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Don't underflow when calling symbols_containing_offset(0)

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Antonio Scandurra 2022-03-29 13:49:09 +02:00
parent d7a39a2116
commit bfa5dd52dd
1 changed files with 2 additions and 1 deletions
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3
crates/language/src/buffer.rs
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@ -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);