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=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,1116ece181be1aea X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-09-15 17:26:52 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!cyclone.bc.net!sjc70.webusenet.com!news.webusenet.com!elnk-nf2-pas!newsfeed.earthlink.net!newsfeed.news2me.com!cyclone1.gnilink.net!spamkiller2.gnilink.net!nwrdny02.gnilink.net.POSTED!53ab2750!not-for-mail From: Ed Falis Newsgroups: comp.lang.ada Subject: Re: Is the Writing on the Wall for Ada? Message-ID: <20030915202554.50c76aee.falis@verizon.net> References: X-Newsreader: Sylpheed version 0.9.5claws (GTK+ 1.2.10; i386-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Date: Tue, 16 Sep 2003 00:26:50 GMT NNTP-Posting-Host: 68.163.107.180 X-Complaints-To: abuse@verizon.net X-Trace: nwrdny02.gnilink.net 1063672010 68.163.107.180 (Mon, 15 Sep 2003 20:26:50 EDT) NNTP-Posting-Date: Mon, 15 Sep 2003 20:26:50 EDT Xref: archiver1.google.com comp.lang.ada:42551 Date: 2003-09-16T00:26:50+00:00 List-Id: On Mon, 15 Sep 2003 23:31:08 GMT Matthew Heaney wrote: > The multiple views idiom in Ada95 doesn't preclude that at all. See > my post on Mon, 15 Sep 2003, in which My_Object type "inherits" from > two existing types. It inherits both interface and implementation, > and the only new code I wrote was for trivial multiple views > infrastructure. Matt's on the money with this one. I've used the same idiom to implement things I've designed using Reenskaug's role synthesis approach. The thing I will say, though, is that it takes a lot more plumbing to do it in Ada than to do it in eg Eiffel. - Ed