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node_modules/rxjs/_esm5/internal/operators/sampleTime.js

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+/** PURE_IMPORTS_START tslib,_Subscriber,_scheduler_async PURE_IMPORTS_END */
+import * as tslib_1 from "tslib";
+import { Subscriber } from '../Subscriber';
+import { async } from '../scheduler/async';
+export function sampleTime(period, scheduler) {
+    if (scheduler === void 0) {
+        scheduler = async;
+    }
+    return function (source) { return source.lift(new SampleTimeOperator(period, scheduler)); };
+}
+var SampleTimeOperator = /*@__PURE__*/ (function () {
+    function SampleTimeOperator(period, scheduler) {
+        this.period = period;
+        this.scheduler = scheduler;
+    }
+    SampleTimeOperator.prototype.call = function (subscriber, source) {
+        return source.subscribe(new SampleTimeSubscriber(subscriber, this.period, this.scheduler));
+    };
+    return SampleTimeOperator;
+}());
+var SampleTimeSubscriber = /*@__PURE__*/ (function (_super) {
+    tslib_1.__extends(SampleTimeSubscriber, _super);
+    function SampleTimeSubscriber(destination, period, scheduler) {
+        var _this = _super.call(this, destination) || this;
+        _this.period = period;
+        _this.scheduler = scheduler;
+        _this.hasValue = false;
+        _this.add(scheduler.schedule(dispatchNotification, period, { subscriber: _this, period: period }));
+        return _this;
+    }
+    SampleTimeSubscriber.prototype._next = function (value) {
+        this.lastValue = value;
+        this.hasValue = true;
+    };
+    SampleTimeSubscriber.prototype.notifyNext = function () {
+        if (this.hasValue) {
+            this.hasValue = false;
+            this.destination.next(this.lastValue);
+        }
+    };
+    return SampleTimeSubscriber;
+}(Subscriber));
+function dispatchNotification(state) {
+    var subscriber = state.subscriber, period = state.period;
+    subscriber.notifyNext();
+    this.schedule(state, period);
+}
+//# sourceMappingURL=sampleTime.js.map