1 files changed, 33 insertions, 0 deletions
diff --git a/node_modules/react-dom/lib/ReactHostOperationHistoryHook.js b/node_modules/react-dom/lib/ReactHostOperationHistoryHook.js
new file mode 100644
index 000000000..27d3f9340
--- /dev/null
+++ b/node_modules/react-dom/lib/ReactHostOperationHistoryHook.js
@@ -0,0 +1,33 @@
+/**
+ * Copyright 2016-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * 
+ */
+
+'use strict';
+
+var history = [];
+
+var ReactHostOperationHistoryHook = {
+  onHostOperation: function (operation) {
+    history.push(operation);
+  },
+  clearHistory: function () {
+    if (ReactHostOperationHistoryHook._preventClearing) {
+      // Should only be used for tests.
+      return;
+    }
+
+    history = [];
+  },
+  getHistory: function () {
+    return history;
+  }
+};
+
+module.exports = ReactHostOperationHistoryHook;
+\ No newline at end of file