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From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Ada Annoyances
Date: Tue, 4 Jul 2017 22:32:19 +0300
Organization: Tidorum Ltd
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Xref: news.eternal-september.org comp.lang.ada:47287
Date: 2017-07-04T22:32:19+03:00
List-Id: <comp.lang.ada>

On 17-06-30 00:29 , Robert A Duff wrote:
> Niklas Holsti <niklas.holsti@tidorum.invalid> writes:
>
>> Isn't finalization of local objects usually implemented by creating a
>> list of these objects, and then traversing that list on scope exit?
>
> No.  That method was used originally by GNAT, but it was changed to
> a simpler and much more efficient method.

Ok, understood and good to know, thanks.

>> ...It
>> seems to me that changing the tag of an object on the list should not be
>> a problem; the new tag would just lead to a different Finalize, through
>> normal dispatching.
>
> I agree, I don't see a problem here.  When Finalize is called, it
> dispatches via the currrent Tag.  Tags can't change in Ada, but if they
> could it would still dispatch via the Tag value present when Finalize is
> called.

We agree on that, good.

-- 
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
       .      @       .