From: James Edward Gray II <james@...>
Date: 2006-06-12T00:05:47+09:00
Subject: Re: Why the lack of mixing-in support for Class methods?

On Jun 11, 2006, at 7:42 AM, Daniel Schierbeck wrote:

> Yukihiro Matsumoto wrote:
>> Redundancy can be removed by some kind of meta programming.
>
> This could do the job:

Here's another idea:

 >> class Module
 >>   def included(receiver)
 >>     receiver.extend(const_get(:ClassMethods)) if  
const_defined? :ClassMethods
 >>   end
 >> end
=> nil
 >> module Test
 >>   module ClassMethods
 >>     def test
 >>       "I'm a class method."
 >>     end
 >>   end
 >>   def test
 >>     "I'm an instance method."
 >>   end
 >> end
=> nil
 >> class MyTest
 >>   include Test
 >> end
=> MyTest
 >> MyTest.test
=> "I'm a class method."
 >> MyTest.new.test
=> "I'm an instance method."

James Edward Gray II