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bug#64321: 29.0.92; Tree-Sitter/which-function Narrow/Widen causes modif
From: |
Eli Zaretskii |
Subject: |
bug#64321: 29.0.92; Tree-Sitter/which-function Narrow/Widen causes modified buffer |
Date: |
Wed, 28 Jun 2023 15:01:07 +0300 |
> From: Yuan Fu <casouri@gmail.com>
> Date: Tue, 27 Jun 2023 21:04:22 -0700
> Cc: 64321@debbugs.gnu.org,
> Eli Zaretskii <eliz@gnu.org>
>
> Thanks for the backtrace, it’s very helpful.
>
> 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. If this solves the problem, please install in the emacs-29
release branch.