# Code coverage report for RxJS/dist/cjs/schedulers/VirtualTimeScheduler.js

## Statements: 94.95% (94 / 99) Branches: 77.5% (31 / 40) Functions: 100% (15 / 15) Lines: 97.78% (88 / 90) Ignored: none

All files » RxJS/dist/cjs/schedulers/ » VirtualTimeScheduler.js

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    1'use strict';

    exports.__esModule = true;

    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 _Subscription2 = require('../Subscription');

    var _Subscription3 = _interopRequireDefault(_Subscription2);

    var VirtualTimeScheduler = (function () {
        function VirtualTimeScheduler() {
            _classCallCheck(this, VirtualTimeScheduler);

            this.actions = [];
            this.active = false;
            this.scheduled = false;
            this.index = 0;
            this.sorted = false;
            this.frame = 0;
            this.maxFrames = 750;
        }

        VirtualTimeScheduler.prototype.now = function now() {
            return this.frame;
        };

        VirtualTimeScheduler.prototype.flush = function flush() {
            var actions = this.actions;
            var maxFrames = this.maxFrames;
            while (actions.length > 0) {
                var action = actions.shift();
                this.frame = action.delay;
                if (this.frame <= maxFrames) {
                    action.execute();
                } else {
                    break;
                }
            }
            actions.length = 0;
            this.frame = 0;
        };

        VirtualTimeScheduler.prototype.addAction = function addAction(action) {
            var findDelay = action.delay;
            var actions = this.actions;
            var len = actions.length;
            var vaction = action;
            actions.push(action);
            actions.sort(function (a, b) {
                if (a.delay === b.delay) {
                    if (a.index === b.index) {
                        return 0;
                    } else if (a.index > b.index) {
                        return 1;
                    } else {
                        return -1;
                    }
                } else if (a.delay > b.delay) {
                    return 1;
                } else {
                    return -1;
                }
            });
        };

        VirtualTimeScheduler.prototype.schedule = function schedule(work, delay, state) {
            Iif (delay === undefined) delay = 0;

            this.sorted = false;
            return new VirtualAction(this, work, this.index++).schedule(state, delay);
        };

        return VirtualTimeScheduler;
    })();

    exports['default'] = VirtualTimeScheduler;

    VirtualTimeScheduler.frameTimeFactor = 10;

    var VirtualAction = (function (_Subscription) {
        _inherits(VirtualAction, _Subscription);

        function VirtualAction(scheduler, work, index) {
            _classCallCheck(this, VirtualAction);

            _Subscription.call(this);
            this.scheduler = scheduler;
            this.work = work;
            this.index = index;
            this.calls = 0;
        }

        VirtualAction.prototype.schedule = function schedule(state) {
            var delay = arguments.length <= 1 || arguments[1] === undefined ? 0 : arguments[1];

            Iif (this.isUnsubscribed) {
                return this;
            }
            var scheduler = this.scheduler;
            var action = undefined;
            if (this.calls++ === 0) {
                // the action is not being rescheduled.
                action = this;
            } else {
                // the action is being rescheduled, and we can't mutate the one in the actions list
                // in the scheduler, so we'll create a new one.
                action = new VirtualAction(scheduler, this.work, scheduler.index += 1);
                this.add(action);
            }
            action.state = state;
            action.delay = scheduler.frame + delay;
            scheduler.addAction(action);
            return this;
        };

        VirtualAction.prototype.execute = function execute() {
            Iif (this.isUnsubscribed) {
                throw new Error('How did did we execute a canceled Action?');
            }
            this.work(this.state);
        };

        VirtualAction.prototype.unsubscribe = function unsubscribe() {
            var actions = this.scheduler.actions;
            var index = actions.indexOf(this);
            this.work = void 0;
            this.state = void 0;
            this.scheduler = void 0;
            if (index !== -1) {
                actions.splice(index, 1);
            }
            _Subscription.prototype.unsubscribe.call(this);
        };

        return VirtualAction;
    })(_Subscription3['default']);

    module.exports = exports['default'];