From: masa <masap.hat@...>
Date: 2010-12-31T19:32:16+09:00
Subject: Re: How to hook a callback through inheritance

It may be too late but how about this?

----
class Lmao
  def initialize
    @str = "HAHAHAHAHAHHAHAHAH"
  end
  def laughing
    @str
  end
=begin
  def self.inherited(base)
    base.extend(Callbacks)
  end
=end
end

module Callbacks
  def before_laughing(*methods)
    define_method(:laughing) do
      methods.each do |m|
        send(m)
      end
      super
    end
  end
end

class Lol < Lmao
  extend Callbacks
  before_laughing :downcase_please
  def downcase_please
    @str.downcase!
  end
end

a = Lol.new
p a.laughing
----

Masa