Reuse Vec in children iterator cache

DioxusLabs · Sep 25, 2023 · eda4487 · eda4487
1 parent 18161e6
commit eda4487
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/src/tree/taffy_tree/tree.rs b/src/tree/taffy_tree/tree.rs
@@ -100,9 +100,9 @@ impl LayoutTree for Taffy {
     fn children(&self, node: NodeId) -> Self::ChildIter<'_> {
         let mut cache = self.node_children_cache.borrow_mut();
         if cache.0 != node {
-            let mut children = Vec::with_capacity(self.children.len());
-            find_children_recursive(&mut children, self, node);
-            *cache = (node, children);
+            cache.1.clear();
+            cache.0 = node;
+            find_children_recursive(&mut cache.1, self, node);
         }
         RefCellVecIter { children: RefMut::map(cache, |c| &mut c.1), index: 0 }
     }