import { Subscriber } from '../Subscriber'; import { Subscription } from '../Subscription'; /** * Returns an Observable that mirrors the source Observable, but will call a specified function when * the source terminates on complete or error. * @param {function} callback Function to be called when source terminates. * @return {Observable} An Observable that mirrors the source, but will call the specified function on termination. * @method finally * @owner Observable */ export function finalize(callback) { return (source) => source.lift(new FinallyOperator(callback)); } class FinallyOperator { constructor(callback) { this.callback = callback; } call(subscriber, source) { return source.subscribe(new FinallySubscriber(subscriber, this.callback)); } } /** * We need this JSDoc comment for affecting ESDoc. * @ignore * @extends {Ignored} */ class FinallySubscriber extends Subscriber { constructor(destination, callback) { super(destination); this.add(new Subscription(callback)); } } //# sourceMappingURL=finalize.js.map