Re: Cocoa's custom class delegate conventions
Re: Cocoa's custom class delegate conventions
- Subject: Re: Cocoa's custom class delegate conventions
- From: Bill Cheeseman <email@hidden>
- Date: Sat, 14 Jun 2003 05:31:36 -0400
on 03-06-14 4:24 AM, Sailor Quasar at email@hidden wrote:
>
For that matter, once you've confirm that [delegate
>
respondsToSelector:@selector(thingWillDoStuff:)], why in the world
>
can't you simply then call [delegate thingWillDoStuff:self] directly?
>
It's an id after all, and I believe one of the rules of ids is that you
>
can send any selector to them that they recognize.
I suppose that performSelector is faster because it bypasses the Objective-C
runtime message resolution overhead.
I've been told that there is some other "magic" optimization done in Cocoa,
but I don't know what it is. Something about caching the selectors?
--
Bill Cheeseman - email@hidden
Quechee Software, Quechee, Vermont, USA
http://www.quecheesoftware.com
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