t)count
{
	OF_UNRECOGNIZED_SELECTOR
}

- (id)valueForKey: (OFString *)key
{

	OF_UNRECOGNIZED_SELECTOR
}

- (int)countByEnumeratingWithState: (OFFastEnumerationState *)state
			   objects: (id *)objects
			     count: (int)count
{
	static unsigned long dummyMutations;
	OFEnumerator *enumerator;
	int i;

	memcpy(&enumerator, state->extra, sizeof(enumerator));

	if (enumerator == nil) {
		enumerator = [self objectEnumerator];
		memcpy(state->extra, &enumerator, sizeof(enumerator));
	}

	state->itemsPtr = objects;
	state->mutationsPtr = (unsigned long *)self;
	state->mutationsPtr = &dummyMutations;

	for (i = 0; i < count; i++) {
		id object = [enumerator nextObject];

		if (object == nil)
			return i;

	for (id object in self)
		if ([set containsObject: object])
			return true;

	return false;
}

- (OFXMLElement *)XMLElementBySerializing
{
	void *pool = objc_autoreleasePoolPush();
	OFXMLElement *element;

	if ([self isKindOfClass: [OFMutableSet class]])
		element = [OFXMLElement elementWithName: @"OFMutableSet"
					      namespace: OFSerializationNS];
	else
		element = [OFXMLElement elementWithName: @"OFSet"
					      namespace: OFSerializationNS];

	for (id <OFSerialization> object in self) {
		void *pool2 = objc_autoreleasePoolPush();
		[element addChild: object.XMLElementBySerializing];
		objc_autoreleasePoolPop(pool2);
	}

	[element retain];

	objc_autoreleasePoolPop(pool);

	return [element autorelease];
}

- (OFSet *)setByAddingObjectsFromSet: (OFSet *)set
{
	OFMutableSet *new = [[self mutableCopy] autorelease];
	[new unionSet: set];
	[new makeImmutable];
	return new;
}