From: transfire@...
Date: 2006-06-29T02:55:48+09:00
Subject: Re: eigenclass not extensible ?


Jonas Pfenniger wrote:
> ... in the particular case where the method already exists.
>
> == Example
>
> class Cls; end
> class Cls2; end
>
> def Cls.somemethod
>   "defined in Cls"
> end
>
> Cls.somemethod #=> "defined in Cls"
>
> module Mod
>   def somemethod
>     "defined in Mod"
>   end
> end
>
> Cls.extend Mod
> Cls2.extend Mod
>
> Cls.somemethod #=> "defined in Cls"
> Cls2.somemethod #=> "defined in Mod"
>
>
> Why doesn't Cls.somemethod gets overrided ?

B/c of what #extend actually does. It is the same as:

  class << Cls
    include Mod
  end

Try this:

  def Cls.somemethod
    super + "defined in Cls"
  end

T.