From: Daniel Schierbeck <daniel.schierbeck@...>
Date: 2006-06-15T21:10:15+09:00
Subject: Re: Why the lack of mixing-in support for Class methods?

Simplification. Tell me if I should stop spamming.

   class Module
     def class_extension(&block)
       @class_extension ||= Module.new do
         def self.included(mod); end
       end
       @class_extension.module_eval(&block) if block_given?
       @class_extension
     end

     def included(mod)
       mod.extend(class_extension)
       if mod.instance_of? Module and mod.respond_to? :class_extension
         mod.send(:class_extension).send(:include, class_extension)
       end
     end
   end

The code might need a change if we decide to make #class_extension private.


Daniel