update

node_modules/rxjs/_esm5/operators/audit.js

@@ -0,0 +1,119 @@
+/** PURE_IMPORTS_START .._util_tryCatch,.._util_errorObject,.._OuterSubscriber,.._util_subscribeToResult PURE_IMPORTS_END */
+var __extends = (this && this.__extends) || function (d, b) {
+    for (var p in b)
+        if (b.hasOwnProperty(p))
+            d[p] = b[p];
+    function __() { this.constructor = d; }
+    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+};
+import { tryCatch } from '../util/tryCatch';
+import { errorObject } from '../util/errorObject';
+import { OuterSubscriber } from '../OuterSubscriber';
+import { subscribeToResult } from '../util/subscribeToResult';
+/**
+ * Ignores source values for a duration determined by another Observable, then
+ * emits the most recent value from the source Observable, then repeats this
+ * process.
+ *
+ * <span class="informal">It's like {@link auditTime}, but the silencing
+ * duration is determined by a second Observable.</span>
+ *
+ * <img src="./img/audit.png" width="100%">
+ *
+ * `audit` is similar to `throttle`, but emits the last value from the silenced
+ * time window, instead of the first value. `audit` emits the most recent value
+ * from the source Observable on the output Observable as soon as its internal
+ * timer becomes disabled, and ignores source values while the timer is enabled.
+ * Initially, the timer is disabled. As soon as the first source value arrives,
+ * the timer is enabled by calling the `durationSelector` function with the
+ * source value, which returns the "duration" Observable. When the duration
+ * Observable emits a value or completes, the timer is disabled, then the most
+ * recent source value is emitted on the output Observable, and this process
+ * repeats for the next source value.
+ *
+ * @example <caption>Emit clicks at a rate of at most one click per second</caption>
+ * var clicks = Rx.Observable.fromEvent(document, 'click');
+ * var result = clicks.audit(ev => Rx.Observable.interval(1000));
+ * result.subscribe(x => console.log(x));
+ *
+ * @see {@link auditTime}
+ * @see {@link debounce}
+ * @see {@link delayWhen}
+ * @see {@link sample}
+ * @see {@link throttle}
+ *
+ * @param {function(value: T): SubscribableOrPromise} durationSelector A function
+ * that receives a value from the source Observable, for computing the silencing
+ * duration, returned as an Observable or a Promise.
+ * @return {Observable<T>} An Observable that performs rate-limiting of
+ * emissions from the source Observable.
+ * @method audit
+ * @owner Observable
+ */
+export function audit(durationSelector) {
+    return function auditOperatorFunction(source) {
+        return source.lift(new AuditOperator(durationSelector));
+    };
+}
+var AuditOperator = /*@__PURE__*/ (/*@__PURE__*/ function () {
+    function AuditOperator(durationSelector) {
+        this.durationSelector = durationSelector;
+    }
+    AuditOperator.prototype.call = function (subscriber, source) {
+        return source.subscribe(new AuditSubscriber(subscriber, this.durationSelector));
+    };
+    return AuditOperator;
+}());
+/**
+ * We need this JSDoc comment for affecting ESDoc.
+ * @ignore
+ * @extends {Ignored}
+ */
+var AuditSubscriber = /*@__PURE__*/ (/*@__PURE__*/ function (_super) {
+    __extends(AuditSubscriber, _super);
+    function AuditSubscriber(destination, durationSelector) {
+        _super.call(this, destination);
+        this.durationSelector = durationSelector;
+        this.hasValue = false;
+    }
+    AuditSubscriber.prototype._next = function (value) {
+        this.value = value;
+        this.hasValue = true;
+        if (!this.throttled) {
+            var duration = tryCatch(this.durationSelector)(value);
+            if (duration === errorObject) {
+                this.destination.error(errorObject.e);
+            }
+            else {
+                var innerSubscription = subscribeToResult(this, duration);
+                if (innerSubscription.closed) {
+                    this.clearThrottle();
+                }
+                else {
+                    this.add(this.throttled = innerSubscription);
+                }
+            }
+        }
+    };
+    AuditSubscriber.prototype.clearThrottle = function () {
+        var _a = this, value = _a.value, hasValue = _a.hasValue, throttled = _a.throttled;
+        if (throttled) {
+            this.remove(throttled);
+            this.throttled = null;
+            throttled.unsubscribe();
+        }
+        if (hasValue) {
+            this.value = null;
+            this.hasValue = false;
+            this.destination.next(value);
+        }
+    };
+    AuditSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex) {
+        this.clearThrottle();
+    };
+    AuditSubscriber.prototype.notifyComplete = function () {
+        this.clearThrottle();
+    };
+    return AuditSubscriber;
+}(OuterSubscriber));
+//# sourceMappingURL=audit.js.map