From: Pip Cet <pipcet@gmail.com>
To: 46834@debbugs.gnu.org
Subject: bug#46834: 28.0.50; byte-compiling the standard counter closure fails
Date: Sun, 28 Feb 2021 15:04:06 +0000 [thread overview]
Message-ID: <CAOqdjBcPE7Uff9eFf+ERQMDojecLLEdaqgVt8xHnRLdb-EVbgQ@mail.gmail.com> (raw)
(My apologies if this is well-known, documented, or plain stupid on my
part, but I think it's an interesting gotcha. Feel free to close
immediately in those cases.)
Steps to reproduce from emacs -Q:
Evaluate the following in a lexically-bound Emacs Lisp buffer:
(byte-compile (let ((l 0)) (lambda () (cl-incf l))))
Expected result:
A byte code object which will increment its return value by one every
time it is called.
Actual result:
A byte code object which always returns 1.
next reply other threads:[~2021-02-28 15:04 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-28 15:04 Pip Cet [this message]
2021-02-28 19:57 ` bug#46834: 28.0.50; byte-compiling the standard counter closure fails Pip Cet
2021-02-28 20:34 ` Pip Cet
2021-03-01 14:23 ` Stefan Monnier
2021-03-01 15:01 ` Pip Cet
2021-03-01 16:02 ` Stefan Monnier
2021-03-02 7:00 ` Lars Ingebrigtsen
2021-03-02 7:31 ` Pip Cet
2021-03-02 7:34 ` Lars Ingebrigtsen
2021-03-02 7:36 ` Pip Cet
2021-03-02 13:16 ` Eli Zaretskii
2021-03-02 13:19 ` Pip Cet
2021-03-02 13:48 ` Eli Zaretskii
2021-03-01 13:16 ` Lars Ingebrigtsen
2021-03-01 14:34 ` Stefan Monnier
2021-03-01 15:16 ` Pip Cet
2021-03-01 16:15 ` Stefan Monnier
2021-03-01 16:41 ` Pip Cet
2021-03-01 17:01 ` Stefan Monnier
2021-03-01 17:13 ` Pip Cet
2021-03-01 16:31 ` Eli Zaretskii
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