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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: abstract sub programs overriding
Date: Tue, 16 Mar 2004 17:16:57 -0600
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Date: 2004-03-16T17:16:57-06:00
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"Hyman Rosen" <hyrosen@mail.com> wrote in message
news:1079466915.690786@master.nyc.kbcfp.com...
> Robert I. Eachus wrote:
> > Interesting thought.  RM 7.6 (17, 17.1, and 21) permit an implementation
> > to omit that Finalization, and requires that it be omitted in some
> > cases.  But you are right that a compiler could actually do that call in
> > some circumstances.
>
> I don't think compilers can eliminate that Finalize call. 7.6/17 says,
> without listing any exceptions, "The target of the assignment_statement
> is then finalized." All the other permissions deal with the temporary
> anonymous object that the canonical semantics create.

Right. 7.6(21) allows lots of bogus 'optimizations', but this has been
corrected by AI-147. That AI was a beast to get right, and I certainly don't
want to have to go back there...

                 Randy.