From: Austin Ziegler <halostatue@...>
Date: 2005-10-11T22:17:01+09:00
Subject: Re: extend and super -- I cannot understand why this behavior

On 10/10/05, TRANS <transfire@gmail.com> wrote:
>   module Q
>      module H
>        def x ; @x ||= [] ; end
>      end
>      extend H
>    end
>
>    class R
>      include Q
>      extend Q::H
>      def self.x ; @x ||= [] ; ancestors[1].x + @x  ; end
>      def self.x! ; @x ||= [] ; end
>    end
>
> Which I was mistakingly thinking that's what super would do.

Why? Instance variables are in the class, not the module. So, when
Q::H refers to @x, it's referring to @x in the class that has included
or extended itself with Q::H.

-austin
--
Austin Ziegler * halostatue@gmail.com
               * Alternate: austin@halostatue.ca