From: Paul Brannan <paul@...>
Date: 2002-03-21T23:13:17+09:00
Subject: Re: Windows version of Ruby (proposals)

On Thu, Mar 21, 2002 at 11:04:55PM +0900, Dave Thomas wrote:
> Then, we provide a set of environment support modules for those
> classes that currently contain non-portable methods. We could have
> (for example)
> 
>     module SysdepFilePosix
>       ...
>     end
> 
>     module SysdepFileWin32
>       ...
>     end
> 
> Mix one of these into class File and you'll get all the system
> dependent calls. You'll also be explicitly marking your code as
> non-portable.

This would be a global change, and may not be desirable.  What are the
advantages of mixing a module into File over subclassing from File?

Paul