From: Christoph <chr_mail@...>
Date: 2005-05-01T22:02:11+09:00
Subject: Re: arg, metaclass bug found?

Robert Klemme schrieb:

>
> Well, yes, that's what I concluded.  But why is that so?  What's the 
> reasoning behind this?  After all, both singleton classes are just 
> there for a single object although that happens to be a class 
> instance.  This change might even break some code, I'm not sure. 

A main difference between, actually the main difference, between
including modules and inheriting from a class (the philosophical issue of MI
aside)  is  fact that class methods are "inherited"  but module  methods 
are not
"included".
As for code breakage - think marshaling, generalized constructors (e.g.
 the Hash or Set  "[]" class operators), class instance variable 
accessors  +
tons of other stuff ...

/Christoph