From: Daniel Schierbeck <daniel.schierbeck@...>
Date: 2006-06-11T21:42:13+09:00
Subject: Re: Why the lack of mixing-in support for Class methods?

Yukihiro Matsumoto wrote:
> Redundancy can be removed by some kind of meta programming.

This could do the job:

   class Module
     def class_methods(&block)
       @class_methods = block
     end

     def included(mod)
       (class << mod; self; end).module_eval(&@class_methods)
     end
   end

   module Mod
     class_methods do
       def foo
         "FOO"
       end
     end

     def bar
       "BAR"
     end
   end

   class Test
     include Mod
   end

   Test.foo      #=> "FOO"
   Test.new.bar  #=> "BAR"


Cheers,
Daniel