From: kcline17@hotmail.com (Kevin Cline)
Subject: Re: OOD in Ada?
Date: 24 Jun 2002 13:03:58 -0700
Date: 2002-06-24T20:03:59+00:00 [thread overview]
Message-ID: <ba162549.0206241203.1d375611@posting.google.com> (raw)
In-Reply-To: 3d135676$0$8511$cc9e4d1f@news.dial.pipex.com
"David Crocker" <dcrocker@eschertech.com> wrote in message news:<3d135676$0$8511$cc9e4d1f@news.dial.pipex.com>...
> I know that Ada95 tries to support O-O development, but from my perspective
> as an OO developer but Ada novice, it appears to me that any attempt to
> implement a large OO design in Ada will run into the following problems:
>
> 1. The infamous "withing" problem (i.e. it is not possible to declare 2
> classes A and B, each in its own package, such that A has a method taking a
> paremeter of type "access B", and B has a method with a parameter of type
> "access A");
It's possible to do this in C++ but it's seldom a good idea. Instead
one should declare all mutually dependent classes in a single header
file, and implement them in a single source file.
The Java requirement of a separate file for each class forces one
to physically separate classes that aren't really separable.
Excessive inter-class dependencies make many large OO programs
almost unmaintainable.
>
> 2. The lack of a "dot" notation (or anything similar) for calling a member
> method, making the code hard to read and hard to determine where dynamic
> binding may be taking place.
The C++ community is now questioning the value of the
"dot" notation for calling member functions. Having two different
function call notations makes generic programming more difficult.
next prev parent reply other threads:[~2002-06-24 20:03 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-21 16:39 OOD in Ada? David Crocker
2002-06-21 17:20 ` Pat Rogers
2002-06-21 19:37 ` Ed Falis
2002-06-23 3:05 ` Ted Dennison
2002-06-23 7:03 ` tmoran
2002-06-24 21:41 ` Ted Dennison
2002-06-24 14:19 ` Stephen Leake
2002-06-21 17:22 ` Marin David Condic
2002-06-22 4:42 ` Jeffrey Carter
2002-06-22 9:18 ` Dr. Michael Paus
2002-06-22 9:47 ` Pascal Obry
2002-06-22 13:11 ` Dr. Michael Paus
2002-06-22 13:46 ` OOD in Ada? Correction Dr. Michael Paus
2002-06-22 18:21 ` Simon Wright
2002-06-28 23:57 ` Randy Brukardt
2002-07-09 8:45 ` Preben Randhol
2002-07-09 17:12 ` Mark Biggar
2002-07-09 19:40 ` Randy Brukardt
2002-06-23 3:33 ` OOD in Ada? steve_H
2002-06-23 4:55 ` Jim Rogers
2002-06-23 5:33 ` achrist
2002-06-25 18:00 ` Georg Bauhaus
2002-06-25 18:55 ` Marin David Condic
2002-07-07 18:19 ` Daniel Dudley
2002-06-23 7:46 ` Dr. Michael Paus
2002-06-24 5:06 ` steve_H
2002-06-23 19:26 ` Chad R. Meiners
2002-06-22 22:47 ` Dmitry A.Kazakov
2002-06-24 20:03 ` Kevin Cline [this message]
2002-06-25 13:32 ` David Crocker
2002-06-25 13:58 ` Marin David Condic
2002-06-26 18:16 ` tmoran
2002-06-26 18:47 ` Marin David Condic
2002-06-27 18:23 ` tmoran
2002-06-28 13:09 ` Marin David Condic
2002-06-26 0:59 ` Hyman Rosen
2002-06-26 4:57 ` Jim Rogers
2002-06-26 12:49 ` Marin David Condic
2002-06-26 9:01 ` Fraser Wilson
2002-06-29 0:08 ` Randy Brukardt
2002-07-01 11:50 ` Fraser Wilson
2002-07-05 20:02 ` Stephen J. Bevan
2002-07-09 19:19 ` Craig Carey
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