ObjFW  Artifact [f395937f21]

Artifact f395937f216736a39e34d813f088fc46b5faf65ee7f029365b3f33f039062253:

• File src/OFMutableSet.m — part of check-in [6ce0093f8d] at 2023-04-10 19:22:32 on branch trunk — Remove OFSerialization

  While the idea sounds nice that the tag name is the class, this means the
  serialization includes whether something is mutable or immutable. This means
  doing as much as making something immutable changes the serialization, which
  can then cause issues after being deserialized. (user: js, size: 3722) [annotate] [blame] [check-ins using] [more...]

/*
 * 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.
 *
 * 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 <stdlib.h>

#import "OFMutableSet.h"
#import "OFMutableMapTableSet.h"
#import "OFString.h"

static struct {
	Class isa;
} placeholder;

@interface OFMutableSetPlaceholder: OFMutableSet
@end

@implementation OFMutableSetPlaceholder
- (instancetype)init
{
	return (id)[[OFMutableMapTableSet alloc] init];
}

- (instancetype)initWithSet: (OFSet *)set
{
	return (id)[[OFMutableMapTableSet alloc] initWithSet: set];
}

- (instancetype)initWithArray: (OFArray *)array
{
	return (id)[[OFMutableMapTableSet alloc] initWithArray: array];
}

- (instancetype)initWithObjects: (id)firstObject, ...
{
	id ret;
	va_list arguments;

	va_start(arguments, firstObject);
	ret = [[OFMutableMapTableSet alloc] initWithObject: firstObject
						 arguments: arguments];
	va_end(arguments);

	return ret;
}

- (instancetype)initWithObjects: (id const *)objects count: (size_t)count
{
	return (id)[[OFMutableMapTableSet alloc] initWithObjects: objects
							   count: count];
}

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

- (instancetype)initWithCapacity: (size_t)capacity
{
	return (id)[[OFMutableMapTableSet alloc] initWithCapacity: capacity];
}

- (instancetype)retain
{
	return self;
}

- (instancetype)autorelease
{
	return self;
}

- (void)release
{
}

- (void)dealloc
{
	OF_DEALLOC_UNSUPPORTED
}
@end

@implementation OFMutableSet
+ (void)initialize
{
	if (self == [OFMutableSet class])
		placeholder.isa = [OFMutableSetPlaceholder class];
}

+ (instancetype)alloc
{
	if (self == [OFMutableSet class])
		return (id)&placeholder;

	return [super alloc];
}

+ (instancetype)setWithCapacity: (size_t)capacity
{
	return [[[self alloc] initWithCapacity: capacity] autorelease];
}

- (instancetype)init
{
	if ([self isMemberOfClass: [OFMutableSet class]]) {
		@try {
			[self doesNotRecognizeSelector: _cmd];
			abort();
		} @catch (id e) {
			[self release];
			@throw e;
		}
	}

	return [super init];
}

- (instancetype)initWithCapacity: (size_t)capacity
{
	OF_INVALID_INIT_METHOD
}

- (id)copy
{
	return [[OFSet alloc] initWithSet: self];
}

- (void)addObject: (id)object
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)removeObject: (id)object
{
	OF_UNRECOGNIZED_SELECTOR
}

- (void)minusSet: (OFSet *)set
{
	for (id object in set)
		[self removeObject: object];
}

- (void)intersectSet: (OFSet *)set
{
	void *pool = objc_autoreleasePoolPush();
	size_t count = self.count;
	id *cArray;

	cArray = OFAllocMemory(count, sizeof(id));
	@try {
		size_t i;

		i = 0;
		for (id object in self) {
			OFAssert(i < count);
			cArray[i++] = object;
		}

		for (i = 0; i < count; i++)
			if (![set containsObject: cArray[i]])
				[self removeObject: cArray[i]];
	} @finally {
		OFFreeMemory(cArray);
	}

	objc_autoreleasePoolPop(pool);
}

- (void)unionSet: (OFSet *)set
{
	for (id object in set)
		[self addObject: object];
}

- (void)removeAllObjects
{
	void *pool = objc_autoreleasePoolPush();
	OFSet *copy = [[self copy] autorelease];

	for (id object in copy)
		[self removeObject: object];

	objc_autoreleasePoolPop(pool);
}

- (void)makeImmutable
{
}
@end