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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org>
Subject: Re: task model
Date: Sat, 17 Oct 2009 10:34:12 -0700
Date: 2009-10-17T10:34:12-07:00	[thread overview]
Message-ID: <hbcugm$nv8$1@news.tornevall.net> (raw)
In-Reply-To: <m2hbty8eer.fsf@hal.futureapps.de>

Georg Bauhaus wrote:
>>
>> What's the point of re-raising? Exceptions don't propagate from tasks.
> 
> Uhm, I forgot to mention that a handler at some nesting level
> might be reporting, permitting more accurate diagnostic messages.
> It could then decide there is or is not a possible rescue,
> and accordingly re-raise, for example.

Not an exception handler for the task, then, but for a declare statement within 
the task. In that case, a re-raise might be useful.

However, the primary use I have had for such a structure is to enclose an accept 
statement, allowing an explicitly raised exception to propagate from the accept 
to the caller, while being handled and ignored in the called task.

-- 
Jeff Carter
"You've got the brain of a four-year-old boy,
and I bet he was glad to get rid of it."
Horse Feathers
47



  parent reply	other threads:[~2009-10-17 17:34 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-15 17:43 task model Mike
2009-10-15 18:00 ` Ludovic Brenta
2009-10-15 19:15   ` Anh Vo
2009-10-15 19:54     ` Dmitry A. Kazakov
2009-10-15 20:15       ` Jeffrey R. Carter
2009-10-16 14:06       ` Georg Bauhaus
2009-10-16 14:57         ` Brad Moore
2009-10-16 20:06         ` Jeffrey R. Carter
2009-10-17 11:10           ` Georg Bauhaus
2009-10-17 12:18             ` Dmitry A. Kazakov
2009-10-17 17:34             ` Jeffrey R. Carter [this message]
2009-10-19  7:56         ` Jean-Pierre Rosen
2009-10-15 19:55     ` sjw
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