Set jit-lock-contextually in treesit-major-mode-setup

* lisp/treesit.el (treesit-major-mode-setup): Set jit-lock-contextually.

1 files changed, 5 insertions, 0 deletions

diff --git a/lisp/treesit.el b/lisp/treesit.el
index 177c185c745..4bba2218327 100644
--- a/lisp/treesit.el
+++ b/lisp/treesit.el
@@ -1302,6 +1302,11 @@ If `treesit-defun-type-regexp' is non-nil, setup
     (setq-local font-lock-defaults '(nil t))
     (setq-local font-lock-fontify-region-function
                 #'treesit-font-lock-fontify-region)
+    ;; `font-lock-mode' sets this to t when syntactic font-lock is
+    ;; enabled (i.e., `font-lock-keywords-only' is nil).  We disable
+    ;; font-lock's syntactic fontification, and do it ourselves, so we
+    ;; still need `jit-lock-contextually' to be t, set it ourselves.
+    (setq-local jit-lock-contextually t)
     (font-lock-mode 1)
     (treesit-font-lock-recompute-features))
   ;; Indent.