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,c9629eba26884d78 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-08-02 05:08:47 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!headwall.stanford.edu!newshub.sdsu.edu!elnk-nf2-pas!newsfeed.earthlink.net!stamper.news.pas.earthlink.net!stamper.news.atl.earthlink.net!harp.news.atl.earthlink.net!not-for-mail From: Marin David Condic Newsgroups: comp.lang.ada Subject: Re: XML DOM Binding for Ada 95 - matter of style Date: Sat, 02 Aug 2003 08:08:40 -0400 Organization: MindSpring Enterprises Message-ID: <3F2BA9C8.9030700@noplace.com> References: <3f27bab4$1@baen1673807.greenlnk.net> <3F28F61D.4050504@noplace.com> <3F2A5303.6080902@noplace.com> NNTP-Posting-Host: d1.56.b0.40 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Server-Date: 2 Aug 2003 12:08:47 GMT User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 (OEM-HPQ-PRS1C03) X-Accept-Language: en-us, en Xref: archiver1.google.com comp.lang.ada:41141 Date: 2003-08-02T12:08:47+00:00 List-Id: So things like type extension don't count? :-) I see tagged types as the way to fully implement the Object Oriented paradigm in Ada. Other mechanisms in Ada could be used to support parts of the OO paradigm - sometimes they have to be brutally flogged into that service - but none really creates the full OO paradigm as do tagged types. Not all programs require OO nor are they best expressed in the OO method. I work on software like that every day. But if you have an OO design, I'd think that trying to beat it into submission with the blunt instrument of a discriminated record is not the best approach. If it is an OO design, create an OO implementation with the correct Ada idiom for that - the tagged record and its surrounding package components. MDC Matthew Heaney wrote: > > > The purpose of tagged records is to implement dynamic binding. > -- ====================================================================== Marin David Condic I work for: http://www.belcan.com/ My project is: http://www.jast.mil/ Send Replies To: m c o n d i c @ a c m . o r g "In general the art of government consists in taking as much money as possible from one class of citizens to give to the other." -- Voltaire ======================================================================