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: Michael Heerdegen <michael_heerdegen <at> web.de>
Subject: bug#24171: closed (Re: bug#24171: 25.1; Bytecode returns nil
 instead of expected closure)
Date: Tue, 09 Aug 2016 17:12:01 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#24171: 25.1; Bytecode returns nil instead of expected closure

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 24171 <at> debbugs.gnu.org.

-- 
24171: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=24171
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (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

[Message part 3 (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)

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