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- "use strict";
- module.exports =
- function(Promise, PromiseArray, apiRejection) {
- var util = require("./util");
- var RangeError = require("./errors").RangeError;
- var AggregateError = require("./errors").AggregateError;
- var isArray = util.isArray;
- var CANCELLATION = {};
- function SomePromiseArray(values) {
- this.constructor$(values);
- this._howMany = 0;
- this._unwrap = false;
- this._initialized = false;
- }
- util.inherits(SomePromiseArray, PromiseArray);
- SomePromiseArray.prototype._init = function () {
- if (!this._initialized) {
- return;
- }
- if (this._howMany === 0) {
- this._resolve([]);
- return;
- }
- this._init$(undefined, -5);
- var isArrayResolved = isArray(this._values);
- if (!this._isResolved() &&
- isArrayResolved &&
- this._howMany > this._canPossiblyFulfill()) {
- this._reject(this._getRangeError(this.length()));
- }
- };
- SomePromiseArray.prototype.init = function () {
- this._initialized = true;
- this._init();
- };
- SomePromiseArray.prototype.setUnwrap = function () {
- this._unwrap = true;
- };
- SomePromiseArray.prototype.howMany = function () {
- return this._howMany;
- };
- SomePromiseArray.prototype.setHowMany = function (count) {
- this._howMany = count;
- };
- SomePromiseArray.prototype._promiseFulfilled = function (value) {
- this._addFulfilled(value);
- if (this._fulfilled() === this.howMany()) {
- this._values.length = this.howMany();
- if (this.howMany() === 1 && this._unwrap) {
- this._resolve(this._values[0]);
- } else {
- this._resolve(this._values);
- }
- return true;
- }
- return false;
- };
- SomePromiseArray.prototype._promiseRejected = function (reason) {
- this._addRejected(reason);
- return this._checkOutcome();
- };
- SomePromiseArray.prototype._promiseCancelled = function () {
- if (this._values instanceof Promise || this._values == null) {
- return this._cancel();
- }
- this._addRejected(CANCELLATION);
- return this._checkOutcome();
- };
- SomePromiseArray.prototype._checkOutcome = function() {
- if (this.howMany() > this._canPossiblyFulfill()) {
- var e = new AggregateError();
- for (var i = this.length(); i < this._values.length; ++i) {
- if (this._values[i] !== CANCELLATION) {
- e.push(this._values[i]);
- }
- }
- if (e.length > 0) {
- this._reject(e);
- } else {
- this._cancel();
- }
- return true;
- }
- return false;
- };
- SomePromiseArray.prototype._fulfilled = function () {
- return this._totalResolved;
- };
- SomePromiseArray.prototype._rejected = function () {
- return this._values.length - this.length();
- };
- SomePromiseArray.prototype._addRejected = function (reason) {
- this._values.push(reason);
- };
- SomePromiseArray.prototype._addFulfilled = function (value) {
- this._values[this._totalResolved++] = value;
- };
- SomePromiseArray.prototype._canPossiblyFulfill = function () {
- return this.length() - this._rejected();
- };
- SomePromiseArray.prototype._getRangeError = function (count) {
- var message = "Input array must contain at least " +
- this._howMany + " items but contains only " + count + " items";
- return new RangeError(message);
- };
- SomePromiseArray.prototype._resolveEmptyArray = function () {
- this._reject(this._getRangeError(0));
- };
- function some(promises, howMany) {
- if ((howMany | 0) !== howMany || howMany < 0) {
- return apiRejection("expecting a positive integer\u000a\u000a See http://goo.gl/MqrFmX\u000a");
- }
- var ret = new SomePromiseArray(promises);
- var promise = ret.promise();
- ret.setHowMany(howMany);
- ret.init();
- return promise;
- }
- Promise.some = function (promises, howMany) {
- return some(promises, howMany);
- };
- Promise.prototype.some = function (howMany) {
- return some(this, howMany);
- };
- Promise._SomePromiseArray = SomePromiseArray;
- };
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