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
	autolearn=unavailable autolearn_force=no version=3.4.4
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!nntp-feed.chiark.greenend.org.uk!ewrotcd!newsfeed.xs3.de!io.xs3.de!news.jacob-sparre.dk!franka.jacob-sparre.dk!pnx.dk!.POSTED!not-for-mail
From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Constructing by classwide type
Date: Tue, 18 Apr 2017 13:57:09 -0500
Organization: JSA Research & Innovation
Message-ID: <od5ni6$u99$1@franka.jacob-sparre.dk>
References: <93d2cfb3-1518-4d99-8075-e636e1f32b5d@googlegroups.com>
 <od5ins$drj$1@dont-email.me>
NNTP-Posting-Host: rrsoftware.com
X-Trace: franka.jacob-sparre.dk 1492541830 31017 24.196.82.226 (18 Apr 2017
 18:57:10 GMT)
X-Complaints-To: news@jacob-sparre.dk
NNTP-Posting-Date: Tue, 18 Apr 2017 18:57:10 +0000 (UTC)
X-Priority: 3
X-MSMail-Priority: Normal
X-Newsreader: Microsoft Outlook Express 6.00.2900.5931
X-RFC2646: Format=Flowed; Response
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157
Xref: news.eternal-september.org comp.lang.ada:46592
Date: 2017-04-18T13:57:09-05:00
List-Id: <comp.lang.ada>

"Alejandro R. Mosteo" <alejandro@mosteo.com> wrote in message 
news:od5ins$drj$1@dont-email.me...
...
> I've been under the same circumstances recently and wondered the same. I 
> hope you get some informed answers. Until date, I have noticed no 
> drawbacks and all the advantages you mention.

I don't think there is AN answer. Unless you have to satisfy someone who is 
worshipping a the church of OOP, the best design is the one that works for 
your application, minimizes unnecessary coupling, and makes as many errors 
as possible detectable at compile-time. Use ALL of the features of Ada to 
get there, both OOP and non-OOP features. (Case completeness checks make a 
big difference in being able to modify non-OOP variant record types 
safely -- I find no obvious difference in maintainability between the 
Janus/Ada compiler [designed before OOP was a 'thing'] and the Claw Builder 
[a pure OOP design]. Indeed, incremental development is easier on Janus/Ada 
as usually one doesn't need to write as much code to get it to compile/run.

Anyway, in programming design, there is no one right answer. Ada has a big 
toolbox, it makes sense to use it all.

                                               Randy.