mirror of
https://github.com/musix-org/musix-oss
synced 2024-12-23 16:13:18 +00:00
1299 lines
32 KiB
JavaScript
1299 lines
32 KiB
JavaScript
!function(e){"object"==typeof exports?module.exports=e():"function"==typeof define&&define.amd?define(e):"undefined"!=typeof window?window.Promise=e():"undefined"!=typeof global?global.Promise=e():"undefined"!=typeof self&&(self.Promise=e())}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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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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/**
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* ES6 global Promise shim
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*/
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var unhandledRejections = require('../lib/decorators/unhandledRejection');
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var PromiseConstructor = unhandledRejections(require('../lib/Promise'));
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module.exports = typeof global != 'undefined' ? (global.Promise = PromiseConstructor)
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: typeof self != 'undefined' ? (self.Promise = PromiseConstructor)
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: PromiseConstructor;
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},{"../lib/Promise":2,"../lib/decorators/unhandledRejection":4}],2:[function(require,module,exports){
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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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(function(define) { 'use strict';
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define(function (require) {
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var makePromise = require('./makePromise');
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var Scheduler = require('./Scheduler');
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var async = require('./env').asap;
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return makePromise({
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scheduler: new Scheduler(async)
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});
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});
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})(typeof define === 'function' && define.amd ? define : function (factory) { module.exports = factory(require); });
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},{"./Scheduler":3,"./env":5,"./makePromise":7}],3:[function(require,module,exports){
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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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(function(define) { 'use strict';
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define(function() {
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// Credit to Twisol (https://github.com/Twisol) for suggesting
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// this type of extensible queue + trampoline approach for next-tick conflation.
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/**
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* Async task scheduler
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* @param {function} async function to schedule a single async function
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* @constructor
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*/
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function Scheduler(async) {
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this._async = async;
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this._running = false;
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this._queue = this;
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this._queueLen = 0;
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this._afterQueue = {};
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this._afterQueueLen = 0;
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var self = this;
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this.drain = function() {
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self._drain();
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};
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}
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/**
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* Enqueue a task
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* @param {{ run:function }} task
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*/
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Scheduler.prototype.enqueue = function(task) {
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this._queue[this._queueLen++] = task;
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this.run();
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};
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/**
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* Enqueue a task to run after the main task queue
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* @param {{ run:function }} task
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*/
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Scheduler.prototype.afterQueue = function(task) {
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this._afterQueue[this._afterQueueLen++] = task;
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this.run();
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};
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Scheduler.prototype.run = function() {
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if (!this._running) {
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this._running = true;
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this._async(this.drain);
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}
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};
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/**
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* Drain the handler queue entirely, and then the after queue
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*/
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Scheduler.prototype._drain = function() {
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var i = 0;
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for (; i < this._queueLen; ++i) {
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this._queue[i].run();
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this._queue[i] = void 0;
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}
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this._queueLen = 0;
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this._running = false;
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for (i = 0; i < this._afterQueueLen; ++i) {
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this._afterQueue[i].run();
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this._afterQueue[i] = void 0;
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}
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this._afterQueueLen = 0;
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};
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return Scheduler;
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});
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}(typeof define === 'function' && define.amd ? define : function(factory) { module.exports = factory(); }));
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},{}],4:[function(require,module,exports){
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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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(function(define) { 'use strict';
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define(function(require) {
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var setTimer = require('../env').setTimer;
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var format = require('../format');
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return function unhandledRejection(Promise) {
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var logError = noop;
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var logInfo = noop;
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var localConsole;
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if(typeof console !== 'undefined') {
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// Alias console to prevent things like uglify's drop_console option from
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// removing console.log/error. Unhandled rejections fall into the same
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// category as uncaught exceptions, and build tools shouldn't silence them.
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localConsole = console;
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logError = typeof localConsole.error !== 'undefined'
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? function (e) { localConsole.error(e); }
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: function (e) { localConsole.log(e); };
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logInfo = typeof localConsole.info !== 'undefined'
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? function (e) { localConsole.info(e); }
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: function (e) { localConsole.log(e); };
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}
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Promise.onPotentiallyUnhandledRejection = function(rejection) {
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enqueue(report, rejection);
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};
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Promise.onPotentiallyUnhandledRejectionHandled = function(rejection) {
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enqueue(unreport, rejection);
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};
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Promise.onFatalRejection = function(rejection) {
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enqueue(throwit, rejection.value);
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};
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var tasks = [];
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var reported = [];
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var running = null;
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function report(r) {
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if(!r.handled) {
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reported.push(r);
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logError('Potentially unhandled rejection [' + r.id + '] ' + format.formatError(r.value));
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}
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}
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function unreport(r) {
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var i = reported.indexOf(r);
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if(i >= 0) {
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reported.splice(i, 1);
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logInfo('Handled previous rejection [' + r.id + '] ' + format.formatObject(r.value));
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}
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}
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function enqueue(f, x) {
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tasks.push(f, x);
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if(running === null) {
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running = setTimer(flush, 0);
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}
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}
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function flush() {
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running = null;
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while(tasks.length > 0) {
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tasks.shift()(tasks.shift());
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}
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}
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return Promise;
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};
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function throwit(e) {
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throw e;
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}
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function noop() {}
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});
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}(typeof define === 'function' && define.amd ? define : function(factory) { module.exports = factory(require); }));
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},{"../env":5,"../format":6}],5:[function(require,module,exports){
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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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/*global process,document,setTimeout,clearTimeout,MutationObserver,WebKitMutationObserver*/
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(function(define) { 'use strict';
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define(function(require) {
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/*jshint maxcomplexity:6*/
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// Sniff "best" async scheduling option
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// Prefer process.nextTick or MutationObserver, then check for
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// setTimeout, and finally vertx, since its the only env that doesn't
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// have setTimeout
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var MutationObs;
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var capturedSetTimeout = typeof setTimeout !== 'undefined' && setTimeout;
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// Default env
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var setTimer = function(f, ms) { return setTimeout(f, ms); };
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var clearTimer = function(t) { return clearTimeout(t); };
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var asap = function (f) { return capturedSetTimeout(f, 0); };
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// Detect specific env
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if (isNode()) { // Node
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asap = function (f) { return process.nextTick(f); };
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} else if (MutationObs = hasMutationObserver()) { // Modern browser
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asap = initMutationObserver(MutationObs);
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} else if (!capturedSetTimeout) { // vert.x
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var vertxRequire = require;
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var vertx = vertxRequire('vertx');
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setTimer = function (f, ms) { return vertx.setTimer(ms, f); };
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clearTimer = vertx.cancelTimer;
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asap = vertx.runOnLoop || vertx.runOnContext;
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}
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return {
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setTimer: setTimer,
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clearTimer: clearTimer,
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asap: asap
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};
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function isNode () {
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return typeof process !== 'undefined' &&
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Object.prototype.toString.call(process) === '[object process]';
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}
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function hasMutationObserver () {
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return (typeof MutationObserver !== 'undefined' && MutationObserver) ||
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(typeof WebKitMutationObserver !== 'undefined' && WebKitMutationObserver);
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}
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function initMutationObserver(MutationObserver) {
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var scheduled;
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var node = document.createTextNode('');
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var o = new MutationObserver(run);
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o.observe(node, { characterData: true });
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function run() {
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var f = scheduled;
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scheduled = void 0;
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f();
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}
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var i = 0;
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return function (f) {
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scheduled = f;
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node.data = (i ^= 1);
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};
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}
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});
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}(typeof define === 'function' && define.amd ? define : function(factory) { module.exports = factory(require); }));
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},{}],6:[function(require,module,exports){
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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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(function(define) { 'use strict';
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define(function() {
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return {
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formatError: formatError,
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formatObject: formatObject,
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tryStringify: tryStringify
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};
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/**
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* Format an error into a string. If e is an Error and has a stack property,
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* it's returned. Otherwise, e is formatted using formatObject, with a
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* warning added about e not being a proper Error.
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* @param {*} e
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* @returns {String} formatted string, suitable for output to developers
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*/
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function formatError(e) {
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var s = typeof e === 'object' && e !== null && (e.stack || e.message) ? e.stack || e.message : formatObject(e);
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return e instanceof Error ? s : s + ' (WARNING: non-Error used)';
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}
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/**
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* Format an object, detecting "plain" objects and running them through
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* JSON.stringify if possible.
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* @param {Object} o
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* @returns {string}
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*/
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function formatObject(o) {
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var s = String(o);
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if(s === '[object Object]' && typeof JSON !== 'undefined') {
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s = tryStringify(o, s);
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}
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return s;
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}
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/**
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* Try to return the result of JSON.stringify(x). If that fails, return
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* defaultValue
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* @param {*} x
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* @param {*} defaultValue
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* @returns {String|*} JSON.stringify(x) or defaultValue
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*/
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function tryStringify(x, defaultValue) {
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try {
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return JSON.stringify(x);
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} catch(e) {
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return defaultValue;
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}
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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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},{}],7:[function(require,module,exports){
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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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(function(define) { 'use strict';
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define(function() {
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return function makePromise(environment) {
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var tasks = environment.scheduler;
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var emitRejection = initEmitRejection();
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var objectCreate = Object.create ||
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function(proto) {
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function Child() {}
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Child.prototype = proto;
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return new Child();
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};
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/**
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* Create a promise whose fate is determined by resolver
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* @constructor
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* @returns {Promise} promise
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* @name Promise
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*/
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function Promise(resolver, handler) {
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this._handler = resolver === Handler ? handler : init(resolver);
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}
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/**
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* Run the supplied resolver
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* @param resolver
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* @returns {Pending}
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*/
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function init(resolver) {
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var handler = new Pending();
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try {
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resolver(promiseResolve, promiseReject, promiseNotify);
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} catch (e) {
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promiseReject(e);
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}
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return handler;
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/**
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* Transition from pre-resolution state to post-resolution state, notifying
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* all listeners of the ultimate fulfillment or rejection
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* @param {*} x resolution value
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*/
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function promiseResolve (x) {
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handler.resolve(x);
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}
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/**
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* Reject this promise with reason, which will be used verbatim
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* @param {Error|*} reason rejection reason, strongly suggested
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* to be an Error type
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*/
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function promiseReject (reason) {
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handler.reject(reason);
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}
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/**
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* @deprecated
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* Issue a progress event, notifying all progress listeners
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* @param {*} x progress event payload to pass to all listeners
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*/
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function promiseNotify (x) {
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handler.notify(x);
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}
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}
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// Creation
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Promise.resolve = resolve;
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Promise.reject = reject;
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Promise.never = never;
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Promise._defer = defer;
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Promise._handler = getHandler;
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/**
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* Returns a trusted promise. If x is already a trusted promise, it is
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* returned, otherwise returns a new trusted Promise which follows x.
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* @param {*} x
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* @return {Promise} promise
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*/
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function resolve(x) {
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return isPromise(x) ? x
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: new Promise(Handler, new Async(getHandler(x)));
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}
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/**
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* Return a reject promise with x as its reason (x is used verbatim)
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* @param {*} x
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* @returns {Promise} rejected promise
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*/
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function reject(x) {
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return new Promise(Handler, new Async(new Rejected(x)));
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}
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/**
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* Return a promise that remains pending forever
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* @returns {Promise} forever-pending promise.
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*/
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function never() {
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return foreverPendingPromise; // Should be frozen
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}
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|
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/**
|
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* Creates an internal {promise, resolver} pair
|
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* @private
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* @returns {Promise}
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*/
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function defer() {
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return new Promise(Handler, new Pending());
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}
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|
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// Transformation and flow control
|
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|
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/**
|
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* Transform this promise's fulfillment value, returning a new Promise
|
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* for the transformed result. If the promise cannot be fulfilled, onRejected
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* is called with the reason. onProgress *may* be called with updates toward
|
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* this promise's fulfillment.
|
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* @param {function=} onFulfilled fulfillment handler
|
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* @param {function=} onRejected rejection handler
|
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* @param {function=} onProgress @deprecated progress handler
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* @return {Promise} new promise
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*/
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Promise.prototype.then = function(onFulfilled, onRejected, onProgress) {
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var parent = this._handler;
|
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var state = parent.join().state();
|
|
|
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if ((typeof onFulfilled !== 'function' && state > 0) ||
|
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(typeof onRejected !== 'function' && state < 0)) {
|
|
// Short circuit: value will not change, simply share handler
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return new this.constructor(Handler, parent);
|
|
}
|
|
|
|
var p = this._beget();
|
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var child = p._handler;
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|
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parent.chain(child, parent.receiver, onFulfilled, onRejected, onProgress);
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|
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return p;
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};
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|
|
/**
|
|
* If this promise cannot be fulfilled due to an error, call onRejected to
|
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* handle the error. Shortcut for .then(undefined, onRejected)
|
|
* @param {function?} onRejected
|
|
* @return {Promise}
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|
*/
|
|
Promise.prototype['catch'] = function(onRejected) {
|
|
return this.then(void 0, onRejected);
|
|
};
|
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|
|
/**
|
|
* Creates a new, pending promise of the same type as this promise
|
|
* @private
|
|
* @returns {Promise}
|
|
*/
|
|
Promise.prototype._beget = function() {
|
|
return begetFrom(this._handler, this.constructor);
|
|
};
|
|
|
|
function begetFrom(parent, Promise) {
|
|
var child = new Pending(parent.receiver, parent.join().context);
|
|
return new Promise(Handler, child);
|
|
}
|
|
|
|
// Array combinators
|
|
|
|
Promise.all = all;
|
|
Promise.race = race;
|
|
Promise._traverse = traverse;
|
|
|
|
/**
|
|
* Return a promise that will fulfill when all promises in the
|
|
* input array have fulfilled, or will reject when one of the
|
|
* promises rejects.
|
|
* @param {array} promises array of promises
|
|
* @returns {Promise} promise for array of fulfillment values
|
|
*/
|
|
function all(promises) {
|
|
return traverseWith(snd, null, promises);
|
|
}
|
|
|
|
/**
|
|
* Array<Promise<X>> -> Promise<Array<f(X)>>
|
|
* @private
|
|
* @param {function} f function to apply to each promise's value
|
|
* @param {Array} promises array of promises
|
|
* @returns {Promise} promise for transformed values
|
|
*/
|
|
function traverse(f, promises) {
|
|
return traverseWith(tryCatch2, f, promises);
|
|
}
|
|
|
|
function traverseWith(tryMap, f, promises) {
|
|
var handler = typeof f === 'function' ? mapAt : settleAt;
|
|
|
|
var resolver = new Pending();
|
|
var pending = promises.length >>> 0;
|
|
var results = new Array(pending);
|
|
|
|
for (var i = 0, x; i < promises.length && !resolver.resolved; ++i) {
|
|
x = promises[i];
|
|
|
|
if (x === void 0 && !(i in promises)) {
|
|
--pending;
|
|
continue;
|
|
}
|
|
|
|
traverseAt(promises, handler, i, x, resolver);
|
|
}
|
|
|
|
if(pending === 0) {
|
|
resolver.become(new Fulfilled(results));
|
|
}
|
|
|
|
return new Promise(Handler, resolver);
|
|
|
|
function mapAt(i, x, resolver) {
|
|
if(!resolver.resolved) {
|
|
traverseAt(promises, settleAt, i, tryMap(f, x, i), resolver);
|
|
}
|
|
}
|
|
|
|
function settleAt(i, x, resolver) {
|
|
results[i] = x;
|
|
if(--pending === 0) {
|
|
resolver.become(new Fulfilled(results));
|
|
}
|
|
}
|
|
}
|
|
|
|
function traverseAt(promises, handler, i, x, resolver) {
|
|
if (maybeThenable(x)) {
|
|
var h = getHandlerMaybeThenable(x);
|
|
var s = h.state();
|
|
|
|
if (s === 0) {
|
|
h.fold(handler, i, void 0, resolver);
|
|
} else if (s > 0) {
|
|
handler(i, h.value, resolver);
|
|
} else {
|
|
resolver.become(h);
|
|
visitRemaining(promises, i+1, h);
|
|
}
|
|
} else {
|
|
handler(i, x, resolver);
|
|
}
|
|
}
|
|
|
|
Promise._visitRemaining = visitRemaining;
|
|
function visitRemaining(promises, start, handler) {
|
|
for(var i=start; i<promises.length; ++i) {
|
|
markAsHandled(getHandler(promises[i]), handler);
|
|
}
|
|
}
|
|
|
|
function markAsHandled(h, handler) {
|
|
if(h === handler) {
|
|
return;
|
|
}
|
|
|
|
var s = h.state();
|
|
if(s === 0) {
|
|
h.visit(h, void 0, h._unreport);
|
|
} else if(s < 0) {
|
|
h._unreport();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fulfill-reject competitive race. Return a promise that will settle
|
|
* to the same state as the earliest input promise to settle.
|
|
*
|
|
* WARNING: The ES6 Promise spec requires that race()ing an empty array
|
|
* must return a promise that is pending forever. This implementation
|
|
* returns a singleton forever-pending promise, the same singleton that is
|
|
* returned by Promise.never(), thus can be checked with ===
|
|
*
|
|
* @param {array} promises array of promises to race
|
|
* @returns {Promise} if input is non-empty, a promise that will settle
|
|
* to the same outcome as the earliest input promise to settle. if empty
|
|
* is empty, returns a promise that will never settle.
|
|
*/
|
|
function race(promises) {
|
|
if(typeof promises !== 'object' || promises === null) {
|
|
return reject(new TypeError('non-iterable passed to race()'));
|
|
}
|
|
|
|
// Sigh, race([]) is untestable unless we return *something*
|
|
// that is recognizable without calling .then() on it.
|
|
return promises.length === 0 ? never()
|
|
: promises.length === 1 ? resolve(promises[0])
|
|
: runRace(promises);
|
|
}
|
|
|
|
function runRace(promises) {
|
|
var resolver = new Pending();
|
|
var i, x, h;
|
|
for(i=0; i<promises.length; ++i) {
|
|
x = promises[i];
|
|
if (x === void 0 && !(i in promises)) {
|
|
continue;
|
|
}
|
|
|
|
h = getHandler(x);
|
|
if(h.state() !== 0) {
|
|
resolver.become(h);
|
|
visitRemaining(promises, i+1, h);
|
|
break;
|
|
} else {
|
|
h.visit(resolver, resolver.resolve, resolver.reject);
|
|
}
|
|
}
|
|
return new Promise(Handler, resolver);
|
|
}
|
|
|
|
// Promise internals
|
|
// Below this, everything is @private
|
|
|
|
/**
|
|
* Get an appropriate handler for x, without checking for cycles
|
|
* @param {*} x
|
|
* @returns {object} handler
|
|
*/
|
|
function getHandler(x) {
|
|
if(isPromise(x)) {
|
|
return x._handler.join();
|
|
}
|
|
return maybeThenable(x) ? getHandlerUntrusted(x) : new Fulfilled(x);
|
|
}
|
|
|
|
/**
|
|
* Get a handler for thenable x.
|
|
* NOTE: You must only call this if maybeThenable(x) == true
|
|
* @param {object|function|Promise} x
|
|
* @returns {object} handler
|
|
*/
|
|
function getHandlerMaybeThenable(x) {
|
|
return isPromise(x) ? x._handler.join() : getHandlerUntrusted(x);
|
|
}
|
|
|
|
/**
|
|
* Get a handler for potentially untrusted thenable x
|
|
* @param {*} x
|
|
* @returns {object} handler
|
|
*/
|
|
function getHandlerUntrusted(x) {
|
|
try {
|
|
var untrustedThen = x.then;
|
|
return typeof untrustedThen === 'function'
|
|
? new Thenable(untrustedThen, x)
|
|
: new Fulfilled(x);
|
|
} catch(e) {
|
|
return new Rejected(e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handler for a promise that is pending forever
|
|
* @constructor
|
|
*/
|
|
function Handler() {}
|
|
|
|
Handler.prototype.when
|
|
= Handler.prototype.become
|
|
= Handler.prototype.notify // deprecated
|
|
= Handler.prototype.fail
|
|
= Handler.prototype._unreport
|
|
= Handler.prototype._report
|
|
= noop;
|
|
|
|
Handler.prototype._state = 0;
|
|
|
|
Handler.prototype.state = function() {
|
|
return this._state;
|
|
};
|
|
|
|
/**
|
|
* Recursively collapse handler chain to find the handler
|
|
* nearest to the fully resolved value.
|
|
* @returns {object} handler nearest the fully resolved value
|
|
*/
|
|
Handler.prototype.join = function() {
|
|
var h = this;
|
|
while(h.handler !== void 0) {
|
|
h = h.handler;
|
|
}
|
|
return h;
|
|
};
|
|
|
|
Handler.prototype.chain = function(to, receiver, fulfilled, rejected, progress) {
|
|
this.when({
|
|
resolver: to,
|
|
receiver: receiver,
|
|
fulfilled: fulfilled,
|
|
rejected: rejected,
|
|
progress: progress
|
|
});
|
|
};
|
|
|
|
Handler.prototype.visit = function(receiver, fulfilled, rejected, progress) {
|
|
this.chain(failIfRejected, receiver, fulfilled, rejected, progress);
|
|
};
|
|
|
|
Handler.prototype.fold = function(f, z, c, to) {
|
|
this.when(new Fold(f, z, c, to));
|
|
};
|
|
|
|
/**
|
|
* Handler that invokes fail() on any handler it becomes
|
|
* @constructor
|
|
*/
|
|
function FailIfRejected() {}
|
|
|
|
inherit(Handler, FailIfRejected);
|
|
|
|
FailIfRejected.prototype.become = function(h) {
|
|
h.fail();
|
|
};
|
|
|
|
var failIfRejected = new FailIfRejected();
|
|
|
|
/**
|
|
* Handler that manages a queue of consumers waiting on a pending promise
|
|
* @constructor
|
|
*/
|
|
function Pending(receiver, inheritedContext) {
|
|
Promise.createContext(this, inheritedContext);
|
|
|
|
this.consumers = void 0;
|
|
this.receiver = receiver;
|
|
this.handler = void 0;
|
|
this.resolved = false;
|
|
}
|
|
|
|
inherit(Handler, Pending);
|
|
|
|
Pending.prototype._state = 0;
|
|
|
|
Pending.prototype.resolve = function(x) {
|
|
this.become(getHandler(x));
|
|
};
|
|
|
|
Pending.prototype.reject = function(x) {
|
|
if(this.resolved) {
|
|
return;
|
|
}
|
|
|
|
this.become(new Rejected(x));
|
|
};
|
|
|
|
Pending.prototype.join = function() {
|
|
if (!this.resolved) {
|
|
return this;
|
|
}
|
|
|
|
var h = this;
|
|
|
|
while (h.handler !== void 0) {
|
|
h = h.handler;
|
|
if (h === this) {
|
|
return this.handler = cycle();
|
|
}
|
|
}
|
|
|
|
return h;
|
|
};
|
|
|
|
Pending.prototype.run = function() {
|
|
var q = this.consumers;
|
|
var handler = this.handler;
|
|
this.handler = this.handler.join();
|
|
this.consumers = void 0;
|
|
|
|
for (var i = 0; i < q.length; ++i) {
|
|
handler.when(q[i]);
|
|
}
|
|
};
|
|
|
|
Pending.prototype.become = function(handler) {
|
|
if(this.resolved) {
|
|
return;
|
|
}
|
|
|
|
this.resolved = true;
|
|
this.handler = handler;
|
|
if(this.consumers !== void 0) {
|
|
tasks.enqueue(this);
|
|
}
|
|
|
|
if(this.context !== void 0) {
|
|
handler._report(this.context);
|
|
}
|
|
};
|
|
|
|
Pending.prototype.when = function(continuation) {
|
|
if(this.resolved) {
|
|
tasks.enqueue(new ContinuationTask(continuation, this.handler));
|
|
} else {
|
|
if(this.consumers === void 0) {
|
|
this.consumers = [continuation];
|
|
} else {
|
|
this.consumers.push(continuation);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @deprecated
|
|
*/
|
|
Pending.prototype.notify = function(x) {
|
|
if(!this.resolved) {
|
|
tasks.enqueue(new ProgressTask(x, this));
|
|
}
|
|
};
|
|
|
|
Pending.prototype.fail = function(context) {
|
|
var c = typeof context === 'undefined' ? this.context : context;
|
|
this.resolved && this.handler.join().fail(c);
|
|
};
|
|
|
|
Pending.prototype._report = function(context) {
|
|
this.resolved && this.handler.join()._report(context);
|
|
};
|
|
|
|
Pending.prototype._unreport = function() {
|
|
this.resolved && this.handler.join()._unreport();
|
|
};
|
|
|
|
/**
|
|
* Wrap another handler and force it into a future stack
|
|
* @param {object} handler
|
|
* @constructor
|
|
*/
|
|
function Async(handler) {
|
|
this.handler = handler;
|
|
}
|
|
|
|
inherit(Handler, Async);
|
|
|
|
Async.prototype.when = function(continuation) {
|
|
tasks.enqueue(new ContinuationTask(continuation, this));
|
|
};
|
|
|
|
Async.prototype._report = function(context) {
|
|
this.join()._report(context);
|
|
};
|
|
|
|
Async.prototype._unreport = function() {
|
|
this.join()._unreport();
|
|
};
|
|
|
|
/**
|
|
* Handler that wraps an untrusted thenable and assimilates it in a future stack
|
|
* @param {function} then
|
|
* @param {{then: function}} thenable
|
|
* @constructor
|
|
*/
|
|
function Thenable(then, thenable) {
|
|
Pending.call(this);
|
|
tasks.enqueue(new AssimilateTask(then, thenable, this));
|
|
}
|
|
|
|
inherit(Pending, Thenable);
|
|
|
|
/**
|
|
* Handler for a fulfilled promise
|
|
* @param {*} x fulfillment value
|
|
* @constructor
|
|
*/
|
|
function Fulfilled(x) {
|
|
Promise.createContext(this);
|
|
this.value = x;
|
|
}
|
|
|
|
inherit(Handler, Fulfilled);
|
|
|
|
Fulfilled.prototype._state = 1;
|
|
|
|
Fulfilled.prototype.fold = function(f, z, c, to) {
|
|
runContinuation3(f, z, this, c, to);
|
|
};
|
|
|
|
Fulfilled.prototype.when = function(cont) {
|
|
runContinuation1(cont.fulfilled, this, cont.receiver, cont.resolver);
|
|
};
|
|
|
|
var errorId = 0;
|
|
|
|
/**
|
|
* Handler for a rejected promise
|
|
* @param {*} x rejection reason
|
|
* @constructor
|
|
*/
|
|
function Rejected(x) {
|
|
Promise.createContext(this);
|
|
|
|
this.id = ++errorId;
|
|
this.value = x;
|
|
this.handled = false;
|
|
this.reported = false;
|
|
|
|
this._report();
|
|
}
|
|
|
|
inherit(Handler, Rejected);
|
|
|
|
Rejected.prototype._state = -1;
|
|
|
|
Rejected.prototype.fold = function(f, z, c, to) {
|
|
to.become(this);
|
|
};
|
|
|
|
Rejected.prototype.when = function(cont) {
|
|
if(typeof cont.rejected === 'function') {
|
|
this._unreport();
|
|
}
|
|
runContinuation1(cont.rejected, this, cont.receiver, cont.resolver);
|
|
};
|
|
|
|
Rejected.prototype._report = function(context) {
|
|
tasks.afterQueue(new ReportTask(this, context));
|
|
};
|
|
|
|
Rejected.prototype._unreport = function() {
|
|
if(this.handled) {
|
|
return;
|
|
}
|
|
this.handled = true;
|
|
tasks.afterQueue(new UnreportTask(this));
|
|
};
|
|
|
|
Rejected.prototype.fail = function(context) {
|
|
this.reported = true;
|
|
emitRejection('unhandledRejection', this);
|
|
Promise.onFatalRejection(this, context === void 0 ? this.context : context);
|
|
};
|
|
|
|
function ReportTask(rejection, context) {
|
|
this.rejection = rejection;
|
|
this.context = context;
|
|
}
|
|
|
|
ReportTask.prototype.run = function() {
|
|
if(!this.rejection.handled && !this.rejection.reported) {
|
|
this.rejection.reported = true;
|
|
emitRejection('unhandledRejection', this.rejection) ||
|
|
Promise.onPotentiallyUnhandledRejection(this.rejection, this.context);
|
|
}
|
|
};
|
|
|
|
function UnreportTask(rejection) {
|
|
this.rejection = rejection;
|
|
}
|
|
|
|
UnreportTask.prototype.run = function() {
|
|
if(this.rejection.reported) {
|
|
emitRejection('rejectionHandled', this.rejection) ||
|
|
Promise.onPotentiallyUnhandledRejectionHandled(this.rejection);
|
|
}
|
|
};
|
|
|
|
// Unhandled rejection hooks
|
|
// By default, everything is a noop
|
|
|
|
Promise.createContext
|
|
= Promise.enterContext
|
|
= Promise.exitContext
|
|
= Promise.onPotentiallyUnhandledRejection
|
|
= Promise.onPotentiallyUnhandledRejectionHandled
|
|
= Promise.onFatalRejection
|
|
= noop;
|
|
|
|
// Errors and singletons
|
|
|
|
var foreverPendingHandler = new Handler();
|
|
var foreverPendingPromise = new Promise(Handler, foreverPendingHandler);
|
|
|
|
function cycle() {
|
|
return new Rejected(new TypeError('Promise cycle'));
|
|
}
|
|
|
|
// Task runners
|
|
|
|
/**
|
|
* Run a single consumer
|
|
* @constructor
|
|
*/
|
|
function ContinuationTask(continuation, handler) {
|
|
this.continuation = continuation;
|
|
this.handler = handler;
|
|
}
|
|
|
|
ContinuationTask.prototype.run = function() {
|
|
this.handler.join().when(this.continuation);
|
|
};
|
|
|
|
/**
|
|
* Run a queue of progress handlers
|
|
* @constructor
|
|
*/
|
|
function ProgressTask(value, handler) {
|
|
this.handler = handler;
|
|
this.value = value;
|
|
}
|
|
|
|
ProgressTask.prototype.run = function() {
|
|
var q = this.handler.consumers;
|
|
if(q === void 0) {
|
|
return;
|
|
}
|
|
|
|
for (var c, i = 0; i < q.length; ++i) {
|
|
c = q[i];
|
|
runNotify(c.progress, this.value, this.handler, c.receiver, c.resolver);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Assimilate a thenable, sending it's value to resolver
|
|
* @param {function} then
|
|
* @param {object|function} thenable
|
|
* @param {object} resolver
|
|
* @constructor
|
|
*/
|
|
function AssimilateTask(then, thenable, resolver) {
|
|
this._then = then;
|
|
this.thenable = thenable;
|
|
this.resolver = resolver;
|
|
}
|
|
|
|
AssimilateTask.prototype.run = function() {
|
|
var h = this.resolver;
|
|
tryAssimilate(this._then, this.thenable, _resolve, _reject, _notify);
|
|
|
|
function _resolve(x) { h.resolve(x); }
|
|
function _reject(x) { h.reject(x); }
|
|
function _notify(x) { h.notify(x); }
|
|
};
|
|
|
|
function tryAssimilate(then, thenable, resolve, reject, notify) {
|
|
try {
|
|
then.call(thenable, resolve, reject, notify);
|
|
} catch (e) {
|
|
reject(e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fold a handler value with z
|
|
* @constructor
|
|
*/
|
|
function Fold(f, z, c, to) {
|
|
this.f = f; this.z = z; this.c = c; this.to = to;
|
|
this.resolver = failIfRejected;
|
|
this.receiver = this;
|
|
}
|
|
|
|
Fold.prototype.fulfilled = function(x) {
|
|
this.f.call(this.c, this.z, x, this.to);
|
|
};
|
|
|
|
Fold.prototype.rejected = function(x) {
|
|
this.to.reject(x);
|
|
};
|
|
|
|
Fold.prototype.progress = function(x) {
|
|
this.to.notify(x);
|
|
};
|
|
|
|
// Other helpers
|
|
|
|
/**
|
|
* @param {*} x
|
|
* @returns {boolean} true iff x is a trusted Promise
|
|
*/
|
|
function isPromise(x) {
|
|
return x instanceof Promise;
|
|
}
|
|
|
|
/**
|
|
* Test just enough to rule out primitives, in order to take faster
|
|
* paths in some code
|
|
* @param {*} x
|
|
* @returns {boolean} false iff x is guaranteed *not* to be a thenable
|
|
*/
|
|
function maybeThenable(x) {
|
|
return (typeof x === 'object' || typeof x === 'function') && x !== null;
|
|
}
|
|
|
|
function runContinuation1(f, h, receiver, next) {
|
|
if(typeof f !== 'function') {
|
|
return next.become(h);
|
|
}
|
|
|
|
Promise.enterContext(h);
|
|
tryCatchReject(f, h.value, receiver, next);
|
|
Promise.exitContext();
|
|
}
|
|
|
|
function runContinuation3(f, x, h, receiver, next) {
|
|
if(typeof f !== 'function') {
|
|
return next.become(h);
|
|
}
|
|
|
|
Promise.enterContext(h);
|
|
tryCatchReject3(f, x, h.value, receiver, next);
|
|
Promise.exitContext();
|
|
}
|
|
|
|
/**
|
|
* @deprecated
|
|
*/
|
|
function runNotify(f, x, h, receiver, next) {
|
|
if(typeof f !== 'function') {
|
|
return next.notify(x);
|
|
}
|
|
|
|
Promise.enterContext(h);
|
|
tryCatchReturn(f, x, receiver, next);
|
|
Promise.exitContext();
|
|
}
|
|
|
|
function tryCatch2(f, a, b) {
|
|
try {
|
|
return f(a, b);
|
|
} catch(e) {
|
|
return reject(e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return f.call(thisArg, x), or if it throws return a rejected promise for
|
|
* the thrown exception
|
|
*/
|
|
function tryCatchReject(f, x, thisArg, next) {
|
|
try {
|
|
next.become(getHandler(f.call(thisArg, x)));
|
|
} catch(e) {
|
|
next.become(new Rejected(e));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Same as above, but includes the extra argument parameter.
|
|
*/
|
|
function tryCatchReject3(f, x, y, thisArg, next) {
|
|
try {
|
|
f.call(thisArg, x, y, next);
|
|
} catch(e) {
|
|
next.become(new Rejected(e));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @deprecated
|
|
* Return f.call(thisArg, x), or if it throws, *return* the exception
|
|
*/
|
|
function tryCatchReturn(f, x, thisArg, next) {
|
|
try {
|
|
next.notify(f.call(thisArg, x));
|
|
} catch(e) {
|
|
next.notify(e);
|
|
}
|
|
}
|
|
|
|
function inherit(Parent, Child) {
|
|
Child.prototype = objectCreate(Parent.prototype);
|
|
Child.prototype.constructor = Child;
|
|
}
|
|
|
|
function snd(x, y) {
|
|
return y;
|
|
}
|
|
|
|
function noop() {}
|
|
|
|
function hasCustomEvent() {
|
|
if(typeof CustomEvent === 'function') {
|
|
try {
|
|
var ev = new CustomEvent('unhandledRejection');
|
|
return ev instanceof CustomEvent;
|
|
} catch (ignoredException) {}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function hasInternetExplorerCustomEvent() {
|
|
if(typeof document !== 'undefined' && typeof document.createEvent === 'function') {
|
|
try {
|
|
// Try to create one event to make sure it's supported
|
|
var ev = document.createEvent('CustomEvent');
|
|
ev.initCustomEvent('eventType', false, true, {});
|
|
return true;
|
|
} catch (ignoredException) {}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function initEmitRejection() {
|
|
/*global process, self, CustomEvent*/
|
|
if(typeof process !== 'undefined' && process !== null
|
|
&& typeof process.emit === 'function') {
|
|
// Returning falsy here means to call the default
|
|
// onPotentiallyUnhandledRejection API. This is safe even in
|
|
// browserify since process.emit always returns falsy in browserify:
|
|
// https://github.com/defunctzombie/node-process/blob/master/browser.js#L40-L46
|
|
return function(type, rejection) {
|
|
return type === 'unhandledRejection'
|
|
? process.emit(type, rejection.value, rejection)
|
|
: process.emit(type, rejection);
|
|
};
|
|
} else if(typeof self !== 'undefined' && hasCustomEvent()) {
|
|
return (function (self, CustomEvent) {
|
|
return function (type, rejection) {
|
|
var ev = new CustomEvent(type, {
|
|
detail: {
|
|
reason: rejection.value,
|
|
key: rejection
|
|
},
|
|
bubbles: false,
|
|
cancelable: true
|
|
});
|
|
|
|
return !self.dispatchEvent(ev);
|
|
};
|
|
}(self, CustomEvent));
|
|
} else if(typeof self !== 'undefined' && hasInternetExplorerCustomEvent()) {
|
|
return (function(self, document) {
|
|
return function(type, rejection) {
|
|
var ev = document.createEvent('CustomEvent');
|
|
ev.initCustomEvent(type, false, true, {
|
|
reason: rejection.value,
|
|
key: rejection
|
|
});
|
|
|
|
return !self.dispatchEvent(ev);
|
|
};
|
|
}(self, document));
|
|
}
|
|
|
|
return noop;
|
|
}
|
|
|
|
return Promise;
|
|
};
|
|
});
|
|
}(typeof define === 'function' && define.amd ? define : function(factory) { module.exports = factory(); }));
|
|
|
|
},{}]},{},[1])
|
|
//# sourceMappingURL=Promise.js.map
|
|
(1)
|
|
});
|
|
; |