From: Matthew Heaney <matthew_heaney@acm.org>
Subject: Re: A question for my personal knowledge.
Date: 1999/05/15
Date: 1999-05-15T00:00:00+00:00 [thread overview]
Message-ID: <m3emkipkmk.fsf@mheaney.ni.net> (raw)
In-Reply-To: m3lneqn8a7.fsf@deneb.cygnus.stuttgart.netsurf.de
Florian Weimer <fw@cygnus.stuttgart.netsurf.de> writes:
> > Yes, that is even better. Now In Ada, how does one send a message to a
> > tagged record??
>
> `Message(Tagged_Record_Variable);'?
>
> I'm not sure whether Ada is a bit nearer to the message-based model
> than C++ or Java because I haven't understood all the implications of
> the Ada approach yet.
One implication of the Ada approach is that binary operations are more
natural:
Marry (John, Jane);
The operation "marriage" applies to each object equally.
> C++ and Java lack truely dynamic message dispatching (i.e. you can
> only send a message to an object if its class (or some suitable base
> class) is known at compile-time), and judging from my preliminary
> understanding, Ada doesn't have this capability, either. Of course,
> you can implement dynamic dispatching in almost any (even non-OO)
> languages used today, but without syntactic support of some kind, your
> code won't be easy to write or read.
Your choice of nomenclature is unfortunate, because everyone else uses
the term "dynamic message dispatching" to refer to run-time binding,
which Ada95, C++, and Java _do_ have.
next prev parent reply other threads:[~1999-05-15 0:00 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-05-10 0:00 A question for my personal knowledge Siamak Kaveh
1999-05-10 0:00 ` Roy Grimm
1999-05-11 0:00 ` Pascal Obry
1999-05-11 0:00 ` Roy Grimm
1999-05-11 0:00 ` Robert Dewar
1999-05-11 0:00 ` dennison
1999-05-13 0:00 ` Mike Yoder
1999-05-13 0:00 ` Mike
1999-05-13 0:00 ` Martin C. Carlisle
1999-05-14 0:00 ` Dale Stanbrough
1999-05-13 0:00 ` Mike
1999-05-13 0:00 ` Brian Rogoff
1999-05-13 0:00 ` David Starner
1999-05-18 0:00 ` Georg Bauhaus
1999-05-14 0:00 ` Florian Weimer
1999-05-14 0:00 ` Steve
1999-05-15 0:00 ` Florian Weimer
1999-05-15 0:00 ` Matthew Heaney [this message]
1999-05-14 0:00 ` Dale Stanbrough
1999-05-15 0:00 ` Matthew Heaney
1999-05-18 0:00 ` Richard D Riehle
1999-05-18 0:00 ` Hyman Rosen
1999-05-18 0:00 ` Richard D Riehle
1999-05-18 0:00 ` Hyman Rosen
1999-05-19 0:00 ` Richard D Riehle
1999-05-11 0:00 ` Roy Grimm
1999-05-12 0:00 ` Robert A Duff
1999-05-11 0:00 ` Marin David Condic
1999-05-11 0:00 ` Roy Grimm
1999-05-11 0:00 ` Tucker Taft
1999-05-11 0:00 ` Roy Grimm
1999-05-12 0:00 ` Roger Racine
1999-05-12 0:00 ` Marin David Condic
1999-05-17 0:00 ` Richard D Riehle
1999-05-18 0:00 ` Marin David Condic
1999-05-18 0:00 ` bglbv
1999-05-18 0:00 ` William B. Clodius
1999-05-17 0:00 ` Charlie McCutcheon
1999-05-17 0:00 ` Marin David Condic
1999-05-17 0:00 ` Larry Kilgallen
1999-05-17 0:00 ` Chris
1999-05-17 0:00 ` Marin David Condic
1999-05-10 0:00 ` Marin David Condic
1999-05-10 0:00 ` Paul Whittington
1999-05-10 0:00 ` Marin David Condic
1999-05-10 0:00 ` Dan Nagle
1999-05-10 0:00 ` Larry Kilgallen
1999-05-10 0:00 ` Keith Thompson
1999-05-12 0:00 ` Charlie McCutcheon
1999-05-12 0:00 ` Werner Pachler
1999-05-17 0:00 ` Charlie McCutcheon
1999-05-17 0:00 ` bglbv
1999-05-17 0:00 ` Larry Kilgallen
1999-05-18 0:00 ` bglbv
1999-05-19 0:00 ` Larry Kilgallen
1999-05-10 0:00 ` Sam
1999-05-11 0:00 ` Jean-Pierre Rosen
1999-05-11 0:00 ` Robert Dewar
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