From: Austin McDonald <austin-mcdonald@...>
Date: 2004-06-12T05:14:57+09:00
Subject: Re: Virtual instance-variable accessors

I can see how it would be more efficient this way.  Good work on 
CShadow, btw.  Thanks!

Austin

Joel VanderWerf wrote:

> Austin McDonald wrote:
>
>> When I access an private variable, using @var inside a method, is 
>> there any way to capture that using a C extension?  Or am I forced to 
>> use rb_iv_set/get to keep the ruby instance variable up to date?  I 
>> would like for @var to call a C function; can this be done?
>
>
> AFAIK, there's no way to do this without hacking ruby.
>
>> I've looked at CShadow, and it seems like it requires you to use 
>> self.var, which I've already figured out how to do.
>
>
> Yeah. If I knew a way to "hook" ivar access, CShadow would have used 
> it.  But ruby probably is more efficient without the hooks since it 
> would always have to check for them, and allocate space for them.
>
> One alternative is to declare the accessors protected.
>
>