From: Yuan Fu <casouri@gmail.com>
To: miha@kamnitnik.top
Cc: 59630@debbugs.gnu.org, Eli Zaretskii <eliz@gnu.org>
Subject: bug#59630: 29.0.50; treesitter-buffer-root-node doesn't change when changing buffer restriction
Date: Sun, 27 Nov 2022 14:40:41 -0800 [thread overview]
Message-ID: <5C98EB8D-3A4A-4F07-BF0F-F3B9F1ED004D@gmail.com> (raw)
In-Reply-To: <87zgcc1s1n.fsf@miha-pc>
> On Nov 27, 2022, at 4:49 AM, miha--- via Bug reports for GNU Emacs, the Swiss army knife of text editors <bug-gnu-emacs@gnu.org> wrote:
>
> Treesitter doesn't seem to change its parse tree when changing
> restriction. It gets it correct the first time when we query the root
> node, but then, after changing restriction, it doesn't seem to get
> updated.
>
> The following is an M-x ielm session to demonstrate the problem
>
> ELISP> (set-buffer (get-buffer-create "test"))
> ELISP> (insert "echo '123'")
> ELISP> (narrow-to-region 1 4)
> ELISP> (buffer-string)
> "echo"
> ELISP> (treesit-buffer-root-node 'bash)
> #<treesit-node
> (program)
> in 1-4> ;; This is expected
>
> ELISP> (widen)
> ELISP> (treesit-buffer-root-node 'bash)
> #<treesit-node
> (program)
> in 1-4> ;; <---- This is not expected, the root node should span 1-9
>
> ELISP> (buffer-string)
> "echo '123'"
Thanks. We didn’t edit the buffer after widening, so tree-sitter didn’t reparse and used the old tree, which sees the narrowed buffer. Eli, what would be a good and reliable way to know that narrowing has changed? I see current_buffer->clip_changed set to 1 in narrow-to-region and widen, but when are they set to 0?
Yuan
next prev parent reply other threads:[~2022-11-27 22:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-27 12:49 bug#59630: 29.0.50; treesitter-buffer-root-node doesn't change when changing buffer restriction miha--- via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-11-27 22:40 ` Yuan Fu [this message]
2022-11-28 12:09 ` Eli Zaretskii
2022-11-28 22:37 ` Yuan Fu
2022-12-09 22:13 ` Yuan Fu
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