From: Austin Ziegler <austin@...>
Date: 2003-04-03T05:00:14+09:00
Subject: [ANN] Uninheritable 1.0

Uninheritable provides a simple way to make a class uninheritable
(unable to be subclassed from). While the technique to do this is
not difficult, neither is it immediately obvious, and there is no
standard exception for this.

  require 'uninheritable'

  class A
    extend Uninheritable
  end

  class B < A; end # => raises a TypeError

Installation of "Uninheritable" requires Phil Thomson's installpkg.
Thanks to David Black for his assistance with this on #ruby-talk.

Uninheritable is Copyright &copy; 2003 Austin Ziegler and is
licensed under an MIT-style licence.

-- Austin Ziegler, austin@halostatue.ca on 2003.04.02 at 14:58:49