From: Eli Bendersky <eliben@...>
Date: 2007-06-16T06:20:13+09:00
Subject: Re: Abstract interfaces as a means of documentation


> 4) Create a Module and document the method in the module, and then
> include that module in each class. Similar to your abstract class, but
> solves the problems of instantiation, and allows you to mix in methods
> along various axes.
>
> module JumpingClimbingPlayer
>   # docs here
>   def jump
>     raise "You should implement this per player"
>     # or maybe implement the common technique
>   end
>
>   # same for climb
> end
>
> class FooTypePlayer
>   include JumpingClimbingPlayer
>   def jump
>     # specific implementation here
>   end
> end

Is this really different from declaring JumpingClimbingPlayer as a
class and inheriting the concrete classes from it, like:

class FooTypePlayer < JumpingClimbingPlayer

?