Re: What's the point of @properties?
Re: What's the point of @properties?
- Subject: Re: What's the point of @properties?
- From: Matt Neuburg <email@hidden>
- Date: Wed, 22 Sep 2010 12:43:45 -0700
- Thread-topic: What's the point of @properties?
On Wed, 22 Sep 2010 15:16:19 +0200, Uli Kusterer
<email@hidden> said:
> One point nobody mentioned so far: You can use different names for your public
property (e.g. an IBOutlet) and your internal storage (i.e. the instance
variable). I like to avoid name collisions between local variables and instance
variables by using an m prefix on instance variables. Using @synthesize
cancelButton = mCancelButton;, I can do that.
>
> Instead of declaring the instance variable as an IBOutlet, I can now declare
>
>@property (retain) IBOutlet NSButton* cancelButton;
>
> and IB will call setCancelButton:, not setMCancelButton:, which wasn't
possible without properties.
Not so. If an outlet in IB is called "cancelButton", nib-loading will call
setCancelButton: if it exists, and of course setCancelButton: can be a front
for anything at all; no instance variable need exist, in fact, let alone one
having the same name. m.
--
matt neuburg, phd = email@hidden, <http://www.tidbits.com/matt/>
A fool + a tool + an autorelease pool = cool!
AppleScript: the Definitive Guide - Second Edition!
http://www.apeth.net/matt/default.html#applescriptthings
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