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, 15 Sep 2013 01:06:08 -0400 Message-ID: References: <871u51ll93.fsf@yandex.ru> <5234FE2A.10105@yandex.ru> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1379221640 17017 80.91.229.3 (15 Sep 2013 05:07:20 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 15 Sep 2013 05:07:20 +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 Sun Sep 15 07:07:22 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 1VL4YL-0000zY-Ro for geb-bug-gnu-emacs@m.gmane.org; Sun, 15 Sep 2013 07:07:22 +0200 Original-Received: from localhost ([::1]:55409 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VL4YK-0006Kq-P6 for geb-bug-gnu-emacs@m.gmane.org; Sun, 15 Sep 2013 01:07:20 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:42422) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VL4Y9-0006Jx-Ok for bug-gnu-emacs@gnu.org; Sun, 15 Sep 2013 01:07:16 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VL4Y2-0001ji-BQ for bug-gnu-emacs@gnu.org; Sun, 15 Sep 2013 01:07:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:57670) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VL4Y2-0001je-83 for bug-gnu-emacs@gnu.org; Sun, 15 Sep 2013 01:07:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1VL4Y1-0004KO-SW for bug-gnu-emacs@gnu.org; Sun, 15 Sep 2013 01:07:02 -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, 15 Sep 2013 05:07:01 +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=B15294.137922156816554 (code B ref 15294); Sun, 15 Sep 2013 05:07:01 +0000 Original-Received: (at 15294) by debbugs.gnu.org; 15 Sep 2013 05:06:08 +0000 Original-Received: from localhost ([127.0.0.1]:37730 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VL4XA-0004Iw-Dn for submit@debbugs.gnu.org; Sun, 15 Sep 2013 01:06:08 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.182]:31607) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VL4X8-0004IV-Qr for 15294@debbugs.gnu.org; Sun, 15 Sep 2013 01:06:07 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av8EABK/CFG4rxBo/2dsb2JhbABEuzWDWRdzgh4BAQQBViMQCw4mEhQYDSSIHgbBLZEKA6R6gV6DEw X-IPAS-Result: Av8EABK/CFG4rxBo/2dsb2JhbABEuzWDWRdzgh4BAQQBViMQCw4mEhQYDSSIHgbBLZEKA6R6gV6DEw X-IronPort-AV: E=Sophos;i="4.84,565,1355115600"; d="scan'208";a="27848789" Original-Received: from 184-175-16-104.dsl.teksavvy.com (HELO fmsmemgm.homelinux.net) ([184.175.16.104]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 15 Sep 2013 01:02:22 -0400 Original-Received: by fmsmemgm.homelinux.net (Postfix, from userid 20848) id 7FF91AE29B; Sun, 15 Sep 2013 01:06:08 -0400 (EDT) In-Reply-To: <5234FE2A.10105@yandex.ru> (Dmitry Gutov's message of "Sun, 15 Sep 2013 03:24:10 +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:78415 Archived-At: >> If it indeed comes from the handling of catch/throw, then there are two >> ways to fix it: >> - ... >> - improve the byte-compiler so it can compile away cl-block/cl-return. >> This should not require new byte-codes, but requires delving "deepish" >> into the byte-compiler. > This would take care of `cl-block' wrappers, but it would do nothing about > explicit uses of `catch', right? All js2-mode's uses of catch/throw can be replaced with block/return, AFAICT (not that it's useful right now, since they'll just be macroexpanded back to catch/throw). Stefan