From: han.holl@... (Han Holl)
Date: 2004-02-27T18:39:47+09:00
Subject: Re: Callback

ts <decoux@moulon.inra.fr> wrote in message 
> class B
>    def initialize(k, cb)
>       class << cb; self end.instance_eval do
>          define_method('cassette') { k }
>       end
>    end
> end

Hi,

I'm still having a problem with this: The above works, but what I'm
trying to do is something like
class B
   attr_reader :whatsit
   def initialize(k, cb)
      class << cb; self end.instance_eval do
         define_method('cassette') { 'somehow_return_the_b.objects_whatsit' }
      end
   end
end

The local variable 'k' seems to be in scope inside the instance eval, but
instance variables or class B methods aren't.
Still, with Pit's solution I got rid of the instance variable, and of the
eval.

O yes, please forget my question about cb << class; self end and cb.class.
It's still early here <g>

Cheers,

Han Holl