Code coverage report for cjs/operator/delay.js

Statements: 98.57% (69 / 70)      Branches: 84.21% (16 / 19)      Functions: 100% (16 / 16)      Lines: 98.48% (65 / 66)      Ignored: none     

All files » cjs/operator/ » delay.js
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var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) Eif (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var asap_1 = require('../scheduler/asap');
var isDate_1 = require('../util/isDate');
var Subscriber_1 = require('../Subscriber');
var Notification_1 = require('../Notification');
/**
 * Returns an Observable that delays the emission of items from the source Observable
 * by a given timeout or until a given Date.
 * @param {number|Date} delay the timeout value or date until which the emission of the source items is delayed.
 * @param {Scheduler} [scheduler] the Scheduler to use for managing the timers that handle the timeout for each item.
 * @returns {Observable} an Observable that delays the emissions of the source Observable by the specified timeout or Date.
 */
function delay(delay, scheduler) {
    if (scheduler === void 0) { scheduler = asap_1.asap; }
    var absoluteDelay = isDate_1.isDate(delay);
    var delayFor = absoluteDelay ? (+delay - scheduler.now()) : Math.abs(delay);
    return this.lift(new DelayOperator(delayFor, scheduler));
}
exports.delay = delay;
var DelayOperator = (function () {
    function DelayOperator(delay, scheduler) {
        this.delay = delay;
        this.scheduler = scheduler;
    }
    DelayOperator.prototype.call = function (subscriber) {
        return new DelaySubscriber(subscriber, this.delay, this.scheduler);
    };
    return DelayOperator;
})();
var DelaySubscriber = (function (_super) {
    __extends(DelaySubscriber, _super);
    function DelaySubscriber(destination, delay, scheduler) {
        _super.call(this, destination);
        this.delay = delay;
        this.scheduler = scheduler;
        this.queue = [];
        this.active = false;
        this.errored = false;
    }
    DelaySubscriber.dispatch = function (state) {
        var source = state.source;
        var queue = source.queue;
        var scheduler = state.scheduler;
        var destination = state.destination;
        while (queue.length > 0 && (queue[0].time - scheduler.now()) <= 0) {
            queue.shift().notification.observe(destination);
        }
        if (queue.length > 0) {
            var delay_1 = Math.max(0, queue[0].time - scheduler.now());
            this.schedule(state, delay_1);
        }
        else {
            source.active = false;
        }
    };
    DelaySubscriber.prototype._schedule = function (scheduler) {
        this.active = true;
        this.add(scheduler.schedule(DelaySubscriber.dispatch, this.delay, {
            source: this, destination: this.destination, scheduler: scheduler
        }));
    };
    DelaySubscriber.prototype.scheduleNotification = function (notification) {
        Iif (this.errored === true) {
            return;
        }
        var scheduler = this.scheduler;
        var message = new DelayMessage(scheduler.now() + this.delay, notification);
        this.queue.push(message);
        if (this.active === false) {
            this._schedule(scheduler);
        }
    };
    DelaySubscriber.prototype._next = function (value) {
        this.scheduleNotification(Notification_1.Notification.createNext(value));
    };
    DelaySubscriber.prototype._error = function (err) {
        this.errored = true;
        this.queue = [];
        this.destination.error(err);
    };
    DelaySubscriber.prototype._complete = function () {
        this.scheduleNotification(Notification_1.Notification.createComplete());
    };
    return DelaySubscriber;
})(Subscriber_1.Subscriber);
var DelayMessage = (function () {
    function DelayMessage(time, notification) {
        this.time = time;
        this.notification = notification;
    }
    return DelayMessage;
})();
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