From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Katsumi Yamaoka Newsgroups: gmane.emacs.bugs Subject: bug#19699: 25.0.50; lexical-let + mapcar cause infloop Date: Wed, 28 Jan 2015 08:55:39 +0900 Organization: Emacsen advocacy group Message-ID: References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1422402972 25535 80.91.229.3 (27 Jan 2015 23:56:12 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 27 Jan 2015 23:56:12 +0000 (UTC) To: 19699-done@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jan 28 00:56:12 2015 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1YGFzP-00065G-H6 for geb-bug-gnu-emacs@m.gmane.org; Wed, 28 Jan 2015 00:56:11 +0100 Original-Received: from localhost ([::1]:50561 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YGFzP-0005ai-31 for geb-bug-gnu-emacs@m.gmane.org; Tue, 27 Jan 2015 18:56:11 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34300) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YGFzK-0005a6-9H for bug-gnu-emacs@gnu.org; Tue, 27 Jan 2015 18:56:07 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YGFzG-0004a7-Uu for bug-gnu-emacs@gnu.org; Tue, 27 Jan 2015 18:56:06 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:39686) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YGFzG-0004Zz-SJ for bug-gnu-emacs@gnu.org; Tue, 27 Jan 2015 18:56:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1YGFzG-0006SO-Mx for bug-gnu-emacs@gnu.org; Tue, 27 Jan 2015 18:56:02 -0500 In-Reply-To: Resent-From: Katsumi Yamaoka Original-Sender: "Debbugs-submit" Resent-To: bug-gnu-emacs@gnu.org Resent-Date: Tue, 27 Jan 2015 23:56:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: cc-closed 19699 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Mail-Followup-To: 19699@debbugs.gnu.org, yamaoka@jpl.org, yamaoka@jpl.org Original-Received: via spool by 19699-done@debbugs.gnu.org id=D19699.142240294624795 (code D ref 19699); Tue, 27 Jan 2015 23:56:02 +0000 Original-Received: (at 19699-done) by debbugs.gnu.org; 27 Jan 2015 23:55:46 +0000 Original-Received: from localhost ([127.0.0.1]:58376 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YGFz0-0006Rr-9R for submit@debbugs.gnu.org; Tue, 27 Jan 2015 18:55:46 -0500 Original-Received: from memphis-mail.hostforweb.net ([216.246.47.48]:45619 helo=memphis.hostforweb.net) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YGFyx-0006Rc-2e for 19699-done@debbugs.gnu.org; Tue, 27 Jan 2015 18:55:43 -0500 Original-Received: from localhost ([127.0.0.1]:47341) by memphis.hostforweb.net with smtp (Exim 4.84) (envelope-from ) id 1YGFyq-000q7j-Qu; Tue, 27 Jan 2015 17:55:37 -0600 X-Face: #kKnN,xUnmKia.'[pp`; Omh}odZK)?7wQSl"4o04=EixTF+V[""w~iNbM9ZL+.b*_CxUmFk B#Fu[*?MZZH@IkN:!"\w%I_zt>[$nm7nQosZ<3eu; B:$Q_:p!',P.c0-_Cy[dz4oIpw0ESA^D*1Lw= L&i*6&( User-Agent: Gnus/5.130012 (=?UTF-8?Q?=E7=9C=9F?= Gnus v0.12) Emacs/25.0.50 (i686-pc-cygwin) Cancel-Lock: sha1:zjmDD5ztSJNL3ixh+VgK9oCurnM= X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - memphis.hostforweb.net X-AntiAbuse: Original Domain - debbugs.gnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - jpl.org X-Get-Message-Sender-Via: memphis.hostforweb.net: acl_c_authenticated_local_user: yamaokac X-Source: X-Source-Args: X-Source-Dir: X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:98822 Archived-At: On Tue, 27 Jan 2015 17:06:44 +0900, Katsumi Yamaoka wrote: > A Lisp form that uses `lexical-let' and `mapcar' (or `mapc'), > like this, cannot be evaluated nor byte-compiled because it > looks like causing an infinite loop[1]. Oops, this is my fault that was made as the revno <1fe087a1ab4182b2e6c1d05444461acc4e78e2d8> in cl.el. > (defun testing () > (lexical-let (var) > (mapcar #'identity '("Hello" "World")))) The cause of the infinite loop is that the macro expander tries to expand #'foo again and again. Fixed.