1 files changed, 81 insertions, 0 deletions
diff --git a/node_modules/fbjs/lib/Deferred.js b/node_modules/fbjs/lib/Deferred.js
new file mode 100644
index 000000000..bfc358580
--- /dev/null
+++ b/node_modules/fbjs/lib/Deferred.js
@@ -0,0 +1,81 @@
+"use strict";
+
+var Promise = require("./Promise");
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+/**
+ * Copyright (c) 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.
+ *
+ * @typechecks
+ * 
+ */
+
+/**
+ * Deferred provides a Promise-like API that exposes methods to resolve and
+ * reject the Promise. It is most useful when converting non-Promise code to use
+ * Promises.
+ *
+ * If you want to export the Promise without exposing access to the resolve and
+ * reject methods, you should export `getPromise` which returns a Promise with
+ * the same semantics excluding those methods.
+ */
+var Deferred = function () {
+  function Deferred() {
+    var _this = this;
+
+    _classCallCheck(this, Deferred);
+
+    this._settled = false;
+    this._promise = new Promise(function (resolve, reject) {
+      _this._resolve = resolve;
+      _this._reject = reject;
+    });
+  }
+
+  Deferred.prototype.getPromise = function getPromise() {
+    return this._promise;
+  };
+
+  Deferred.prototype.resolve = function resolve(value) {
+    this._settled = true;
+    this._resolve(value);
+  };
+
+  Deferred.prototype.reject = function reject(reason) {
+    this._settled = true;
+    this._reject(reason);
+  };
+
+  Deferred.prototype["catch"] = function _catch() {
+    return Promise.prototype["catch"].apply(this._promise, arguments);
+  };
+
+  Deferred.prototype.then = function then() {
+    return Promise.prototype.then.apply(this._promise, arguments);
+  };
+
+  Deferred.prototype.done = function done() {
+    // Embed the polyfill for the non-standard Promise.prototype.done so that
+    // users of the open source fbjs don't need a custom lib for Promise
+    var promise = arguments.length ? this._promise.then.apply(this._promise, arguments) : this._promise;
+    promise.then(undefined, function (err) {
+      setTimeout(function () {
+        throw err;
+      }, 0);
+    });
+  };
+
+  Deferred.prototype.isSettled = function isSettled() {
+    return this._settled;
+  };
+
+  return Deferred;
+}();
+
+module.exports = Deferred;
+\ No newline at end of file