From: nobu.nokada@...
Date: 2002-07-04T06:36:05+09:00
Subject: Re: Ruby implementation Q's

Hi,

At Thu, 4 Jul 2002 01:53:46 +0900,
Justin Johnson wrote:
> I can see how this would cause problems because some variables may still
> point to the object that has been killed.  It would be possible for the
> runtime to recognize ptr's to killed objects and treat them accordingly by
> changing the ptr to Nil.

It's not only impossible to conservative GC, also too
expensive.  Such replacement needs to scan all variables each
time or to maintain variables lists for each objects.

Or do you talk about only current local variables?

-- 
Nobu Nakada