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Re: NSKeyValueBindingCreation Leak

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Re: NSKeyValueBindingCreation Leak

Subject: Re: NSKeyValueBindingCreation Leak
From: Kyle Sluder <email@hidden>
Date: Thu, 28 Jan 2010 08:40:32 -0800

On Jan 28, 2010, at 5:13 AM, Richard Somers <email@hidden> wrote:

MallocDebug reports a leak, and the leak grow over time.

If you never unbind, you're probably just seeing the KVO bookkeeping taking place.

Alternatively, you're calling super's implementation of - bind:toObject:withKeyPath:options: from within your own, but not calling super's implementation of unbind:. Due to KVB's (and KVO's) pretty poor API design, correctly dealing with superclass observers is impossible. If your class implements a certain binding, it should not allow super to do so as well.

--Kyle Sluder
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References:  
  >NSKeyValueBindingCreation Leak (From: Richard Somers <email@hidden>)
  >Re: NSKeyValueBindingCreation Leak (From: Graham Cox <email@hidden>)
  >Re: NSKeyValueBindingCreation Leak (From: Richard Somers <email@hidden>)




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