GNU bug report logs - #15294
24.3.50; js2-mode parser is several times slower in lexical-binding mode

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Package: emacs;

Reported by: Dmitry Gutov <dgutov <at> yandex.ru>

Date: Fri, 6 Sep 2013 21:01:02 UTC

Severity: normal

Found in version 24.3.50

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

Full log

Message #69 received at 15294 <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 15294 <at> debbugs.gnu.org
Subject: Re: bug#15294: 24.3.50; js2-mode parser is several times slower in
 lexical-binding mode
Date: Fri, 04 Oct 2013 05:38:20 +0300

On 03.10.2013 08:00, Stefan Monnier wrote:
> You can try setting byte-compile--use-old-handlers to nil now to see if
> it fixes your performance problems.

Indeed, I see the same peformance improvement you wrote about: 0.60s in 
byte-compiled dynamic binding mode, and now 0.48s in byte-compiled 
lexical binding mode. Thanks!

Not sure if I should close this issue now or at least wait until 
byte-compile--use-old-handlers is nil by default.
This bug report was last modified 10 years and 240 days ago.

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