From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Le Wang Newsgroups: gmane.emacs.bugs Subject: bug#9469: buffer-local variables seem to remember previous values Date: Sun, 11 Sep 2011 01:07:21 +0800 Message-ID: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: dough.gmane.org 1315674480 3500 80.91.229.12 (10 Sep 2011 17:08:00 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sat, 10 Sep 2011 17:08:00 +0000 (UTC) To: 9469@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Sep 10 19:07:56 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1R2R24-0001AE-4d for geb-bug-gnu-emacs@m.gmane.org; Sat, 10 Sep 2011 19:07:56 +0200 Original-Received: from localhost ([::1]:52456 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R2R23-0008Sd-Fm for geb-bug-gnu-emacs@m.gmane.org; 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Sat, 10 Sep 2011 10:07:21 -0700 (PDT) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Sat, 10 Sep 2011 13:12:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) 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:50783 Archived-At: I've reproed in both Emacs 23.3 and bzr build from a few days ago both on windows. Steps: 1. emacs -Q 2. eval this region: (setq buf-a (create-file-buffer "a")) (setq foo nil) (make-variable-buffer-local 'foo) (defun test1 () (interactive) (let (alist) (push '(:var . 0) alist) (with-current-buffer buf-a (setq foo alist)))) (defun test2 () (interactive) (with-current-buffer buf-a (setcdr (assq :var foo) 20))) (defun show () (interactive) (with-current-buffer buf-a (format " ; foo in 'a' is %s" foo))) (defun test3 () (interactive) (let (alist) (push `(:var . ,(+ 0)) alist) (with-current-buffer buf-a (setq foo alist)))) (test1) (test2) (test1) (insert (show)) (test3) (insert (show)) Note results on both `insert' lines should be identical but the first insert some how remembers a previous value. I find it surprising that no one has ever come across this before. -- Le