/*
* Copyright (c) 2008, 2009, 2010, 2011
* 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"
#define OF_SET_M
#import "OFSet.h"
#import "OFDictionary.h"
#import "OFArray.h"
#import "OFNull.h"
#import "OFString.h"
#import "OFAutoreleasePool.h"
@implementation OFSet
+ set
{
return [[[self alloc] init] autorelease];
}
+ setWithSet: (OFSet*)set
{
return [[[self alloc] initWithSet: set] autorelease];
}
+ setWithArray: (OFArray*)array
{
return [[[self alloc] initWithArray: array] autorelease];
}
+ 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;
}
- init
{
self = [super init];
@try {
dictionary = [[OFMutableDictionary alloc] init];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithSet: (OFSet*)set
{
self = [super init];
@try {
dictionary = [[OFMutableDictionary alloc]
_initWithDictionary: set->dictionary
copyKeys: NO];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- initWithArray: (OFArray*)array
{
self = [self init];
@try {
id *cArray = [array cArray];
size_t i, count = [array count];
OFNull *null = [OFNull null];
for (i = 0; i < count; i++)
[dictionary _setObject: null
forKey: cArray[i]
copyKey: NO];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (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
{
self = [self init];
@try {
OFNull *null = [OFNull null];
id object;
[dictionary _setObject: null
forKey: firstObject
copyKey: NO];
while ((object = va_arg(arguments, id)) != nil)
[dictionary _setObject: null
forKey: object
copyKey: NO];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[dictionary release];
[super dealloc];
}
- (BOOL)isEqual: (id)object
{
OFSet *otherSet;
if (![object isKindOfClass: [OFSet class]])
return NO;
otherSet = object;
return [otherSet->dictionary isEqual: dictionary];
}
- (uint32_t)hash
{
return [dictionary hash];
}
- (OFString*)description
{
OFMutableString *ret;
OFAutoreleasePool *pool, *pool2;
OFEnumerator *enumerator;
size_t i, count = [dictionary count];
id object;
if (count == 0)
return @"{()}";
ret = [OFMutableString stringWithString: @"{(\n"];
pool = [[OFAutoreleasePool alloc] init];
enumerator = [dictionary keyEnumerator];
i = 0;
pool2 = [[OFAutoreleasePool alloc] init];
while ((object = [enumerator nextObject]) != nil) {
[ret appendString: [object description]];
if (++i < count)
[ret appendString: @",\n"];
[pool2 releaseObjects];
}
[ret replaceOccurrencesOfString: @"\n"
withString: @"\n\t"];
[ret appendString: @"\n)}"];
[pool release];
/*
* Class swizzle the string to be immutable. We declared the return type
* to be OFString*, so it can't be modified anyway. But not swizzling it
* would create a real copy each time -[copy] is called.
*/
ret->isa = [OFString class];
return ret;
}
- copy
{
return [[OFSet alloc] initWithSet: self];
}
- mutableCopy
{
return [[OFMutableSet alloc] initWithSet: self];
}
- (size_t)count
{
return [dictionary count];
}
- (BOOL)containsObject: (id)object
{
return ([dictionary objectForKey: object] != nil);
}
- (BOOL)isSubsetOfSet: (OFSet*)set
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFEnumerator *enumerator = [dictionary keyEnumerator];
id object;
while ((object = [enumerator nextObject]) != nil) {
if (![set containsObject: object]) {
[pool release];
return NO;
}
}
[pool release];
return YES;
}
- (BOOL)intersectsSet: (OFSet*)set
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFEnumerator *enumerator = [dictionary keyEnumerator];
id object;
while ((object = [enumerator nextObject]) != nil) {
if ([set containsObject: object]) {
[pool release];
return YES;
}
}
[pool release];
return NO;
}
- (OFEnumerator*)objectEnumerator
{
return [dictionary keyEnumerator];
}
@end