From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Attaching context info to an error Date: Tue, 26 Dec 2023 15:12:28 -0500 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31574"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: emacs-devel@gnu.org To: =?windows-1252?B?Sm/jbyBU4XZvcmE=?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Dec 26 21:13:37 2023 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rIDo0-00083S-Vj for ged-emacs-devel@m.gmane-mx.org; Tue, 26 Dec 2023 21:13:37 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rIDn7-0005Xa-Vt; Tue, 26 Dec 2023 15:12:42 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rIDn6-0005XE-2K for emacs-devel@gnu.org; Tue, 26 Dec 2023 15:12:40 -0500 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rIDn4-0006YC-Bl for emacs-devel@gnu.org; Tue, 26 Dec 2023 15:12:39 -0500 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 16F0910012E; Tue, 26 Dec 2023 15:12:36 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1703621550; bh=iBuWd1RlqxvSyLPfRqopiEE5sazY8InRkNtxRqrnlFs=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=KQe3QF+gyrbWb45OHxVfgMNmDXNu2lvafXGRVCeH5MvqMT+jEVccwLfHQRi3n70l+ uNeSk0TKk/YfvAPpDIHg5JhtoIXVKsf1k6F2+8GLpvdwZb+PNUkTtjQkOaBffe5lOe o/UeXfcnNOiLzs9ZZEa5sjRvf+hqE9AuJzovEc5A+3GL4MlqGTVQlHSSKWBqVuCMgw ZpoYQAbzRVJP0vSiGIRrAai9DzvQvH/ln+MUpw8ixbDbsDuloGg6FQuPl9jEVOULez vAZNI1xmK3Dgz6+hbYpWomybWgLRTgG+PwccoxxS0sAexMz/U68dnOVnIbU6l04ij+ poyOYrtzt8gmg== Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 9FC05100054; Tue, 26 Dec 2023 15:12:30 -0500 (EST) Original-Received: from pastel (65-110-221-238.cpe.pppoe.ca [65.110.221.238]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 7CA34121109; Tue, 26 Dec 2023 15:12:30 -0500 (EST) In-Reply-To: (=?windows-1252?Q?=22Jo=E3o_T=E1vora=22's?= message of "Sat, 23 Dec 2023 03:28:03 +0000") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:314229 Archived-At: > Just to be clear what I meant by this to those unfamiliar with > Common Lisp and interactive restarts. It means I can invoke > the restart interactively from the Common Lisp debugger that > is invoked as the last step of the non-returning error. > > 'baz' will be called again and again with different arguments > and always errors until I recompile it to something else that > doesn't error, which I can do while the debugger is active. > > I expected to be able to do the same from the Emacs Lisp > debugger-mode/backtrace-mode *Backtrace* buffer, but I never > get one such buffer. FWIW, it works for me (with an Emacs compiled from the `scratch/handler-bind` branch). when I do `C-x C-e` at the end of `(foo)`, I get into the debugger, and I do M-: (funcall (nth 2 (car pm/restarts))) RET I get back into the debugger but with a different gensymd symbol. And if I redefine `baz` to something that doesn't signal an error, M-: (funcall (nth 2 (car pm/restarts))) RET then lets me return to the toplevel. Stefan