From: Robert Klemme <bob.news@...>
Date: 2005-09-21T01:46:40+09:00
Subject: Re: Interesting class

christophe.poucet@gmail.com wrote:
> Dear,
> 
> Though mixins are a very nice alternative for multiple inheritance,
> they do sometimes cause name crashes that are quite annoying.  In a
> recent project I was working on, a design choice I made is that
> everything would be destroyed with the method 'teardown'.  What I mean
> is that connections are closed, files are closed, etc etc..  As I was
> refactoring the code, I noticed two pieces of code that could  each be
> put into their own module (factored out).  However this led to the
> fact that both the class that included the module as well as the
> super class of that class and the class itself had the method
> teardown.  I could've chosen to rename the method inside the
> extracted module, but instead I came up with quite an interesting and
> reusable pattern. 
> 
> The idea is that if you have a module with certain methods, you rename
> those methods to modulenameinlowercase_methodname in the module.  It
> is important that for this to work, the module must be included in the
> class after any methods with similar names have been defined.
> (Preferably at the end of the class).

Wouldn't it be simpler to do

class Object
  def teardown() end
end

and in each module and class

module Foo
  def teardown
    # local cleanup
    super
  end
end

?

Kind regards

    robert