[6a3a178] | 1 | /** PURE_IMPORTS_START tslib,_Subscriber PURE_IMPORTS_END */
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| 2 | import * as tslib_1 from "tslib";
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| 3 | import { Subscriber } from '../Subscriber';
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| 4 | export function count(predicate) {
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| 5 | return function (source) { return source.lift(new CountOperator(predicate, source)); };
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| 6 | }
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| 7 | var CountOperator = /*@__PURE__*/ (function () {
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| 8 | function CountOperator(predicate, source) {
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| 9 | this.predicate = predicate;
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| 10 | this.source = source;
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| 11 | }
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| 12 | CountOperator.prototype.call = function (subscriber, source) {
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| 13 | return source.subscribe(new CountSubscriber(subscriber, this.predicate, this.source));
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| 14 | };
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| 15 | return CountOperator;
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| 16 | }());
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| 17 | var CountSubscriber = /*@__PURE__*/ (function (_super) {
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| 18 | tslib_1.__extends(CountSubscriber, _super);
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| 19 | function CountSubscriber(destination, predicate, source) {
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| 20 | var _this = _super.call(this, destination) || this;
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| 21 | _this.predicate = predicate;
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| 22 | _this.source = source;
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| 23 | _this.count = 0;
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| 24 | _this.index = 0;
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| 25 | return _this;
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| 26 | }
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| 27 | CountSubscriber.prototype._next = function (value) {
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| 28 | if (this.predicate) {
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| 29 | this._tryPredicate(value);
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| 30 | }
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| 31 | else {
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| 32 | this.count++;
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| 33 | }
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| 34 | };
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| 35 | CountSubscriber.prototype._tryPredicate = function (value) {
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| 36 | var result;
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| 37 | try {
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| 38 | result = this.predicate(value, this.index++, this.source);
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| 39 | }
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| 40 | catch (err) {
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| 41 | this.destination.error(err);
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| 42 | return;
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| 43 | }
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| 44 | if (result) {
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| 45 | this.count++;
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| 46 | }
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| 47 | };
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| 48 | CountSubscriber.prototype._complete = function () {
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| 49 | this.destination.next(this.count);
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| 50 | this.destination.complete();
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| 51 | };
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| 52 | return CountSubscriber;
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| 53 | }(Subscriber));
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| 54 | //# sourceMappingURL=count.js.map
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