From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Inherited Methods and such
Date: Wed, 19 Sep 2007 17:16:11 +0200
Date: 2007-09-19T17:10:46+02:00 [thread overview]
Message-ID: <1fl2wnziigxfd.1fjbag2hh8sbc$.dlg@40tude.net> (raw)
In-Reply-To: 1190213376.707449.146640@g4g2000hsf.googlegroups.com
On Wed, 19 Sep 2007 07:49:36 -0700, Maciej Sobczak wrote:
> On 18 Wrz, 23:12, "Dmitry A. Kazakov" <mail...@dmitry-kazakov.de>
> wrote:
>
>> But from behavioral point of view, the type is just equivalent to the
>> behavior of its values. If an object behaves as if it had a specific type,
>> then it just has that type
>
> Yes. What if that behaviour changes over time? Would you say that the
> type changes over time as well?
It cannot. Behavior is time-invariant, because it summarizes our
expectance. If our expectance is wrong, then the program is incorrect, and
reverse.
> This is what justifies the concept of "dynamic type".
No it does not. How does a dynamic type behave? The answer is - its objects
dispatch in this an that way. The description of how they do this is the
behavior, and it does not change... Or else it is not a well-typed language
[that is in case when T'Class acts as if it were T, because it is not yet
constructed, or whatever excuse one might use.]
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2007-09-19 15:16 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-17 14:26 Inherited Methods and such shaunpatterson
2007-09-17 15:11 ` Ludovic Brenta
2007-09-17 16:46 ` shaunpatterson
2007-09-17 19:07 ` Ludovic Brenta
2007-09-17 20:22 ` Maciej Sobczak
2007-09-17 21:07 ` Ludovic Brenta
2007-09-18 14:27 ` Maciej Sobczak
2007-09-18 14:27 ` Maciej Sobczak
2007-09-18 15:25 ` Dmitry A. Kazakov
2007-09-18 18:34 ` Ludovic Brenta
2007-09-18 19:29 ` Dmitry A. Kazakov
2007-09-18 19:39 ` Ludovic Brenta
2007-09-18 20:49 ` Dmitry A. Kazakov
2007-09-18 21:10 ` Simon Wright
2007-09-18 20:39 ` Maciej Sobczak
2007-09-18 21:12 ` Dmitry A. Kazakov
2007-09-19 14:49 ` Maciej Sobczak
2007-09-19 15:16 ` Dmitry A. Kazakov [this message]
2007-09-19 22:13 ` Maciej Sobczak
2007-09-20 8:12 ` Dmitry A. Kazakov
2007-09-20 13:52 ` Maciej Sobczak
2007-09-20 16:22 ` Dmitry A. Kazakov
2007-09-20 20:45 ` Maciej Sobczak
2007-09-21 18:59 ` Dmitry A. Kazakov
2007-09-21 21:02 ` Maciej Sobczak
2007-09-22 8:48 ` Dmitry A. Kazakov
2007-09-22 21:53 ` Maciej Sobczak
2007-09-23 8:41 ` Dmitry A. Kazakov
2007-09-23 20:36 ` Maciej Sobczak
2007-09-24 9:32 ` Dmitry A. Kazakov
2007-09-24 15:02 ` Maciej Sobczak
2007-09-24 19:20 ` Dmitry A. Kazakov
2007-09-25 20:53 ` Maciej Sobczak
2007-09-26 10:42 ` Dmitry A. Kazakov
2007-09-26 21:31 ` Maciej Sobczak
2007-09-27 15:02 ` Dmitry A. Kazakov
2007-09-27 21:02 ` Maciej Sobczak
2007-09-26 12:21 ` Robert A Duff
2007-09-26 12:54 ` Dmitry A. Kazakov
2007-09-26 21:37 ` Maciej Sobczak
2007-09-26 23:47 ` Randy Brukardt
2007-09-27 21:08 ` Maciej Sobczak
2007-09-28 0:44 ` Randy Brukardt
2007-09-28 20:32 ` Maciej Sobczak
2007-09-28 22:35 ` Randy Brukardt
2007-09-29 23:58 ` Robert A Duff
2007-09-26 12:26 ` Robert A Duff
2007-09-26 21:50 ` Maciej Sobczak
2007-09-26 22:20 ` Ray Blaak
2007-09-27 0:01 ` Randy Brukardt
2007-09-27 13:39 ` Robert A Duff
2007-09-27 14:54 ` Dmitry A. Kazakov
2007-09-28 0:35 ` Randy Brukardt
[not found] ` <7p6gc1s9imfa$.kmvwf5zyf8e9.dlg@40tude.net>
2007-09-28 22:53 ` Randy Brukardt
2007-09-29 20:37 ` Dmitry A. Kazakov
2007-09-27 21:23 ` Maciej Sobczak
2007-09-28 19:12 ` Robert A Duff
2007-09-28 19:02 ` Robert A Duff
2007-09-28 19:42 ` Robert A Duff
2007-09-28 20:44 ` Maciej Sobczak
2007-09-28 22:40 ` Randy Brukardt
2007-09-29 20:35 ` Dmitry A. Kazakov
2007-09-29 20:52 ` Maciej Sobczak
2007-09-30 8:38 ` Dmitry A. Kazakov
2007-09-29 23:47 ` Robert A Duff
2007-09-29 20:48 ` Maciej Sobczak
2007-09-29 23:39 ` Robert A Duff
2007-09-30 8:38 ` Dmitry A. Kazakov
2007-09-29 23:42 ` Robert A Duff
2007-09-25 1:59 ` Randy Brukardt
2007-09-25 8:59 ` Dmitry A. Kazakov
2007-09-25 21:02 ` Randy Brukardt
2007-09-26 12:42 ` Dmitry A. Kazakov
2007-09-18 4:03 ` Steve
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