AsyncSubject.js 1.59 KB
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/** PURE_IMPORTS_START tslib,_Subject,_Subscription PURE_IMPORTS_END */
import * as tslib_1 from "tslib";
import { Subject } from './Subject';
import { Subscription } from './Subscription';
var AsyncSubject = /*@__PURE__*/ (function (_super) {
    tslib_1.__extends(AsyncSubject, _super);
    function AsyncSubject() {
        var _this = _super !== null && _super.apply(this, arguments) || this;
        _this.value = null;
        _this.hasNext = false;
        _this.hasCompleted = false;
        return _this;
    }
    AsyncSubject.prototype._subscribe = function (subscriber) {
        if (this.hasError) {
            subscriber.error(this.thrownError);
            return Subscription.EMPTY;
        }
        else if (this.hasCompleted && this.hasNext) {
            subscriber.next(this.value);
            subscriber.complete();
            return Subscription.EMPTY;
        }
        return _super.prototype._subscribe.call(this, subscriber);
    };
    AsyncSubject.prototype.next = function (value) {
        if (!this.hasCompleted) {
            this.value = value;
            this.hasNext = true;
        }
    };
    AsyncSubject.prototype.error = function (error) {
        if (!this.hasCompleted) {
            _super.prototype.error.call(this, error);
        }
    };
    AsyncSubject.prototype.complete = function () {
        this.hasCompleted = true;
        if (this.hasNext) {
            _super.prototype.next.call(this, this.value);
        }
        _super.prototype.complete.call(this);
    };
    return AsyncSubject;
}(Subject));
export { AsyncSubject };
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