From: dm1 <dmertz@...>
Date: 2005-05-12T18:00:28+09:00
Subject: Re: How to force a method redefinition ?

It works nice. Thanks

Denis

Christoph wrote:

> 
> I guess that would work out
> ---
> module FRedef
>     def self.extended(mod)
>         mod.instance_eval do
>             @instance_methods = Hash.new
>             instance_methods(false).each do |sym|
>                 @instance_methods[sym] = instance_method(sym)
>                 remove_method(sym)
>             end
>         end
>     end
>     private
>     def append_features(mod)
>         @instance_methods.each do |sym,mth|
>             mod.__send__(:define_method,sym,mth)
>         end
>         super
>     end
> end
> 
> module B
>     def xx ; puts "in B" ; end
>     extend FRedef
> end
> 
> module C
>  def xx ; puts "in C"; end
>  extend FRedef
> end
> 
> module D
>  def xx ; puts "in D"; end
>  extend FRedef
> end
> 
> 
> include B ; xx
> include C ; xx
> include D ; xx
> include B ; xx
> include C ; xx
> ---
> Note with the -w option you'll get  redefinition warnings -
> check out singleton.rb on how to avoid this.
> 
> /Christoph