From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stephen Gildea Newsgroups: gmane.emacs.devel Subject: Re: (declare (debug 0)) Date: Tue, 19 Oct 2021 22:22:08 -0700 Message-ID: <54799.1634707328@pental> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="16276"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Oct 20 07:23:01 2021 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 1md445-00044H-KX for ged-emacs-devel@m.gmane-mx.org; Wed, 20 Oct 2021 07:23:01 +0200 Original-Received: from localhost ([::1]:39606 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1md444-0003r2-Ez for ged-emacs-devel@m.gmane-mx.org; Wed, 20 Oct 2021 01:23:00 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36514) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1md43R-000399-8W for emacs-devel@gnu.org; Wed, 20 Oct 2021 01:22:21 -0400 Original-Received: from tigger.sg.gildea.net ([99.65.78.170]:51336 helo=pental.sg.gildea.net) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1md43P-0001w2-At for emacs-devel@gnu.org; Wed, 20 Oct 2021 01:22:20 -0400 Original-Received: from pental (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by pental.sg.gildea.net (Postfix) with ESMTPS id 11CB32667D7; Tue, 19 Oct 2021 22:22:08 -0700 (PDT) In-Reply-To: Message from monnier@iro.umontreal.ca of 19 Oct 2021 08:29:25 -0400 X-Mailer: MH-E 8.6+git; nmh 1.7.1; GNU Emacs 27.2.50 Content-ID: <54798.1634707328.1@pental> Received-SPF: pass client-ip=99.65.78.170; envelope-from=stepheng+emacs@gildea.com; helo=pental.sg.gildea.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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" Xref: news.gmane.io gmane.emacs.devel:277419 Archived-At: Stefan Monnier wrote: > I must say I [had] no idea that 0 was supposed to be treated specially. > > I would have written (&rest sexp) instead, tho more likely I would have > written nothing at all and relies on the default behavior of Edebug.... If even you didn't know about (debug 0), it sounds like I should update the manual to recommend (debug nil) instead. I do like the idea of offering (continuing to offer) a simple shorthand that says "do not instrument args", even though that is the default and is rarely used in current code. Adding an explicit declaration saves later readers/maintainers of a macro definition from having to figure out whether a "debug" declaration is missing.