From: Drew Adams <drew.adams@oracle.com>
To: "tomas@tuxteam.de" <tomas@tuxteam.de>, Eli Zaretskii <eliz@gnu.org>
Cc: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Subject: RE: [External] : Re: Which Elisp types are mutable?
Date: Mon, 5 Jul 2021 19:26:23 +0000 [thread overview]
Message-ID: <SA2PR10MB4474D95AA081DC181D688D81F31C9@SA2PR10MB4474.namprd10.prod.outlook.com> (raw)
In-Reply-To: <20210705185503.GD6395@tuxteam.de>
> In Emacs Lisp, typical immutable objects are symbols, keywords, numbers
We've been around this block a few times already,
and I don't really want to stir the pot here.
But I'll mention that a Lisp symbol is a kind of
mutable "object". It has various properties, some
of which are predefined (whether or not they have
non-nil values) and any number of which others can
be created. Predefined properties include the
symbol name, value as a variable, and value as a
function.
All except the symbol name can be changed. Is a
symbol something immutable? Not IMO, but the
answer depends on what one means by "immutable".
https://www.gnu.org/software/emacs/manual/html_node/elisp/Symbol-Components.html
next prev parent reply other threads:[~2021-07-05 19:26 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-03 4:03 Which Elisp types are mutable? Marcin Borkowski
2021-06-03 12:11 ` Philipp
2021-06-05 11:22 ` Marcin Borkowski
2021-06-05 12:58 ` Philipp
2021-06-05 14:25 ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-07-05 18:40 ` Philipp
2021-07-05 20:19 ` Stefan Monnier
2021-07-05 20:44 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-05 20:58 ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-07-05 21:03 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-06-05 19:19 ` Marcin Borkowski
2021-06-05 20:17 ` [External] : " Drew Adams
2021-06-05 20:36 ` Dmitry Gutov
2021-06-06 1:57 ` Drew Adams
2021-07-05 18:41 ` Philipp
2021-07-05 18:48 ` Eli Zaretskii
2021-07-05 18:55 ` tomas
2021-07-05 19:26 ` Drew Adams [this message]
2021-07-05 19:40 ` [External] : " tomas
2021-07-05 20:03 ` Drew Adams
2021-07-05 20:12 ` tomas
2021-07-05 20:39 ` Drew Adams
2021-07-05 20:58 ` Emanuel Berg via Users list for the GNU Emacs text editor
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