add strict null check and fix codes

2018-10-08 11:20:48 +08:00
parent 4a1137748c
commit 978e12b089
5 changed files with 14 additions and 4 deletions
--- a/src/rebuild.ts
+++ b/src/rebuild.ts
@@ -62,7 +62,11 @@ function rebuild(n: serializedNodeWithId): Node | null {
  if (n.type === NodeType.Document || n.type === NodeType.Element) {
    for (const childN of n.childNodes) {
      const childNode = rebuild(childN);
-      root.appendChild(childNode);
+      if (!childNode) {
+        console.warn('Failed to rebuild', childN);
+      } else {
+        root.appendChild(childNode);
+      }
    }
  }
  return root;