From: Stefan Lucks <lucks@th.informatik.uni-mannheim.de>
Subject: Re: contracted exceptions
Date: Fri, 8 Jun 2007 17:56:36 +0200
Date: 2007-06-08T17:56:36+02:00 [thread overview]
Message-ID: <Pine.LNX.4.64.0706081752330.21619@th.informatik.uni-mannheim.de> (raw)
In-Reply-To: <wccwsye7iky.fsf@shell01.TheWorld.com>
On Fri, 8 Jun 2007, Robert A Duff wrote:
> Ray Blaak <rAYblaaK@STRIPCAPStelus.net> writes:
>
>> The Java experience shows that compiler checked exception specifications don't
>> work.
>
>> A typical naive programmer, forced by the compiler to handle an exception,
>> overwhelmingly seems to do:
> ...
>> or even worse:
>>
>> try
>> {
>> doSomething();
>> }
>> catch (SomeError e)
>> {
>> }
>
> Well, this part of the problem can't be blamed on the language.
> This code is just plain bad practise. The solution is better
> training for programmers, not better language design:
> You should almost never silently swallow an exception
> like that, and if you do, you should always have a comment
> explaining why.
Unfortunately, this is what Ada tasks implicitely do.
If a task fails to handle an exception raised somewhere inside, the task
silently dies -- without notifying anyone. Enforcing the subprograms used
by the task to precisely specify "this subprogram might raise these
exceptions and none else" would help a lot ...
--
Stefan Lucks (moved to Bauhaus-University Weimar, Germany)
------ I love the taste of Cryptanalysis in the morning! ------
next prev parent reply other threads:[~2007-06-08 15:56 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-06 21:33 Reconsidering assignment Maciej Sobczak
2007-06-06 22:52 ` Ray Blaak
2007-06-07 7:15 ` Maciej Sobczak
2007-06-07 16:34 ` Ray Blaak
2007-06-07 7:10 ` Stefan Lucks
2007-06-07 7:32 ` Maciej Sobczak
2007-06-07 11:11 ` Stefan Lucks
2007-06-07 16:28 ` Ray Blaak
2007-06-07 9:27 ` Dmitry A. Kazakov
2007-06-07 16:54 ` contracted exceptions (was Re: Reconsidering assignment) Ray Blaak
2007-06-07 20:04 ` contracted exceptions Robert A Duff
2007-06-07 21:11 ` Ray Blaak
2007-06-07 23:44 ` Robert A Duff
2007-06-08 2:19 ` Randy Brukardt
2007-06-08 7:39 ` Dmitry A. Kazakov
2007-06-08 8:53 ` Ray Blaak
2007-06-08 12:08 ` Dmitry A. Kazakov
2007-06-08 17:31 ` Ray Blaak
2007-06-08 18:00 ` Dmitry A. Kazakov
2007-06-08 18:20 ` Georg Bauhaus
2007-06-08 18:56 ` Dmitry A. Kazakov
2007-06-08 19:15 ` Simon Wright
2007-06-09 0:14 ` Randy Brukardt
2007-06-09 2:44 ` Larry Kilgallen
2007-06-09 8:21 ` Dmitry A. Kazakov
2007-06-09 12:32 ` Simon Wright
2007-06-09 18:38 ` Dmitry A. Kazakov
2007-06-09 21:04 ` Simon Wright
2007-06-10 9:21 ` Dmitry A. Kazakov
2007-06-10 11:49 ` Simon Wright
2007-06-10 15:20 ` Dmitry A. Kazakov
2007-06-11 4:13 ` Ray Blaak
2007-06-11 7:58 ` Dmitry A. Kazakov
2007-06-11 17:06 ` Ray Blaak
2007-06-11 19:57 ` Dmitry A. Kazakov
2007-06-10 18:14 ` Georg Bauhaus
2007-06-10 18:12 ` Georg Bauhaus
2007-06-11 7:55 ` Dmitry A. Kazakov
2007-06-11 14:15 ` Bob Spooner
2007-06-11 15:14 ` Georg Bauhaus
2007-06-11 15:20 ` (see below)
2007-06-11 16:39 ` Georg Bauhaus
2007-06-11 19:50 ` Simon Wright
2007-06-08 11:26 ` Martin Krischik
2007-06-08 12:02 ` Robert A Duff
2007-06-08 11:22 ` contracted exceptions (was Re: Reconsidering assignment) Martin Krischik
2007-06-08 17:44 ` Ray Blaak
2007-06-08 12:10 ` contracted exceptions Robert A Duff
2007-06-08 15:56 ` Stefan Lucks [this message]
2007-06-08 20:27 ` Pascal Obry
2007-06-09 0:19 ` Randy Brukardt
2007-06-09 18:04 ` Robert A Duff
2007-06-09 18:37 ` Dmitry A. Kazakov
2007-06-09 20:43 ` Robert A Duff
2007-06-10 9:21 ` Dmitry A. Kazakov
2007-06-11 19:18 ` Randy Brukardt
2007-06-12 6:55 ` Jean-Pierre Rosen
2007-06-08 17:40 ` Ray Blaak
2007-06-09 18:14 ` Robert A Duff
2007-06-08 19:18 ` Simon Wright
2007-06-09 22:37 ` Reconsidering assignment Maciej Sobczak
2007-06-10 9:21 ` Dmitry A. Kazakov
2007-06-11 9:04 ` Maciej Sobczak
2007-06-11 13:09 ` Dmitry A. Kazakov
2007-06-11 18:57 ` Randy Brukardt
2007-06-11 21:12 ` Maciej Sobczak
2007-06-12 8:31 ` Dmitry A. Kazakov
2007-06-12 9:31 ` Georg Bauhaus
2007-06-12 10:03 ` Dmitry A. Kazakov
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox