From: "Ara.T.Howard" <ara.t.howard@...>
Date: 2005-11-13T11:58:40+09:00
Subject: Re: Execute block in context of yielding method's module

On Sun, 13 Nov 2005, Christian Leskowsky wrote:

> Hey guys,
>
> I'm very new to ruby.
>
> This is some freaky shite! Could somebody give me a use case as to when I'd
> want to do something like this?
>
> Thanks!


   harp:~ > cat a.rb
   module Connection
     class << self
       def host arg = nil
         @host = arg if arg
         @host
       end
       def port arg = nil
         @port = arg if arg
         @port
       end
       def configure &block
         instance_eval &block
       end
     end
   end

   Connection::configure do
     host 'http://codeforpeople.com'
     port 80
   end

   p Connection::host
   p Connection::port


   harp:~ > ruby a.rb
   "http://codeforpeople.com"
   80


regards.

-a
-- 
===============================================================================
| ara [dot] t [dot] howard [at] gmail [dot] com
| all happiness comes from the desire for others to be happy.  all misery
| comes from the desire for oneself to be happy.
| -- bodhicaryavatara
===============================================================================