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

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+/** PURE_IMPORTS_START tslib,_Subscriber,_Subject PURE_IMPORTS_END */
+import * as tslib_1 from "tslib";
+import { Subscriber } from '../Subscriber';
+import { Subject } from '../Subject';
+export function windowCount(windowSize, startWindowEvery) {
+    if (startWindowEvery === void 0) {
+        startWindowEvery = 0;
+    }
+    return function windowCountOperatorFunction(source) {
+        return source.lift(new WindowCountOperator(windowSize, startWindowEvery));
+    };
+}
+var WindowCountOperator = /*@__PURE__*/ (function () {
+    function WindowCountOperator(windowSize, startWindowEvery) {
+        this.windowSize = windowSize;
+        this.startWindowEvery = startWindowEvery;
+    }
+    WindowCountOperator.prototype.call = function (subscriber, source) {
+        return source.subscribe(new WindowCountSubscriber(subscriber, this.windowSize, this.startWindowEvery));
+    };
+    return WindowCountOperator;
+}());
+var WindowCountSubscriber = /*@__PURE__*/ (function (_super) {
+    tslib_1.__extends(WindowCountSubscriber, _super);
+    function WindowCountSubscriber(destination, windowSize, startWindowEvery) {
+        var _this = _super.call(this, destination) || this;
+        _this.destination = destination;
+        _this.windowSize = windowSize;
+        _this.startWindowEvery = startWindowEvery;
+        _this.windows = [new Subject()];
+        _this.count = 0;
+        destination.next(_this.windows[0]);
+        return _this;
+    }
+    WindowCountSubscriber.prototype._next = function (value) {
+        var startWindowEvery = (this.startWindowEvery > 0) ? this.startWindowEvery : this.windowSize;
+        var destination = this.destination;
+        var windowSize = this.windowSize;
+        var windows = this.windows;
+        var len = windows.length;
+        for (var i = 0; i < len && !this.closed; i++) {
+            windows[i].next(value);
+        }
+        var c = this.count - windowSize + 1;
+        if (c >= 0 && c % startWindowEvery === 0 && !this.closed) {
+            windows.shift().complete();
+        }
+        if (++this.count % startWindowEvery === 0 && !this.closed) {
+            var window_1 = new Subject();
+            windows.push(window_1);
+            destination.next(window_1);
+        }
+    };
+    WindowCountSubscriber.prototype._error = function (err) {
+        var windows = this.windows;
+        if (windows) {
+            while (windows.length > 0 && !this.closed) {
+                windows.shift().error(err);
+            }
+        }
+        this.destination.error(err);
+    };
+    WindowCountSubscriber.prototype._complete = function () {
+        var windows = this.windows;
+        if (windows) {
+            while (windows.length > 0 && !this.closed) {
+                windows.shift().complete();
+            }
+        }
+        this.destination.complete();
+    };
+    WindowCountSubscriber.prototype._unsubscribe = function () {
+        this.count = 0;
+        this.windows = null;
+    };
+    return WindowCountSubscriber;
+}(Subscriber));
+//# sourceMappingURL=windowCount.js.map