/** PURE_IMPORTS_START .._Subscriber,.._scheduler_async PURE_IMPORTS_END */
var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b)
        if (b.hasOwnProperty(p))
            d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
import { Subscriber } from '../Subscriber';
import { async } from '../scheduler/async';
export function timeInterval(scheduler) {
    if (scheduler === void 0) {
        scheduler = async;
    }
    return function (source) { return source.lift(new TimeIntervalOperator(scheduler)); };
}
export var TimeInterval = /*@__PURE__*/ (/*@__PURE__*/ function () {
    function TimeInterval(value, interval) {
        this.value = value;
        this.interval = interval;
    }
    return TimeInterval;
}());
;
var TimeIntervalOperator = /*@__PURE__*/ (/*@__PURE__*/ function () {
    function TimeIntervalOperator(scheduler) {
        this.scheduler = scheduler;
    }
    TimeIntervalOperator.prototype.call = function (observer, source) {
        return source.subscribe(new TimeIntervalSubscriber(observer, this.scheduler));
    };
    return TimeIntervalOperator;
}());
/**
 * We need this JSDoc comment for affecting ESDoc.
 * @ignore
 * @extends {Ignored}
 */
var TimeIntervalSubscriber = /*@__PURE__*/ (/*@__PURE__*/ function (_super) {
    __extends(TimeIntervalSubscriber, _super);
    function TimeIntervalSubscriber(destination, scheduler) {
        _super.call(this, destination);
        this.scheduler = scheduler;
        this.lastTime = 0;
        this.lastTime = scheduler.now();
    }
    TimeIntervalSubscriber.prototype._next = function (value) {
        var now = this.scheduler.now();
        var span = now - this.lastTime;
        this.lastTime = now;
        this.destination.next(new TimeInterval(value, span));
    };
    return TimeIntervalSubscriber;
}(Subscriber));
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