716 lines
22 KiB
JavaScript
716 lines
22 KiB
JavaScript
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"use strict";
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module.exports = function() {
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var makeSelfResolutionError = function () {
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return new TypeError("circular promise resolution chain\u000a\u000a See http://goo.gl/LhFpo0\u000a");
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};
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var reflect = function() {
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return new Promise.PromiseInspection(this._target());
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};
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var apiRejection = function(msg) {
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return Promise.reject(new TypeError(msg));
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};
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var util = require("./util.js");
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var async = require("./async.js");
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var errors = require("./errors.js");
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var TypeError = Promise.TypeError = errors.TypeError;
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Promise.RangeError = errors.RangeError;
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Promise.CancellationError = errors.CancellationError;
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Promise.TimeoutError = errors.TimeoutError;
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Promise.OperationalError = errors.OperationalError;
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Promise.RejectionError = errors.OperationalError;
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Promise.AggregateError = errors.AggregateError;
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var INTERNAL = function(){};
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var APPLY = {};
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var NEXT_FILTER = {e: null};
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var tryConvertToPromise = require("./thenables.js")(Promise, INTERNAL);
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var PromiseArray =
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require("./promise_array.js")(Promise, INTERNAL,
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tryConvertToPromise, apiRejection);
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var CapturedTrace = require("./captured_trace.js")();
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var isDebugging = require("./debuggability.js")(Promise, CapturedTrace);
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/*jshint unused:false*/
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var createContext =
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require("./context.js")(Promise, CapturedTrace, isDebugging);
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var CatchFilter = require("./catch_filter.js")(NEXT_FILTER);
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var PromiseResolver = require("./promise_resolver.js");
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var nodebackForPromise = PromiseResolver._nodebackForPromise;
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var errorObj = util.errorObj;
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var tryCatch = util.tryCatch;
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function Promise(resolver) {
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if (typeof resolver !== "function") {
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throw new TypeError("the promise constructor requires a resolver function\u000a\u000a See http://goo.gl/EC22Yn\u000a");
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}
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if (this.constructor !== Promise) {
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throw new TypeError("the promise constructor cannot be invoked directly\u000a\u000a See http://goo.gl/KsIlge\u000a");
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}
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this._bitField = 0;
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this._fulfillmentHandler0 = undefined;
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this._rejectionHandler0 = undefined;
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this._progressHandler0 = undefined;
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this._promise0 = undefined;
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this._receiver0 = undefined;
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this._settledValue = undefined;
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this._boundTo = undefined;
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if (resolver !== INTERNAL) this._resolveFromResolver(resolver);
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}
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Promise.prototype.toString = function () {
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return "[object Promise]";
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};
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Promise.prototype.caught = Promise.prototype["catch"] = function (fn) {
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var len = arguments.length;
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if (len > 1) {
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var catchInstances = new Array(len - 1),
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j = 0, i;
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for (i = 0; i < len - 1; ++i) {
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var item = arguments[i];
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if (typeof item === "function") {
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catchInstances[j++] = item;
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} else {
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return Promise.reject(
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new TypeError("Catch filter must inherit from Error or be a simple predicate function\u000a\u000a See http://goo.gl/o84o68\u000a"));
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}
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}
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catchInstances.length = j;
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fn = arguments[i];
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var catchFilter = new CatchFilter(catchInstances, fn, this);
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return this._then(undefined, catchFilter.doFilter, undefined,
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catchFilter, undefined);
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}
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return this._then(undefined, fn, undefined, undefined, undefined);
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};
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Promise.prototype.reflect = function () {
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return this._then(reflect, reflect, undefined, this, undefined);
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};
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Promise.prototype.then = function (didFulfill, didReject, didProgress) {
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if (isDebugging() && arguments.length > 0 &&
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typeof didFulfill !== "function" &&
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typeof didReject !== "function") {
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var msg = ".then() only accepts functions but was passed: " +
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util.classString(didFulfill);
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if (arguments.length > 1) {
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msg += ", " + util.classString(didReject);
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}
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this._warn(msg);
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}
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return this._then(didFulfill, didReject, didProgress,
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undefined, undefined);
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};
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Promise.prototype.done = function (didFulfill, didReject, didProgress) {
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var promise = this._then(didFulfill, didReject, didProgress,
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undefined, undefined);
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promise._setIsFinal();
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};
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Promise.prototype.spread = function (didFulfill, didReject) {
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var followee = this._target();
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var target = followee._isSpreadable()
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? (followee === this ? this : this.then())
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: this.all();
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return target._then(didFulfill, didReject, undefined, APPLY, undefined);
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};
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Promise.prototype.isCancellable = function () {
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return !this.isResolved() &&
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this._cancellable();
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};
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Promise.prototype.toJSON = function () {
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var ret = {
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isFulfilled: false,
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isRejected: false,
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fulfillmentValue: undefined,
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rejectionReason: undefined
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};
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if (this.isFulfilled()) {
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ret.fulfillmentValue = this.value();
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ret.isFulfilled = true;
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} else if (this.isRejected()) {
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ret.rejectionReason = this.reason();
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ret.isRejected = true;
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}
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return ret;
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};
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Promise.prototype.all = function () {
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var ret = new PromiseArray(this).promise();
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ret._setIsSpreadable();
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return ret;
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};
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Promise.prototype.error = function (fn) {
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return this.caught(util.originatesFromRejection, fn);
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};
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Promise.is = function (val) {
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return val instanceof Promise;
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};
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Promise.fromNode = function(fn) {
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var ret = new Promise(INTERNAL);
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var result = tryCatch(fn)(nodebackForPromise(ret));
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if (result === errorObj) {
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ret._rejectCallback(result.e, true, true);
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}
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return ret;
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};
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Promise.all = function (promises) {
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var ret = new PromiseArray(promises).promise();
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ret._setIsSpreadable();
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return ret;
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};
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Promise.defer = Promise.pending = function () {
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var promise = new Promise(INTERNAL);
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return new PromiseResolver(promise);
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};
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Promise.cast = function (obj) {
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var ret = tryConvertToPromise(obj);
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if (!(ret instanceof Promise)) {
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var val = ret;
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ret = new Promise(INTERNAL);
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ret._fulfillUnchecked(val);
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}
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return ret;
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};
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Promise.resolve = Promise.fulfilled = Promise.cast;
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Promise.reject = Promise.rejected = function (reason) {
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var ret = new Promise(INTERNAL);
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ret._captureStackTrace();
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ret._rejectCallback(reason, true);
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return ret;
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};
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Promise.setScheduler = function(fn) {
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if (typeof fn !== "function") throw new TypeError("fn must be a function\u000a\u000a See http://goo.gl/916lJJ\u000a");
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var prev = async._schedule;
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async._schedule = fn;
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return prev;
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};
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Promise.prototype._then = function (
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didFulfill,
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didReject,
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didProgress,
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receiver,
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internalData
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) {
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var haveInternalData = internalData !== undefined;
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var ret = haveInternalData ? internalData : new Promise(INTERNAL);
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if (!haveInternalData) {
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ret._propagateFrom(this, 4 | 1);
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ret._captureStackTrace();
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}
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var target = this._target();
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if (target !== this) {
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if (!haveInternalData) {
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ret._setIsMigrated();
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if (receiver === undefined) {
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ret._setIsMigratingBinding();
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receiver = this;
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}
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}
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}
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var callbackIndex =
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target._addCallbacks(didFulfill, didReject, didProgress, ret, receiver);
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if (target._isResolved() && !target._isSettlePromisesQueued()) {
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async.invoke(
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target._settlePromiseAtPostResolution, target, callbackIndex);
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}
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return ret;
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};
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Promise.prototype._settlePromiseAtPostResolution = function (index) {
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if (this._isRejectionUnhandled()) this._unsetRejectionIsUnhandled();
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this._settlePromiseAt(index);
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};
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Promise.prototype._length = function () {
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return this._bitField & 131071;
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};
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Promise.prototype._isFollowingOrFulfilledOrRejected = function () {
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return (this._bitField & 939524096) > 0;
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};
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Promise.prototype._isFollowing = function () {
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return (this._bitField & 536870912) === 536870912;
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};
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Promise.prototype._setLength = function (len) {
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this._bitField = (this._bitField & -131072) |
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(len & 131071);
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};
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Promise.prototype._setFulfilled = function () {
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this._bitField = this._bitField | 268435456;
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};
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Promise.prototype._setRejected = function () {
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this._bitField = this._bitField | 134217728;
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};
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Promise.prototype._setFollowing = function () {
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this._bitField = this._bitField | 536870912;
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};
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Promise.prototype._setIsFinal = function () {
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this._bitField = this._bitField | 33554432;
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};
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Promise.prototype._isFinal = function () {
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return (this._bitField & 33554432) > 0;
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};
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Promise.prototype._cancellable = function () {
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return (this._bitField & 67108864) > 0;
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};
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Promise.prototype._setCancellable = function () {
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this._bitField = this._bitField | 67108864;
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};
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Promise.prototype._unsetCancellable = function () {
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this._bitField = this._bitField & (~67108864);
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};
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Promise.prototype._isSpreadable = function () {
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return (this._bitField & 131072) > 0;
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};
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Promise.prototype._setIsSpreadable = function () {
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this._bitField = this._bitField | 131072;
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};
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Promise.prototype._setIsMigrated = function () {
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this._bitField = this._bitField | 4194304;
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};
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Promise.prototype._unsetIsMigrated = function () {
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this._bitField = this._bitField & (~4194304);
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};
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Promise.prototype._isMigrated = function () {
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return (this._bitField & 4194304) > 0;
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};
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Promise.prototype._receiverAt = function (index) {
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var ret = index === 0
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? this._receiver0
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: this[
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index * 5 - 5 + 4];
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if (this._isBound() && ret === undefined) {
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return this._boundTo;
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}
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return ret;
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};
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Promise.prototype._promiseAt = function (index) {
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return index === 0
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? this._promise0
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: this[index * 5 - 5 + 3];
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};
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Promise.prototype._fulfillmentHandlerAt = function (index) {
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return index === 0
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? this._fulfillmentHandler0
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: this[index * 5 - 5 + 0];
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};
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Promise.prototype._rejectionHandlerAt = function (index) {
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return index === 0
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? this._rejectionHandler0
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: this[index * 5 - 5 + 1];
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};
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Promise.prototype._migrateCallbacks = function (follower, index) {
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var fulfill = follower._fulfillmentHandlerAt(index);
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var reject = follower._rejectionHandlerAt(index);
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var progress = follower._progressHandlerAt(index);
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var promise = follower._promiseAt(index);
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var receiver = follower._receiverAt(index);
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if (promise instanceof Promise) {
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promise._setIsMigrated();
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if (receiver === undefined) {
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receiver = follower;
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promise._setIsMigratingBinding();
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}
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}
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this._addCallbacks(fulfill, reject, progress, promise, receiver);
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};
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Promise.prototype._addCallbacks = function (
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fulfill,
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reject,
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progress,
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promise,
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receiver
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) {
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var index = this._length();
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if (index >= 131071 - 5) {
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index = 0;
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this._setLength(0);
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}
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if (index === 0) {
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this._promise0 = promise;
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if (receiver !== undefined) this._receiver0 = receiver;
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if (typeof fulfill === "function" && !this._isCarryingStackTrace())
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this._fulfillmentHandler0 = fulfill;
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if (typeof reject === "function") this._rejectionHandler0 = reject;
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if (typeof progress === "function") this._progressHandler0 = progress;
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} else {
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var base = index * 5 - 5;
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this[base + 3] = promise;
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this[base + 4] = receiver;
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if (typeof fulfill === "function")
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this[base + 0] = fulfill;
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if (typeof reject === "function")
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this[base + 1] = reject;
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if (typeof progress === "function")
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this[base + 2] = progress;
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}
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this._setLength(index + 1);
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return index;
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};
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Promise.prototype._setProxyHandlers = function (receiver, promiseSlotValue) {
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var index = this._length();
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if (index >= 131071 - 5) {
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index = 0;
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this._setLength(0);
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}
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if (index === 0) {
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this._promise0 = promiseSlotValue;
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this._receiver0 = receiver;
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} else {
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var base = index * 5 - 5;
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this[base + 3] = promiseSlotValue;
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this[base + 4] = receiver;
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}
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this._setLength(index + 1);
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};
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Promise.prototype._proxyPromiseArray = function (promiseArray, index) {
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this._setProxyHandlers(promiseArray, index);
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};
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Promise.prototype._resolveCallback = function(value, shouldBind) {
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if (this._isFollowingOrFulfilledOrRejected()) return;
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if (value === this)
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return this._rejectCallback(makeSelfResolutionError(), false, true);
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var maybePromise = tryConvertToPromise(value, this);
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if (!(maybePromise instanceof Promise)) return this._fulfill(value);
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var propagationFlags = 1 | (shouldBind ? 4 : 0);
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this._propagateFrom(maybePromise, propagationFlags);
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var promise = maybePromise._target();
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if (promise._isPending()) {
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var len = this._length();
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for (var i = 0; i < len; ++i) {
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promise._migrateCallbacks(this, i);
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}
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this._setFollowing();
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this._setLength(0);
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this._setFollowee(promise);
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} else if (promise._isFulfilled()) {
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this._fulfillUnchecked(promise._value());
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} else {
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this._rejectUnchecked(promise._reason(),
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promise._getCarriedStackTrace());
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}
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};
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Promise.prototype._rejectCallback =
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function(reason, synchronous, shouldNotMarkOriginatingFromRejection) {
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if (!shouldNotMarkOriginatingFromRejection) {
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util.markAsOriginatingFromRejection(reason);
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}
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var trace = util.ensureErrorObject(reason);
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var hasStack = util.canAttachTrace(reason) &&
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||
|
typeof trace.stack === "string" && trace.stack.length > 0;
|
||
|
this._attachExtraTrace(trace, synchronous ? hasStack : false);
|
||
|
this._reject(reason, trace === reason ? undefined : trace);
|
||
|
};
|
||
|
|
||
|
Promise.prototype._resolveFromResolver = function (resolver) {
|
||
|
var promise = this;
|
||
|
this._captureStackTrace();
|
||
|
this._pushContext();
|
||
|
var synchronous = true;
|
||
|
var r = tryCatch(resolver)(function(value) {
|
||
|
if (promise === null) return;
|
||
|
promise._resolveCallback(value);
|
||
|
promise = null;
|
||
|
}, function (reason) {
|
||
|
if (promise === null) return;
|
||
|
promise._rejectCallback(reason, synchronous);
|
||
|
promise = null;
|
||
|
});
|
||
|
synchronous = false;
|
||
|
this._popContext();
|
||
|
|
||
|
if (r !== undefined && r === errorObj && promise !== null) {
|
||
|
promise._rejectCallback(r.e, true, true);
|
||
|
promise = null;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
Promise.prototype._settlePromiseFromHandler = function (
|
||
|
handler, receiver, value, promise
|
||
|
) {
|
||
|
if (promise._isRejected()) return;
|
||
|
promise._pushContext();
|
||
|
var x;
|
||
|
if (receiver === APPLY && !this._isRejected()) {
|
||
|
x = tryCatch(handler).apply(this._boundTo, value);
|
||
|
} else {
|
||
|
x = tryCatch(handler).call(receiver, value);
|
||
|
}
|
||
|
promise._popContext();
|
||
|
|
||
|
if (x === errorObj || x === promise || x === NEXT_FILTER) {
|
||
|
var err = x === promise ? makeSelfResolutionError() : x.e;
|
||
|
promise._rejectCallback(err, false, true);
|
||
|
} else {
|
||
|
promise._resolveCallback(x);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
Promise.prototype._target = function() {
|
||
|
var ret = this;
|
||
|
while (ret._isFollowing()) ret = ret._followee();
|
||
|
return ret;
|
||
|
};
|
||
|
|
||
|
Promise.prototype._followee = function() {
|
||
|
return this._rejectionHandler0;
|
||
|
};
|
||
|
|
||
|
Promise.prototype._setFollowee = function(promise) {
|
||
|
this._rejectionHandler0 = promise;
|
||
|
};
|
||
|
|
||
|
Promise.prototype._cleanValues = function () {
|
||
|
if (this._cancellable()) {
|
||
|
this._cancellationParent = undefined;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
Promise.prototype._propagateFrom = function (parent, flags) {
|
||
|
if ((flags & 1) > 0 && parent._cancellable()) {
|
||
|
this._setCancellable();
|
||
|
this._cancellationParent = parent;
|
||
|
}
|
||
|
if ((flags & 4) > 0) {
|
||
|
this._setBoundTo(parent._boundTo);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
Promise.prototype._fulfill = function (value) {
|
||
|
if (this._isFollowingOrFulfilledOrRejected()) return;
|
||
|
this._fulfillUnchecked(value);
|
||
|
};
|
||
|
|
||
|
Promise.prototype._reject = function (reason, carriedStackTrace) {
|
||
|
if (this._isFollowingOrFulfilledOrRejected()) return;
|
||
|
this._rejectUnchecked(reason, carriedStackTrace);
|
||
|
};
|
||
|
|
||
|
Promise.prototype._settlePromiseAt = function (index) {
|
||
|
var promise = this._promiseAt(index);
|
||
|
var isPromise = promise instanceof Promise;
|
||
|
|
||
|
if (isPromise && promise._isMigrated()) {
|
||
|
promise._unsetIsMigrated();
|
||
|
return async.invoke(this._settlePromiseAt, this, index);
|
||
|
}
|
||
|
var handler = this._isFulfilled()
|
||
|
? this._fulfillmentHandlerAt(index)
|
||
|
: this._rejectionHandlerAt(index);
|
||
|
|
||
|
var carriedStackTrace =
|
||
|
this._isCarryingStackTrace() ? this._getCarriedStackTrace() : undefined;
|
||
|
var value = this._settledValue;
|
||
|
var receiver = this._receiverAt(index);
|
||
|
if (isPromise && promise._isMigratingBinding()) {
|
||
|
promise._unsetIsMigratingBinding();
|
||
|
receiver = receiver._boundTo;
|
||
|
}
|
||
|
|
||
|
this._clearCallbackDataAtIndex(index);
|
||
|
|
||
|
if (typeof handler === "function") {
|
||
|
if (!isPromise) {
|
||
|
handler.call(receiver, value, promise);
|
||
|
} else {
|
||
|
this._settlePromiseFromHandler(handler, receiver, value, promise);
|
||
|
}
|
||
|
} else if (receiver instanceof PromiseArray) {
|
||
|
if (!receiver._isResolved()) {
|
||
|
if (this._isFulfilled()) {
|
||
|
receiver._promiseFulfilled(value, promise);
|
||
|
}
|
||
|
else {
|
||
|
receiver._promiseRejected(value, promise);
|
||
|
}
|
||
|
}
|
||
|
} else if (isPromise) {
|
||
|
if (this._isFulfilled()) {
|
||
|
promise._fulfill(value);
|
||
|
} else {
|
||
|
promise._reject(value, carriedStackTrace);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (index >= 4 && (index & 31) === 4)
|
||
|
async.invokeLater(this._setLength, this, 0);
|
||
|
};
|
||
|
|
||
|
Promise.prototype._clearCallbackDataAtIndex = function(index) {
|
||
|
if (index === 0) {
|
||
|
if (!this._isCarryingStackTrace()) {
|
||
|
this._fulfillmentHandler0 = undefined;
|
||
|
}
|
||
|
this._rejectionHandler0 =
|
||
|
this._progressHandler0 =
|
||
|
this._receiver0 =
|
||
|
this._promise0 = undefined;
|
||
|
} else {
|
||
|
var base = index * 5 - 5;
|
||
|
this[base + 3] =
|
||
|
this[base + 4] =
|
||
|
this[base + 0] =
|
||
|
this[base + 1] =
|
||
|
this[base + 2] = undefined;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
Promise.prototype._isSettlePromisesQueued = function () {
|
||
|
return (this._bitField &
|
||
|
-1073741824) === -1073741824;
|
||
|
};
|
||
|
|
||
|
Promise.prototype._setSettlePromisesQueued = function () {
|
||
|
this._bitField = this._bitField | -1073741824;
|
||
|
};
|
||
|
|
||
|
Promise.prototype._unsetSettlePromisesQueued = function () {
|
||
|
this._bitField = this._bitField & (~-1073741824);
|
||
|
};
|
||
|
|
||
|
Promise.prototype._queueSettlePromises = function() {
|
||
|
async.settlePromises(this);
|
||
|
this._setSettlePromisesQueued();
|
||
|
};
|
||
|
|
||
|
Promise.prototype._fulfillUnchecked = function (value) {
|
||
|
if (value === this) {
|
||
|
var err = makeSelfResolutionError();
|
||
|
this._attachExtraTrace(err);
|
||
|
return this._rejectUnchecked(err, undefined);
|
||
|
}
|
||
|
this._setFulfilled();
|
||
|
this._settledValue = value;
|
||
|
this._cleanValues();
|
||
|
|
||
|
if (this._length() > 0) {
|
||
|
this._queueSettlePromises();
|
||
|
}
|
||
|
};
|
||
|
|
||
|
Promise.prototype._rejectUncheckedCheckError = function (reason) {
|
||
|
var trace = util.ensureErrorObject(reason);
|
||
|
this._rejectUnchecked(reason, trace === reason ? undefined : trace);
|
||
|
};
|
||
|
|
||
|
Promise.prototype._rejectUnchecked = function (reason, trace) {
|
||
|
if (reason === this) {
|
||
|
var err = makeSelfResolutionError();
|
||
|
this._attachExtraTrace(err);
|
||
|
return this._rejectUnchecked(err);
|
||
|
}
|
||
|
this._setRejected();
|
||
|
this._settledValue = reason;
|
||
|
this._cleanValues();
|
||
|
|
||
|
if (this._isFinal()) {
|
||
|
async.throwLater(function(e) {
|
||
|
if ("stack" in e) {
|
||
|
async.invokeFirst(
|
||
|
CapturedTrace.unhandledRejection, undefined, e);
|
||
|
}
|
||
|
throw e;
|
||
|
}, trace === undefined ? reason : trace);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
if (trace !== undefined && trace !== reason) {
|
||
|
this._setCarriedStackTrace(trace);
|
||
|
}
|
||
|
|
||
|
if (this._length() > 0) {
|
||
|
this._queueSettlePromises();
|
||
|
} else {
|
||
|
this._ensurePossibleRejectionHandled();
|
||
|
}
|
||
|
};
|
||
|
|
||
|
Promise.prototype._settlePromises = function () {
|
||
|
this._unsetSettlePromisesQueued();
|
||
|
var len = this._length();
|
||
|
for (var i = 0; i < len; i++) {
|
||
|
this._settlePromiseAt(i);
|
||
|
}
|
||
|
};
|
||
|
|
||
|
Promise._makeSelfResolutionError = makeSelfResolutionError;
|
||
|
require("./method.js")(Promise, INTERNAL, tryConvertToPromise, apiRejection);
|
||
|
require("./bind.js")(Promise, INTERNAL, tryConvertToPromise);
|
||
|
require("./finally.js")(Promise, NEXT_FILTER, tryConvertToPromise);
|
||
|
require("./direct_resolve.js")(Promise);
|
||
|
require("./synchronous_inspection.js")(Promise);
|
||
|
require("./join.js")(Promise, PromiseArray, tryConvertToPromise, INTERNAL);
|
||
|
|
||
|
util.toFastProperties(Promise);
|
||
|
util.toFastProperties(Promise.prototype);
|
||
|
Promise.Promise = Promise;
|
||
|
CapturedTrace.setBounds(async.firstLineError, util.lastLineError);
|
||
|
require('./map.js')(Promise, PromiseArray, apiRejection, tryConvertToPromise, INTERNAL);
|
||
|
require('./using.js')(Promise, apiRejection, tryConvertToPromise, createContext);
|
||
|
require('./generators.js')(Promise, apiRejection, INTERNAL, tryConvertToPromise);
|
||
|
require('./nodeify.js')(Promise);
|
||
|
require('./cancel.js')(Promise);
|
||
|
require('./promisify.js')(Promise, INTERNAL);
|
||
|
require('./props.js')(Promise, PromiseArray, tryConvertToPromise, apiRejection);
|
||
|
require('./race.js')(Promise, INTERNAL, tryConvertToPromise, apiRejection);
|
||
|
require('./reduce.js')(Promise, PromiseArray, apiRejection, tryConvertToPromise, INTERNAL);
|
||
|
require('./settle.js')(Promise, PromiseArray);
|
||
|
require('./call_get.js')(Promise);
|
||
|
require('./some.js')(Promise, PromiseArray, apiRejection);
|
||
|
require('./progress.js')(Promise, PromiseArray);
|
||
|
require('./any.js')(Promise);
|
||
|
require('./each.js')(Promise, INTERNAL);
|
||
|
require('./timers.js')(Promise, INTERNAL);
|
||
|
require('./filter.js')(Promise, INTERNAL);
|
||
|
|
||
|
Promise.prototype = Promise.prototype;
|
||
|
return Promise;
|
||
|
|
||
|
};
|