166 lines
No EOL
7 KiB
JavaScript
166 lines
No EOL
7 KiB
JavaScript
! function(name, context, definition) {
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context[name] = definition(), "undefined" != typeof module && module.exports ? module.exports = context[name] : "function" == typeof define && define.amd && define(function() {
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return context[name]
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})
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}("Promise", "undefined" != typeof global ? global : this, function() {
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"use strict";
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function schedule(fn, self) {
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scheduling_queue.add(fn, self), cycle || (cycle = timer(scheduling_queue.drain))
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}
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function isThenable(o) {
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var _then, o_type = typeof o;
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return null == o || "object" != o_type && "function" != o_type || (_then = o.then), "function" == typeof _then && _then
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}
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function notify() {
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for (var i = 0; i < this.chain.length; i++) notifyIsolated(this, 1 === this.state ? this.chain[i].success : this.chain[i].failure, this.chain[i]);
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this.chain.length = 0
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}
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function notifyIsolated(self, cb, chain) {
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var ret, _then;
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try {
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!1 === cb ? chain.reject(self.msg) : (ret = !0 === cb ? self.msg : cb.call(void 0, self.msg), ret === chain.promise ? chain.reject(TypeError("Promise-chain cycle")) : (_then = isThenable(ret)) ? _then.call(ret, chain.resolve, chain.reject) : chain.resolve(ret))
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} catch (err) {
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chain.reject(err)
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}
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}
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function resolve(msg) {
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var _then, self = this;
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if (!self.triggered) {
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self.triggered = !0, self.def && (self = self.def);
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try {
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(_then = isThenable(msg)) ? schedule(function() {
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var def_wrapper = new MakeDefWrapper(self);
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try {
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_then.call(msg, function() {
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resolve.apply(def_wrapper, arguments)
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}, function() {
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reject.apply(def_wrapper, arguments)
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})
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} catch (err) {
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reject.call(def_wrapper, err)
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}
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}): (self.msg = msg, self.state = 1, self.chain.length > 0 && schedule(notify, self))
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} catch (err) {
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reject.call(new MakeDefWrapper(self), err)
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}
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}
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}
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function reject(msg) {
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var self = this;
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self.triggered || (self.triggered = !0, self.def && (self = self.def), self.msg = msg, self.state = 2, self.chain.length > 0 && schedule(notify, self))
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}
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function iteratePromises(Constructor, arr, resolver, rejecter) {
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for (var idx = 0; idx < arr.length; idx++) ! function(idx) {
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Constructor.resolve(arr[idx]).then(function(msg) {
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resolver(idx, msg)
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}, rejecter)
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}(idx)
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}
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function MakeDefWrapper(self) {
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this.def = self, this.triggered = !1
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}
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function MakeDef(self) {
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this.promise = self, this.state = 0, this.triggered = !1, this.chain = [], this.msg = void 0
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}
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function Promise(executor) {
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if ("function" != typeof executor) throw TypeError("Not a function");
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if (0 !== this.__NPO__) throw TypeError("Not a promise");
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this.__NPO__ = 1;
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var def = new MakeDef(this);
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this.then = function(success, failure) {
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var o = {
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success: "function" != typeof success || success,
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failure: "function" == typeof failure && failure
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};
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return o.promise = new this.constructor(function(resolve, reject) {
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if ("function" != typeof resolve || "function" != typeof reject) throw TypeError("Not a function");
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o.resolve = resolve, o.reject = reject
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}), def.chain.push(o), 0 !== def.state && schedule(notify, def), o.promise
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}, this.catch = function(failure) {
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return this.then(void 0, failure)
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};
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try {
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executor.call(void 0, function(msg) {
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resolve.call(def, msg)
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}, function(msg) {
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reject.call(def, msg)
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})
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} catch (err) {
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reject.call(def, err)
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}
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}
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var builtInProp, cycle, scheduling_queue, ToString = Object.prototype.toString,
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timer = "undefined" != typeof setImmediate ? function(fn) {
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return setImmediate(fn)
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} : setTimeout;
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try {
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Object.defineProperty({}, "x", {}), builtInProp = function(obj, name, val, config) {
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return Object.defineProperty(obj, name, {
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value: val,
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writable: !0,
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configurable: !1 !== config
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})
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}
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} catch (err) {
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builtInProp = function(obj, name, val) {
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return obj[name] = val, obj
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}
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}
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scheduling_queue = function() {
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function Item(fn, self) {
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this.fn = fn, this.self = self, this.next = void 0
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}
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var first, last, item;
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return {
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add: function(fn, self) {
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item = new Item(fn, self), last ? last.next = item : first = item, last = item, item = void 0
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},
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drain: function() {
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var f = first;
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for (first = last = cycle = void 0; f;) f.fn.call(f.self), f = f.next
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}
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}
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}();
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var PromisePrototype = builtInProp({}, "constructor", Promise, !1);
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return Promise.prototype = PromisePrototype, builtInProp(PromisePrototype, "__NPO__", 0, !1), builtInProp(Promise, "resolve", function(msg) {
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var Constructor = this;
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return msg && "object" == typeof msg && 1 === msg.__NPO__ ? msg : new Constructor(function(resolve, reject) {
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if ("function" != typeof resolve || "function" != typeof reject) throw TypeError("Not a function");
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resolve(msg)
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})
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}), builtInProp(Promise, "reject", function(msg) {
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return new this(function(resolve, reject) {
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if ("function" != typeof resolve || "function" != typeof reject) throw TypeError("Not a function");
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reject(msg)
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})
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}), builtInProp(Promise, "all", function(arr) {
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var Constructor = this;
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return "[object Array]" != ToString.call(arr) ? Constructor.reject(TypeError("Not an array")) : 0 === arr.length ? Constructor.resolve([]) : new Constructor(function(resolve, reject) {
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if ("function" != typeof resolve || "function" != typeof reject) throw TypeError("Not a function");
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var len = arr.length,
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msgs = Array(len),
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count = 0;
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iteratePromises(Constructor, arr, function(idx, msg) {
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msgs[idx] = msg, ++count === len && resolve(msgs)
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}, reject)
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})
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}), builtInProp(Promise, "race", function(arr) {
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var Constructor = this;
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return "[object Array]" != ToString.call(arr) ? Constructor.reject(TypeError("Not an array")) : new Constructor(function(resolve, reject) {
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if ("function" != typeof resolve || "function" != typeof reject) throw TypeError("Not a function");
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iteratePromises(Constructor, arr, function(idx, msg) {
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resolve(msg)
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}, reject)
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})
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}), Promise
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}); |