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From: Troy Brown <brownts@troybrown.dev>
To: Yuan Fu <casouri@gmail.com>
Cc: Eli Zaretskii <eliz@gnu.org>, 64321@debbugs.gnu.org
Subject: bug#64321: 29.0.92; Tree-Sitter/which-function Narrow/Widen causes modified buffer
Date: Wed, 28 Jun 2023 12:25:02 -0400	[thread overview]
Message-ID: <CABvCZ40DU+3OXycMChOZBicWKZE=8H-6_CKV9yLeDZx0Lxou4g@mail.gmail.com> (raw)
In-Reply-To: <8D52F265-1596-4D95-BFCD-75C897412AC2@gmail.com>

On Wed, Jun 28, 2023 at 12:04 AM Yuan Fu <casouri@gmail.com> wrote:
>
> Narrowing and widening are transparent to tree-sitter, so when the buffer widens, from tree-sitter’s POV, text are added to the buffer. Which-func calling the tree-sitter current-defund function ultimately leads to tree-sitter calling treesit—font-lock-notifier which puts text properties on the “added” portion of the buffer, which changed the modified status.
>
> treesit—font-lock-notifier should put text properties without changing modified status, like what jit-lock does. This patch should fix it.
>

Thanks for the explanation and the supplied patch.  I can confirm that
this patch fixes the issue.





  parent reply	other threads:[~2023-06-28 16:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-28  2:23 bug#64321: 29.0.92; Tree-Sitter/which-function Narrow/Widen causes modified buffer Troy Brown
2023-06-28  4:04 ` Yuan Fu
2023-06-28 12:01   ` Eli Zaretskii
2023-06-28 16:25   ` Troy Brown [this message]
2023-06-28 20:09     ` Yuan Fu

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