Ah, that's clear, but I now see why I'm going wrong. The object in question is actually a class, where it has a class method +style. But the class is passed as the 'object' parameter of a notification, which has type id. How do I typecast that to the precise class type I'm expecting? Using (MyClass*) doesn't work because that is an instance. It's probably obvious, but I'm not stumbling upon it...
--Graham On 14/10/2011, at 11:28 AM, Jens Alfke wrote: > > On Oct 13, 2011, at 4:29 PM, Graham Cox wrote: > >> When I go into this warning, it further states it's using >> [NSProgressIndicator style] instead of my own declared method style which >> exists in many different objects (and which would be correct). > > This only happens when calling -style on an untyped (id) pointer. Cast the > pointer to your class and you won’t have a problem. Instead of > [[array lastObject] style] > use > [(MyClass*)[array lastObject] style] > This has the added advantage that, if you ever renamed or removed your -style > method, the compiler would be able to warn you if you didn’t fix this call. > >> (<RANT> why do Apple have to steal such obvious names when they know there >> is a namespace problem? This could easily have been named >> 'progressIndicatorStyle' and have much less chance of clashing with user >> code. > > I would rather have shorter, clearer names in framework classes. The > name-collision thing doesn’t happen to me often, and when it does I just use > a typecast like above. > > —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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
