From: Hongyi Zhao <hongyi.zhao@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>, Tassilo Horn <tsdh@gnu.org>
Subject: Re: Add/remove an element into/from a cons.
Date: Tue, 26 Oct 2021 21:41:38 +0800 [thread overview]
Message-ID: <CAGP6PO+p50GpY+FoM__rk1YNCabvwCaVmaOwdL+EB0Z6wvWhWA@mail.gmail.com> (raw)
In-Reply-To: <jwvtuh4rmj0.fsf-monnier+emacs@gnu.org>
On Tue, Oct 26, 2021 at 8:36 PM Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>
> Tassilo Horn [2021-10-26 10:15:29] wrote:
> > Hongyi Zhao <hongyi.zhao@gmail.com> writes:
> >> I tried with the following function:
> >>
> >> ```emacs-lisp
> >> (defun hz/scratch-init ()
> >> (with-current-buffer "*scratch*"
> >> (make-local-variable 'company-backends)
> >> (setf (alist-get 'company-tabnine company-backends)
> >> (remove 'company-ispell (alist-get 'company-tabnine
> >> company-backends)))
> >> ))
> >> ```
> >>
> >> The above method will set the correct company-backends when I'm on
> >> scratch buffer. But I also find that when I switch to other buffers,
> >> says, AUCTeX based LaTeX-mode, the company-backends settings still
> >> remains the same,
> >
> > You mean, the above function changes the value not only in *scratch* but
> > all buffers? That shouldn't happen, I'd say, as the function explicitly
> > makes `company-backends' buffer-local in *scratch* before modifying it.
>
> The `setf` above changes the data structure by side-effect.
> It does not change the variable itself.
How can I solve this problem to achieve the same effect as my original function?
HZ
next prev parent reply other threads:[~2021-10-26 13:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-26 2:05 Add/remove an element into/from a cons Hongyi Zhao
2021-10-26 4:57 ` Tassilo Horn
2021-10-26 5:40 ` Hongyi Zhao
2021-10-26 5:42 ` Hongyi Zhao
2021-10-26 6:07 ` Hongyi Zhao
2021-10-26 6:18 ` Tassilo Horn
2021-10-26 6:30 ` Hongyi Zhao
2021-10-26 6:39 ` Hongyi Zhao
2021-10-26 6:08 ` Tassilo Horn
2021-10-26 6:17 ` Hongyi Zhao
2021-10-26 6:22 ` Tassilo Horn
2021-10-26 8:12 ` Hongyi Zhao
2021-10-26 8:15 ` Tassilo Horn
2021-10-26 9:26 ` Hongyi Zhao
2021-10-26 9:31 ` Hongyi Zhao
2021-10-26 18:56 ` Tassilo Horn
2021-10-27 1:39 ` Hongyi Zhao
2021-10-27 4:54 ` Hongyi Zhao
2021-10-27 5:13 ` Hongyi Zhao
2021-10-27 18:43 ` Tassilo Horn
2021-10-28 4:14 ` Hongyi Zhao
2021-10-28 4:36 ` Hongyi Zhao
2021-10-28 5:40 ` Hongyi Zhao
2021-10-26 12:36 ` Stefan Monnier
2021-10-26 13:41 ` Hongyi Zhao [this message]
2021-10-26 6:22 ` Hongyi Zhao
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAGP6PO+p50GpY+FoM__rk1YNCabvwCaVmaOwdL+EB0Z6wvWhWA@mail.gmail.com \
--to=hongyi.zhao@gmail.com \
--cc=help-gnu-emacs@gnu.org \
--cc=monnier@iro.umontreal.ca \
--cc=tsdh@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.