From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM
	autolearn=unavailable autolearn_force=no version=3.4.4
X-Received: by 2002:a6b:1388:: with SMTP id
 8-v6mr8547984iot.129.1525166231759;
        Tue, 01 May 2018 02:17:11 -0700 (PDT)
X-Received: by 2002:a9d:445c:: with SMTP id
 f28-v6mr1210598otj.2.1525166231659;
 Tue, 01 May 2018 02:17:11 -0700 (PDT)
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!feeder.eternal-september.org!news.uzoreto.com!weretis.net!feeder6.news.weretis.net!feeder.usenetexpress.com!feeder-in1.iad1.usenetexpress.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!v8-v6no38605itc.0!news-out.google.com!b185-v6ni4524itb.0!nntp.google.com!k65-v6no2810702ita.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail
Newsgroups: comp.lang.ada
Date: Tue, 1 May 2018 02:17:11 -0700 (PDT)
In-Reply-To: <pc7hk3$tpt$1@dont-email.me>
Complaints-To: groups-abuse@google.com
Injection-Info: glegroupsg2000goo.googlegroups.com;
 posting-host=2003:c7:83d7:a50b:f014:e894:b34c:b257;
 posting-account=rmHyLAoAAADSQmMWJF0a_815Fdd96RDf
NNTP-Posting-Host: 2003:c7:83d7:a50b:f014:e894:b34c:b257
References: <pavkou$1go7$1@gioia.aioe.org> <pavm21$ko5$1@dont-email.me>
 <pavmla$1k1o$1@gioia.aioe.org> <pavp2a$81n$1@dont-email.me>
 <pavqa6$1qdj$1@gioia.aioe.org> <pbr405$lg5$1@franka.jacob-sparre.dk>
 <pbs4km$doq$1@gioia.aioe.org> <pbtjlf$k6q$1@franka.jacob-sparre.dk>
 <pbuk07$9mf$1@gioia.aioe.org> <pc03h3$e9d$1@franka.jacob-sparre.dk>
 <pc1bok$iqf$1@gioia.aioe.org>
 <a4afa3d7-5057-4b01-9ac0-87fde248f5aa@googlegroups.com>
 <pc56s0$o1i$1@gioia.aioe.org>
 <3b736ddf-0807-4781-a973-6164280faae7@googlegroups.com>
 <pc7hk3$tpt$1@dont-email.me>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <f675667c-51cf-4a29-8cee-6f526da04cca@googlegroups.com>
Subject: Re: Finalization of library level tasks
From: AdaMagica <christ-usch.grein@t-online.de>
Injection-Date: Tue, 01 May 2018 09:17:11 +0000
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Xref: reader02.eternal-september.org comp.lang.ada:51877
Date: 2018-05-01T02:17:11-07:00
List-Id: <comp.lang.ada>

Am Montag, 30. April 2018 18:52:21 UTC+2 schrieb Jeffrey R. Carter:
> On 04/30/2018 02:27 PM, AdaMagica wrote:
> >=20
> > In short: If you look inside a class-wide object, you'll find inside an=
 object of a specific type within this class (as Randy said in a previous p=
ost). What's the property of this specific object seen as a class-wide obje=
ct that's not a property of the specific object?
>=20
> About the only difference is that operations dispatch with a class-wide=
=20
> parameter and don't with a parameter of a specific type.
>=20
> Op (Parent'Class (X) );
>=20
> and
>=20
> Op (X);
>=20
> end up executing the same code. That Kazakov says they don't is probably =
an=20
> indication that he, as he often does, is not talking about Ada.

Of course he's not talking about current Ada, he's talking about an Ada as =
he would like her to be as there is no Finalize'Class he would like to have=
.
But he is correct on this example you gave: With redispatch, OP(X) and OP(P=
arent'Class(X)) are not the same.

What I do not understand is the model he wants to have for Finalize'Class. =
The idea is quite complicated because of Rosen's trick, redispatch etc. Dmi=
try only posts some fragmentary ideas without ever giving a complete elabor=
ation. So we, if we try to understand and argue with him, have to imagine a=
nd guess what the hell he has in mind.

As in this (incomplete) post of his:
> Now this procedure:
>    procedure Finalize (X : in out T2);
> if you pass T3 to it then

You cannot directly pass an x of type T3 to this Finalize. You can make his=
 example work if you add quite some more code. His examples like this one, =
if really current Ada (and not some wishful version), are rarely complete.