/*
* 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 <stdlib.h>
#import "OFSet.h"
#import "OFSet_hashtable.h"
#import "OFString.h"
#import "OFXMLElement.h"
#import "autorelease.h"
static struct {
Class isa;
} placeholder;
@interface OFSet_placeholder: OFSet
@end
@implementation OFSet_placeholder
- init
{
return (id)[[OFSet_hashtable alloc] init];
}
- initWithSet: (OFSet*)set
{
return (id)[[OFSet_hashtable alloc] initWithSet: set];
}
- initWithArray: (OFArray*)array
{
return (id)[[OFSet_hashtable alloc] initWithArray: array];
}
- initWithObjects: (id)firstObject, ...
{
id ret;
va_list arguments;
va_start(arguments, firstObject);
ret = [[OFSet_hashtable alloc] initWithObject: firstObject
arguments: arguments];
va_end(arguments);
return ret;
}
- initWithObjects: (id const*)objects
count: (size_t)count
{
return (id)[[OFSet_hashtable alloc] initWithObjects: objects
count: count];
}
- initWithObject: (id)firstObject
arguments: (va_list)arguments
{
return (id)[[OFSet_hashtable alloc] initWithObject: firstObject
arguments: arguments];
}
- initWithSerialization: (OFXMLElement*)element
{
return (id)[[OFSet_hashtable alloc] initWithSerialization: element];
}
- retain
{
return self;
}
- autorelease
{
return self;
}
- (void)release
{
}
- (void)dealloc
{
[self doesNotRecognizeSelector: _cmd];
abort();
/* Get rid of a stupid warning */
[super dealloc];
}
@end
@implementation OFSet
+ (void)initialize
{
if (self == [OFSet class])
placeholder.isa = [OFSet_placeholder class];
}
+ alloc
{
if (self == [OFSet class])
return (id)&placeholder;
return [super alloc];
}
+ (instancetype)set
{
return [[[self alloc] init] autorelease];
}
+ (instancetype)setWithSet: (OFSet*)set
{
return [[[self alloc] initWithSet: set] autorelease];
}
+ (instancetype)setWithArray: (OFArray*)array
{
return [[[self alloc] initWithArray: array] autorelease];
}
+ (instancetype)setWithObjects: (id)firstObject, ...
{
id ret;
va_list arguments;
va_start(arguments, firstObject);
ret = [[[self alloc] initWithObject: firstObject
arguments: arguments] autorelease];
va_end(arguments);
return ret;
}
+ (instancetype)setWithObjects: (id const*)objects
count: (size_t)count
{
return [[[self alloc] initWithObjects: objects
count: count] autorelease];
}
- init
{
if (object_getClass(self) == [OFSet class]) {
@try {
[self doesNotRecognizeSelector: _cmd];
abort();
} @catch (id e) {
[self release];
@throw e;
}
}
return [super init];
}
- initWithSet: (OFSet*)set
{
@try {
[self doesNotRecognizeSelector: _cmd];
abort();
} @catch (id e) {
[self release];
@throw e;
}
}
- initWithArray: (OFArray*)array
{
@try {
[self doesNotRecognizeSelector: _cmd];
abort();
} @catch (id e) {
[self release];
@throw e;
}
}
- initWithObjects: (id const*)objects
count: (size_t)count
{
@try {
[self doesNotRecognizeSelector: _cmd];
abort();
} @catch (id e) {
[self release];
@throw e;
}
}
- (id)initWithObjects: (id)firstObject, ...
{
id ret;
va_list arguments;
va_start(arguments, firstObject);
ret = [self initWithObject: firstObject
arguments: arguments];
va_end(arguments);
return ret;
}
- initWithObject: (id)firstObject
arguments: (va_list)arguments
{
@try {
[self doesNotRecognizeSelector: _cmd];
abort();
} @catch (id e) {
[self release];
@throw e;
}
}
- initWithSerialization: (OFXMLElement*)element
{
@try {
[self doesNotRecognizeSelector: _cmd];
abort();
} @catch (id e) {
[self release];
@throw e;
}
}
- (size_t)count
{
[self doesNotRecognizeSelector: _cmd];
abort();
}
- (BOOL)containsObject: (id)object
{
[self doesNotRecognizeSelector: _cmd];
abort();
}
- (OFEnumerator*)objectEnumerator
{
[self doesNotRecognizeSelector: _cmd];
abort();
}
- (int)countByEnumeratingWithState: (of_fast_enumeration_state_t*)state
objects: (id*)objects
count: (int)count
{
[self doesNotRecognizeSelector: _cmd];
abort();
}
- (BOOL)isEqual: (id)object
{
OFSet *otherSet;
if (![object isKindOfClass: [OFSet class]])
return NO;
otherSet = object;
if ([otherSet count] != [self count])
return NO;
return [otherSet isSubsetOfSet: self];
}
- (uint32_t)hash
{
void *pool = objc_autoreleasePoolPush();
OFEnumerator *enumerator = [self objectEnumerator];
id object;
uint32_t hash = 0;
while ((object = [enumerator nextObject]) != nil)
hash += [object hash];
objc_autoreleasePoolPop(pool);
return hash;
}
- (OFString*)description
{
void *pool;
OFMutableString *ret;
OFEnumerator *enumerator;
size_t i, count = [self count];
id object;
if (count == 0)
return @"{()}";
ret = [OFMutableString stringWithString: @"{(\n"];
pool = objc_autoreleasePoolPush();
enumerator = [self objectEnumerator];
i = 0;
while ((object = [enumerator nextObject]) != nil) {
void *pool2 = objc_autoreleasePoolPush();
[ret appendString: [object description]];
if (++i < count)
[ret appendString: @",\n"];
objc_autoreleasePoolPop(pool2);
}
[ret replaceOccurrencesOfString: @"\n"
withString: @"\n\t"];
[ret appendString: @"\n)}"];
[ret makeImmutable];
objc_autoreleasePoolPop(pool);
return ret;
}
- copy
{
return [self retain];
}
- mutableCopy
{
return [[OFMutableSet alloc] initWithSet: self];
}
- (BOOL)isSubsetOfSet: (OFSet*)set
{
void *pool = objc_autoreleasePoolPush();
OFEnumerator *enumerator;
id object;
enumerator = [self objectEnumerator];
while ((object = [enumerator nextObject]) != nil) {
if (![set containsObject: object]) {
objc_autoreleasePoolPop(pool);
return NO;
}
}
objc_autoreleasePoolPop(pool);
return YES;
}
- (BOOL)intersectsSet: (OFSet*)set
{
void *pool = objc_autoreleasePoolPush();
OFEnumerator *enumerator;
id object;
enumerator = [self objectEnumerator];
while ((object = [enumerator nextObject]) != nil) {
if ([set containsObject: object]) {
objc_autoreleasePoolPop(pool);
return YES;
}
}
objc_autoreleasePoolPop(pool);
return NO;
}
- (OFXMLElement*)XMLElementBySerializing
{
void *pool = objc_autoreleasePoolPush();
OFXMLElement *element;
OFEnumerator *enumerator;
id <OFSerialization> object;
if ([self isKindOfClass: [OFMutableSet class]])
element = [OFXMLElement elementWithName: @"OFMutableSet"
namespace: OF_SERIALIZATION_NS];
else
element = [OFXMLElement elementWithName: @"OFSet"
namespace: OF_SERIALIZATION_NS];
enumerator = [self objectEnumerator];
while ((object = [enumerator nextObject]) != nil) {
void *pool2 = objc_autoreleasePoolPush();
[element addChild: [object XMLElementBySerializing]];
objc_autoreleasePoolPop(pool2);
}
[element retain];
objc_autoreleasePoolPop(pool);
return [element autorelease];
}
- (OFSet*)setBySubtractingSet: (OFSet*)set
{
OFMutableSet *new;
new = [[self mutableCopy] autorelease];
[new minusSet: set];
[new makeImmutable];
return new;
}
- (OFSet*)setByIntersectingWithSet: (OFSet*)set
{
OFMutableSet *new;
new = [[self mutableCopy] autorelease];
[new intersectSet: set];
[new makeImmutable];
return new;
}
- (OFSet*)setByAddingSet: (OFSet*)set
{
OFMutableSet *new;
new = [[self mutableCopy] autorelease];
[new unionSet: set];
[new makeImmutable];
return new;
}
#if defined(OF_HAVE_BLOCKS) && defined(OF_HAVE_FAST_ENUMERATION)
- (void)enumerateObjectsUsingBlock: (of_set_enumeration_block_t)block
{
BOOL stop = NO;
for (id object in self) {
block(object, &stop);
if (stop)
break;
}
}
#endif
#ifdef OF_HAVE_BLOCKS
- (OFSet*)filteredSetUsingBlock: (of_set_filter_block_t)block
{
OFMutableSet *ret = [OFMutableSet set];
[self enumerateObjectsUsingBlock: ^ (id object, BOOL *stop) {
if (block(object))
[ret addObject: object];
}];
[ret makeImmutable];
return ret;
}
#endif
@end