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Re: [Q] Do subclasses implementing same Protocol as super class also need to include it in declaration?

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Re: [Q] Do subclasses implementing same Protocol as super class also need to include it in declaration?

Subject: Re: [Q] Do subclasses implementing same Protocol as super class also need to include it in declaration?
From: Rick Mann <email@hidden>
Date: Wed, 16 Jul 2008 14:17:42 -0700


On Jul 16, 2008, at 14:15:45, Rick Mann wrote:

I have a class D that derives from class S. S derives from NSObject<NSCoding>. Do I need to declare D as:
	@interface D : S<NSCoding>
or can I leave off the <NSCoding> for the derived classes, and still get appropriate warnings?

I think I answered my own question: you *should* specify the Protocol at all levels of the inheritance graph where you want the Protocol enforced.

--
Rick

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  >[Q] Do subclasses implementing same Protocol as super class also	need to include it in declaration? (From: Rick Mann <email@hidden>)




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