From: "Mark J. Reed" <markjreed@...>
Date: 2003-12-02T00:27:07+09:00
Subject: Re: Arrgh when 'class << object'ing...

On Mon, Dec 01, 2003 at 03:20:16PM +0000, Asfand Yar Qazi wrote:
> Where's the "Attr"?!!!!!!

It's not there because the self.class call skips right over the
singleton class and returns the proper, named, original class:

	irb(main):001:0> s="Hello"
	=> "Hello"
	irb(main):002:0> s.class
	=> String
	irb(main):003:0> class << s
	irb(main):004:1> def greet(greetee="World")
	irb(main):005:2> puts "#{self}, #{greetee}!"
	irb(main):006:2> end
	irb(main):007:1> end
	=> nil
	irb(main):008:0> s.class
	=> String

And the original class doesn't have Attr included.  

AFAIK there's no built-in method to get the singleton class of an object,
but someone just posted a pointer to code that does it over in the
"class << x" thread.

-Mark