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author | Eli Zaretskii <eliz@gnu.org> | 2023-08-18 09:19:59 +0300 |
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committer | Eli Zaretskii <eliz@gnu.org> | 2023-08-18 09:19:59 +0300 |
commit | f6ebd1ef0d028fb5d4551e6766ee882538db132a (patch) | |
tree | 98fc383496ffab208b05fa593cd265ea3d81e482 | |
parent | fac0e2d533427ba7afc2c11427f46acc57fa6be8 (diff) | |
download | emacs-f6ebd1ef0d028fb5d4551e6766ee882538db132a.tar.gz |
; * src/treesit.c (Ftreesit_node_parent): Improve commentary.
-rw-r--r-- | src/treesit.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/treesit.c b/src/treesit.c index 705ef6af39f..e359f903f28 100644 --- a/src/treesit.c +++ b/src/treesit.c @@ -1886,6 +1886,10 @@ Return nil if NODE has no parent. If NODE is nil, return nil. */) TSNode treesit_node = XTS_NODE (node)->node; Lisp_Object parser = XTS_NODE (node)->parser; TSTreeCursor cursor; + /* See the comments to treesit_cursor_helper about the algorithm for + finding the parent node. The complexity is roughly proportional + to the square root of the current node's depth in the parse tree, + and we punt if the tree is too deep. */ if (!treesit_cursor_helper (&cursor, treesit_node, parser)) return return_value; |