add check in diff/hydrate when both oldVNode/node and vnode are null

kbrsh · Apr 15, 2017 · 5b029b0 · 5b029b0
1 parent 3b5558e
commit 5b029b0
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Showing 3 changed files with 13 additions and 5 deletions.
diff --git a/dist/moon.js b/dist/moon.js
@@ -661,7 +661,9 @@
     var hydrate = function (node, vnode, parent, instance) {
       var nodeName = node ? node.nodeName.toLowerCase() : null;
 
-      if (node === null) {
+      if (node === null && vnode === null) {
+        return null;
+      } else if (node === null) {
         // No node, create one
         var newNode = createNodeFromVNode(vnode, instance);
         appendChild(newNode, vnode, parent);
@@ -741,7 +743,9 @@
      * @return {Number} patch type
      */
     var diff = function (oldVNode, vnode, parent, instance) {
-      if (oldVNode === null) {
+      if (oldVNode === null && vnode === null) {
+        return PATCH.SKIP;
+      } else if (oldVNode === null) {
         // No Node, append a node
         appendChild(createNodeFromVNode(vnode, instance), vnode, parent);