From: Julien Thewys <jt@...>
Date: 2008-07-23T17:01:06+09:00
Subject: Re: simple module for "count my instances" behaviour

James Coglan wrote:

> I think what you really want is an instance variable in the including 
> class,
> since the counter is a property of the class. The instance variable must 
> be
> created anew in every including class, whereas I think your code will 
> try to
> reuse Countable's @@counter variable for all classes. This code works:

Thanks James.
I was trying to illustrate the use of class variables with modules but, 
as you pointed out, my example is precisely a case where we need class 
instance variables 
(http://www.martinfowler.com/bliki/ClassInstanceVariable.html).
-- 
Posted via http://www.ruby-forum.com/.