From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Luc Teirlinck Newsgroups: gmane.emacs.devel Subject: Bug in buffer-local-value Date: Thu, 26 May 2005 22:13:18 -0500 (CDT) Message-ID: <200505270313.j4R3DIQ05157@raven.dms.auburn.edu> NNTP-Posting-Host: main.gmane.org X-Trace: sea.gmane.org 1117163605 29658 80.91.229.2 (27 May 2005 03:13:25 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 27 May 2005 03:13:25 +0000 (UTC) Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri May 27 05:13:22 2005 Return-path: Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1DbVHZ-0002vs-IL for ged-emacs-devel@m.gmane.org; Fri, 27 May 2005 05:13:09 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1DbVLb-0000V5-Tq for ged-emacs-devel@m.gmane.org; Thu, 26 May 2005 23:17:20 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1DbVKz-0000T4-7P for emacs-devel@gnu.org; Thu, 26 May 2005 23:16:41 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1DbVKx-0000Rs-Be for emacs-devel@gnu.org; Thu, 26 May 2005 23:16:39 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1DbVKx-0000Ri-3J for emacs-devel@gnu.org; Thu, 26 May 2005 23:16:39 -0400 Original-Received: from [131.204.53.104] (helo=manatee.dms.auburn.edu) by monty-python.gnu.org with esmtp (Exim 4.34) id 1DbVIq-0005gO-Nr for emacs-devel@gnu.org; Thu, 26 May 2005 23:14:28 -0400 Original-Received: from raven.dms.auburn.edu (raven.dms.auburn.edu [131.204.53.29]) by manatee.dms.auburn.edu (8.12.10/8.12.10) with ESMTP id j4R3DeCK012357 for ; Thu, 26 May 2005 22:13:40 -0500 (CDT) Original-Received: (from teirllm@localhost) by raven.dms.auburn.edu (8.11.7p1+Sun/8.11.7) id j4R3DIQ05157; Thu, 26 May 2005 22:13:18 -0500 (CDT) X-Authentication-Warning: raven.dms.auburn.edu: teirllm set sender to teirllm@dms.auburn.edu using -f Original-To: emacs-devel@gnu.org X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:37748 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:37748 There is a bug in buffer-local-value, when used in connection with defvaralias. I believe that the ielm run below is self-explanatory. The bug affects `C-h v" in a very confusing way. I am insufficiently familiar with the involved C code to fix this myself. *** Welcome to IELM *** Type (describe-mode) for help. ELISP> (defvar aa 1) aa ELISP> (make-variable-buffer-local 'aa) aa ELISP> (defvaralias 'bb 'aa) aa ELISP> (setq bb 2) 2 ELISP> bb 2 ELISP> aa 2 ELISP> (buffer-local-value 'bb (current-buffer)) 1 ;; Bug: should be 2 ELISP> (buffer-local-value 'aa (current-buffer)) 2 ELISP> (local-variable-p 'bb) t