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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Alan Mackenzie <acm@muc.de>
Cc: emacs-devel@gnu.org
Subject: Re: Lexical binding: why?
Date: Tue, 28 May 2019 13:21:22 -0400	[thread overview]
Message-ID: <jwvimtuv6mk.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <20190528134451.GB5296@ACM> (Alan Mackenzie's message of "Tue, 28 May 2019 13:44:51 +0000")

> Just in passing, the Elisp manual doesn't seem to be as helpful as it
> might be, here.  It doesn't positively recommend using lexical binding
> in new programs, for example.

Thanks for the heads up.

> Just in passing2, it seems to be difficult to enable lexical binding
> conditionally.  The best that I can come up with is something like:
>
> -*- eval: (setq lexical-binding (> emacs-major-version 25)) -*-

Hmm... why do you need that?  Is that because of a performance problem
in Emacs-24's lexical-binding support (likely the one that affects
condition-case and friends)?


        Stefan




  reply	other threads:[~2019-05-28 17:21 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-28 10:08 Lexical binding: why? Alan Mackenzie
2019-05-28 12:01 ` Tadeus Prastowo
2019-05-28 12:26 ` Stefan Monnier
2019-05-28 13:02   ` Dmitry Gutov
2019-05-28 13:25     ` Stefan Monnier
2019-05-28 13:46       ` Dmitry Gutov
2019-05-28 13:44   ` Alan Mackenzie
2019-05-28 17:21     ` Stefan Monnier [this message]
2019-05-28 17:41       ` Alan Mackenzie
2019-05-28 17:58         ` Stefan Monnier
2019-05-28 15:19 ` John Wiegley

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