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[RESOLVED] Re: Curious about copyWithZone message from NSArrayController in "GC required" project
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[RESOLVED] Re: Curious about copyWithZone message from NSArrayController in "GC required" project


  • Subject: [RESOLVED] Re: Curious about copyWithZone message from NSArrayController in "GC required" project
  • From: Luke Evans <email@hidden>
  • Date: Sun, 13 Jan 2008 15:37:21 -0800

O.K...

So, I just did this and found it wasn't being called any longer. So, I suspect your original intuition was right - there was something badly wrong with my code (which thankfully I have now rectified - though its frustrating not to be able to nail the original reason now).

One change that may have had a bearing here was that I had inadvertently commented out some code to return an NSCollectionViewItem in a subclass of NSCollectionView that was generating UI for the B objects. I fixed this yesterday. It's possible that something in NSCollectionView was trying to do its best with just the prototype item and the list of B's from the NSArrayController. Anyway, that's pure speculation, and perfectly well covered by your comment that "something is seriously wrong with your code"!

I'm deleting the spurious copyWithZone now, safe in the knowledge that it's just not something that I should need to implement until such time as I have a real need for a copy constructor in that class.

Thanks.

-- Lwe


On 13-Jan-08, at 2:54 PM, Bill Bumgarner wrote:

You mentioned that you had implemented a -copyWithZone: on B? Can you set a breakpoint on that and see what backtrace barfs up as a result?

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References: 
 >Curious about copyWithZone message from NSArrayController in "GC required" project (From: Luke Evans <email@hidden>)
 >Re: Curious about copyWithZone message from NSArrayController in "GC required" project (From: Bill Bumgarner <email@hidden>)
 >Re: Curious about copyWithZone message from NSArrayController in "GC required" project (From: Luke Evans <email@hidden>)
 >Re: Curious about copyWithZone message from NSArrayController in "GC required" project (From: Bill Bumgarner <email@hidden>)

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