From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#48219: 27.1.90; CL-LOOP facility fails with hash tables Date: Fri, 01 Jul 2022 14:03:21 +0200 Message-ID: <87mtdt59bq.fsf@gnus.org> References: <86eeemnawu.fsf@csic.es> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="12217"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Stefan Monnier , 48219@debbugs.gnu.org To: Juan =?UTF-8?Q?Jos=C3=A9_?= =?UTF-8?Q?Garc=C3=ADa?= Ripoll Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jul 01 14:04:14 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1o7FNc-0002sm-HN for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 01 Jul 2022 14:04:12 +0200 Original-Received: from localhost ([::1]:38608 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o7FNa-0005n3-Si for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 01 Jul 2022 08:04:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:37328) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o7FNS-0005mf-Mu for bug-gnu-emacs@gnu.org; Fri, 01 Jul 2022 08:04:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:42607) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1o7FNS-0001HY-Dq for bug-gnu-emacs@gnu.org; Fri, 01 Jul 2022 08:04:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1o7FNS-0001hK-6l for bug-gnu-emacs@gnu.org; Fri, 01 Jul 2022 08:04:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 01 Jul 2022 12:04:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 48219 X-GNU-PR-Package: emacs Original-Received: via spool by 48219-submit@debbugs.gnu.org id=B48219.16566770196492 (code B ref 48219); Fri, 01 Jul 2022 12:04:02 +0000 Original-Received: (at 48219) by debbugs.gnu.org; 1 Jul 2022 12:03:39 +0000 Original-Received: from localhost ([127.0.0.1]:36504 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1o7FN4-0001ge-PX for submit@debbugs.gnu.org; Fri, 01 Jul 2022 08:03:39 -0400 Original-Received: from quimby.gnus.org ([95.216.78.240]:54246) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1o7FMz-0001gL-FZ for 48219@debbugs.gnu.org; Fri, 01 Jul 2022 08:03:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID :Date:References:In-Reply-To:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=KGSxlspgW0CvGS9nUEV8jxzkfNgeVoQNs6xFiRShjl4=; b=QlhGfFa0Gn1VGfetWrZtYUcBwB X2scW3fjt+tB42GupB0feE2Bx2QzDiLknTrLpV01Br5Ahbvfk3+4+iPxEGLPybfA3O/n8ECzhhUhz V60iCUwFdZL7zqkavqO2GZnlo9QJjI5AL7DYkUmdOU5DWSwBuYr9HAA/tgRvCfm/Jb0o=; Original-Received: from [84.212.220.105] (helo=joga) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1o7FMo-0006ni-MA; Fri, 01 Jul 2022 14:03:25 +0200 In-Reply-To: <86eeemnawu.fsf@csic.es> ("Juan =?UTF-8?Q?Jos=C3=A9_?= =?UTF-8?Q?Garc=C3=ADa?= Ripoll"'s message of "Tue, 04 May 2021 10:46:57 +0200") X-Now-Playing: Moby's _Reprise: Remixes_: "We Are All Made Of Stars (Moby's Ac@N Remix)" X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:235792 Archived-At: Juan Jos=C3=A9 Garc=C3=ADa Ripoll writes: > (cl-loop > for database in nil > for aux =3D (message "databse: %S" database) > for entry being the hash-values of database > do (message "FOO %S" database)) > > This code should do nothing, because variable DATABASE runs over an empty= list. Yet the macroexpansion of the loop produces code that tries to run o= ver the entries of DATABASE, which is NIL. > > (cl--block-wrapper > (catch '--cl-block-nil-- > (let* ((--cl-var-- nil) > (database nil) > (aux nil)) > (cl-block --cl-finish-- > (maphash (lambda (--cl-var-- entry) > (or (consp --cl-var--) (cl-return-from --cl-finish-- nil)) > (setq database (car --cl-var--)) > (setq aux (message "databse: %S" database)) > (message "FOO %S" database) > (setq --cl-var-- (cdr --cl-var--))) > database)) > nil))) (I'm going through old bug reports that unfortunately weren't resolved at the time.) Yes, that does seem wrong. I had a brief look at cl--parse-loop-clause, but this is code I haven't looked at before, and I'm not sure I understand the control flow here. Adding Stefan to the CCs; I'm sure he can tell what should be done immediately. =F0=9F=98=80 --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no