From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#23933: 25.1.50; Run a buffer-local hook with mapc Date: Sun, 10 Jul 2016 13:02:42 -0400 Message-ID: References: <83d1mlft8v.fsf@gnu.org> <831t31fpve.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1468170225 25879 80.91.229.3 (10 Jul 2016 17:03:45 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 10 Jul 2016 17:03:45 +0000 (UTC) Cc: kifer@cs.stonybrook.edu, tino.calancha@gmail.com, 23933@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jul 10 19:03:22 2016 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 1bMI8S-0002si-J5 for geb-bug-gnu-emacs@m.gmane.org; Sun, 10 Jul 2016 19:03:16 +0200 Original-Received: from localhost ([::1]:55980 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMI8R-0006AO-Pc for geb-bug-gnu-emacs@m.gmane.org; Sun, 10 Jul 2016 13:03:15 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35358) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMI8K-0006A2-1r for bug-gnu-emacs@gnu.org; Sun, 10 Jul 2016 13:03:08 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bMI8F-0000yj-9z for bug-gnu-emacs@gnu.org; Sun, 10 Jul 2016 13:03:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:33114) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMI8F-0000yf-7O for bug-gnu-emacs@gnu.org; Sun, 10 Jul 2016 13:03:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1bMI8F-0000IS-1z for bug-gnu-emacs@gnu.org; Sun, 10 Jul 2016 13:03:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 10 Jul 2016 17:03:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 23933 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 23933-submit@debbugs.gnu.org id=B23933.14681701701112 (code B ref 23933); Sun, 10 Jul 2016 17:03:03 +0000 Original-Received: (at 23933) by debbugs.gnu.org; 10 Jul 2016 17:02:50 +0000 Original-Received: from localhost ([127.0.0.1]:45450 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bMI82-0000Hs-2P for submit@debbugs.gnu.org; Sun, 10 Jul 2016 13:02:50 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.181]:6881) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bMI80-0000Hg-CB for 23933@debbugs.gnu.org; Sun, 10 Jul 2016 13:02:48 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0BCFgA731xV/3mcpUVcgxCEAoVVwD6CTQQCAoE8PRABAQEBAQEBgQpBBYNdAQEDAVYjEAs0EhQYDSSINwjPIwEBAQEBAQQBAQEBHos6hQUHhC0Fsz+BRSOEFCKCeAEBAQ X-IPAS-Result: A0BCFgA731xV/3mcpUVcgxCEAoVVwD6CTQQCAoE8PRABAQEBAQEBgQpBBYNdAQEDAVYjEAs0EhQYDSSINwjPIwEBAQEBAQQBAQEBHos6hQUHhC0Fsz+BRSOEFCKCeAEBAQ X-IronPort-AV: E=Sophos;i="5.13,465,1427774400"; d="scan'208";a="247279762" Original-Received: from 69-165-156-121.dsl.teksavvy.com (HELO pastel.home) ([69.165.156.121]) by ironport2-out.teksavvy.com with ESMTP; 10 Jul 2016 13:02:42 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id C927B64151; Sun, 10 Jul 2016 13:02:42 -0400 (EDT) In-Reply-To: <831t31fpve.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 10 Jul 2016 18:56:53 +0300") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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" Xref: news.gmane.org gmane.emacs.bugs:120782 Archived-At: >> A hook is a symbol whose symbol-value slot holds a list of functions; >> this happens to match a dynamically-bound variable, but not >> a lexically-bound variable. > Maybe I misunderstand this, but are you saying a hook (and run-hooks) > cannot be used in a file that uses lexical-binding? If so, we had > better documented that. No, the issue is simply that `run-hooks' takes a symbol as argument. You can do (run-hooks ') because (symbol-value ') works, but you can't do (run-hooks ') because (symbol-value ') won't work. Using `run-hooks' on a let-bound variable is just a bad idea (just like mixing let-binding and buffer-local binding on the same variable is asking for trouble). Stefan