From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: Ada Interfaces and the Liskov Substitution Principle
Date: Wed, 23 May 2007 16:58:05 -0500
Date: 2007-05-23T16:58:05-05:00 [thread overview]
Message-ID: <f32d9o$fi9$1@jacob-sparre.dk> (raw)
In-Reply-To: 1179953657.839272.160320@a26g2000pre.googlegroups.com
"Maciej Sobczak" <see.my.homepage@gmail.com> wrote in message
news:1179953657.839272.160320@a26g2000pre.googlegroups.com...
> On 23 Maj, 21:47, Stefan Lucks <l...@th.informatik.uni-mannheim.de>
> wrote:
>
> > to me, it seems as if Ada 2005 is bluntly violating the Liskov
> > Substitution Prinicple. E.g., define
>
> [...]
>
> Interesting.
>
> My humble opinion: assignment of class-wide types should be prohibited
> in the first place. I mean - at compile time.
> It's just asking for troubles.
That doesn't make much sense. Yes, it is a bit weird that assignment is
potentially a dispatching operation, but otherwise there is no semantic
problem with it. (The OP having an illegal example, thus proving nothing.)
It might be a bit hard to use usefully, but that's no reason for banning it.
Randy.
next prev parent reply other threads:[~2007-05-23 21:58 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-23 19:47 Ada Interfaces and the Liskov Substitution Principle Stefan Lucks
2007-05-23 20:32 ` Ludovic Brenta
2007-05-23 22:00 ` Randy Brukardt
2007-05-24 0:56 ` Anh Vo
2007-05-24 18:27 ` Pascal Obry
2007-05-24 18:39 ` Dmitry A. Kazakov
2007-05-24 18:51 ` Pascal Obry
2007-05-24 22:44 ` Randy Brukardt
2007-05-24 6:57 ` Stefan Lucks
2007-05-23 20:54 ` Maciej Sobczak
2007-05-23 21:58 ` Randy Brukardt [this message]
2007-05-24 7:29 ` Maciej Sobczak
2007-05-24 8:02 ` Dmitry A. Kazakov
2007-05-24 12:58 ` Maciej Sobczak
2007-05-24 13:42 ` Dmitry A. Kazakov
2007-05-24 22:08 ` Robert A Duff
2007-07-01 1:00 ` David Thompson
2007-05-24 22:58 ` Randy Brukardt
2007-05-25 7:52 ` Maciej Sobczak
2007-05-25 8:21 ` Dmitry A. Kazakov
2007-05-25 20:27 ` Maciej Sobczak
2007-05-26 7:48 ` Dmitry A. Kazakov
2007-05-27 8:30 ` Maciej Sobczak
2007-05-27 10:04 ` Dmitry A. Kazakov
2007-05-29 8:03 ` Maciej Sobczak
2007-05-29 13:18 ` Dmitry A. Kazakov
2007-05-29 13:32 ` Dmitry A. Kazakov
2007-05-29 15:34 ` Maciej Sobczak
2007-05-29 17:07 ` Dmitry A. Kazakov
2007-05-30 7:40 ` Maciej Sobczak
2007-05-30 8:43 ` Dmitry A. Kazakov
2007-05-30 12:54 ` Maciej Sobczak
2007-05-30 13:56 ` Dmitry A. Kazakov
2007-05-30 16:49 ` vgodunko
2007-05-30 20:52 ` Maciej Sobczak
2007-05-31 8:15 ` Dmitry A. Kazakov
2007-05-31 13:46 ` Maciej Sobczak
2007-06-01 7:29 ` Dmitry A. Kazakov
2007-06-01 13:32 ` Maciej Sobczak
2007-06-01 14:53 ` Dmitry A. Kazakov
2007-06-01 20:31 ` Maciej Sobczak
2007-06-02 8:19 ` Dmitry A. Kazakov
2007-06-02 16:49 ` Maciej Sobczak
2007-06-03 7:09 ` Dmitry A. Kazakov
2007-06-03 22:04 ` Maciej Sobczak
2007-06-04 8:08 ` Dmitry A. Kazakov
2007-06-04 17:02 ` Maciej Sobczak
2007-06-05 8:35 ` Dmitry A. Kazakov
2007-06-05 22:12 ` Maciej Sobczak
2007-06-06 8:21 ` Dmitry A. Kazakov
2007-06-06 14:46 ` Maciej Sobczak
2007-06-06 15:11 ` Maciej Sobczak
2007-06-06 15:32 ` Markus E Leypold
2007-05-24 10:42 ` Georg Bauhaus
2007-05-24 13:41 ` Dmitry A. Kazakov
2007-05-25 16:59 ` Markus E Leypold
2007-05-28 9:52 ` Georg Bauhaus
2007-05-28 11:50 ` Dmitry A. Kazakov
2007-05-28 23:32 ` Georg Bauhaus
2007-05-29 12:05 ` Dmitry A. Kazakov
2007-05-29 13:33 ` Georg Bauhaus
2007-05-29 17:29 ` Dmitry A. Kazakov
2007-05-29 20:46 ` Georg Bauhaus
2007-05-30 7:53 ` Dmitry A. Kazakov
2007-05-30 13:18 ` Georg Bauhaus
2007-05-31 10:27 ` Dmitry A. Kazakov
2007-05-31 11:44 ` Georg Bauhaus
2007-06-01 7:37 ` Dmitry A. Kazakov
2007-06-01 10:07 ` Markus E Leypold
2007-06-01 11:41 ` Georg Bauhaus
2007-06-01 13:07 ` Dmitry A. Kazakov
2007-05-28 13:47 ` Markus E Leypold
2007-05-28 23:12 ` Georg Bauhaus
2007-05-28 13:56 ` Markus E Leypold
2007-05-28 23:00 ` Georg Bauhaus
2007-05-24 7:39 ` Dmitry A. Kazakov
2007-05-24 11:12 ` Stefan Lucks
2007-05-24 13:56 ` Dmitry A. Kazakov
2007-05-24 14:41 ` Stefan Lucks
2007-05-24 15:46 ` Dmitry A. Kazakov
2007-05-24 15:00 ` Georg Bauhaus
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