From: Stefan Matthias Aust <sma@3plus4.de>
Date: 2001-05-30T07:41:31+09:00
Subject: [ruby-talk:15974] Re: How to enumerate known subclasses?

matz@zetabits.com (Yukihiro Matsumoto) wrote:

>How about making a class/module relation table at first by enumerating
>all classes/modules, then keeping the table up-to-date by hooking
>"inherited" and "append_features" (or "included" in 1.7)?

Sure. That could be easily added but are there any arguments against
automatically maintaining a subclasses array for each class.
Smalltalk does it that way.

And what's about allInstances, a way to efficently enumerate only the
instances of a given class.  Any thoughts on that topic?

bye
-- 
Stefan Matthias Aust \/ Truth Until Paradox