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=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD,
	FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4
X-Received: by 2002:a5e:c74b:: with SMTP id
 g11-v6mr4436068iop.38.1538761591251;
        Fri, 05 Oct 2018 10:46:31 -0700 (PDT)
X-Received: by 2002:aca:7552:: with SMTP id q79-v6mr219247oic.1.1538761590897;
 Fri, 05 Oct 2018 10:46:30 -0700 (PDT)
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!feeder.eternal-september.org!2.eu.feeder.erje.net!4.us.feeder.erje.net!feeder.erje.net!feeder.usenetexpress.com!feeder-in1.iad1.usenetexpress.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!x98-v6no93925ita.0!news-out.google.com!n199-v6ni124itn.0!nntp.google.com!z5-v6no92869ite.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail
Newsgroups: comp.lang.ada
Date: Fri, 5 Oct 2018 10:46:30 -0700 (PDT)
Complaints-To: groups-abuse@google.com
Injection-Info: glegroupsg2000goo.googlegroups.com;
 posting-host=2001:14bb:51:2563:5c83:217e:4aa9:f00;
 posting-account=9KbC2woAAAA0kK2IAUr3-FkzJBtOzrhm
NNTP-Posting-Host: 2001:14bb:51:2563:5c83:217e:4aa9:f00
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <0f5608ef-0038-491c-b15f-f67bcc76fae8@googlegroups.com>
Subject: Record operations (Algebraic Data Types and printing)
From: =?UTF-8?B?SGVucmlrIEjDpHJrw7ZuZW4=?= <heharkon@gmail.com>
Injection-Date: Fri, 05 Oct 2018 17:46:31 +0000
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Xref: reader02.eternal-september.org comp.lang.ada:54486
Date: 2018-10-05T10:46:30-07:00
List-Id: <comp.lang.ada>

Hi! (Very) Slowly getting my Ada wheels rolling, didn't get the book yet et=
c. but anyway...

I'm coming from Scala world most recently and I like to leverage Algebraic =
Data Types (through sealed traits), or Discriminated Unions, as they were c=
alled in F#. I was happy to find out that Ada has Variant Record, which I b=
elieve pretty much covers the same thing. Maybe in a bit more verbose way. =
:) I'm somehow fascinated by the possibility to carry state as the type, th=
us with different data items for each state.

Now as I'm playing with the records, I'd like to print them out, just for "=
debugging" purposes. Is there any convenient way to splash them out in cons=
ole? Some sort of default string representation? Seems that 'Image attribut=
e works only for scalar types.

-Henrik