On Feb 8, 2016, at 10:01 AM, Ken Thomases <k...@codeweavers.com> wrote: >>> >>> In the case where you do not see a warning, you are calling -[NSDictionary >>> objectForKey:] which accepts a nil key value (returning nil). >> >> Ahhhhh, for some reason I thought that is was illegal to pass a nil key to >> objectForkey: > > It is illegal. Michael is incorrect. In general, when a method accepts an > object pointer argument, it is illegal to pass nil unless it's specifically > documented to be legal.
The nil key pointer is a red herring. -[NSDictionary objectForKey:] can return nil if the dictionary doesn’t contain a value for the key. The analyser is correctly flagging that the code doesn’t handle this case. I suspect the reason that this started recently is that Apple recently started annotation the Cocoa headers as to what can and can’t accept/return nil in support of Swift. HTH, -Steve _______________________________________________ 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
