From: Francis Hwang <sera@...>
Date: 2004-11-29T22:49:57+09:00
Subject: Getting a callback whenever a class method is added to a class or its children?

Is there a way to capture whenever a class method is added either to a 
base class or its children? For example, if my code is

class A
   def self.some_method
     ...
   end
end

class B < A
   def self.some_method
     ...
   end
end

I want to be notified twice. Defining A.singleton_method_added only 
seems to work for the definition of A.some_method, but won't catch the 
definition of B.some_method.

Francis Hwang
http://fhwang.net/