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From: "Alex R. Mosteo" <devnull@mailinator.com>
Newsgroups: comp.lang.ada
Subject: Re: Free'ing dynamic abstract tagged types..
Date: Fri, 22 Sep 2006 09:41:07 +0200
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Date: 2006-09-22T09:41:07+02:00
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Randy Brukardt wrote:

(snip) 
> Since you can't add Controlled to an inheritance tree after the fact, I
> think that *all* tagged type trees should be derived from Controlled or
> Limited_Controlled. (Otherwise, you're saying that the extensions don't
> need any clean-up, which is likely to be constraining.)

This is something I've wondered some times with the introduction of
interfaces in Ada05: Could not have been defined in Ada.Finalization a
corresponding interface? This way objects not rooted at Controlled could
later easily add finalization.