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#15294: 24.3.50; js2-mode parser is several times slower in lexical-binding mode Date: Sun, 08 Sep 2013 18:32:02 -0400 Message-ID: References: <871u51ll93.fsf@yandex.ru> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1378679599 7389 80.91.229.3 (8 Sep 2013 22:33:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 8 Sep 2013 22:33:19 +0000 (UTC) Cc: 15294@debbugs.gnu.org To: Dmitry Gutov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Sep 09 00:33:21 2013 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 1VInXk-0003yP-Qu for geb-bug-gnu-emacs@m.gmane.org; Mon, 09 Sep 2013 00:33:20 +0200 Original-Received: from localhost ([::1]:46860 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VInXk-00009N-9g for geb-bug-gnu-emacs@m.gmane.org; Sun, 08 Sep 2013 18:33:20 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48197) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VInXa-000077-84 for bug-gnu-emacs@gnu.org; Sun, 08 Sep 2013 18:33:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VInXS-0002eR-RV for bug-gnu-emacs@gnu.org; Sun, 08 Sep 2013 18:33:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:41153) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VInXS-0002e8-Nu for bug-gnu-emacs@gnu.org; Sun, 08 Sep 2013 18:33:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VInXS-0003Mz-EI for bug-gnu-emacs@gnu.org; Sun, 08 Sep 2013 18:33:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 08 Sep 2013 22:33:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 15294 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 15294-submit@debbugs.gnu.org id=B15294.137867953012861 (code B ref 15294); Sun, 08 Sep 2013 22:33:02 +0000 Original-Received: (at 15294) by debbugs.gnu.org; 8 Sep 2013 22:32:10 +0000 Original-Received: from localhost ([127.0.0.1]:49446 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VInWc-0003LM-Bv for submit@debbugs.gnu.org; Sun, 08 Sep 2013 18:32:10 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.182]:33170) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VInWa-0003L2-SK for 15294@debbugs.gnu.org; Sun, 08 Sep 2013 18:32:09 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av8EABK/CFG4rxBo/2dsb2JhbABEuzWDWRdzgh8BBVYjEAsOJhIUGA0kiCTBLZEKA6R6gV6DEw X-IPAS-Result: Av8EABK/CFG4rxBo/2dsb2JhbABEuzWDWRdzgh8BBVYjEAsOJhIUGA0kiCTBLZEKA6R6gV6DEw X-IronPort-AV: E=Sophos;i="4.84,565,1355115600"; d="scan'208";a="26854894" Original-Received: from 184-175-16-104.dsl.teksavvy.com (HELO pastel.home) ([184.175.16.104]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 08 Sep 2013 18:28:46 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id 8FCE962E36; Sun, 8 Sep 2013 18:32:02 -0400 (EDT) In-Reply-To: <871u51ll93.fsf@yandex.ru> (Dmitry Gutov's message of "Fri, 06 Sep 2013 23:59:20 +0300") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) 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:78137 Archived-At: A first likely candidate is the bunch of `catch/throw' in js2-get-token, since catch, unwind-protect and condition-case are all implemented in the bytecode interpreter in ways which don't work well for lexical scoping. Stefan "Just reporting on his little progress"