On Nov 15, 2011, at 10:34 AM, Torsten Curdt wrote: > How does > > @property (nonatomic, assign) IBOutlet NSWindow *window; > > not have the information that there would need to be an ivar > > NSWindow *window; > > on 32-bit?
There’s no requirement that there be such an ivar, only a method named -window
that returns an NSWindow*. The implementation of that method is arbitrary. For
example it might just look like
- (NSWindow*) window { return [_parent window];}
Separating interface from implementation is a good thing and a keystone of OOP.
—Jens
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