Re: How do I give a set of methods to some objects but not others?
Re: How do I give a set of methods to some objects but not others?
- Subject: Re: How do I give a set of methods to some objects but not others?
- From: Philip Mötteli <email@hidden>
- Date: Fri, 24 Nov 2006 23:05:16 +0100
Am 24.11.2006 um 20:59 schrieb Alan Smith:
Protocols:
They would work except I would then have to implement it over and over
again and each implementation would be the same. I want to find a way
to only implement the methods once and then use that one
implmentations.
I think, if I correctly understood you, I have done something like
this. It's actually simple.
I did this for something, that I actually consider a bug of Apple's
Foundation framework. The collection classes should have a common
abstract superclass. I have many methods, that are of exactly the
same implementation for NSSet and NSArray (and other collection
classes I have created myself).
Just create an implementation file (*.m) and put your method
implementations in it. No class declaration, just the method
implementation. Then import this file into your class where you want
them to be – like this:
#import "YourMethods.m"
Now, do the same with your method declarations.
I'm not completely happy with that solution. It gives some warnings,
that I just can't get rid of. But it solves the initial problem.
Re
Phil
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