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.rrsoftware.com!not-for-mail From: "Randy Brukardt" Newsgroups: comp.lang.ada Subject: Re: Musing on defining attributes and the ability to define an "abstract type X"-interface. Date: Mon, 7 Aug 2017 18:12:14 -0500 Organization: JSA Research & Innovation Message-ID: References: <9617c73b-e23e-405b-8544-4d17e7e3ad61@googlegroups.com> <28512bf1-0c2c-400f-a24f-cc7e0eb8a02d@googlegroups.com> <87h8y67trd.fsf@jacob-sparre.dk> <36a1a83d-f3d7-4e3c-827d-addeadc28ccc@googlegroups.com> Injection-Date: Mon, 7 Aug 2017 23:12:15 -0000 (UTC) Injection-Info: franka.jacob-sparre.dk; posting-host="rrsoftware.com:24.196.82.226"; logging-data="28727"; mail-complaints-to="news@jacob-sparre.dk" X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.5931 X-RFC2646: Format=Flowed; Original X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.7246 Xref: news.eternal-september.org comp.lang.ada:47640 Date: 2017-08-07T18:12:14-05:00 List-Id: "Shark8" wrote in message news:36a1a83d-f3d7-4e3c-827d-addeadc28ccc@googlegroups.com... >!topic Adding an "Abstract Type" to enable simplification of the language >definition. >!reference Ada2012 RM??.??(??) >!from Edward Fish 17-08-05 >!keywords abstraction, types, simplification >!discussion I doubt anyone wants to do a lot of work just to "simplify the language definition". By years of experience, there is no such thing -- it will just be a *different* language definition, with a different set of pitfalls. Remember that the language is maintained almost exclusively by volunteers - people are not signing up to make changes for the sake of changes. My guess is that a proposal like this would go directly to the round file (an AC, where it will be ignored forever). If you want a proposal to be taken seriously, you have to explain the problem first, and then optionally give a solution. As the request for Community Input says: >For enhancement requests, it is very important to describe the programming >problem and why the Ada 2012 solution is complex, expensive, or impossible. Randy.