/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019, 2020
* 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>
#include <assert.h>
#import "OFMutableSet.h"
#import "OFMutableMapTableSet.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)initWithSerialization: (OFXMLElement *)element
{
return (id)[[OFMutableMapTableSet alloc]
initWithSerialization: element];
}
- (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 = [self allocMemoryWithSize: sizeof(id)
count: count];
@try {
size_t i;
i = 0;
for (id object in self) {
assert(i < count);
cArray[i++] = object;
}
for (i = 0; i < count; i++)
if (![set containsObject: cArray[i]])
[self removeObject: cArray[i]];
} @finally {
[self freeMemory: 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