From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#8548: 23.3; Lisp debugger can't exit recursive edit level Date: Mon, 25 Apr 2011 12:03:27 -0300 Message-ID: References: <83wriibi1b.fsf@cs.bham.ac.uk> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1303744064 16385 80.91.229.12 (25 Apr 2011 15:07:44 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 25 Apr 2011 15:07:44 +0000 (UTC) Cc: 8548@debbugs.gnu.org To: Uday S Reddy Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Apr 25 17:07:40 2011 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 1QENO0-0002E2-2I for geb-bug-gnu-emacs@m.gmane.org; Mon, 25 Apr 2011 17:07:40 +0200 Original-Received: from localhost ([::1]:45430 helo=lists2.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QENNz-0005lB-1o for geb-bug-gnu-emacs@m.gmane.org; Mon, 25 Apr 2011 11:07:39 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:57786) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QENNv-0005kg-Vz for bug-gnu-emacs@gnu.org; Mon, 25 Apr 2011 11:07:36 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QENNu-0003gh-UP for bug-gnu-emacs@gnu.org; Mon, 25 Apr 2011 11:07:35 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:38991) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QENNu-0003gc-Rf for bug-gnu-emacs@gnu.org; Mon, 25 Apr 2011 11:07:34 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1QENKU-0000hK-Io; Mon, 25 Apr 2011 11:04:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 25 Apr 2011 15:04:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 8548 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 8548-submit@debbugs.gnu.org id=B8548.13037438182651 (code B ref 8548); Mon, 25 Apr 2011 15:04:02 +0000 Original-Received: (at 8548) by debbugs.gnu.org; 25 Apr 2011 15:03:38 +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 1QENK5-0000gi-Pd for submit@debbugs.gnu.org; Mon, 25 Apr 2011 11:03:38 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1QENK3-0000gX-Uq for 8548@debbugs.gnu.org; Mon, 25 Apr 2011 11:03:36 -0400 Original-Received: from 121-249-126-200.fibertel.com.ar ([200.126.249.121]:35240 helo=ceviche.home) by fencepost.gnu.org with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1QENJx-0001bX-ME; Mon, 25 Apr 2011 11:03:30 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id 40C116618A; Mon, 25 Apr 2011 12:03:27 -0300 (ART) In-Reply-To: <83wriibi1b.fsf@cs.bham.ac.uk> (Uday S. Reddy's message of "Mon, 25 Apr 2011 14:02:40 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Mon, 25 Apr 2011 11:04:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) 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:45997 Archived-At: > The Lisp debugger is supposed to enter a recursive editing level. So, one > would expect that it would be possible to exit each recursive level > independently. The original debugger implemented in Elisp used to work > fine. But, ever since the debugger was moved to the C implementation > (probably Emacs 19), the recursive levels cannot be exited. > To reproduce the problem, do `M-: (debug)' and then type something > errorneous, e.g., > e RET (car 1) RET > A second recursive level gets entered. However, exit-recursive-edit does > not do its job here. It says "Cannot return from the debugger in an error". This part of the C code was changed recently, so now the behavior is that you get "Wrong type argument: listp, 1" in the minibuffer and you're back in the first recursive level (which all sounds right). OTOH the *Backtrace* buffer does not display the stack trace any more and is in fundamental mode, so there's still something wrong here. BTW, you get the same result if you hit `c' rather than calling exit-recursive-edit. Stefan