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"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
}
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var fromArray_1 = require("./fromArray");
var isArray_1 = require("../util/isArray");
var Subscriber_1 = require("../Subscriber");
var OuterSubscriber_1 = require("../OuterSubscriber");
var subscribeToResult_1 = require("../util/subscribeToResult");
var iterator_1 = require("../../internal/symbol/iterator");
function zip() {
var observables = [];
for (var _i = 0; _i < arguments.length; _i++) {
observables[_i] = arguments[_i];
}
var resultSelector = observables[observables.length - 1];
if (typeof resultSelector === 'function') {
observables.pop();
}
return fromArray_1.fromArray(observables, undefined).lift(new ZipOperator(resultSelector));
}
exports.zip = zip;
var ZipOperator = (function () {
function ZipOperator(resultSelector) {
this.resultSelector = resultSelector;
}
ZipOperator.prototype.call = function (subscriber, source) {
return source.subscribe(new ZipSubscriber(subscriber, this.resultSelector));
};
return ZipOperator;
}());
exports.ZipOperator = ZipOperator;
var ZipSubscriber = (function (_super) {
__extends(ZipSubscriber, _super);
function ZipSubscriber(destination, resultSelector, values) {
if (values === void 0) { values = Object.create(null); }
var _this = _super.call(this, destination) || this;
_this.iterators = [];
_this.active = 0;
_this.resultSelector = (typeof resultSelector === 'function') ? resultSelector : null;
_this.values = values;
return _this;
}
ZipSubscriber.prototype._next = function (value) {
var iterators = this.iterators;
if (isArray_1.isArray(value)) {
iterators.push(new StaticArrayIterator(value));
}
else if (typeof value[iterator_1.iterator] === 'function') {
iterators.push(new StaticIterator(value[iterator_1.iterator]()));
}
else {
iterators.push(new ZipBufferIterator(this.destination, this, value));
}
};
ZipSubscriber.prototype._complete = function () {
var iterators = this.iterators;
var len = iterators.length;
if (len === 0) {
this.destination.complete();
return;
}
this.active = len;
for (var i = 0; i < len; i++) {
var iterator = iterators[i];
if (iterator.stillUnsubscribed) {
this.add(iterator.subscribe(iterator, i));
}
else {
this.active--;
}
}
};
ZipSubscriber.prototype.notifyInactive = function () {
this.active--;
if (this.active === 0) {
this.destination.complete();
}
};
ZipSubscriber.prototype.checkIterators = function () {
var iterators = this.iterators;
var len = iterators.length;
var destination = this.destination;
for (var i = 0; i < len; i++) {
var iterator = iterators[i];
if (typeof iterator.hasValue === 'function' && !iterator.hasValue()) {
return;
}
}
var shouldComplete = false;
var args = [];
for (var i = 0; i < len; i++) {
var iterator = iterators[i];
var result = iterator.next();
if (iterator.hasCompleted()) {
shouldComplete = true;
}
if (result.done) {
destination.complete();
return;
}
args.push(result.value);
}
if (this.resultSelector) {
this._tryresultSelector(args);
}
else {
destination.next(args);
}
if (shouldComplete) {
destination.complete();
}
};
ZipSubscriber.prototype._tryresultSelector = function (args) {
var result;
try {
result = this.resultSelector.apply(this, args);
}
catch (err) {
this.destination.error(err);
return;
}
this.destination.next(result);
};
return ZipSubscriber;
}(Subscriber_1.Subscriber));
exports.ZipSubscriber = ZipSubscriber;
var StaticIterator = (function () {
function StaticIterator(iterator) {
this.iterator = iterator;
this.nextResult = iterator.next();
}
StaticIterator.prototype.hasValue = function () {
return true;
};
StaticIterator.prototype.next = function () {
var result = this.nextResult;
this.nextResult = this.iterator.next();
return result;
};
StaticIterator.prototype.hasCompleted = function () {
var nextResult = this.nextResult;
return nextResult && nextResult.done;
};
return StaticIterator;
}());
var StaticArrayIterator = (function () {
function StaticArrayIterator(array) {
this.array = array;
this.index = 0;
this.length = 0;
this.length = array.length;
}
StaticArrayIterator.prototype[iterator_1.iterator] = function () {
return this;
};
StaticArrayIterator.prototype.next = function (value) {
var i = this.index++;
var array = this.array;
return i < this.length ? { value: array[i], done: false } : { value: null, done: true };
};
StaticArrayIterator.prototype.hasValue = function () {
return this.array.length > this.index;
};
StaticArrayIterator.prototype.hasCompleted = function () {
return this.array.length === this.index;
};
return StaticArrayIterator;
}());
var ZipBufferIterator = (function (_super) {
__extends(ZipBufferIterator, _super);
function ZipBufferIterator(destination, parent, observable) {
var _this = _super.call(this, destination) || this;
_this.parent = parent;
_this.observable = observable;
_this.stillUnsubscribed = true;
_this.buffer = [];
_this.isComplete = false;
return _this;
}
ZipBufferIterator.prototype[iterator_1.iterator] = function () {
return this;
};
ZipBufferIterator.prototype.next = function () {
var buffer = this.buffer;
if (buffer.length === 0 && this.isComplete) {
return { value: null, done: true };
}
else {
return { value: buffer.shift(), done: false };
}
};
ZipBufferIterator.prototype.hasValue = function () {
return this.buffer.length > 0;
};
ZipBufferIterator.prototype.hasCompleted = function () {
return this.buffer.length === 0 && this.isComplete;
};
ZipBufferIterator.prototype.notifyComplete = function () {
if (this.buffer.length > 0) {
this.isComplete = true;
this.parent.notifyInactive();
}
else {
this.destination.complete();
}
};
ZipBufferIterator.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
this.buffer.push(innerValue);
this.parent.checkIterators();
};
ZipBufferIterator.prototype.subscribe = function (value, index) {
return subscribeToResult_1.subscribeToResult(this, this.observable, this, index);
};
return ZipBufferIterator;
}(OuterSubscriber_1.OuterSubscriber));
//# sourceMappingURL=zip.js.map
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