> On Jul 12, 2017, at 12:23 PM, Jens Alfke <j...@mooseyard.com> wrote: > > >> On Jul 12, 2017, at 9:54 AM, Jeremy Hughes <moon.rab...@virginmedia.com> >> wrote: >> >> I’d forgotten about autorelease pools - but I guess they’re still there in >> Cocoa for backwards compatibility with pre-ARC code. > > Autorelease is still necessary with ARC. There are cases where ARC doesn’t > know enough about object lifetimes at compile-time, and has to e.g. > autorelease a temporary object before returning it from a method.
While that’s true, the main reason, as I understand it, that ARC doesn’t know enough about the object’s lifetime is that non-ARC code may be calling the method. In an all-ARC world, a method could always just return objects with a +1 retain count, and the consumer could just assume that and always balance the retain. Charles _______________________________________________ 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
