metro/flow-typed/Promise.js

40 lines
1.1 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
* @nolint
* @format
*/
/* eslint-disable */
// These annotations are copy/pasted from the built-in Flow definitions and
// tweaked so that then() and catch() accept `null` arguments, that they
// rightfully do. This should probably be changed in the core lib eventually.
declare class Promise<+R> {
constructor(
callback: (
resolve: (result?: Promise<R> | R) => void,
reject: (error?: any) => void,
) => mixed,
): void;
then<U>(
onFulfill?: ?(value: R) => Promise<U> | ?U,
onReject?: ?(error: any) => Promise<U> | ?U,
): Promise<U>;
catch<U>(onReject?: (error: any) => ?Promise<U> | U): Promise<U>;
static resolve<T>(object?: Promise<T> | T): Promise<T>;
static reject<T>(error?: mixed): Promise<T>;
static all<T: Iterable<mixed>>(
promises: T,
): Promise<$TupleMap<T, typeof $await>>;
static race<T>(promises: Array<Promise<T>>): Promise<T>;
}