From: Paul Brannan <pbrannan@...>
Date: 2001-11-01T02:36:19+09:00
Subject: [ruby-talk:23992] Re: Strangeness with undefining methods

On Thu, 1 Nov 2001, ts wrote:

> >>>>> "P" == Paul Brannan <pbrannan@atdesk.com> writes:
>
> P> If 'foo' is already removed, then why do I get the "discarding old foo"
> P> message?
>
>  foo is not removed just undef, try
>
>   class Object; remove_method :foo; end

Ahh, that makes sense, thanks.

In what real world situation might I use undef instead of remove_method?
And when I undef a method, where does the method go, since I can't call
it?  (I've noticed that I can still call remove_method after an undef).

Paul