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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Tomas Hlavaty <tom@logand.com>
Cc: LdBeth <andpuke@foxmail.com>,  emacs-devel@gnu.org
Subject: Re: using finalizers
Date: Sat, 01 Jan 2022 15:47:24 -0500	[thread overview]
Message-ID: <jwvfsq72nlx.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <877dbjkxui.fsf@logand.com> (Tomas Hlavaty's message of "Sat, 01 Jan 2022 21:25:09 +0100")

> In Emacs Lisp, the semantics is: call this thunk when the returned
> finalizer gets collected.  So, if I want to finalize my object, I have
> too keep the reference to the finalizer.

That's right: if you want an object to have a finalizer, you need to
save that finalizer somewhere inside the object.
IOW the object literally "has a finalizer" somewhere inside.

There's no doubt that it's different.
Do you have concrete cases where this difference introduces a difficulty?


        Stefan




  reply	other threads:[~2022-01-01 20:47 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-30 22:43 using finalizers Tomas Hlavaty
2021-12-31  2:46 ` LdBeth
2021-12-31  3:29   ` Stefan Monnier
2021-12-31  3:36     ` Stefan Monnier
2021-12-31  4:30     ` LdBeth
2021-12-31  4:43       ` LdBeth
2021-12-31  6:28   ` Tomas Hlavaty
2021-12-31 10:59     ` LdBeth
2021-12-31 11:18       ` Tomas Hlavaty
2021-12-31 11:41         ` LdBeth
2021-12-31 12:01           ` Tomas Hlavaty
2022-01-01 17:00     ` Stefan Monnier
2022-01-01 20:25       ` Tomas Hlavaty
2022-01-01 20:47         ` Stefan Monnier [this message]
2022-01-01 22:55           ` Tomas Hlavaty
2022-01-01 23:18             ` Stefan Monnier
2022-01-01 23:47               ` Tomas Hlavaty
2022-01-01 23:26             ` Tomas Hlavaty
2021-12-31  7:50   ` Eli Zaretskii
2021-12-31  9:31     ` Tomas Hlavaty
2021-12-31 12:27       ` Eli Zaretskii
2022-01-01 17:58         ` Tomas Hlavaty
2022-01-01 18:20           ` Eli Zaretskii
2022-01-01 20:55             ` Stefan Monnier
2022-01-01 23:05               ` Tomas Hlavaty
2022-01-01 23:21                 ` Stefan Monnier
2021-12-31 14:23       ` Rudolf Schlatte
2021-12-31 16:21         ` Stefan Monnier
2022-01-01 17:37           ` Tomas Hlavaty
2022-01-01 22:36         ` Tomas Hlavaty
2022-01-02  6:54           ` Eli Zaretskii
2022-01-02  7:53             ` Tomas Hlavaty
2022-01-02  8:33               ` Eli Zaretskii
2022-01-02 13:10                 ` Tomas Hlavaty
2022-01-02 14:42                   ` Eli Zaretskii
2022-01-02 15:16                     ` Eli Zaretskii
2022-01-02 17:18                       ` Tomas Hlavaty
2022-01-02 18:11           ` Rudolf Schlatte
2022-01-03  0:37             ` Tomas Hlavaty
2022-01-04  3:08               ` Richard Stallman
2021-12-31 14:39 ` LdBeth
2022-01-01 17:59   ` Tomas Hlavaty

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