On Jun 24, 2012, at 12:25 PM, Graham Cox wrote: > > On 24/06/2012, at 1:55 PM, Jerry Krinock wrote: > >> Why didn't Apple do the same thing for ARC? > > > Because ARC is a compiler technology that inserts -retain, -release > automatically and silently into your code as it is compiled. The methods have > to be there in order for memory management to work at runtime - ARC doesn't > do anything at runtime, by then your code is exactly the same as if you'd > written memory management manually (though hopefully without any mistakes!). > > --Graham >
They could still #define them at compile time to be nothing and then insert the code to call the underlying functions just as they do now, that inserts objc_release() and other calls directly into the compiled code anyway. There's no incompatibility there. My guess is that Apple wanted to move totally away from manual retain/release and have people not even see it, so instead of #defining out the calls, they wrote the conversion tool which removes them entirely, and does a few other things too, a clean-break approach. _______________________________________________ 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
