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node_modules/rxjs/_esm2015/internal/operators/sample.js

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+import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';
+export function sample(notifier) {
+    return (source) => source.lift(new SampleOperator(notifier));
+}
+class SampleOperator {
+    constructor(notifier) {
+        this.notifier = notifier;
+    }
+    call(subscriber, source) {
+        const sampleSubscriber = new SampleSubscriber(subscriber);
+        const subscription = source.subscribe(sampleSubscriber);
+        subscription.add(innerSubscribe(this.notifier, new SimpleInnerSubscriber(sampleSubscriber)));
+        return subscription;
+    }
+}
+class SampleSubscriber extends SimpleOuterSubscriber {
+    constructor() {
+        super(...arguments);
+        this.hasValue = false;
+    }
+    _next(value) {
+        this.value = value;
+        this.hasValue = true;
+    }
+    notifyNext() {
+        this.emitValue();
+    }
+    notifyComplete() {
+        this.emitValue();
+    }
+    emitValue() {
+        if (this.hasValue) {
+            this.hasValue = false;
+            this.destination.next(this.value);
+        }
+    }
+}
+//# sourceMappingURL=sample.js.map