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Re: dia2code objc

From: Björn Gohla
Subject: Re: dia2code objc
Date: Tue, 26 Mar 2002 14:47:43 +0100

On Tuesday 26 March 2002 13:41, Philippe C.D. Robert wrote:
> Hi!
> On Tue, 26 Mar 2002, [utf-8] Björn Gohla wrote:
> > i am working on a dia2code plugin for objective-c. i have some issues
> > with class member visibility. public attributes are represented in objc
> > via a set/get pair, and private ones by the absence of it. but is there
> > any useful interpretation of protected attributes, if so how? how can
> > private and protected methods be represented in objc?
> Cool idea, I am very interested in such work!
> In ObjC you can only make variables protected, private or public, but not

but how do we protect a member variable, assuming 'protected' means that the 
variable is only accessible by certain objects? i was hoping there was a 
simple default way to check whether a calling class is a 'friend' allowed to 
access protected members, or perhaps this could be a chance to check wether 
that would be useful a concept to have in gnustep.

> methods. Usually you would just put them into a 'separate' category.

putting the private methods into a separate category does not make the 
compiler enforce privacy, correct?

> And to be a little picky, 'get' in ObjC is not the same as ie. in Java or
> C++. In ObjC it is used to return a value by passing a pointer, ie:

i am aware of that.

> - (void)getIntValue:(int*)value;
> whereas the 'real' accessor would look like
> - (int)intValue;

that is actually how i implemented it, i only called it 'get' in the message.

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