From: Yukihiro Matsumoto <matz@...>
Date: 2005-01-18T08:37:50+09:00
Subject: Re: Fwd: [suby-ruby] Your all time desired fundemental Ruby mod

Hi,

In message "Re: Fwd: [suby-ruby] Your all time desired fundemental Ruby mod"
    on Mon, 17 Jan 2005 23:22:30 +0900, "trans.  (T. Onoma)" <transami@runbox.com> writes:

|I want to expand the functionality of this class with a module I have:
|
|  module M
|    def x ; @x ; end
|  end
|
|But @x needs to default to an array. So what do I do? Presently I have two 
|choices. Either change M to:
|
|  module M
|    def x ; @x ||= [] ; end
|  end
|
|or use super as you suggest. But I don;t want to just recopy C for what if it 
|changed internally later?

Initializing module instance variables are one of the things I want to
fix.  But I'm not sure what is the best way to fix.  Maybe AOP-like
hooks is the way to go.  I'm waiting the conviction to come.

							matz.