On 20 Nov 2012, at 19:50, Fritz Anderson <fri...@manoverboard.org> wrote:

> On 20 Nov 2012, at 11:16 AM, Gordon Apple <g...@ed4u.com> 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 (Cocoa-dev@lists.apple.com)

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:
https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com

This email sent to arch...@mail-archive.com

Reply via email to