From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Jorgen Schaefer <contact@jorgenschaefer.de>
Cc: 20139@debbugs.gnu.org
Subject: bug#20139: 25.0.50; eval-buffer ignores lexical-binding
Date: Wed, 18 Mar 2015 23:10:30 -0400 [thread overview]
Message-ID: <jwvk2yd8z2a.fsf-monnier+emacsbugs@gnu.org> (raw)
In-Reply-To: <87d2466jr3.fsf@loki.jorgenschaefer.de> (Jorgen Schaefer's message of "Wed, 18 Mar 2015 23:09:04 +0100")
> (setq lexical-binding t)
> (message "%s" (lambda () a))
This is wrong. The `setq' above is an expression evaluated at run-time,
whereas what you want to say (that this code is written in the lexical
version of the Elisp language) is something that needs to be known before
evaluation proceeds.
You can do M-: (setq lexical-binding t) from that buffer in order to
tell Emacs that the code in the buffer uses the lexical
version of the Elisp language, or better, you should put a "-*-
lexical-binding:t -*-" at the top of the file.
Stefan
next prev parent reply other threads:[~2015-03-19 3:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-18 22:09 bug#20139: 25.0.50; eval-buffer ignores lexical-binding Jorgen Schaefer
2015-03-19 3:10 ` Stefan Monnier [this message]
2015-03-19 7:33 ` Jorgen Schäfer
2015-03-19 9:56 ` Nicolas Richard
2015-03-19 14:15 ` Stefan Monnier
[not found] ` <CALqDrSccFR=TMo=r96v_ODCJbq=afrcaXCse77shekyRWwEyxA@mail.gmail.com>
[not found] ` <jwvmw3959zl.fsf-monnier+emacsbugs@gnu.org>
2015-03-19 14:52 ` Jorgen Schäfer
2015-03-19 16:28 ` Stefan Monnier
2019-10-07 15:25 ` Lars Ingebrigtsen
2015-03-19 15:49 ` Glenn Morris
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