From: Mark Hubbart <discordantus@...>
Date: 2005-09-29T04:25:33+09:00
Subject: Re: Python to Ruby: Two puzzlements...

On 9/28/05, Caleb Tennis <caleb@aei-tech.com> wrote:
> > It's defined in Class:
> > >> Class.methods.grep /ext/
> >
> > => ["extend"]
>
> Actually, I think it's defined in Kernel.  Object mixes in the Kernel module.
> Then Module is a subclass of Object.  (And Class is a subclass of Module -
> hence why it shows up there).

The proof is in the #inspect:

  Class.method :extend
    ==>#<Method: Class(Kernel)#extend>
  Class.instance_method :extend
    ==>#<UnboundMethod: Class(Kernel)#extend>
  Kernel.instance_method :extend
    ==>#<UnboundMethod: Kernel#extend>

cheers,
Mark