* ts-ignore --> ts-expect-error * fix error with mutable array * fix errors in consumers code * update SOM * fix FeatureConfig & Feature compatibility * do not re-export from code. it breaks built version * update docs * add eslint rule for platform team code * remove test. this is covered by ts-expect-error in unit tests Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
100 lines
3 KiB
TypeScript
100 lines
3 KiB
TypeScript
/*
|
|
* Licensed to Elasticsearch B.V. under one or more contributor
|
|
* license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright
|
|
* ownership. Elasticsearch B.V. licenses this file to you under
|
|
* the Apache License, Version 2.0 (the "License"); you may
|
|
* not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing,
|
|
* software distributed under the License is distributed on an
|
|
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
* KIND, either express or implied. See the License for the
|
|
* specific language governing permissions and limitations
|
|
* under the License.
|
|
*/
|
|
|
|
import { PromiseType } from 'utility-types';
|
|
export { $Values, Assign, Class, Optional, Required } from 'utility-types';
|
|
|
|
/**
|
|
* A type that may or may not be a `Promise`.
|
|
*/
|
|
export type MaybePromise<T> = T | Promise<T>;
|
|
|
|
/**
|
|
* Converts a type to a `Promise`, unless it is already a `Promise`. Useful when proxying the return value of a possibly async function.
|
|
*/
|
|
export type ShallowPromise<T> = T extends Promise<infer U> ? Promise<U> : Promise<T>;
|
|
|
|
/**
|
|
* Returns wrapped type of a `Promise`.
|
|
*/
|
|
export type UnwrapPromise<T extends Promise<any>> = PromiseType<T>;
|
|
|
|
/**
|
|
* Returns wrapped type of a promise, or returns type as is, if it is not a promise.
|
|
*/
|
|
export type UnwrapPromiseOrReturn<T> = T extends Promise<infer U> ? U : T;
|
|
|
|
/**
|
|
* Minimal interface for an object resembling an `Observable`.
|
|
*/
|
|
export interface ObservableLike<T> {
|
|
subscribe(observer: (value: T) => void): void;
|
|
}
|
|
|
|
/**
|
|
* Returns wrapped type of an observable.
|
|
*/
|
|
export type UnwrapObservable<T extends ObservableLike<any>> = T extends ObservableLike<infer U>
|
|
? U
|
|
: never;
|
|
|
|
/**
|
|
* Ensures T is of type X.
|
|
*/
|
|
export type Ensure<T, X> = T extends X ? T : never;
|
|
|
|
// If we define this inside RecursiveReadonly TypeScript complains.
|
|
// eslint-disable-next-line @typescript-eslint/no-empty-interface
|
|
export interface RecursiveReadonlyArray<T> extends ReadonlyArray<RecursiveReadonly<T>> {}
|
|
|
|
export type RecursiveReadonly<T> = T extends (...args: any) => any
|
|
? T
|
|
: T extends any[]
|
|
? RecursiveReadonlyArray<T[number]>
|
|
: T extends object
|
|
? Readonly<{ [K in keyof T]: RecursiveReadonly<T[K]> }>
|
|
: T;
|
|
|
|
/**
|
|
* Returns types or array or object values.
|
|
*/
|
|
export type Values<T> = T extends any[] ? T[number] : T extends object ? T[keyof T] : never;
|
|
|
|
/**
|
|
* Utility type for converting a union of types into an intersection.
|
|
*
|
|
* This is a bit of "black magic" that will interpret a Union type as an Intersection
|
|
* type. This is necessary in the case of distinguishing one collection from
|
|
* another.
|
|
*/
|
|
export type UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends (
|
|
k: infer I
|
|
) => void
|
|
? I
|
|
: never;
|
|
|
|
/**
|
|
* Returns public keys of an object.
|
|
*/
|
|
export type PublicKeys<T> = keyof T;
|
|
|
|
/**
|
|
* Returns an object with public keys only.
|
|
*/
|
|
export type PublicContract<T> = Pick<T, PublicKeys<T>>;
|