On May 7, 2014, at 6:11 PM, Graham Cox <graham....@bigpond.com> wrote: > On 8 May 2014, at 10:39 am, Kyle Sluder <k...@ksluder.com> wrote: >> Wait, why do you suspect this? Unless I missed something, there’s no >> guarantee, ARC or not, that a receiver will survive through a method >> invocation. > > How else could it work? -performSelector must hang on to the receiver at > least until the method invocation, so any release must come afterwards, or an > autorelease beforehand which means the release itself will be afterwards. If > it was otherwise -performSelector would be crashing continually, which is not > the behaviour observed.
Ordinary -performSelector: retains nothing. Other asynchronous variants like -performSelectorOnMainThread:… and -performSelector:…waitUntilDone:NO retain the receiver and the arguments. -- Greg Parker gpar...@apple.com Runtime Wrangler _______________________________________________ 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
