/** PURE_IMPORTS_START tslib,_fromArray,_util_isArray,_Subscriber,_.._internal_symbol_iterator,_innerSubscribe PURE_IMPORTS_END */
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import * as tslib_1 from "tslib";
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import { fromArray } from './fromArray';
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import { isArray } from '../util/isArray';
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import { Subscriber } from '../Subscriber';
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import { iterator as Symbol_iterator } from '../../internal/symbol/iterator';
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import { SimpleOuterSubscriber, SimpleInnerSubscriber, innerSubscribe } from '../innerSubscribe';
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export function zip() {
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var observables = [];
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for (var _i = 0; _i < arguments.length; _i++) {
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observables[_i] = arguments[_i];
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}
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var resultSelector = observables[observables.length - 1];
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if (typeof resultSelector === 'function') {
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observables.pop();
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}
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return fromArray(observables, undefined).lift(new ZipOperator(resultSelector));
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}
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var ZipOperator = /*@__PURE__*/ (function () {
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function ZipOperator(resultSelector) {
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this.resultSelector = resultSelector;
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}
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ZipOperator.prototype.call = function (subscriber, source) {
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return source.subscribe(new ZipSubscriber(subscriber, this.resultSelector));
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};
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return ZipOperator;
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}());
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export { ZipOperator };
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var ZipSubscriber = /*@__PURE__*/ (function (_super) {
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tslib_1.__extends(ZipSubscriber, _super);
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function ZipSubscriber(destination, resultSelector, values) {
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if (values === void 0) {
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values = Object.create(null);
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}
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var _this = _super.call(this, destination) || this;
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_this.resultSelector = resultSelector;
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_this.iterators = [];
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_this.active = 0;
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_this.resultSelector = (typeof resultSelector === 'function') ? resultSelector : undefined;
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return _this;
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}
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ZipSubscriber.prototype._next = function (value) {
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var iterators = this.iterators;
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if (isArray(value)) {
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iterators.push(new StaticArrayIterator(value));
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}
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else if (typeof value[Symbol_iterator] === 'function') {
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iterators.push(new StaticIterator(value[Symbol_iterator]()));
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}
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else {
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iterators.push(new ZipBufferIterator(this.destination, this, value));
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}
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};
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ZipSubscriber.prototype._complete = function () {
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var iterators = this.iterators;
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var len = iterators.length;
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this.unsubscribe();
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if (len === 0) {
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this.destination.complete();
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return;
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}
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this.active = len;
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for (var i = 0; i < len; i++) {
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var iterator = iterators[i];
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if (iterator.stillUnsubscribed) {
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var destination = this.destination;
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destination.add(iterator.subscribe());
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}
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else {
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this.active--;
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}
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}
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};
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ZipSubscriber.prototype.notifyInactive = function () {
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this.active--;
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if (this.active === 0) {
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this.destination.complete();
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}
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};
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ZipSubscriber.prototype.checkIterators = function () {
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var iterators = this.iterators;
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var len = iterators.length;
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var destination = this.destination;
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for (var i = 0; i < len; i++) {
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var iterator = iterators[i];
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if (typeof iterator.hasValue === 'function' && !iterator.hasValue()) {
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return;
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}
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}
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var shouldComplete = false;
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var args = [];
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for (var i = 0; i < len; i++) {
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var iterator = iterators[i];
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var result = iterator.next();
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if (iterator.hasCompleted()) {
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shouldComplete = true;
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}
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if (result.done) {
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destination.complete();
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return;
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}
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args.push(result.value);
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}
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if (this.resultSelector) {
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this._tryresultSelector(args);
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}
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else {
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destination.next(args);
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}
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if (shouldComplete) {
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destination.complete();
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}
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};
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ZipSubscriber.prototype._tryresultSelector = function (args) {
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var result;
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try {
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result = this.resultSelector.apply(this, args);
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}
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catch (err) {
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this.destination.error(err);
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return;
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}
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this.destination.next(result);
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};
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return ZipSubscriber;
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}(Subscriber));
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export { ZipSubscriber };
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var StaticIterator = /*@__PURE__*/ (function () {
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function StaticIterator(iterator) {
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this.iterator = iterator;
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this.nextResult = iterator.next();
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}
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StaticIterator.prototype.hasValue = function () {
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return true;
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};
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StaticIterator.prototype.next = function () {
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var result = this.nextResult;
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this.nextResult = this.iterator.next();
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return result;
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};
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StaticIterator.prototype.hasCompleted = function () {
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var nextResult = this.nextResult;
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return Boolean(nextResult && nextResult.done);
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};
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return StaticIterator;
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}());
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var StaticArrayIterator = /*@__PURE__*/ (function () {
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function StaticArrayIterator(array) {
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this.array = array;
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this.index = 0;
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this.length = 0;
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this.length = array.length;
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}
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StaticArrayIterator.prototype[Symbol_iterator] = function () {
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return this;
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};
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StaticArrayIterator.prototype.next = function (value) {
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var i = this.index++;
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var array = this.array;
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return i < this.length ? { value: array[i], done: false } : { value: null, done: true };
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};
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StaticArrayIterator.prototype.hasValue = function () {
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return this.array.length > this.index;
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};
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StaticArrayIterator.prototype.hasCompleted = function () {
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return this.array.length === this.index;
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};
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return StaticArrayIterator;
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}());
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var ZipBufferIterator = /*@__PURE__*/ (function (_super) {
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tslib_1.__extends(ZipBufferIterator, _super);
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function ZipBufferIterator(destination, parent, observable) {
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var _this = _super.call(this, destination) || this;
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_this.parent = parent;
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_this.observable = observable;
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_this.stillUnsubscribed = true;
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_this.buffer = [];
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_this.isComplete = false;
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return _this;
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}
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ZipBufferIterator.prototype[Symbol_iterator] = function () {
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return this;
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};
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ZipBufferIterator.prototype.next = function () {
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var buffer = this.buffer;
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if (buffer.length === 0 && this.isComplete) {
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return { value: null, done: true };
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}
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else {
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return { value: buffer.shift(), done: false };
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}
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};
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ZipBufferIterator.prototype.hasValue = function () {
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return this.buffer.length > 0;
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};
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ZipBufferIterator.prototype.hasCompleted = function () {
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return this.buffer.length === 0 && this.isComplete;
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};
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ZipBufferIterator.prototype.notifyComplete = function () {
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if (this.buffer.length > 0) {
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this.isComplete = true;
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this.parent.notifyInactive();
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}
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else {
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this.destination.complete();
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}
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};
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ZipBufferIterator.prototype.notifyNext = function (innerValue) {
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this.buffer.push(innerValue);
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this.parent.checkIterators();
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};
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ZipBufferIterator.prototype.subscribe = function () {
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return innerSubscribe(this.observable, new SimpleInnerSubscriber(this));
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};
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return ZipBufferIterator;
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}(SimpleOuterSubscriber));
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//# sourceMappingURL=zip.js.map
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