GNU bug report logs - #24171
25.1; Bytecode returns nil instead of expected closure

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#24171: closed (25.1; Bytecode returns nil instead of expected
 closure)
Date: Tue, 09 Aug 2016 17:12:01 +0000

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Your message dated Tue, 09 Aug 2016 13:05:31 -0400
with message-id <jwvshudna9l.fsf-monnier+emacsbugs <at> gnu.org>
and subject line Re: bug#24171: 25.1; Bytecode returns nil instead of expected closure
has caused the debbugs.gnu.org bug report #24171,
regarding 25.1; Bytecode returns nil instead of expected closure
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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24171: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=24171
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[Message part 2 (message/rfc822, inline)]

From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: bug-gnu-emacs <at> gnu.org
Cc: Alex Vong <alexvong1995 <at> gmail.com>
Subject: 25.1; Bytecode returns nil instead of expected closure
Date: Sun, 07 Aug 2016 01:16:50 +0200

Hello,

eval this defun:

(defun test ()
  (let ((my-cool-fun 'dummy))
    (let ((my-cool-fun
           (let ((calculate (lambda () 1)))
             (lambda () (setq my-cool-fun calculate))))
          (return-my-cool-fun (lambda () my-cool-fun)))
      (funcall my-cool-fun)
      (funcall return-my-cool-fun))))

(test) evals to a closure as expected.

Compile the defun and load it.  Then,

  (test) -> nil

which is wrong.

Found in

   https://lists.gnu.org/archive/html/help-gnu-emacs/2016-08/msg00038.html


Thanks,

Michael.



In GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, GTK+ Version 3.20.6)
 of 2016-08-04 built on drachen
Repository revision: 72221f51439d666d54f5d147f00ecdbb3778ab1b
Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
System Description:	Debian GNU/Linux testing (stretch)

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GSETTINGS NOTIFY
LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11

[Message part 3 (message/rfc822, inline)]

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Alex Vong <alexvong1995 <at> gmail.com>
Cc: Michael Heerdegen <michael_heerdegen <at> web.de>, 24171-done <at> debbugs.gnu.org
Subject: Re: bug#24171: 25.1; Bytecode returns nil instead of expected closure
Date: Tue, 09 Aug 2016 13:05:31 -0400

> Yes, this fixes the original problem.
> (https://lists.gnu.org/archive/html/help-gnu-emacs/2016-08/msg00038.html)
> The test is performed on master branch with patch applied.

Thanks, installed.


        Stefan

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