/** PURE_IMPORTS_START .._operators_materialize PURE_IMPORTS_END */ import { materialize as higherOrder } from '../operators/materialize'; /** * Represents all of the notifications from the source Observable as `next` * emissions marked with their original types within {@link Notification} * objects. * * Wraps `next`, `error` and `complete` emissions in * {@link Notification} objects, emitted as `next` on the output Observable. * * * * * `materialize` returns an Observable that emits a `next` notification for each * `next`, `error`, or `complete` emission of the source Observable. When the * source Observable emits `complete`, the output Observable will emit `next` as * a Notification of type "complete", and then it will emit `complete` as well. * When the source Observable emits `error`, the output will emit `next` as a * Notification of type "error", and then `complete`. * * This operator is useful for producing metadata of the source Observable, to * be consumed as `next` emissions. Use it in conjunction with * {@link dematerialize}. * * @example