From: Rafael D Sorkin <rsorkin@perimeterinstitute.ca>
To: 27016@debbugs.gnu.org
Cc: Rafael D Sorkin <rsorkin@perimeterinstitute.ca>
Subject: bug#27016: possible bug in `defsetf'
Date: Mon, 22 May 2017 02:39:28 -0400 [thread overview]
Message-ID: <E1dCh04-0001Bd-Ec@mars.pi.local> (raw)
Hi,
The second behavior below seems like a bug to me. It was not
present in emacs 23.1
Best wishes,
Rafael Sorkin
emacs-version ; 23.1.1
(setq pair (cons 3 4)) ; (3 . 4)
(foobar pair) ; Symbol's function definition is void: foobar
(setf (foobar pair) 0) ; No setf-method known for foobar
(unless t
(defalias 'foobar 'cons)
(defsetf foobar setcar)) ; nil
(foobar pair) ; same as above
(setf (foobar pair) 0) ; same as above
pair ; (3 . 4)
emacs-version ; 24.5.1
(setq pair (cons 3 4)) ; (3 . 4)
(foobar pair) ; Symbol's function definition is void: foobar
(setf (foobar pair) 0) ; (foobar pair) is not a valid place expression
(unless t
(defalias 'foobar 'cons)
(defsetf foobar setcar)) ; nil
(foobar pair) ; same as above
(setf (foobar pair) 0) ; 0 !
pair ; (0 . 4) !
~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
Rafael Sorkin
Perimeter Institute for Theoretical Physics
31 Caroline Street North
Waterloo, ON N2L 2Y5
Canada
~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
next reply other threads:[~2017-05-22 6:39 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-22 6:39 Rafael D Sorkin [this message]
2017-05-22 12:11 ` bug#27016: possible bug in `defsetf' npostavs
2017-05-22 20:25 ` Rafael D Sorkin
2017-05-22 21:18 ` npostavs
2017-05-22 23:10 ` Michael Heerdegen
2017-05-22 23:23 ` npostavs
2017-05-23 0:45 ` Michael Heerdegen
2017-05-23 0:51 ` npostavs
2017-05-23 1:18 ` Michael Heerdegen
2017-05-22 22:03 ` Rafael D Sorkin
2017-05-22 23:15 ` npostavs
2017-05-24 4:52 ` Rafael D Sorkin
2017-05-24 22:51 ` Michael Heerdegen
2017-05-25 1:50 ` npostavs
2017-05-25 4:59 ` Rafael D Sorkin
2017-05-25 5:01 ` Rafael D Sorkin
2017-05-25 10:38 ` npostavs
2017-05-25 20:26 ` Michael Heerdegen
2017-05-25 20:42 ` Noam Postavsky
2017-05-25 21:31 ` Michael Heerdegen
2017-05-25 23:03 ` npostavs
2017-05-25 23:40 ` Michael Heerdegen
2017-05-26 3:50 ` Stefan Monnier
2017-05-26 22:51 ` npostavs
2017-05-28 20:45 ` Stefan Monnier
2017-07-02 20:47 ` npostavs
2017-07-03 11:25 ` Michael Heerdegen
2017-07-09 20:13 ` npostavs
2017-07-10 0:26 ` Michael Heerdegen
2017-07-11 1:45 ` npostavs
2017-07-11 16:21 ` Stefan Monnier
2017-07-12 0:55 ` npostavs
2017-07-12 2:01 ` Stefan Monnier
2017-07-13 4:46 ` npostavs
2017-07-13 14:25 ` Stefan Monnier
2017-07-14 0:39 ` npostavs
2017-07-14 3:48 ` Stefan Monnier
2017-07-14 4:32 ` Stefan Monnier
2017-07-15 14:51 ` npostavs
2017-07-16 1:03 ` Stefan Monnier
2017-08-08 1:18 ` npostavs
2017-05-26 5:05 ` Rafael D Sorkin
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