On Fri, 07 Oct 2011 19:46:17 -0400, Andy Lee <ag...@mac.com> said: >On Oct 3, 2011, at 2:23 PM, Charles Srstka wrote: >> 2. KVOs access instance variables directly (mis)feature recognizes the >> underscore prefix. I like to give it a prefix that KVO doesnt know about so >> that I can be sure never to end up accidentally accessing the ivars of >> another object without going through the proper accessors. > >Ooh, hadn't thought of that. > >Maybe now's the time to start using spiffy compiler features like synthesized >ivars, and to stop declaring ivars at all.
But please insert here some boilerplate grumbling about the vast undocumented namespace in which you're operating. I did everything "right" when I named an ivar "firstResponder" (property, synthesized ivar, synthesized accessors) and totally broke my app because Apple was apparently already using an undocumented ivar called "firstResponder". http://www.cocoabuilder.com/archive/cocoa/296662-assign-property-behaves-differently-from-simple-instance-variable.html Also, note that there are circumstances where a synthesized ivar won't work; see, for instance, this note: http://www.cocoabuilder.com/archive/cocoa/298320-inherited-implicitly-created-member-is-no-member.html m. -- matt neuburg, phd = m...@tidbits.com, <http://www.apeth.net/matt/> A fool + a tool + an autorelease pool = cool! Programming iOS 4! http://www.apeth.net/matt/default.html#iosbook_______________________________________________ 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
