From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Artur Malabarba Newsgroups: gmane.emacs.bugs Subject: bug#21201: 25.0.50; (buffer-modified-p) errors inside cl-letf Date: Thu, 6 Aug 2015 20:47:34 +0100 Message-ID: Reply-To: bruce.connor.am@gmail.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1438890508 6287 80.91.229.3 (6 Aug 2015 19:48:28 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 6 Aug 2015 19:48:28 +0000 (UTC) To: 21201@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Aug 06 21:48:12 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 1ZNR99-0008UD-Nc for geb-bug-gnu-emacs@m.gmane.org; Thu, 06 Aug 2015 21:48:11 +0200 Original-Received: from localhost ([::1]:46435 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZNR98-0006cL-Sn for geb-bug-gnu-emacs@m.gmane.org; Thu, 06 Aug 2015 15:48:10 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49049) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZNR94-0006c8-UC for bug-gnu-emacs@gnu.org; Thu, 06 Aug 2015 15:48:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZNR90-0001CN-By for bug-gnu-emacs@gnu.org; Thu, 06 Aug 2015 15:48:06 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:39976) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZNR90-0001CJ-8x for bug-gnu-emacs@gnu.org; Thu, 06 Aug 2015 15:48:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1ZNR90-0007Yd-0i for bug-gnu-emacs@gnu.org; Thu, 06 Aug 2015 15:48:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Artur Malabarba Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 06 Aug 2015 19:48:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 21201 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.143889046129026 (code B ref -1); Thu, 06 Aug 2015 19:48:01 +0000 Original-Received: (at submit) by debbugs.gnu.org; 6 Aug 2015 19:47:41 +0000 Original-Received: from localhost ([127.0.0.1]:41422 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZNR8f-0007Y6-Hx for submit@debbugs.gnu.org; Thu, 06 Aug 2015 15:47:41 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:35433) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1ZNR8d-0007Xy-99 for submit@debbugs.gnu.org; Thu, 06 Aug 2015 15:47:39 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZNR8c-00011u-34 for submit@debbugs.gnu.org; Thu, 06 Aug 2015 15:47:38 -0400 Original-Received: from lists.gnu.org ([2001:4830:134:3::11]:48940) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZNR8c-00011q-0Y for submit@debbugs.gnu.org; Thu, 06 Aug 2015 15:47:38 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48939) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZNR8b-0006bt-3M for bug-gnu-emacs@gnu.org; Thu, 06 Aug 2015 15:47:37 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZNR8a-00011c-7x for bug-gnu-emacs@gnu.org; Thu, 06 Aug 2015 15:47:37 -0400 Original-Received: from mail-la0-x230.google.com ([2a00:1450:4010:c03::230]:34149) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZNR8Z-00011W-VM for bug-gnu-emacs@gnu.org; Thu, 06 Aug 2015 15:47:36 -0400 Original-Received: by labow3 with SMTP id ow3so55825097lab.1 for ; Thu, 06 Aug 2015 12:47:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:reply-to:sender:date:message-id:subject:from:to :content-type; bh=+FdlEa6jdTicC9FNPFK/fDgxNcuNfZz+iGVCVmelEFI=; b=qtF1S2X49t+cIjJQg1IeJ0cM14YWgNOvWvTOOYrahAfSSQgBRqnkD1m3nS6+Iw8po4 aidLmvBjEWLBf1RBTsV8pLl7xzo1R8a3avt+JMQxB6RB6ufAiaKRniFv4F/ZlHFLRoXQ HNCw55vvH2/KeYB6Dvg9a29bSsM10u6o03zp4yWWINRsPP/IccG58Iu6YMZQ8ROFKe9E TODzXKeDGjvS2o8Xdym/MfWS8Gma0sZ5uvORTgPINZifezDydS7KVvlZjQWRlctUyBcE q1arR89H5sF6pogYcEgtlE/CbPuDyFmk+ZAUqr8IeKdQlH6ePLYgQa2P9Ct6ao70ht2k BBMQ== X-Received: by 10.112.210.137 with SMTP id mu9mr3938115lbc.95.1438890454101; Thu, 06 Aug 2015 12:47:34 -0700 (PDT) Original-Received: by 10.25.134.139 with HTTP; Thu, 6 Aug 2015 12:47:34 -0700 (PDT) X-Google-Sender-Auth: PQumtTqm1-PNAtdmiRWo8hUCchw X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). 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:105332 Archived-At: >From emacs -Q, run the following: (cl-letf (((buffer-modified-p))) (insert "ookok")) You'll get an error from trying to set a nil buffer. Using `(buffer-modified-p (current-buffer))' instead works. Backtrace: Debugger entered--Lisp error: (wrong-type-argument stringp nil) set-buffer(nil) (save-current-buffer (set-buffer nil) (set-buffer-modified-p old)) (unwind-protect (insert "ookok") (save-current-buffer (set-buffer nil) (set-buffer-modified-p old))) (let* ((old (buffer-modified-p))) (unwind-protect (insert "ookok") (save-current-buffer (set-buffer nil) (set-buffer-modified-p old)))) eval((let* ((old (buffer-modified-p))) (unwind-protect (insert "ookok") (save-current-buffer (set-buffer nil) (set-buffer-modified-p old)))) nil) elisp--eval-last-sexp(nil) eval-last-sexp(nil) funcall-interactively(eval-last-sexp nil) call-interactively(eval-last-sexp nil nil) command-execute(eval-last-sexp)