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

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+import { Subscriber } from '../Subscriber';
+import { Subject } from '../Subject';
+export function windowCount(windowSize, startWindowEvery = 0) {
+    return function windowCountOperatorFunction(source) {
+        return source.lift(new WindowCountOperator(windowSize, startWindowEvery));
+    };
+}
+class WindowCountOperator {
+    constructor(windowSize, startWindowEvery) {
+        this.windowSize = windowSize;
+        this.startWindowEvery = startWindowEvery;
+    }
+    call(subscriber, source) {
+        return source.subscribe(new WindowCountSubscriber(subscriber, this.windowSize, this.startWindowEvery));
+    }
+}
+class WindowCountSubscriber extends Subscriber {
+    constructor(destination, windowSize, startWindowEvery) {
+        super(destination);
+        this.destination = destination;
+        this.windowSize = windowSize;
+        this.startWindowEvery = startWindowEvery;
+        this.windows = [new Subject()];
+        this.count = 0;
+        destination.next(this.windows[0]);
+    }
+    _next(value) {
+        const startWindowEvery = (this.startWindowEvery > 0) ? this.startWindowEvery : this.windowSize;
+        const destination = this.destination;
+        const windowSize = this.windowSize;
+        const windows = this.windows;
+        const len = windows.length;
+        for (let i = 0; i < len && !this.closed; i++) {
+            windows[i].next(value);
+        }
+        const c = this.count - windowSize + 1;
+        if (c >= 0 && c % startWindowEvery === 0 && !this.closed) {
+            windows.shift().complete();
+        }
+        if (++this.count % startWindowEvery === 0 && !this.closed) {
+            const window = new Subject();
+            windows.push(window);
+            destination.next(window);
+        }
+    }
+    _error(err) {
+        const windows = this.windows;
+        if (windows) {
+            while (windows.length > 0 && !this.closed) {
+                windows.shift().error(err);
+            }
+        }
+        this.destination.error(err);
+    }
+    _complete() {
+        const windows = this.windows;
+        if (windows) {
+            while (windows.length > 0 && !this.closed) {
+                windows.shift().complete();
+            }
+        }
+        this.destination.complete();
+    }
+    _unsubscribe() {
+        this.count = 0;
+        this.windows = null;
+    }
+}
+//# sourceMappingURL=windowCount.js.map