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Randomize test FilterCursor::prev

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Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This commit is contained in:
Antonio Scandurra 2022-03-15 14:37:04 +01:00
parent 45ce503afd
commit f10fd6c419
4 changed files with 56 additions and 16 deletions
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21
crates/sum_tree/src/cursor.rs
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@ -197,10 +197,6 @@ where
}
}
}
if self.stack.is_empty() {
self.position = D::default();
}
}
pub fn next(&mut self, cx: &<T::Summary as Summary>::Context) {
@ -235,8 +231,8 @@ where
..
} => {
if !descend {
entry.position = self.position.clone();
entry.index += 1;
entry.position = self.position.clone();
}
while entry.index < child_summaries.len() {
@ -244,9 +240,10 @@ where
if filter_node(next_summary) {
break;
} else {
entry.index += 1;
entry.position.add_summary(next_summary, cx);
self.position.add_summary(next_summary, cx);
}
entry.index += 1;
}
child_trees.get(entry.index)
@ -254,9 +251,9 @@ where
Node::Leaf { item_summaries, .. } => {
if !descend {
let item_summary = &item_summaries[entry.index];
self.position.add_summary(item_summary, cx);
entry.position.add_summary(item_summary, cx);
entry.index += 1;
entry.position.add_summary(item_summary, cx);
self.position.add_summary(item_summary, cx);
}
loop {
@ -264,9 +261,9 @@ where
if filter_node(next_item_summary) {
return;
} else {
self.position.add_summary(next_item_summary, cx);
entry.position.add_summary(next_item_summary, cx);
entry.index += 1;
entry.position.add_summary(next_item_summary, cx);
self.position.add_summary(next_item_summary, cx);
}
} else {
break None;
@ -598,6 +595,10 @@ where
pub fn next(&mut self, cx: &<T::Summary as Summary>::Context) {
self.cursor.next_internal(&mut self.filter_node, cx);
}
pub fn prev(&mut self, cx: &<T::Summary as Summary>::Context) {
self.cursor.prev_internal(&mut self.filter_node, cx);
}
}
impl<'a, F, T, S, U> Iterator for FilterCursor<'a, F, T, U>