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Re: Why the need for the id type?

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Re: Why the need for the id type?

Subject: Re: Why the need for the id type?
From: Wagner Truppel <email@hidden>
Date: Mon, 18 Jun 2007 23:20:37 +0200

I don't understand why id should be necessary. Why isn't NSObject (or some other root class) enough?

<http://developer.apple.com/documentation/Cocoa/Conceptual/ CocoaFundamentals/CocoaObjects/chapter_3_section_3.html#// apple_ref/doc/uid/TP40002974-CH4-DontLinkElementID_130>

I don't see how this directly answers the OP's question.


Precisely.

My first thought would be that "id" can point to a non-NSObject object; it's kind of like a psuedo-base-class from which all unparented classes derive (NSObject being the most common example). But that may be an oversimplification.

And why is that any different than what a true root class (be it NSObject, NSProxy, Object, or whatever) could provide?

Wagner
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References:  
  >Why the need for the id type? (From: Wagner Truppel <email@hidden>)
  >Re: Why the need for the id type? (From: mmalc Crawford <email@hidden>)
  >Re: Why the need for the id type? (From: John Stiles <email@hidden>)




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