--- /dev/null
+"use strict";
+var util = require("./util.js");
+var isPrimitive = util.isPrimitive;
+
+module.exports = function(Promise) {
+var returner = function () {
+ return this;
+};
+var thrower = function () {
+ throw this;
+};
+var returnUndefined = function() {};
+var throwUndefined = function() {
+ throw undefined;
+};
+
+var wrapper = function (value, action) {
+ if (action === 1) {
+ return function () {
+ throw value;
+ };
+ } else if (action === 2) {
+ return function () {
+ return value;
+ };
+ }
+};
+
+
+Promise.prototype["return"] =
+Promise.prototype.thenReturn = function (value) {
+ if (value === undefined) return this.then(returnUndefined);
+
+ if (isPrimitive(value)) {
+ return this._then(
+ wrapper(value, 2),
+ undefined,
+ undefined,
+ undefined,
+ undefined
+ );
+ } else if (value instanceof Promise) {
+ value._ignoreRejections();
+ }
+ return this._then(returner, undefined, undefined, value, undefined);
+};
+
+Promise.prototype["throw"] =
+Promise.prototype.thenThrow = function (reason) {
+ if (reason === undefined) return this.then(throwUndefined);
+
+ if (isPrimitive(reason)) {
+ return this._then(
+ wrapper(reason, 1),
+ undefined,
+ undefined,
+ undefined,
+ undefined
+ );
+ }
+ return this._then(thrower, undefined, undefined, reason, undefined);
+};
+};