OOWeakSet Class Reference

#include <OOWeakSet.h>

Inheritance diagram for OOWeakSet:

Collaboration diagram for OOWeakSet:

Instance Methods
(id)	- init
(id)	- initWithCapacity:
(NSUInteger)	- count
(BOOL)	- containsObject:
(NSEnumerator *)	- objectEnumerator
(void)	- addObject:
(void)	- removeObject:
(void)	- addObjectsByEnumerating:
(void)	- makeObjectsPerformSelector:
(void)	- makeObjectsPerformSelector:withObject:
(NSArray *)	- allObjects
(void)	- removeAllObjects
(void)	- dealloc [implementation]
(NSString *)	- description [implementation]
(id)	- copyWithZone: [implementation]
(id)	- mutableCopyWithZone: [implementation]
(BOOL)	- isEqual: [implementation]
(void)	- compact [implementation]

Class Methods
(instancetype)	+ set
(instancetype)	+ setWithCapacity:

Private Attributes
NSMutableSet *	_objects

Detailed Description

Definition at line 29 of file OOWeakSet.h.

Method Documentation

addObject:

- (void) addObject:

(id<OOWeakReferenceSupport>)

object

Definition at line 17 of file OOWeakSet.m.

                  :(id<OOWeakReferenceSupport>)object
{
    if (object == nil)  return;
    NSAssert([object conformsToProtocol:@protocol(OOWeakReferenceSupport)], @"Attempt to add object to OOWeakSet which does not conform to OOWeakReferenceSupport.");
    
    OOWeakReference *weakObj = [object weakRetain];
    [_objects addObject:weakObj];
    [weakObj release];
}

addObjectsByEnumerating:

- (void) addObjectsByEnumerating:

(NSEnumerator *)

enumerator

Definition at line 17 of file OOWeakSet.m.

                                :(NSEnumerator *)enumerator
{
    id object = nil;
    [self compact];
    while ((object = [enumerator nextObject]))
    {
        [self addObject:object];
    }
}

allObjects

- (NSArray *) allObjects

Definition at line 17 of file OOWeakSet.m.

{
    NSMutableArray *result = [NSMutableArray arrayWithCapacity:[_objects count]];
    OOWeakReference *weakRef = nil;
    foreach (weakRef, _objects)
    {
        id object = [weakRef weakRefUnderlyingObject];
        if (object != nil)  [result addObject:object];
    }
    
#ifdef NDEBUG
    return result;
#else
    return [NSArray arrayWithArray:result];
#endif
}

compact

- (void) compact

implementation

Provided by category OOWeakSet(OOPrivate).

Definition at line 17 of file OOWeakSet.m.

{
    OOWeakReference *weakRef = nil;
    BOOL compactRequired = NO;
    foreach (weakRef, _objects)
    {
        if ([weakRef weakRefUnderlyingObject] == nil)
        {
            compactRequired = YES;
            break;
        }
    }
    
    if (compactRequired)
    {
        NSMutableSet *newObjects = [[NSMutableSet alloc] initWithCapacity:[_objects count]];
        foreach (weakRef, _objects)
        {
            if ([weakRef weakRefUnderlyingObject] != nil)
            {
                [newObjects addObject:weakRef];
            }
        }
        
        [_objects release];
        _objects = newObjects;
    }
}

containsObject:

- (BOOL) containsObject:

(id<OOWeakReferenceSupport>)

object

Definition at line 17 of file OOWeakSet.m.

                       :(id<OOWeakReferenceSupport>)object
{
    [self compact];
    OOWeakReference *weakObj = [object weakRetain];
    BOOL result = [_objects containsObject:weakObj];
    [weakObj release];
    return result;
}

copyWithZone:

- (id) copyWithZone: (NSZone *) zone

implementation

Definition at line 17 of file OOWeakSet.m.

                   :(NSZone *)zone
{
    [self compact];
    OOWeakSet *result = [[OOWeakSet allocWithZone:zone] init];
    [result addObjectsByEnumerating:[self objectEnumerator]];
    return result;
}

count

- (NSUInteger) count

Definition at line 17 of file OOWeakSet.m.

{
    [self compact];
    return [_objects count];
}

dealloc

- (void) dealloc

implementation

Definition at line 17 of file OOWeakSet.m.

{
    DESTROY(_objects);
    
    [super dealloc];
}

description

- (NSString *) description

implementation

Definition at line 17 of file OOWeakSet.m.

{
    NSMutableString *result = [NSMutableString stringWithFormat:@"<%@ %p>{", [self class], self];
    NSEnumerator *selfEnum = [self objectEnumerator];
    id object = nil;
    BOOL first = YES;
    while ((object = [selfEnum nextObject]))
    {
        if (!first)  [result appendString:@", "];
        else  first = NO;
        
        NSString *desc = nil;
        if ([object respondsToSelector:@selector(shortDescription)])  desc = [object shortDescription];
        else  desc = [object description];
        
        [result appendString:desc];
    }
    
    [result appendString:@"}"];
    return result;
}

init

- (id) init

Definition at line 17 of file OOWeakSet.m.

{
    return [self initWithCapacity:0];
}

initWithCapacity:

- (id) initWithCapacity:

(NSUInteger)

capacity

Definition at line 17 of file OOWeakSet.m.

                       :(NSUInteger)capacity
{
    if ((self = [super init]))
    {
        _objects = [[NSMutableSet alloc] initWithCapacity:capacity];
        if (_objects == NULL)
        {
            [self release];
            return nil;
        }
    }
    return self;
}

isEqual:

- (BOOL) isEqual: (id) other

implementation

Definition at line 17 of file OOWeakSet.m.

                :(id)other
{
    if (![other isKindOfClass:[OOWeakSet class]])  return NO;
    if ([self count] != [other count])  return NO;
    
    BOOL result = YES;
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    NSEnumerator *selfEnum = [self objectEnumerator];
    id object = nil;
    while ((object = [selfEnum nextObject]))
    {
        if (![other containsObject:object])
        {
            result = NO;
            break;
        }
    }
    DESTROY(pool);
    
    return result;
}

makeObjectsPerformSelector:

- (void) makeObjectsPerformSelector:

(SEL)

selector

Definition at line 17 of file OOWeakSet.m.

                                   :(SEL)selector
{
    OOWeakReference *weakRef = nil;
    foreach (weakRef, _objects)
    {
        [[weakRef weakRefUnderlyingObject] performSelector:selector];
    }
}

makeObjectsPerformSelector:withObject:

- (void) makeObjectsPerformSelector:		(SEL)	selector
withObject:		(id)	argument

Definition at line 17 of file OOWeakSet.m.

                                   :(SEL)selector withObject:(id)argument
{
    OOWeakReference *weakRef = nil;
    foreach (weakRef, _objects)
    {
        [[weakRef weakRefUnderlyingObject] performSelector:selector withObject:argument];
    }
}

mutableCopyWithZone:

- (id) mutableCopyWithZone: (NSZone *) zone

implementation

Definition at line 17 of file OOWeakSet.m.

                          :(NSZone *)zone
{
    return [self copyWithZone:zone];
}

objectEnumerator

- (NSEnumerator *) objectEnumerator

Definition at line 17 of file OOWeakSet.m.

{
    return [OOWeakRefUnpackingEnumerator enumeratorWithCollection:_objects];
}

removeAllObjects

- (void) removeAllObjects

Definition at line 17 of file OOWeakSet.m.

{
    [_objects removeAllObjects];
}

removeObject:

- (void) removeObject:

(id<OOWeakReferenceSupport>)

object

Definition at line 17 of file OOWeakSet.m.

                     :(id<OOWeakReferenceSupport>)object
{
    OOWeakReference *weakObj = [object weakRetain];
    [_objects removeObject:weakObj];
    [weakObj release];
}

set

+ (instancetype) set

Definition at line 17 of file OOWeakSet.m.

{
    return [[[self alloc] init] autorelease];
}

setWithCapacity:

+ (instancetype) setWithCapacity:

(NSUInteger)

capacity

Definition at line 17 of file OOWeakSet.m.

                                :(NSUInteger)capacity
{
    return [[[self alloc] initWithCapacity:capacity] autorelease];
}

Member Data Documentation

_objects

- (NSMutableSet*) _objects

private

Definition at line 33 of file OOWeakSet.h.

---

The documentation for this class was generated from the following files:

• src/Core/OOWeakSet.h
• src/Core/OOWeakSet.m