dynamodb-toolbox/dist/cjs/types/listOf.d.ts

Lightweight and type-safe query builder for DynamoDB and TypeScript.

import type { Cast } from './cast.js';
import type { Extends } from './extends.js';
type IntersectOf<UNION> = (UNION extends unknown ? (arg: UNION) => void : never) extends (arg: infer INTERSECTION) => void ? INTERSECTION : never;
type Last<UNION> = IntersectOf<UNION extends unknown ? (arg: UNION) => void : never> extends (arg: infer LAST_ELEMENT) => void ? LAST_ELEMENT : never;
type ListOfRec<UNION, RESULTS extends ReadonlyArray<any> = [], LAST_ELEMENT = Last<UNION>> = Extends<[UNION], [never]> extends true ? RESULTS : ListOfRec<Exclude<UNION, LAST_ELEMENT>, [LAST_ELEMENT, ...RESULTS]>;
/**
 * Transform a Union into a List
 *
 * (⚠️ it might not preserve order)
 */
export type ListOf<UNION> = ListOfRec<UNION> extends infer ELEMENT ? Cast<ELEMENT, ReadonlyArray<any>> : never;
export {};