From: Phillip Hutchings <sitharus@...>
Date: 2006-07-26T05:57:13+09:00
Subject: Re: "Self" confusion

On 7/26/06, Rimantas Liubertas <rimantas@gmail.com> wrote:
> > Now I am fully confused! How do you define methods inside an instance
> > of an object?

Just like that ;) Pick up a copy of Programming Ruby, it's got a
better explanation than I could come up with.

Basically when you do:
x = Object.new
def x.foo
  'bar'
end

you're added a singleton class on to x that contains the instance
method foo. Only x can use this, no other Object instance will have
it.

So likewise when you're in an instance of Object, as ruby scripts
start out in, self.foo is creating an instance method in the singleton
class of the Object instance.
-- 
Phillip Hutchings
http://www.sitharus.com/