From: Drew Adams <drew.adams@oracle.com>
To: Dmitry Gutov <dgutov@yandex.ru>,
Marcin Borkowski <mbork@mbork.pl>,
Philipp <p.stephani2@gmail.com>
Cc: Help Gnu Emacs mailing list <help-gnu-emacs@gnu.org>
Subject: RE: [External] : Re: Which Elisp types are mutable?
Date: Sun, 6 Jun 2021 01:57:15 +0000 [thread overview]
Message-ID: <SA2PR10MB4474E0E050C37529AA838647F3399@SA2PR10MB4474.namprd10.prod.outlook.com> (raw)
In-Reply-To: <82d0fa43-f0e1-f141-0433-526a5a9e717b@yandex.ru>
> > Lisp symbols are a kind of object. They have
> > attributes, including name, value (as a variable),
> > function definition, and an unlimited slew of
> > other attributes: their `symbol-properties'.
>
> A symbol does not contain its properties. They're
> stored in some alist externally.
You're missing the point, it seems. The distinction
is conceptual, not implementation. Contain / have /
point to ... distinctions don't matter here. And
their possible implementations matter even less.
By your criterion a cons cell doesn't contain its
cdr either - or its car. A symbol is a thing that
has properties / attributes, whatever you want to
call them. How it has them / where they're stored
is a completely different matter (and irrelevant here).
"Parts" of both a cons and a symbol are changeable.
They're both mutable, and that's the case using just
Lisp. ("Parts", not "the parts". Not all parts of
a symbol are changeable - e.g., the name isn't.)
next prev parent reply other threads:[~2021-06-06 1:57 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 [this message]
2021-07-05 18:41 ` Philipp
2021-07-05 18:48 ` Eli Zaretskii
2021-07-05 18:55 ` tomas
2021-07-05 19:26 ` [External] : " Drew Adams
2021-07-05 19:40 ` 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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