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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,2ea02452876a15e1 X-Google-Attributes: gid103376,public From: jsa@organon.com (Jon S Anthony) Subject: Re: Real OO (was Choice of OO primitives in Ada95) Date: 1996/02/22 Message-ID: #1/1 X-Deja-AN: 140696198 sender: news@organon.com (news) references: organization: Organon Motives, Inc. newsgroups: comp.lang.ada Date: 1996-02-22T00:00:00+00:00 List-Id: In article dewar@cs.nyu.edu (Robert Dewar) writes: > Don says > > "Note that Ada only fully satisfies 2) and has a sub-optimal mechanism for 1)." > > Well that's no more than an opinion, you provide no objective criterion to > justify this opinion. In fact I think that Ada 95 satisfies 1) more > convincingly than Eiffel. This has been discussed many times on this news > group, and I don't particularly have anything to add to those previous > discussions, I think it has all been said before! > > The value of executable assertions has been hotly debated. To regard them > as an essential part of OO programming seems odd to me, but of course > people are free to say "x is essential for OO in my view" for almost > any X (and all sorts of x's have been suggested). One trouble with > executable assertions is that they are at the wrong level of abstraction, > since they are confined to be at the semantic level of the language, and > generally you want to talk about abstractions at a higher level. Yes, Don says a lot of things. He also says the following in c.l.e: <<< Newsgroups: comp.lang.eiffel Path: alexandria.organon.com!uunet!in2.uu.net!usc!howland.reston.ans.net!nntp.coast.net!harbinger.cc.monash.edu.au!news.mel.connect.com.au!news.syd.connect.com.au!warrane.connect.com.au!assip.csasyd!news From: donh@syd.csa.com.au (Don Harrison) Subject: Real OO Message-ID: Sender: news@assip.csasyd.oz Reply-To: donh@syd.csa.com.au Organization: CSC Australia Date: Thu, 22 Feb 1996 04:03:31 GMT Lines: 11 For anyone interested, I've just stirred up the Ada nest with a posting titled 'Real OO'. I didn't cross post it to here, for fear of boring you all with endless follow-ups. Regards, Don. >>> Basically, he's just trolling. So, it is best to not waste time replying to anything he posts. /Jon -- Jon Anthony Organon Motives, Inc. 1 Williston Road, Suite 4 Belmont, MA 02178 617.484.3383 jsa@organon.com