index.ts

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

import * as tags from './literals';
import * as strings from './strings';

export * from './object';
export * from './template';
export * from './partially-ordered-set';
export * from './priority-queue';
export * from './lang';

export { tags, strings };

export type DeepReadonly<T> = T extends (infer R)[]
  ? DeepReadonlyArray<R>
  : T extends Function
  ? T
  : T extends object
  ? DeepReadonlyObject<T>
  : T;

// This should be ReadonlyArray but it has implications.
// eslint-disable-next-line @typescript-eslint/no-empty-interface
export interface DeepReadonlyArray<T> extends Array<DeepReadonly<T>> {}

export type DeepReadonlyObject<T> = {
  readonly [P in keyof T]: DeepReadonly<T[P]>;
};

export type Readwrite<T> = {
  -readonly [P in keyof T]: T[P];
};