[6a3a178] | 1 | import { Notification } from '../Notification';
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| 2 | import { OperatorFunction } from '../types';
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| 3 | /**
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| 4 | * Converts an Observable of {@link Notification} objects into the emissions
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| 5 | * that they represent.
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| 6 | *
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| 7 | * <span class="informal">Unwraps {@link Notification} objects as actual `next`,
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| 8 | * `error` and `complete` emissions. The opposite of {@link materialize}.</span>
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| 9 | *
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| 10 | * ![](dematerialize.png)
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| 11 | *
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| 12 | * `dematerialize` is assumed to operate an Observable that only emits
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| 13 | * {@link Notification} objects as `next` emissions, and does not emit any
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| 14 | * `error`. Such Observable is the output of a `materialize` operation. Those
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| 15 | * notifications are then unwrapped using the metadata they contain, and emitted
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| 16 | * as `next`, `error`, and `complete` on the output Observable.
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| 17 | *
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| 18 | * Use this operator in conjunction with {@link materialize}.
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| 19 | *
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| 20 | * ## Example
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| 21 | * Convert an Observable of Notifications to an actual Observable
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| 22 | * ```ts
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| 23 | * import { of, Notification } from 'rxjs';
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| 24 | * import { dematerialize } from 'rxjs/operators';
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| 25 | *
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| 26 | * const notifA = new Notification('N', 'A');
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| 27 | * const notifB = new Notification('N', 'B');
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| 28 | * const notifE = new Notification('E', undefined,
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| 29 | * new TypeError('x.toUpperCase is not a function')
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| 30 | * );
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| 31 | * const materialized = of(notifA, notifB, notifE);
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| 32 | * const upperCase = materialized.pipe(dematerialize());
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| 33 | * upperCase.subscribe(x => console.log(x), e => console.error(e));
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| 34 | *
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| 35 | * // Results in:
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| 36 | * // A
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| 37 | * // B
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| 38 | * // TypeError: x.toUpperCase is not a function
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| 39 | * ```
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| 40 | *
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| 41 | * @see {@link Notification}
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| 42 | * @see {@link materialize}
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| 43 | *
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| 44 | * @return {Observable} An Observable that emits items and notifications
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| 45 | * embedded in Notification objects emitted by the source Observable.
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| 46 | * @method dematerialize
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| 47 | * @owner Observable
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| 48 | */
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| 49 | export declare function dematerialize<T>(): OperatorFunction<Notification<T>, T>;
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