[Rubycocoa-talk] key value questions

[Rod S. <rsc...@xm...>]

I have some questions about RubyCocoa's support for key value coding  
and the new kvc_accessor and kvc_depends_on methods.

First off, in Objective-C, all objects are already KVC compliant as  
long as you follow certain naming conventions. So why do we have a  
separate kvc_accessor method instead of just modifiying attr_accessor  
to support key value coding? Is it because attr_accessor is built  
into Ruby and we needed a different name?

Next, what does kvc_depends_on do? I'm guessing it's for Key Value  
Observing? If that's the case why don't we just use the addObserver  
method in NSObject that is for that purpose? Or is it just a shortcut?

Sorry if these questions have been answered before, but I haven't  
seen a description of what these do. Just scattered discussions with  
no clear definition.

Thanks,

Rod Schmidt
infiniteNIL Software