From: Logan Capaldo <logancapaldo@...>
Date: 2006-06-16T14:37:08+09:00
Subject: Re: Does each over an array bring a counter/index with it?


On Jun 15, 2006, at 7:57 AM, Matthew Harris wrote:

> Ruby's mix-ins are closer to interfaces than they are inheritance.
> Inheritence implies subclassing, most of the time.

Interfaces provide typing.

Inheritance provides typing and implementation

Mixins provide implementation (and typing in Ruby anyway, but they  
don't _have_ to).

I would say Mixins are closer to inheritance than interfaces (esp. in  
a "duck-typed" language).