From 77381ceadd576127fa602ff61e8d7cd7092b3e79 Mon Sep 17 00:00:00 2001
From: Evan Almloff <ealmlof1@stumail.jccc.edu>
Date: Tue, 6 Dec 2022 09:54:44 -0600
Subject: [PATCH] fix memory leak

---
 packages/native-core/src/real_dom.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/native-core/src/real_dom.rs b/packages/native-core/src/real_dom.rs
index f5fb17603..ffda78ff7 100644
--- a/packages/native-core/src/real_dom.rs
+++ b/packages/native-core/src/real_dom.rs
@@ -76,6 +76,10 @@ impl<S: State> RealDom<S> {
         if self.node_id_mapping.len() <= element_id.0 {
             self.node_id_mapping.resize(element_id.0 + 1, None);
         }
+        if let Some(Some(old_id)) = self.node_id_mapping.get(element_id.0) {
+            // free the memory associated with the old node
+            self.tree.remove(*old_id);
+        }
         self.node_id_mapping[element_id.0] = Some(node_id);
     }