WIP - add extractor, generate snippet_data

node_modules/fbjs/lib/emptyFunction.js.flow

@@ -0,0 +1,37 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @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;