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node_modules/rxjs/_esm2015/internal/ReplaySubject.js

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+import { Subject } from './Subject';
+import { queue } from './scheduler/queue';
+import { Subscription } from './Subscription';
+import { ObserveOnSubscriber } from './operators/observeOn';
+import { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';
+import { SubjectSubscription } from './SubjectSubscription';
+export class ReplaySubject extends Subject {
+    constructor(bufferSize = Number.POSITIVE_INFINITY, windowTime = Number.POSITIVE_INFINITY, scheduler) {
+        super();
+        this.scheduler = scheduler;
+        this._events = [];
+        this._infiniteTimeWindow = false;
+        this._bufferSize = bufferSize < 1 ? 1 : bufferSize;
+        this._windowTime = windowTime < 1 ? 1 : windowTime;
+        if (windowTime === Number.POSITIVE_INFINITY) {
+            this._infiniteTimeWindow = true;
+            this.next = this.nextInfiniteTimeWindow;
+        }
+        else {
+            this.next = this.nextTimeWindow;
+        }
+    }
+    nextInfiniteTimeWindow(value) {
+        const _events = this._events;
+        _events.push(value);
+        if (_events.length > this._bufferSize) {
+            _events.shift();
+        }
+        super.next(value);
+    }
+    nextTimeWindow(value) {
+        this._events.push(new ReplayEvent(this._getNow(), value));
+        this._trimBufferThenGetEvents();
+        super.next(value);
+    }
+    _subscribe(subscriber) {
+        const _infiniteTimeWindow = this._infiniteTimeWindow;
+        const _events = _infiniteTimeWindow ? this._events : this._trimBufferThenGetEvents();
+        const scheduler = this.scheduler;
+        const len = _events.length;
+        let subscription;
+        if (this.closed) {
+            throw new ObjectUnsubscribedError();
+        }
+        else if (this.isStopped || this.hasError) {
+            subscription = Subscription.EMPTY;
+        }
+        else {
+            this.observers.push(subscriber);
+            subscription = new SubjectSubscription(this, subscriber);
+        }
+        if (scheduler) {
+            subscriber.add(subscriber = new ObserveOnSubscriber(subscriber, scheduler));
+        }
+        if (_infiniteTimeWindow) {
+            for (let i = 0; i < len && !subscriber.closed; i++) {
+                subscriber.next(_events[i]);
+            }
+        }
+        else {
+            for (let i = 0; i < len && !subscriber.closed; i++) {
+                subscriber.next(_events[i].value);
+            }
+        }
+        if (this.hasError) {
+            subscriber.error(this.thrownError);
+        }
+        else if (this.isStopped) {
+            subscriber.complete();
+        }
+        return subscription;
+    }
+    _getNow() {
+        return (this.scheduler || queue).now();
+    }
+    _trimBufferThenGetEvents() {
+        const now = this._getNow();
+        const _bufferSize = this._bufferSize;
+        const _windowTime = this._windowTime;
+        const _events = this._events;
+        const eventsCount = _events.length;
+        let spliceCount = 0;
+        while (spliceCount < eventsCount) {
+            if ((now - _events[spliceCount].time) < _windowTime) {
+                break;
+            }
+            spliceCount++;
+        }
+        if (eventsCount > _bufferSize) {
+            spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);
+        }
+        if (spliceCount > 0) {
+            _events.splice(0, spliceCount);
+        }
+        return _events;
+    }
+}
+class ReplayEvent {
+    constructor(time, value) {
+        this.time = time;
+        this.value = value;
+    }
+}
+//# sourceMappingURL=ReplaySubject.js.map