From: Christoph <chr_news@...>
Date: 2002-12-19T07:32:04+09:00
Subject: Re: Mommy, where do methods come from?


<nobu.nokada@softhome.net> wrote
....
>
>     module Kernel
>       def methodClass(m)
>         m = "#{m}"
>         self.class.ancestors.find {|c| c.instance_methods.include?(m)}
>       end
>     end


Here is a slightly extended version which (hopefully) allows
for ``undef's"  and/or singletons methods.

---
module Kernel
  def methodClass(m)
    m = m.to_s
    # catch method undef's
    respond_to?(m) or return nil
    # meta class is first inline
    extended_anc =  self.class.ancestors.unshift(class << self; self end)
    extended_anc.find {|c| c.instance_methods.include?(m) }
  end
end
---
 ...

/Christoph