On 12 Mar 2013, at 2:08 AM, Graham Cox wrote: > in a + method, [self class] === self. Once you've got that, you've got it. > > > > You're overthinking this. > > A class method is just an instance method of the class object. No magic at > all. So all this confusion you've caused yourself about [super class] and so > on is wholly unnecessary to correctly use class methods.
To be very slightly pedantic, the only magic here is 'super' --- sending a message to super (which you can only do from a method implementation) is special syntax that searches for the method starting with the implementation's class's superclass, rather than at the receiver's actual class. Everything else is non-magic. (In general, that's been one of the strengths of ObjC: very little magic.) But since there's only one relevant implementation of +class (on NSObject), and it returns self, and self is the same object regardless of how the method implementation was found, [self class] and [super class] are equivalent. _______________________________________________ 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
