From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Redisplay hook Date: Mon, 04 Jul 2016 05:42:25 +0300 Message-ID: <83shvqp1im.fsf@gnu.org> References: <577814F4.8060500@gmail.com> <8360sns8nj.fsf@gnu.org> <5779A957.3010604@gmail.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1467600192 14057 80.91.229.3 (4 Jul 2016 02:43:12 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 4 Jul 2016 02:43:12 +0000 (UTC) Cc: rms@gnu.org, emacs-devel@gnu.org To: =?utf-8?Q?Cl=C3=A9ment?= Pit--Claudel Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Jul 04 04:43:07 2016 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bJtql-0005of-8a for ged-emacs-devel@m.gmane.org; Mon, 04 Jul 2016 04:43:07 +0200 Original-Received: from localhost ([::1]:44901 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bJtqh-0006hc-5K for ged-emacs-devel@m.gmane.org; Sun, 03 Jul 2016 22:43:03 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:47981) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bJtqa-0006hJ-HU for emacs-devel@gnu.org; Sun, 03 Jul 2016 22:42:57 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bJtqV-0005QF-HU for emacs-devel@gnu.org; Sun, 03 Jul 2016 22:42:56 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:45956) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bJtqV-0005QB-E5; Sun, 03 Jul 2016 22:42:51 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1313 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.82) (envelope-from ) id 1bJtqM-0003sJ-R6; Sun, 03 Jul 2016 22:42:43 -0400 In-reply-to: <5779A957.3010604@gmail.com> (message from =?utf-8?Q?Cl=C3=A9?= =?utf-8?Q?ment?= Pit--Claudel on Sun, 3 Jul 2016 20:09:59 -0400) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:205127 Archived-At: > Cc: emacs-devel@gnu.org > From: Clément Pit--Claudel > Date: Sun, 3 Jul 2016 20:09:59 -0400 > > > It is asking for trouble, since if there is any bug in it or confusing > > behavior, you will get totally screwed. > > Much more than with a pre- or post-command-hook? Yes, because those ones run outside of redisplay. > We could have the same logic for errors: > > If an unhandled error happens in running this hook, > the function in which the error occurred is unconditionally removed, since > otherwise the error might happen repeatedly and make Emacs nonfunctional. If we go this way, that's probably a good thing to do.