From: Stephen White <spwhite@...>
Date: 2001-08-23T06:57:38+09:00
Subject: [ruby-talk:20127] Another Possible RCR - Wrappers via Mixins

The main difference between mix-ins and multiple inheritence is (to my understanding) that parent classes do not call child code, but mix-ins do.

Given this, perhaps mix-ins are a good place to do AOP style wrappers? If a mix-in has a method with the same name as the class being mixed into, then the mix-in code gets called then super's up.

Eg:

 �module Test
 ���def fred *args
 �����puts "1"
 �����super *args
 �����puts "2"
 ���end
 �end

 �include Test

 �def fred str
 ���puts str
 �end

 �fred "hello world"

will print

 �1
 �hello world
 �2

This would also work for dynamic methods created in the Mixin namespace,
enabling AOP style wrapping.

That'd be neater than all the method renaming. :)