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* bug#40671: [DOC] modify literal objects
@ 2020-04-16 19:28 Kevin Vigouroux via Bug reports for GNU Emacs, the Swiss army knife of text editors
  2020-04-17 16:09 ` Mattias Engdegård
  2020-04-18 20:10 ` Paul Eggert
  0 siblings, 2 replies; 170+ messages in thread
From: Kevin Vigouroux via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2020-04-16 19:28 UTC (permalink / raw)
  To: 40671

Hello!

The Emacs Lisp manual often gives the impression that the user can
modify literal lists (e.g. 5.6.1 Altering List Elements with `setcar`).

LISP> (setq x '(1 2))
(1 2)
LISP> (setcar x 4)
LISP> x
(4 2)

However, it is also mentioned that one should not modify the literal
objects because of the byte compilation (c.f. 2.7 Equality Predicate).

Can we modify literal objects?

See Also:

https://emacs.stackexchange.com/questions/45820/when-to-use-quote-for-lists-modifying-quoted-lists-in-elisp
https://emacs.stackexchange.com/questions/57806/which-lisp-objects-are-byte-compiled

Best regards,
Kevin Vigouroux.





^ permalink raw reply	[flat|nested] 170+ messages in thread

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2020-04-16 19:28 bug#40671: [DOC] modify literal objects Kevin Vigouroux via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-04-17 16:09 ` Mattias Engdegård
2020-04-17 16:37   ` Mattias Engdegård
2020-04-17 17:27     ` Eli Zaretskii
2020-04-18 20:10 ` Paul Eggert
2020-04-18 21:54   ` Drew Adams
2020-04-19  2:39     ` Noam Postavsky
2020-04-19 20:39     ` Paul Eggert
2020-04-19 21:01       ` Drew Adams
2020-04-19 21:16         ` Paul Eggert
2020-04-19 22:24           ` Drew Adams
2020-04-19 22:51             ` Paul Eggert
2020-04-20  5:32               ` Drew Adams
2020-04-22 17:36                 ` Paul Eggert
2020-05-01  3:03     ` Dmitry Gutov
2020-05-01  5:16       ` Drew Adams
2020-05-01 21:46       ` Paul Eggert
2020-05-01 23:37         ` Dmitry Gutov
2020-04-19  2:26   ` Richard Stallman
2020-04-19 13:56   ` Eli Zaretskii
2020-04-19 16:59     ` Mattias Engdegård
2020-04-19 19:21       ` Eli Zaretskii
2020-04-19 21:02       ` Paul Eggert
2020-04-19 21:11         ` Drew Adams
2020-04-19 21:57         ` Michael Heerdegen
2020-04-19 22:41           ` Paul Eggert
2020-04-19 23:45             ` Michael Heerdegen
2020-04-20  0:24               ` Paul Eggert
2020-04-20  0:53                 ` Michael Heerdegen
2020-04-20  3:23                   ` Paul Eggert
2020-04-20  3:36                     ` Michael Heerdegen
2020-04-22  6:30                       ` Paul Eggert
2020-04-20  5:54                     ` Drew Adams
2020-04-22 17:21                       ` Paul Eggert
2020-04-23  0:49                         ` Michael Heerdegen
2020-04-24  2:36                           ` Richard Stallman
2020-04-24 15:08                             ` Drew Adams
2020-04-25  1:58                               ` Paul Eggert
2020-04-24 16:39                             ` Mattias Engdegård
2020-04-24 16:46                               ` Dmitry Gutov
2020-04-25  2:21                                 ` Paul Eggert
2020-04-25  2:40                                   ` Dmitry Gutov
2020-04-25  3:20                                     ` Paul Eggert
2020-04-25 19:30                                       ` Dmitry Gutov
2020-04-26  3:49                                         ` Paul Eggert
2020-04-26 14:03                                           ` Dmitry Gutov
2020-04-26 14:19                                             ` Eli Zaretskii
2020-04-26 14:34                                               ` Dmitry Gutov
2020-04-26 15:46                                                 ` Eli Zaretskii
2020-04-26 16:02                                                   ` Dmitry Gutov
2020-04-26 16:58                                                     ` Eli Zaretskii
2020-04-26 17:39                                                       ` Dmitry Gutov
2020-04-26 18:14                                                         ` Eli Zaretskii
2020-04-26 18:32                                                           ` Dmitry Gutov
2020-04-26 18:41                                                             ` Eli Zaretskii
2020-04-26 18:53                                                               ` Dmitry Gutov
2020-04-26 18:57                                             ` Paul Eggert
2020-04-26 19:22                                               ` Philipp Stephani
2020-04-26 20:14                                                 ` Paul Eggert
2020-04-26 21:23                                               ` Dmitry Gutov
2020-04-26 23:13                                                 ` Paul Eggert
2020-04-27  0:53                                                   ` Dmitry Gutov
2020-04-27  1:49                                                     ` Paul Eggert
2020-04-28  3:05                                                       ` Dmitry Gutov
2020-04-28  8:17                                                         ` Paul Eggert
2020-04-28 13:54                                                           ` Dmitry Gutov
2020-04-28 17:59                                                             ` Paul Eggert
2020-04-28 18:46                                                               ` Dmitry Gutov
2020-04-28 19:20                                                                 ` Paul Eggert
2020-04-28 19:33                                                                   ` Dmitry Gutov
2020-04-28 20:09                                                                     ` Paul Eggert
2020-04-28 21:10                                                                       ` Dmitry Gutov
2020-04-28 23:10                                                                         ` Paul Eggert
2020-04-28 23:36                                                                           ` Dmitry Gutov
2020-04-28 23:53                                                                             ` Paul Eggert
2020-04-28 23:57                                                                               ` Dmitry Gutov
2020-04-28 23:53                                                                           ` Dmitry Gutov
2020-04-29  0:04                                                                             ` Paul Eggert
2020-04-29  0:14                                                                               ` Dmitry Gutov
2020-04-29  0:55                                                                           ` Drew Adams
2020-04-29  1:03                                                                             ` Dmitry Gutov
2020-04-29  1:15                                                                               ` Drew Adams
2020-04-29  1:27                                                                                 ` Michael Heerdegen
2020-04-29  1:38                                                                             ` Paul Eggert
2020-04-29  4:36                                                                               ` Drew Adams
2020-04-29 16:18                                                                                 ` Paul Eggert
2020-05-01  2:47                                                                                   ` Richard Stallman
2020-05-01  6:23                                                                                     ` Eli Zaretskii
2020-05-01  3:13                                                                               ` Dmitry Gutov
2020-05-01  5:15                                                                                 ` Drew Adams
2020-05-01 21:40                                                                                 ` Paul Eggert
2020-05-01 22:05                                                                                   ` Drew Adams
2020-05-01 22:28                                                                                     ` Paul Eggert
2020-05-02  1:07                                                                                   ` Dmitry Gutov
2020-05-02  6:28                                                                                     ` Paul Eggert
2020-05-02 15:42                                                                                       ` Dmitry Gutov
2020-05-02 19:35                                                                                         ` Paul Eggert
2020-05-03  1:30                                                                                           ` Dmitry Gutov
2020-05-03  7:40                                                                                             ` Paul Eggert
2020-05-03 16:44                                                                                               ` Dmitry Gutov
2020-05-03 20:48                                                                                                 ` Paul Eggert
2020-05-03 22:17                                                                                                   ` Dmitry Gutov
2020-05-03 22:18                                                                                                   ` Dmitry Gutov
2020-05-03 22:39                                                                                                     ` Paul Eggert
2020-05-03 22:53                                                                                                       ` Dmitry Gutov
2020-05-03 23:10                                                                                                         ` Paul Eggert
2020-05-04 10:16                                                                                                           ` Dmitry Gutov
2020-05-04 17:52                                                                                                             ` Paul Eggert
2020-05-05  1:39                                                                                                               ` Dmitry Gutov
2020-05-05  6:09                                                                                                                 ` Paul Eggert
2020-05-05 12:38                                                                                                                   ` Dmitry Gutov
2020-05-09  6:10                                                                                                                     ` Paul Eggert
2020-05-10  3:13                                                                                                                       ` Dmitry Gutov
2020-05-10 13:34                                                                                                                         ` Dmitry Gutov
2020-05-10 17:29                                                                                                                         ` Paul Eggert
2020-05-11  0:00                                                                                                                           ` Michael Heerdegen
2020-05-11  0:26                                                                                                                             ` Dmitry Gutov
2020-05-11  1:47                                                                                                                             ` Drew Adams
2020-05-11  1:54                                                                                                                               ` Dmitry Gutov
2020-05-11  2:33                                                                                                                                 ` Drew Adams
2020-05-11  2:56                                                                                                                               ` Michael Heerdegen
2020-05-11  4:21                                                                                                                                 ` Drew Adams
2020-05-11  4:51                                                                                                                                   ` Michael Heerdegen
2020-05-11  6:28                                                                                                                                     ` Paul Eggert
2020-05-11 13:57                                                                                                                                       ` Noam Postavsky
2020-05-11 22:36                                                                                                                                         ` Michael Heerdegen
2020-05-11 22:30                                                                                                                                       ` Michael Heerdegen
2020-05-12  3:20                                                                                                                                       ` Richard Stallman
2020-05-12  4:24                                                                                                                                         ` Michael Heerdegen
2020-05-13  3:57                                                                                                                                           ` Richard Stallman
2020-05-13  5:05                                                                                                                                             ` Michael Heerdegen
2020-05-14  5:14                                                                                                                                               ` Richard Stallman
     [not found]                                                                                                                                       ` <05BEF593-F16A-4DEE-98BC-653221F1F9EE@acm.org>
2020-05-17  0:11                                                                                                                                         ` Paul Eggert
2020-05-17  9:43                                                                                                                                           ` Mattias Engdegård
2020-05-17 16:38                                                                                                                                             ` Paul Eggert
2020-05-11  1:53                                                                                                                             ` Paul Eggert
2020-05-11  3:18                                                                                                                               ` Michael Heerdegen
2020-05-11  0:44                                                                                                                           ` Dmitry Gutov
2020-05-11  1:57                                                                                                                             ` Paul Eggert
2020-05-12  1:59                                                                                                                               ` Dmitry Gutov
2020-05-17  1:28                                                                                                                                 ` Paul Eggert
2020-05-17  5:02                                                                                                                                   ` Michael Heerdegen
2020-05-17 16:34                                                                                                                                     ` Paul Eggert
2020-05-17 12:39                                                                                                                                   ` Dmitry Gutov
2020-05-17 16:21                                                                                                                                     ` Paul Eggert
2020-05-05 17:40                                                                                                                   ` Drew Adams
2020-05-05 18:49                                                                                                                     ` Dmitry Gutov
2020-05-05 19:26                                                                                                                       ` Drew Adams
2020-05-05 20:48                                                                                                               ` Kevin Vigouroux via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-05-09  5:57                                                                                                                 ` Paul Eggert
2020-04-28 21:18                                                                       ` Dmitry Gutov
2020-04-28 17:25                                                           ` Drew Adams
2020-04-28 17:47                                                             ` Paul Eggert
2020-04-29  0:32                                                               ` Michael Heerdegen
2020-04-29  1:40                                                                 ` Paul Eggert
2020-04-29  4:40                                                                   ` Michael Heerdegen
2020-04-29  8:01                                                                     ` Eli Zaretskii
2020-04-29 16:36                                                                 ` Paul Eggert
2020-04-24 17:18                               ` Drew Adams
2020-04-25  3:38                               ` Richard Stallman
2020-04-25 18:26                                 ` Paul Eggert
2020-04-25  2:22                           ` Paul Eggert
2020-04-25  6:00                             ` Andreas Schwab
2020-04-25 18:23                               ` Paul Eggert
2020-04-28 23:52                             ` Michael Heerdegen
2020-04-21  1:25               ` Michael Heerdegen
2020-04-21  2:20                 ` Paul Eggert
2020-04-20  6:02             ` Drew Adams
2020-04-19 20:45     ` Paul Eggert
2020-04-20 14:10       ` Eli Zaretskii

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