# Code coverage report for RxJS/dist/cjs/operators/windowCount.js

## Statements: 96.88% (62 / 64) Branches: 78.57% (22 / 28) Functions: 100% (12 / 12) Lines: 100% (56 / 56) Ignored: none

All files » RxJS/dist/cjs/operators/ » windowCount.js

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    1'use strict';

    exports.__esModule = true;
    exports['default'] = windowCount;

    function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

    function _inherits(subClass, superClass) { Iif (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); Eif (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

    function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

    var _Subscriber2 = require('../Subscriber');

    var _Subscriber3 = _interopRequireDefault(_Subscriber2);

    var _Subject = require('../Subject');

    var _Subject2 = _interopRequireDefault(_Subject);

    function windowCount(windowSize) {
        var startWindowEvery = arguments.length <= 1 || arguments[1] === undefined ? 0 : arguments[1];

        return this.lift(new WindowCountOperator(windowSize, startWindowEvery));
    }

    var WindowCountOperator = (function () {
        function WindowCountOperator(windowSize, startWindowEvery) {
            _classCallCheck(this, WindowCountOperator);

            this.windowSize = windowSize;
            this.startWindowEvery = startWindowEvery;
        }

        WindowCountOperator.prototype.call = function call(subscriber) {
            return new WindowCountSubscriber(subscriber, this.windowSize, this.startWindowEvery);
        };

        return WindowCountOperator;
    })();

    var WindowCountSubscriber = (function (_Subscriber) {
        _inherits(WindowCountSubscriber, _Subscriber);

        function WindowCountSubscriber(destination, windowSize, startWindowEvery) {
            _classCallCheck(this, WindowCountSubscriber);

            _Subscriber.call(this, destination);
            this.windowSize = windowSize;
            this.startWindowEvery = startWindowEvery;
            this.windows = [new _Subject2['default']()];
            this.count = 0;
            destination.next(this.windows[0]);
        }

        WindowCountSubscriber.prototype._next = function _next(value) {
            var startWindowEvery = this.startWindowEvery > 0 ? this.startWindowEvery : this.windowSize;
            var windowSize = this.windowSize;
            var windows = this.windows;
            var len = windows.length;
            for (var i = 0; i < len; i++) {
                windows[i].next(value);
            }
            var c = this.count - windowSize + 1;
            if (c >= 0 && c % startWindowEvery === 0) {
                windows.shift().complete();
            }
            if (++this.count % startWindowEvery === 0) {
                var _window = new _Subject2['default']();
                windows.push(_window);
                this.destination.next(_window);
            }
        };

        WindowCountSubscriber.prototype._error = function _error(err) {
            var windows = this.windows;
            while (windows.length > 0) {
                windows.shift().error(err);
            }
            this.destination.error(err);
        };

        WindowCountSubscriber.prototype._complete = function _complete() {
            var windows = this.windows;
            while (windows.length > 0) {
                windows.shift().complete();
            }
            this.destination.complete();
        };

        return WindowCountSubscriber;
    })(_Subscriber3['default']);

    module.exports = exports['default'];