From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Odd backtrace in condition-case Date: Tue, 21 May 2019 17:51:02 -0400 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="240447"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue May 21 23:51:26 2019 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hTCfL-0010PN-CW for ged-emacs-devel@m.gmane.org; Tue, 21 May 2019 23:51:23 +0200 Original-Received: from localhost ([127.0.0.1]:59959 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hTCfK-0006wc-CU for ged-emacs-devel@m.gmane.org; Tue, 21 May 2019 17:51:22 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:46401) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hTCfC-0006wU-0T for emacs-devel@gnu.org; Tue, 21 May 2019 17:51:14 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hTCfB-0002mG-6D for emacs-devel@gnu.org; Tue, 21 May 2019 17:51:13 -0400 Original-Received: from [195.159.176.226] (port=59364 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hTCfA-0002lV-Vh for emacs-devel@gnu.org; Tue, 21 May 2019 17:51:13 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.89) (envelope-from ) id 1hTCf7-00105G-1l for emacs-devel@gnu.org; Tue, 21 May 2019 23:51:09 +0200 X-Injected-Via-Gmane: http://gmane.org/ Cancel-Lock: sha1:GvkkRHLMKOaE0vKnYi5FqpSxZFg= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 195.159.176.226 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:236870 Archived-At: > I usually run with `debug-on-error' set, but lately I've started getting > these backtraces: > > Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil) > capitalize(nil) > timezone-make-arpa-date(2000 0 0 "01:00:00" (3600 "CET")) > timezone-make-date-arpa-standard("Session") > date-to-time("Session") > url-cookie-expired-p([url-cookie "NRK-Experiment-Bucket" "0" "Session" "/" "www.nrk.no" nil]) FWIW, I think it was useful for Emacs to show this backtrace (hence validating the use of condition-case-unless-debug there ;-) because it makes no sense for (date-to-time "Session") to signal the error `(wrong-type-argument char-or-string-p nil)` IOW, the above backtrace indicates a bug somewhere within date-to-time, which should signal *another* error. Stefan