import { Tuple } from '../../primitive';
import { MatchReadonly } from '../MatchReadonly';
/**
 *
 * Type to remove the last element from an array
 *
 * 배열의 마지막 요소를 제거하는 타입
 *
 * @param T Tuple / 튜플
 *
 * @returns Popped tuple / 제거된 튜플
 *
 * @example
 * type cases = [
 *   Expect<Equal<Pop<[3, 2, 1]>, [3, 2]>>,
 *   Expect<Equal<Pop<['a', 'b', 'c', 'd']>, ['a', 'b', 'c']>>,
 *   Expect<Equal<Pop<[]>, []>>,
 * ]
 *
 * @link https://www.utilscript.site/docs/usage-array/pop
 *
 */
export type Pop<T extends Tuple> = T extends [...infer First, unknown] ? First : T extends readonly [...infer ReadonlyFirst, unknown] ? readonly [...ReadonlyFirst] : MatchReadonly<T, []>;