use clone_from

matter-labs · May 8, 2024 · 9dee00b · 9dee00b
1 parent b9c2e44
commit 9dee00b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/rollback.rs b/src/rollback.rs
@@ -29,7 +29,7 @@ impl<K: Ord + Clone, V: Clone> RollbackableMap<K, V> {
         for (key, old_value) in self.old_entries[snapshot..].iter().rev() {
             changes
                 .entry(key.clone())
-                .and_modify(|(old, _)| *old = old_value.clone())
+                .and_modify(|(old, _): &mut (Option<V>, V)| old.clone_from(old_value))
                 .or_insert((old_value.clone(), self.map.get(key).unwrap().clone()));
         }
         changes