From: "Mauricio Fernández" <mfp@...>
Date: 2005-09-15T19:38:36+09:00
Subject: Re: defining a method relative to a module's nesting

On Thu, Sep 15, 2005 at 01:36:34PM +0900, Trans wrote:
>   module X
>     def self.included(mod)
>       define_method ... # define method from here
>     end
>   end
> 
>   module N
>     # <- define method to this namespace (N)
>     module M
>       include X
>     end
>   end

batsman@tux-chan:~/src/ruby/ruby.head$ cat /tmp/fgdsdgdfg.rb 
module X
  def self.included(mod)
    # for top-level module, parent = self; change for other semantics
    parent = Object.const_get(mod.to_s.sub(/::[^:]+\z/, ""))
    parent.send(:define_method, :foo){ puts "#{parent.to_s}#foo" } #fcall in 1.9
    class << parent; self end.send(:define_method, :bar) do  #fcall in 1.9
      puts "#{parent.to_s}.bar"
    end
  end
end

module M
  module N
    include X
  end
end

Class.new{ include M }.new.foo
M.bar
batsman@tux-chan:~/src/ruby/ruby.head$ ruby /tmp/fgdsdgdfg.rb 
M#foo
M.bar

-- 
Mauricio Fernandez