Re: NSSound Reimplementation

[David Chisnall]

On 16 Jul 2009, at 18:59, Richard Frith-Macdonald wrote:

> One thing I don't understand about the whole issue of adding ivars  
> is how it is supposed to work with key value coding since, in KVC  
> you can get/set the value of an ivar by name, but with non-fragile  
> ivars you can presumably have multiple ivars with the same name.   
> What does KVC do in that situation?

Break, probably.  It will find the first ivar with that name, which  
will be the one in the subclass.  You can, of course, avoid this  
problem by creating explicit accessors which KVC will find in  
preference to direct ivar access.

David