From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Trey Jackson Newsgroups: gmane.emacs.bugs Subject: bug#10604: 23.2; variable lookup: make-local-variable interaction with with-temp-buffer Date: Wed, 25 Jan 2012 13:15:29 -0800 Message-ID: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: dough.gmane.org 1327528667 9025 80.91.229.12 (25 Jan 2012 21:57:47 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 25 Jan 2012 21:57:47 +0000 (UTC) To: 10604@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jan 25 22:57:43 2012 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 1RqAqc-0002JI-7S for geb-bug-gnu-emacs@m.gmane.org; Wed, 25 Jan 2012 22:57:42 +0100 Original-Received: from localhost ([::1]:35520 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RqAqb-0006gw-SB for geb-bug-gnu-emacs@m.gmane.org; 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Wed, 25 Jan 2012 13:15:29 -0800 X-Authentication-Warning: quartzville.wv.mentorg.com: tjackson set sender to tjackson@quartzville.i-did-not-set--mail-host-address--so-tickle-me using -f X-detected-operating-system: by eggs.gnu.org: Solaris 10 (beta) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Mailman-Approved-At: Wed, 25 Jan 2012 16:51:33 -0500 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 140.186.70.43 X-Mailman-Approved-At: Wed, 25 Jan 2012 16:57:39 -0500 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:56008 Archived-At: Switch to *scratch*, and do the following: (defun func (my-var) (with-temp-buffer (message my-var))) C-j (func "z") C-j ; no problem, works as expected (make-local-variable 'my-var) C-j (func "z") C-j ; ERROR with the stack trace Debugger entered--Lisp error: (void-variable my-var) (message my-var) (progn (message my-var)) (unwind-protect (progn (message my-var)) (and (buffer-name temp-buffer) (kill-buffer temp-buffer))) (save-current-buffer (set-buffer temp-buffer) (unwind-protect (progn ...) (and ... ...))) (with-current-buffer temp-buffer (unwind-protect (progn ...) (and ... ...))) (let ((temp-buffer ...)) (with-current-buffer temp-buffer (unwind-protect ... ...))) (with-temp-buffer (message my-var)) func("z") eval((func "z")) eval-last-sexp-1(t) eval-last-sexp(t) eval-print-last-sexp() call-interactively(eval-print-last-sexp nil nil) First discovered by a SO post: http://stackoverflow.com/questions/9008359/why-does-code-in-with-temp-buffer-complain-about-void-variable-when-parent-buf In GNU Emacs 23.2.1 (x86_64-unknown-linux-gnu, X toolkit, Xaw3d scroll bars) of 2010-05-11 on quartzville Windowing system distributor `The X.Org Foundation', version 11.0.60801000 Important settings: value of $LC_ALL: nil value of $LC_COLLATE: nil value of $LC_CTYPE: nil value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: nil value of $LC_TIME: nil value of $LANG: C value of $XMODIFIERS: nil locale-coding-system: nil default enable-multibyte-characters: t Major mode: Debugger Minor modes in effect: tooltip-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: C-x b C-y C-p C-e C-j ( f u n c SPC " c z " ) C-j ( m a k e - l o c a l - v a r M-/ i a b l e SPC ' m y - v a r ) C-j ( f u n c SPC " z " ) C-j M-x r e p o r t SPC e m a c s SPC Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Mark set z Scanning for dabbrevs...99% dabbrev-expand: No dynamic expansion for `make-local-var' found Entering debugger... Load-path shadows: None found. Features: (shadow sort mail-extr message sendmail regexp-opt ecomplete rfc822 mml mml-sec password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock sha1 hex-util hashcash mail-utils emacsbug help-mode easymenu view debug dabbrev tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd font-setting tool-bar dnd fontset image fringe lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mldrag mouse jit-lock font-lock syntax facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev loaddefs button minibuffer faces cus-face files text-properties overlay md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process font-render-setting x-toolkit x multi-tty emacs) -- Trey Jackson trey_jackson@mentor.com