From: Tobias Reif <tobiasreif@...>
Date: 2001-08-16T23:06:16+09:00
Subject: [ruby-talk:19899] Re: Why not?: Assigning to self

> > ...
> > template object rectangle isa shape;
> > ...
> >
> > http://www.students.stedwards.edu/~jgrover/language%20summary.html#Anchor-Exampl-11005
> 
> Too bad they don't implement Square... Do you know a link where
> the usage of predicate subclasses is shown?

No; I'm sure it would look alike.
-- 
Tobias Reif
http://www.pinkjuice.com/myDigitalProfile.xhtml

go_to('www.ruby-lang.org').get(ruby).play.create.have_fun