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NSKeyValueBindingCreation Leak
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NSKeyValueBindingCreation Leak


  • Subject: NSKeyValueBindingCreation Leak
  • From: Richard Somers <email@hidden>
  • Date: Thu, 28 Jan 2010 05:57:51 -0700

I have a binding creation memory leak.

-[NSObject(NSKeyValueBindingCreation) bind:toObject:withKeyPath:options:] (in AppKit)

A custom object in a nib is wired to a NSArrayController.

@interface CustomObject : NSObject
{
    IBOutlet id arrayController;
    NSArray *array;
}

@end

@implementation CustomObject

- (void)awakeFromNib
{
    [self bind:@"array"
      toObject:arrayController
   withKeyPath:@"arrangedObjects"
       options:nil];

    [arrayController addObserver:self
                      forKeyPath:@"arrangedObjects.changed"
                         options:NSKeyValueObservingOptionNew
                         context:self];
}

- (void)dealloc
{
    [arrayController removeObserver:self
                         forKeyPath:@"arrangedObjects.changed"];
    [self unbind:@"array"];
    [super dealloc];
}

@end

Why am I leaking?

--Richard

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