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:a5d:8619:: with SMTP id f25mr14972165iol.31.1546722595371; Sat, 05 Jan 2019 13:09:55 -0800 (PST) X-Received: by 2002:aca:cc0f:: with SMTP id c15mr694225oig.3.1546722595203; Sat, 05 Jan 2019 13:09:55 -0800 (PST) Path: eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!news.uzoreto.com!2.eu.feeder.erje.net!4.us.feeder.erje.net!feeder.erje.net!weretis.net!feeder6.news.weretis.net!feeder.usenetexpress.com!feeder-in1.iad1.usenetexpress.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!q69no430239itb.0!news-out.google.com!v141ni340ita.0!nntp.google.com!k10no431281itk.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Sat, 5 Jan 2019 13:09:54 -0800 (PST) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=76.18.64.97; posting-account=lJ3JNwoAAAAQfH3VV9vttJLkThaxtTfC NNTP-Posting-Host: 76.18.64.97 References: <2a6929c5-72fa-4d84-953a-44ea4597ab38@googlegroups.com> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: Subject: Re: class wide iterable (and indexable) From: Shark8 Injection-Date: Sat, 05 Jan 2019 21:09:55 +0000 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Xref: reader01.eternal-september.org comp.lang.ada:55204 Date: 2019-01-05T13:09:54-08:00 List-Id: On Saturday, January 5, 2019 at 10:05:50 AM UTC-7, Jeffrey R. Carter wrote: >=20 > A major problem with programming by extension is that it requires violati= ng the=20 > S/W-engineering principle of locality. S/W engineers don't willingly viol= ate=20 > those principles, so we can conclude that those who like programming by= =20 > extension are not S/W engineers. Hm, I'm not sure I agree with you -- plug-ins seem to be a counter-example = in that they *are* extensions [of the base program] -- it seems a bit exces= sive to think that any program that uses/handles plug-ins is ill-designed a= nd by-nature violative of good SW engineering. Of course this is an interesting observation in its own right, and I should= like to hear more.