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JavaScript

6 years ago
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.co = f()}})(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);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.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){
var PinkiePromise = require('pinkie-promise');
/**
* slice() reference.
*/
var slice = Array.prototype.slice;
/**
* Expose `co`.
*/
module.exports = co['default'] = co.co = co;
/**
* Wrap the given generator `fn` into a
* function that returns a promise.
* This is a separate function so that
* every `co()` call doesn't create a new,
* unnecessary closure.
*
* @param {GeneratorFunction} fn
* @return {Function}
* @api public
*/
co.wrap = function (fn) {
createPromise.__generatorFunction__ = fn;
return createPromise;
function createPromise() {
return co.call(this, fn.apply(this, arguments));
}
};
/**
* Execute the generator function or a generator
* and return a promise.
*
* @param {Function} fn
* @return {Promise}
* @api public
*/
function co(gen) {
var ctx = this;
var args = slice.call(arguments, 1)
// we wrap everything in a promise to avoid promise chaining,
// which leads to memory leak errors.
// see https://github.com/tj/co/issues/180
return new PinkiePromise(function(resolve, reject) {
if (typeof gen === 'function') gen = gen.apply(ctx, args);
if (!gen || typeof gen.next !== 'function') return resolve(gen);
onFulfilled();
/**
* @param {Mixed} res
* @return {Promise}
* @api private
*/
function onFulfilled(res) {
var ret;
try {
ret = gen.next(res);
} catch (e) {
return reject(e);
}
next(ret);
}
/**
* @param {Error} err
* @return {Promise}
* @api private
*/
function onRejected(err) {
var ret;
try {
ret = gen.throw(err);
} catch (e) {
return reject(e);
}
next(ret);
}
/**
* Get the next value in the generator,
* return a promise.
*
* @param {Object} ret
* @return {Promise}
* @api private
*/
function next(ret) {
if (ret.done) return resolve(ret.value);
var value = toPromise.call(ctx, ret.value);
if (value && isPromise(value)) return value.then(onFulfilled, onRejected);
return onRejected(new TypeError('You may only yield a function, promise, generator, array, or object, '
+ 'but the following object was passed: "' + String(ret.value) + '"'));
}
});
}
/**
* Convert a `yield`ed value into a promise.
*
* @param {Mixed} obj
* @return {Promise}
* @api private
*/
function toPromise(obj) {
if (!obj) return obj;
if (isPromise(obj)) return obj;
if (isGeneratorFunction(obj) || isGenerator(obj)) return co.call(this, obj);
if ('function' == typeof obj) return thunkToPromise.call(this, obj);
if (Array.isArray(obj)) return arrayToPromise.call(this, obj);
if (isObject(obj)) return objectToPromise.call(this, obj);
return obj;
}
/**
* Convert a thunk to a promise.
*
* @param {Function}
* @return {Promise}
* @api private
*/
function thunkToPromise(fn) {
var ctx = this;
return new PinkiePromise(function (resolve, reject) {
fn.call(ctx, function (err, res) {
if (err) return reject(err);
if (arguments.length > 2) res = slice.call(arguments, 1);
resolve(res);
});
});
}
/**
* Convert an array of "yieldables" to a promise.
* Uses `Promise.all()` internally.
*
* @param {Array} obj
* @return {Promise}
* @api private
*/
function arrayToPromise(obj) {
return Promise.all(obj.map(toPromise, this));
}
/**
* Convert an object of "yieldables" to a promise.
* Uses `Promise.all()` internally.
*
* @param {Object} obj
* @return {Promise}
* @api private
*/
function objectToPromise(obj){
var results = new obj.constructor();
var keys = Object.keys(obj);
var promises = [];
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
var promise = toPromise.call(this, obj[key]);
if (promise && isPromise(promise)) defer(promise, key);
else results[key] = obj[key];
}
return PinkiePromise.all(promises).then(function () {
return results;
});
function defer(promise, key) {
// predefine the key in the result
results[key] = undefined;
promises.push(promise.then(function (res) {
results[key] = res;
}));
}
}
/**
* Check if `obj` is a promise.
*
* @param {Object} obj
* @return {Boolean}
* @api private
*/
function isPromise(obj) {
return 'function' == typeof obj.then;
}
/**
* Check if `obj` is a generator.
*
* @param {Mixed} obj
* @return {Boolean}
* @api private
*/
function isGenerator(obj) {
return 'function' == typeof obj.next && 'function' == typeof obj.throw;
}
/**
* Check if `obj` is a generator function.
*
* @param {Mixed} obj
* @return {Boolean}
* @api private
*/
function isGeneratorFunction(obj) {
var constructor = obj.constructor;
if (!constructor) return false;
if ('GeneratorFunction' === constructor.name || 'GeneratorFunction' === constructor.displayName) return true;
return isGenerator(constructor.prototype);
}
/**
* Check for plain object.
*
* @param {Mixed} val
* @return {Boolean}
* @api private
*/
function isObject(val) {
return Object == val.constructor;
}
},{"pinkie-promise":2}],2:[function(require,module,exports){
(function (global){
'use strict';
module.exports = global.Promise || require('pinkie');
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"pinkie":3}],3:[function(require,module,exports){
'use strict';
var PENDING = 'pending';
var SETTLED = 'settled';
var FULFILLED = 'fulfilled';
var REJECTED = 'rejected';
var NOOP = function () {};
// async calls
var asyncSetTimer = typeof setImmediate !== 'undefined' ? setImmediate : setTimeout;
var asyncQueue = [];
var asyncTimer;
function asyncFlush() {
// run promise callbacks
for (var i = 0; i < asyncQueue.length; i++) {
asyncQueue[i][0](asyncQueue[i][1]);
}
// reset async asyncQueue
asyncQueue = [];
asyncTimer = false;
}
function asyncCall(callback, arg) {
asyncQueue.push([callback, arg]);
if (!asyncTimer) {
asyncTimer = true;
asyncSetTimer(asyncFlush, 0);
}
}
function invokeResolver(resolver, promise) {
function resolvePromise(value) {
resolve(promise, value);
}
function rejectPromise(reason) {
reject(promise, reason);
}
try {
resolver(resolvePromise, rejectPromise);
} catch (e) {
rejectPromise(e);
}
}
function invokeCallback(subscriber) {
var owner = subscriber.owner;
var settled = owner._state;
var value = owner._data;
var callback = subscriber[settled];
var promise = subscriber.then;
if (typeof callback === 'function') {
settled = FULFILLED;
try {
value = callback(value);
} catch (e) {
reject(promise, e);
}
}
if (!handleThenable(promise, value)) {
if (settled === FULFILLED) {
resolve(promise, value);
}
if (settled === REJECTED) {
reject(promise, value);
}
}
}
function handleThenable(promise, value) {
var resolved;
try {
if (promise === value) {
throw new TypeError('A promises callback cannot return that same promise.');
}
if (value && (typeof value === 'function' || typeof value === 'object')) {
var then = value.then; // then should be retrived only once
if (typeof then === 'function') {
then.call(value, function (val) {
if (!resolved) {
resolved = true;
if (value !== val) {
resolve(promise, val);
} else {
fulfill(promise, val);
}
}
}, function (reason) {
if (!resolved) {
resolved = true;
reject(promise, reason);
}
});
return true;
}
}
} catch (e) {
if (!resolved) {
reject(promise, e);
}
return true;
}
return false;
}
function resolve(promise, value) {
if (promise === value || !handleThenable(promise, value)) {
fulfill(promise, value);
}
}
function fulfill(promise, value) {
if (promise._state === PENDING) {
promise._state = SETTLED;
promise._data = value;
asyncCall(publishFulfillment, promise);
}
}
function reject(promise, reason) {
if (promise._state === PENDING) {
promise._state = SETTLED;
promise._data = reason;
asyncCall(publishRejection, promise);
}
}
function publish(promise) {
promise._then = promise._then.forEach(invokeCallback);
}
function publishFulfillment(promise) {
promise._state = FULFILLED;
publish(promise);
}
function publishRejection(promise) {
promise._state = REJECTED;
publish(promise);
}
/**
* @class
*/
function Promise(resolver) {
if (typeof resolver !== 'function') {
throw new TypeError('Promise resolver ' + resolver + ' is not a function');
}
if (this instanceof Promise === false) {
throw new TypeError('Failed to construct \'Promise\': Please use the \'new\' operator, this object constructor cannot be called as a function.');
}
this._then = [];
invokeResolver(resolver, this);
}
Promise.prototype = {
constructor: Promise,
_state: PENDING,
_then: null,
_data: undefined,
then: function (onFulfillment, onRejection) {
var subscriber = {
owner: this,
then: new this.constructor(NOOP),
fulfilled: onFulfillment,
rejected: onRejection
};
if (this._state === FULFILLED || this._state === REJECTED) {
// already resolved, call callback async
asyncCall(invokeCallback, subscriber);
} else {
// subscribe
this._then.push(subscriber);
}
return subscriber.then;
},
'catch': function (onRejection) {
return this.then(null, onRejection);
}
};
Promise.all = function (promises) {
if (!Array.isArray(promises)) {
throw new TypeError('You must pass an array to Promise.all().');
}
return new Promise(function (resolve, reject) {
var results = [];
var remaining = 0;
function resolver(index) {
remaining++;
return function (value) {
results[index] = value;
if (!--remaining) {
resolve(results);
}
};
}
for (var i = 0, promise; i < promises.length; i++) {
promise = promises[i];
if (promise && typeof promise.then === 'function') {
promise.then(resolver(i), reject);
} else {
results[i] = promise;
}
}
if (!remaining) {
resolve(results);
}
});
};
Promise.race = function (promises) {
if (!Array.isArray(promises)) {
throw new TypeError('You must pass an array to Promise.race().');
}
return new Promise(function (resolve, reject) {
for (var i = 0, promise; i < promises.length; i++) {
promise = promises[i];
if (promise && typeof promise.then === 'function') {
promise.then(resolve, reject);
} else {
resolve(promise);
}
}
});
};
Promise.resolve = function (value) {
if (value && typeof value === 'object' && value.constructor === Promise) {
return value;
}
return new Promise(function (resolve) {
resolve(value);
});
};
Promise.reject = function (reason) {
return new Promise(function (resolve, reject) {
reject(reason);
});
};
module.exports = Promise;
},{}]},{},[1])(1)
});