From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Jorgen =?UTF-8?Q?Sch=C3=A4fer?= Newsgroups: gmane.emacs.bugs Subject: bug#20139: 25.0.50; eval-buffer ignores lexical-binding Date: Thu, 19 Mar 2015 08:33:52 +0100 Message-ID: References: <87d2466jr3.fsf@loki.jorgenschaefer.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1426750468 17646 80.91.229.3 (19 Mar 2015 07:34:28 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 19 Mar 2015 07:34:28 +0000 (UTC) Cc: 20139@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Mar 19 08:34:14 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 1YYUy3-0007Kt-NA for geb-bug-gnu-emacs@m.gmane.org; Thu, 19 Mar 2015 08:34:11 +0100 Original-Received: from localhost ([::1]:37509 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYUy2-0001ee-OC for geb-bug-gnu-emacs@m.gmane.org; Thu, 19 Mar 2015 03:34:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:35957) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYUxy-0001eU-4G for bug-gnu-emacs@gnu.org; Thu, 19 Mar 2015 03:34:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YYUxu-0000pM-4Z for bug-gnu-emacs@gnu.org; Thu, 19 Mar 2015 03:34:06 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:53824) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYUxu-0000pC-19 for bug-gnu-emacs@gnu.org; Thu, 19 Mar 2015 03:34:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1YYUxt-0003NW-PI for bug-gnu-emacs@gnu.org; Thu, 19 Mar 2015 03:34:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Jorgen =?UTF-8?Q?Sch=C3=A4fer?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 19 Mar 2015 07:34:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 20139 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 20139-submit@debbugs.gnu.org id=B20139.142675043712976 (code B ref 20139); Thu, 19 Mar 2015 07:34:01 +0000 Original-Received: (at 20139) by debbugs.gnu.org; 19 Mar 2015 07:33:57 +0000 Original-Received: from localhost ([127.0.0.1]:52392 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YYUxo-0003ND-Lu for submit@debbugs.gnu.org; Thu, 19 Mar 2015 03:33:56 -0400 Original-Received: from loki.jorgenschaefer.de ([87.230.15.51]:36686) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YYUxm-0003N4-LA for 20139@debbugs.gnu.org; Thu, 19 Mar 2015 03:33:55 -0400 Original-Received: from mail-we0-f176.google.com (mail-we0-f176.google.com [74.125.82.176]) by loki.jorgenschaefer.de (Postfix) with ESMTPSA id 2DEB0202043 for <20139@debbugs.gnu.org>; Thu, 19 Mar 2015 08:33:53 +0100 (CET) Original-Received: by weop45 with SMTP id p45so50189591weo.0 for <20139@debbugs.gnu.org>; Thu, 19 Mar 2015 00:33:52 -0700 (PDT) X-Received: by 10.180.79.232 with SMTP id m8mr13849595wix.81.1426750432910; Thu, 19 Mar 2015 00:33:52 -0700 (PDT) Original-Received: by 10.27.83.82 with HTTP; Thu, 19 Mar 2015 00:33:52 -0700 (PDT) In-Reply-To: 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:100652 Archived-At: On Thu, Mar 19, 2015 at 4:10 AM, Stefan Monnier wrote: >> (setq lexical-binding t) >> (message "%s" (lambda () a)) > > This is wrong. The `setq' above is an expression evaluated at run-time, > whereas what you want to say (that this code is written in the lexical > version of the Elisp language) is something that needs to be known before > evaluation proceeds. I am sorry for the confusion; I added the `setq' form so it is easier to C-x C-e it. The bug I describe happens in a buffer with `lexical-binding' set, no matter which way it is set. I.e. the following snippet will message (lambda nil t) and then (closure (t) nil t): (with-temp-buffer (setq lexical-binding t) (insert "(message \"%S\" (lambda () t))") (eval-buffer) (eval-region (point-min) (point-max))) Regards, Jorgen