From de98e0b232509d5f40c135d540a70e415272ff85 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Wed, 3 May 2017 15:35:00 +0200
Subject: node_modules

---
 node_modules/fbjs/lib/emptyFunction.js.flow | 37 +++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 node_modules/fbjs/lib/emptyFunction.js.flow

(limited to 'node_modules/fbjs/lib/emptyFunction.js.flow')

diff --git a/node_modules/fbjs/lib/emptyFunction.js.flow b/node_modules/fbjs/lib/emptyFunction.js.flow
new file mode 100644
index 000000000..26076b07c
--- /dev/null
+++ b/node_modules/fbjs/lib/emptyFunction.js.flow
@@ -0,0 +1,37 @@
+/**
+ * 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.
+ *
+ * @providesModule emptyFunction
+ * @flow
+ */
+
+function makeEmptyFunction<T>(arg: T): (...args: Array<any>) => T {
+  return function () {
+    return arg;
+  };
+}
+
+/**
+ * This function accepts and discards inputs; it has no side effects. This is
+ * primarily useful idiomatically for overridable function endpoints which
+ * always need to be callable, since JS lacks a null-call idiom ala Cocoa.
+ */
+const emptyFunction: (...args: Array<any>) => void = function () {};
+
+emptyFunction.thatReturns = makeEmptyFunction;
+emptyFunction.thatReturnsFalse = makeEmptyFunction(false);
+emptyFunction.thatReturnsTrue = makeEmptyFunction(true);
+emptyFunction.thatReturnsNull = makeEmptyFunction(null);
+emptyFunction.thatReturnsThis = function () {
+  return this;
+};
+emptyFunction.thatReturnsArgument = function (arg) {
+  return arg;
+};
+
+module.exports = emptyFunction;
\ No newline at end of file
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