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

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+/** PURE_IMPORTS_START tslib,_innerSubscribe PURE_IMPORTS_END */
+import * as tslib_1 from "tslib";
+import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';
+export function sample(notifier) {
+    return function (source) { return source.lift(new SampleOperator(notifier)); };
+}
+var SampleOperator = /*@__PURE__*/ (function () {
+    function SampleOperator(notifier) {
+        this.notifier = notifier;
+    }
+    SampleOperator.prototype.call = function (subscriber, source) {
+        var sampleSubscriber = new SampleSubscriber(subscriber);
+        var subscription = source.subscribe(sampleSubscriber);
+        subscription.add(innerSubscribe(this.notifier, new SimpleInnerSubscriber(sampleSubscriber)));
+        return subscription;
+    };
+    return SampleOperator;
+}());
+var SampleSubscriber = /*@__PURE__*/ (function (_super) {
+    tslib_1.__extends(SampleSubscriber, _super);
+    function SampleSubscriber() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.hasValue = false;
+        return _this;
+    }
+    SampleSubscriber.prototype._next = function (value) {
+        this.value = value;
+        this.hasValue = true;
+    };
+    SampleSubscriber.prototype.notifyNext = function () {
+        this.emitValue();
+    };
+    SampleSubscriber.prototype.notifyComplete = function () {
+        this.emitValue();
+    };
+    SampleSubscriber.prototype.emitValue = function () {
+        if (this.hasValue) {
+            this.hasValue = false;
+            this.destination.next(this.value);
+        }
+    };
+    return SampleSubscriber;
+}(SimpleOuterSubscriber));
+//# sourceMappingURL=sample.js.map