Don't underflow when calling symbols_containing_offset(0)

2022-03-29 15:08:37 +02:00
parent d7a39a2116
commit bfa5dd52dd
1 changed files with 2 additions and 1 deletions
@@ -1684,7 +1684,8 @@ impl BufferSnapshot {
        theme: Option<&SyntaxTheme>,
    ) -> Option<Vec<OutlineItem<Anchor>>> {
        let position = position.to_offset(&self);
-        let mut items = self.outline_items_containing(position - 1..position + 1, theme)?;
+        let mut items =
+            self.outline_items_containing(position.saturating_sub(1)..position + 1, theme)?;
        let mut prev_depth = None;
        items.retain(|item| {
            let result = prev_depth.map_or(true, |prev_depth| item.depth > prev_depth);