Re: removeObserver with keyPath nil
Re: removeObserver with keyPath nil
- Subject: Re: removeObserver with keyPath nil
- From: Mike Abdullah <email@hidden>
- Date: Fri, 23 Nov 2012 11:32:50 +0000
On 20 Nov 2012, at 19:50, Fritz Anderson <email@hidden> wrote:
> On 20 Nov 2012, at 11:16 AM, Gordon Apple <email@hidden> wrote:
>
>> What¹s the story on removeObserver:self forKeyPath:nil, called in dealloc?
>> Supposedly, this works. The docs don¹t say you can¹t use nil. However, I
>> have run into at least one place where did not work. We converted from GC
>> to ARC and have a bunch of these. I have seen statements that it worked
>> under GC, but possibly not otherwise.
>
> Could you clarify what you mean by "supposedly, this works?" If the documentation says you can't do it, then Apple does not suppose it works, and Apple is the only one whose suppositions matter. At one time, you liked the undocumented behavior you got, but that doesn't guarantee Apple will always deliver it.
>
> The documentation of this method for the collection classes explicitly forbids the use of nil.
For what it's worth, the collection classes also tell you not to call the method on them at all. Methinks somebody on the docs team did a bit too much copy and paste.
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden