DeepReadonly

DeepReadonly.ts

// tslint:disable

interface DeepReadonlyArray<T> extends ReadonlyArray<DeepReadonly<T>> {}

type DeepReadonlyObject<T> = T extends Function
  ? T
  : { readonly [P in keyof T]: DeepReadonly<T[P]> };
export type DeepReadonly<T> = T extends any[]
  ? DeepReadonlyArray<T[number]>
  : T extends object
  ? DeepReadonlyObject<T>
  : T;