Re: Success with NSTableView weak delegates?
Re: Success with NSTableView weak delegates?
- Subject: Re: Success with NSTableView weak delegates?
- From: Sean McBride <email@hidden>
- Date: Tue, 20 Sep 2016 17:47:42 -0400
- Organization: Rogue Research Inc.
On Tue, 20 Sep 2016 14:26:27 -0700, David Duncan said:
>> On Sep 20, 2016, at 1:21 PM, Sean McBride <email@hidden> wrote:
>>
>> Hi all,
>>
>> WWDC 2016 Session 203 "What's New in Cocoa" at around 43:37 in the
>video, says that if you link against the 10.11 SDK that NSTableView's
>delegate is weak. So I went and wrapped my delegate nil-ing in:
>>
>> #if MAC_OS_X_VERSION_MAX_ALLOWED < 101100
>> [tableView setDelegate:nil];
>> [tableView setDataSource:nil];
>> #endif
>>
>> yet (with NSZombie especially), I easily reproduce message-to-zombie
>crashes with builds that are made against the Xcode 7.3.1 10.11 SDK.
>
>On which OS version?
At runtime: 10.9.5, 10.10.5, and 10.11.6.
>The macro above only says “do this if I link against an SDK prior to
>10.11” – that doesn’t handle what happens at runtime when you are on
>10.10 or below. In particular, if you plan to deploy back to prior to
>10.11, then you would want to either do a runtime check, or for trivial
>code like this always run the code until your MIN_ALLOWED (deployment
>target) is >= 10.11.
Yes, I'm aware of these differences. I'm also aware, as you surely are, that sometimes behaviour depends (only) on what SDK you link against.
If you scrub to around 43:37 here:
<https://developer.apple.com/videos/play/wwdc2016/203/>
you'll see they specifically refer to "linked on 10.11".
Besides, I both build and run on 10.11.6 and yet I see these message-to-zombie crashes after removing the setDelegate:nil code.
Cheers,
--
____________________________________________________________
Sean McBride, B. Eng email@hidden
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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