feature/tree-sitter 750090fd07 4/5: * lisp/treesit.el (treesit-node-at): Add check for nil node.

[Yuan Fu]

branch: feature/tree-sitter
commit 750090fd076e6923c5cee6f67b170416d48694da
Author: Yuan Fu <casouri@gmail.com>
Commit: Yuan Fu <casouri@gmail.com>

    * lisp/treesit.el (treesit-node-at): Add check for nil node.
---
 lisp/treesit.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/treesit.el b/lisp/treesit.el
index 345aaf2e9b..60f375e9d9 100644
--- a/lisp/treesit.el
+++ b/lisp/treesit.el
@@ -143,7 +143,7 @@ that language in the current buffer, and use that."
                   (treesit-parser-root-node parser-or-lang)
                 (treesit-buffer-root-node parser-or-lang))))
     ;; TODO: We might want a `treesit-node-decendant-for-pos' in C.
-    (while (cond ((< (treesit-node-end node) point)
+    (while (cond ((and node (< (treesit-node-end node) point))
                   (setq node (treesit-node-next-sibling node))
                   t)
                  ((treesit-node-child node 0 named)