From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Lennart Borgman Newsgroups: gmane.emacs.bugs Subject: bug#5371: Priority of different kind of local variable bindings Date: Wed, 13 Jan 2010 19:50:11 +0100 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1263410491 1989 80.91.229.12 (13 Jan 2010 19:21:31 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 13 Jan 2010 19:21:31 +0000 (UTC) Cc: 5371@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jan 13 20:21:23 2010 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1NV8mN-0007JM-9n for geb-bug-gnu-emacs@m.gmane.org; Wed, 13 Jan 2010 20:21:19 +0100 Original-Received: from localhost ([127.0.0.1]:50671 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NV8mN-0005ux-PT for geb-bug-gnu-emacs@m.gmane.org; Wed, 13 Jan 2010 14:21:19 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NV8ke-0005Eu-KD for bug-gnu-emacs@gnu.org; Wed, 13 Jan 2010 14:19:32 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NV8ka-0005D7-E7 for bug-gnu-emacs@gnu.org; Wed, 13 Jan 2010 14:19:32 -0500 Original-Received: from [199.232.76.173] (port=58468 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NV8ka-0005Cw-8v for bug-gnu-emacs@gnu.org; Wed, 13 Jan 2010 14:19:28 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:39770) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1NV8ka-00088x-2W for bug-gnu-emacs@gnu.org; Wed, 13 Jan 2010 14:19:28 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1NV8J4-0006gx-Da; Wed, 13 Jan 2010 13:51:02 -0500 X-Loop: bug-gnu-emacs@gnu.org Resent-From: Lennart Borgman Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 13 Jan 2010 18:51:02 +0000 Resent-Message-ID: Resent-Sender: bug-gnu-emacs@gnu.org X-Emacs-PR-Message: followup 5371 X-Emacs-PR-Package: emacs X-Emacs-PR-Keywords: Original-Received: via spool by 5371-submit@debbugs.gnu.org id=B5371.126340863825699 (code B ref 5371); Wed, 13 Jan 2010 18:51:02 +0000 Original-Received: (at 5371) by debbugs.gnu.org; 13 Jan 2010 18:50:38 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1NV8Ig-0006gS-Kx for submit@debbugs.gnu.org; Wed, 13 Jan 2010 13:50:38 -0500 Original-Received: from mail-fx0-f226.google.com ([209.85.220.226]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1NV8Ie-0006gG-DN for 5371@debbugs.gnu.org; Wed, 13 Jan 2010 13:50:36 -0500 Original-Received: by fxm26 with SMTP id 26so21547805fxm.39 for <5371@debbugs.gnu.org>; Wed, 13 Jan 2010 10:50:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :from:date:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=Ua/SWY4L8h7B1WArD8NpPtfEvo/JurulbckRZ3GoV6Y=; b=CkuNx6E1zx4wM0u5pZDGH4lgcgakI1TwXhJuR9zgR6G7Bxymw3dsVfGE3hllxHnlFS H8/NeJJRuzjBje4BBXO3HsIjseYuqxcHv/uJErAkNJKa9sHkB8F2GUrMRxIGrDEkgnIr 5b9FsjNILD/AyoX+LssYdcgNn1L8j+tJ/UqRQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=j7XHIVADheQDH8FSuzpdooHBCUL+LZ+LTswGyNgiyL4Ud2/bMukn1F8a8XxXXOrL96 4eE+7rjwT17Jw6aJ32Z0qNlaJdkBWix6McMS/ywKbeU0FeV/tTRQtRda7CNI9ydaohGV YTNLW4x3hI0KirNqoNJ2ORD1BA090vUVzeyLw= Original-Received: by 10.239.189.13 with SMTP id r13mr864783hbh.92.1263408631146; Wed, 13 Jan 2010 10:50:31 -0800 (PST) In-Reply-To: X-Spam-Score: -2.9 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list X-Spam-Score: -2.9 (--) Resent-Date: Wed, 13 Jan 2010 13:51:02 -0500 X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6 (newer, 3) 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: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:34288 Archived-At: On Wed, Jan 13, 2010 at 7:45 PM, Stefan Monnier wrote: >>> What do you mean by "priority of different kind of local variables"? >> I just meant which value is active at a certain point. > > It's not based on priorities. > >> (with-temp-buffer >> =C2=A0 (set (make-local-variable 'temp-var) "buffer-2") >> =C2=A0 (temp-var-display "cc") > >> =C2=A0 (let ((temp-var "let")) >> =C2=A0 =C2=A0 (temp-var-display "dd") > >> =C2=A0 =C2=A0 (kill-local-variable 'temp-var) >> =C2=A0 =C2=A0 (temp-var-display "ff")) > > The `let' binding affects the currently "active" slot, so in this case > it affects the buffer-local slot. =C2=A0So after kill-local-variable, thi= s > binding is lost. Ok, I see. > Note that mixing let-binding and buffer-local bindings is generally > discouraged. =C2=A0The only known reasonably sane semantics for such a mi= x is > when the variable is always buffer-local. =C2=A0If you mix `let' with > make-local-variable and kill-local-variable you're really asking > for trouble. I know ;-) Is this explained somewhere (except for the code)?