> On May 6, 2016, at 1:03 PM, Matthew LeRoy <mle...@minitab.com> wrote: > > My understanding is that NSTableView's delegate is a zeroing weak reference
Are you sure? Historically it’s been unsafe_unretained — in the old days before weak references or ARC, the view never retained nor released the delegate. The type of crash you’re having was a not-uncommon bug. Apple may have upgraded the property to a proper zeroing weak reference, but I can’t tell from the docs. They simply say "In a managed memory environment, the table view maintains a weak reference to the delegate (that is, it does not retain the delegate).” I’m assuming ARC counts as “managed”, but that sentence does not include the word “zeroing”… I would play it safe and explicitly set the table view’s delegate to nil when tearing down the window. I usually do this in the windowWillClose delegate method. —Jens _______________________________________________ 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