28 lines
699 B
JavaScript
28 lines
699 B
JavaScript
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/** @license MIT License (c) copyright 2010-2014 original author or authors */
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/** @author Brian Cavalier */
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/** @author John Hann */
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/** @author Jeff Escalante */
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(function(define) { 'use strict';
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define(function() {
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return function fold(Promise) {
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Promise.prototype.fold = function(f, z) {
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var promise = this._beget();
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this._handler.fold(function(z, x, to) {
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Promise._handler(z).fold(function(x, z, to) {
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to.resolve(f.call(this, z, x));
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}, x, this, to);
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}, z, promise._handler.receiver, promise._handler);
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return promise;
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};
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return Promise;
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};
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});
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}(typeof define === 'function' && define.amd ? define : function(factory) { module.exports = factory(); }));
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