From: Michel Demazure <michel@...>
Date: 2010-02-11T23:18:42+09:00
Subject: Re: "Code must be Chunkable"

Thomas Sawyer wrote:
> 
> Notice the remarked #unextend lines. For a real implementation of DCI,
> we would want to remove these roles once we used them, but Ruby's
> extend doesn't allow that, of course.
> 

Could you not extend again by a Module which would undefine the added 
methods ?
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