1 files changed, 75 insertions, 0 deletions
diff --git a/node_modules/react-dom/lib/ReactErrorUtils.js b/node_modules/react-dom/lib/ReactErrorUtils.js
new file mode 100644
index 000000000..d8b59dbd7
--- /dev/null
+++ b/node_modules/react-dom/lib/ReactErrorUtils.js
@@ -0,0 +1,75 @@
+/**
+ * Copyright 2013-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 caughtError = null;
+
+/**
+ * Call a function while guarding against errors that happens within it.
+ *
+ * @param {String} name of the guard to use for logging or debugging
+ * @param {Function} func The function to invoke
+ * @param {*} a First argument
+ * @param {*} b Second argument
+ */
+function invokeGuardedCallback(name, func, a) {
+  try {
+    func(a);
+  } catch (x) {
+    if (caughtError === null) {
+      caughtError = x;
+    }
+  }
+}
+
+var ReactErrorUtils = {
+  invokeGuardedCallback: invokeGuardedCallback,
+
+  /**
+   * Invoked by ReactTestUtils.Simulate so that any errors thrown by the event
+   * handler are sure to be rethrown by rethrowCaughtError.
+   */
+  invokeGuardedCallbackWithCatch: invokeGuardedCallback,
+
+  /**
+   * During execution of guarded functions we will capture the first error which
+   * we will rethrow to be handled by the top level error handler.
+   */
+  rethrowCaughtError: function () {
+    if (caughtError) {
+      var error = caughtError;
+      caughtError = null;
+      throw error;
+    }
+  }
+};
+
+if (process.env.NODE_ENV !== 'production') {
+  /**
+   * To help development we can get better devtools integration by simulating a
+   * real browser event.
+   */
+  if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {
+    var fakeNode = document.createElement('react');
+    ReactErrorUtils.invokeGuardedCallback = function (name, func, a) {
+      var boundFunc = func.bind(null, a);
+      var evtType = 'react-' + name;
+      fakeNode.addEventListener(evtType, boundFunc, false);
+      var evt = document.createEvent('Event');
+      evt.initEvent(evtType, false, false);
+      fakeNode.dispatchEvent(evt);
+      fakeNode.removeEventListener(evtType, boundFunc, false);
+    };
+  }
+}
+
+module.exports = ReactErrorUtils;
+\ No newline at end of file