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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Ada Successor Language
Date: Tue, 26 Jun 2018 09:57:21 +0200
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Xref: reader02.eternal-september.org comp.lang.ada:53317
Date: 2018-06-26T09:57:21+02:00
List-Id: <comp.lang.ada>

On 2018-06-25 22:52, Niklas Holsti wrote:
> The compiler would construct the tag values for an untagged type 
> derivation tree just as for tagged types, but would not store the tag 
> values in objects.

And during binding/linking it would throw away any generated dispatching 
tables if there is no reference to T'Class (or X'Tag) for the given 
hierarchy of types in the program. I think it is a simple enough global 
optimization to perform.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de