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Diffstat (limited to 'vendor/rowan/src/cursor.rs')
| -rw-r--r-- | vendor/rowan/src/cursor.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/vendor/rowan/src/cursor.rs b/vendor/rowan/src/cursor.rs index 39b0c9624..671be2348 100644 --- a/vendor/rowan/src/cursor.rs +++ b/vendor/rowan/src/cursor.rs @@ -390,7 +390,7 @@ impl NodeData { } fn prev_sibling(&self) -> Option<SyntaxNode> { let mut rev_siblings = self.green_siblings().enumerate().rev(); - let index = rev_siblings.len() - (self.index() as usize); + let index = rev_siblings.len().checked_sub(self.index() as usize + 1)?; rev_siblings.nth(index); rev_siblings.find_map(|(index, child)| { |