From: "David A. Black" <dblack@...>
Date: 2005-11-13T23:50:54+09:00
Subject: Re: Execute block in context of yielding method's module

Hi --

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?

Somewhat rarely :-)  I actually prefer to know what 'self' is when I
write a block.  I'm uneasy with the idea that here:

   some_method { another_method }

I can't tell by looking who's receiving the another_method message.

A more common idiom is to provide the object so that you can see
exactly who's doing what:

   class C
     attr_accessor :x
     def initialize
       yield self
     end
   end

   C.new do |c|
     c.x = 1
   end

and things like that.


David

-- 
David A. Black
dblack@wobblini.net