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- "use strict";
- module.exports = function(Promise, INTERNAL, tryConvertToPromise,
- apiRejection, Proxyable) {
- var util = require("./util");
- var isArray = util.isArray;
-
- function toResolutionValue(val) {
- switch(val) {
- case -2: return [];
- case -3: return {};
- case -6: return new Map();
- }
- }
-
- function PromiseArray(values) {
- var promise = this._promise = new Promise(INTERNAL);
- if (values instanceof Promise) {
- promise._propagateFrom(values, 3);
- values.suppressUnhandledRejections();
- }
- promise._setOnCancel(this);
- this._values = values;
- this._length = 0;
- this._totalResolved = 0;
- this._init(undefined, -2);
- }
- util.inherits(PromiseArray, Proxyable);
-
- PromiseArray.prototype.length = function () {
- return this._length;
- };
-
- PromiseArray.prototype.promise = function () {
- return this._promise;
- };
-
- PromiseArray.prototype._init = function init(_, resolveValueIfEmpty) {
- var values = tryConvertToPromise(this._values, this._promise);
- if (values instanceof Promise) {
- values = values._target();
- var bitField = values._bitField;
- ;
- this._values = values;
-
- if (((bitField & 50397184) === 0)) {
- this._promise._setAsyncGuaranteed();
- return values._then(
- init,
- this._reject,
- undefined,
- this,
- resolveValueIfEmpty
- );
- } else if (((bitField & 33554432) !== 0)) {
- values = values._value();
- } else if (((bitField & 16777216) !== 0)) {
- return this._reject(values._reason());
- } else {
- return this._cancel();
- }
- }
- values = util.asArray(values);
- if (values === null) {
- var err = apiRejection(
- "expecting an array or an iterable object but got " + util.classString(values)).reason();
- this._promise._rejectCallback(err, false);
- return;
- }
-
- if (values.length === 0) {
- if (resolveValueIfEmpty === -5) {
- this._resolveEmptyArray();
- }
- else {
- this._resolve(toResolutionValue(resolveValueIfEmpty));
- }
- return;
- }
- this._iterate(values);
- };
-
- PromiseArray.prototype._iterate = function(values) {
- var len = this.getActualLength(values.length);
- this._length = len;
- this._values = this.shouldCopyValues() ? new Array(len) : this._values;
- var result = this._promise;
- var isResolved = false;
- var bitField = null;
- for (var i = 0; i < len; ++i) {
- var maybePromise = tryConvertToPromise(values[i], result);
-
- if (maybePromise instanceof Promise) {
- maybePromise = maybePromise._target();
- bitField = maybePromise._bitField;
- } else {
- bitField = null;
- }
-
- if (isResolved) {
- if (bitField !== null) {
- maybePromise.suppressUnhandledRejections();
- }
- } else if (bitField !== null) {
- if (((bitField & 50397184) === 0)) {
- maybePromise._proxy(this, i);
- this._values[i] = maybePromise;
- } else if (((bitField & 33554432) !== 0)) {
- isResolved = this._promiseFulfilled(maybePromise._value(), i);
- } else if (((bitField & 16777216) !== 0)) {
- isResolved = this._promiseRejected(maybePromise._reason(), i);
- } else {
- isResolved = this._promiseCancelled(i);
- }
- } else {
- isResolved = this._promiseFulfilled(maybePromise, i);
- }
- }
- if (!isResolved) result._setAsyncGuaranteed();
- };
-
- PromiseArray.prototype._isResolved = function () {
- return this._values === null;
- };
-
- PromiseArray.prototype._resolve = function (value) {
- this._values = null;
- this._promise._fulfill(value);
- };
-
- PromiseArray.prototype._cancel = function() {
- if (this._isResolved() || !this._promise._isCancellable()) return;
- this._values = null;
- this._promise._cancel();
- };
-
- PromiseArray.prototype._reject = function (reason) {
- this._values = null;
- this._promise._rejectCallback(reason, false);
- };
-
- PromiseArray.prototype._promiseFulfilled = function (value, index) {
- this._values[index] = value;
- var totalResolved = ++this._totalResolved;
- if (totalResolved >= this._length) {
- this._resolve(this._values);
- return true;
- }
- return false;
- };
-
- PromiseArray.prototype._promiseCancelled = function() {
- this._cancel();
- return true;
- };
-
- PromiseArray.prototype._promiseRejected = function (reason) {
- this._totalResolved++;
- this._reject(reason);
- return true;
- };
-
- PromiseArray.prototype._resultCancelled = function() {
- if (this._isResolved()) return;
- var values = this._values;
- this._cancel();
- if (values instanceof Promise) {
- values.cancel();
- } else {
- for (var i = 0; i < values.length; ++i) {
- if (values[i] instanceof Promise) {
- values[i].cancel();
- }
- }
- }
- };
-
- PromiseArray.prototype.shouldCopyValues = function () {
- return true;
- };
-
- PromiseArray.prototype.getActualLength = function (len) {
- return len;
- };
-
- return PromiseArray;
- };
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