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From: Kelly Dean <kelly@prtime.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: bruce.connor.am@gmail.com, emacs-devel@gnu.org
Subject: Re: Short patch for review
Date: Thu, 19 Feb 2015 10:30:36 +0000	[thread overview]
Message-ID: <HZ1gPSC3JjNQSK1WHVd91j9Q2BpIZRHxTqwbqqGo8wA@local> (raw)
In-Reply-To: <83r3tm4fia.fsf@gnu.org>

Eli Zaretskii wrote:
> Do we have guidelines for which errors should be 'user-error'?

If the program is at fault, use error. If the user is at fault, use user-error.

If debug-on-error is t, and the program is at fault, then pop up the debugger in order to help find the problem in the program. If the user is at fault, then don't pop up the debugger, even if debug-on-error is t, because there's no problem in the program.

And those guidelines match, because Emacs pops up the debugger if debug-on-error is t and an error is signaled, but not if user-error is signaled.

In the case of this patch, the errors are clearly user errors, not program errors.



  reply	other threads:[~2015-02-19 10:30 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-18 21:17 Short patch for review Artur Malabarba
2015-02-18 22:51 ` Stefan Monnier
2015-02-19  5:49 ` Eli Zaretskii
2015-02-19 10:30   ` Kelly Dean [this message]
2015-02-19 11:07   ` Artur Malabarba
2015-02-19 11:18     ` Eli Zaretskii
2015-02-19 13:44   ` Stefan Monnier

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