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From: Florian Weimer <fw@deneb.enyo.de>
Newsgroups: comp.lang.ada
Subject: Preventing type extensions
Date: Sun, 12 Sep 2010 12:18:54 +0200
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Date: 2010-09-12T12:18:54+02:00
List-Id: <comp.lang.ada>

Suppose I've got a tagged type.  I want to expose the fact that it is
a tagged type outside its package, but want to prevent type extensons.
(In short, I'm interested in something like final classes in Java or
C++0X.)

Can this be done?