json-expression-eval/dist/types/paths.d.ts

json serializable rule engine / boolean expression evaluator

import { BuiltIn, Cast, Keys, List, Primitive } from './utils';
type UnionOf<A> = A extends List ? A[number] : Exclude<A[keyof A], undefined>;
type _PathsRequired<O, P extends List, Ignore, K extends PropertyKey> = UnionOf<{
    [k in keyof O]: k extends K ? O[k] extends BuiltIn | Primitive | Ignore ? [...P, k] : [
        Keys<O[k]>
    ] extends [never] ? [...P, k] : 12 extends P['length'] ? [...P, k] : _PathsRequired<O[k], [...P, k], Ignore, K> : never;
}>;
export type Paths<O, P extends List = [], Ignore = never, K extends PropertyKey = PropertyKey> = _PathsRequired<O, P, Ignore, K> extends infer X ? Cast<X, List<K>> : never;
export {};