@betalyra/ts-variant/dist/src/index.d.ts

Polymorphic variants for typescript

import { type Head, type Tail, AnyArray } from "ts-essentials";
type UnionToIntersection<U> = (U extends never ? never : (arg: U) => never) extends (arg: infer I) => void ? I : never;
type UnionToTuple<T, A extends any[] = []> = UnionToIntersection<T extends never ? never : (t: T) => T> extends (_: never) => infer W ? UnionToTuple<Exclude<T, W>, [...A, W]> : A;
type VariantElem<U extends keyof V, V> = Pick<V, U>[U] extends infer P ? P extends undefined ? {
    type: U;
} : {
    type: U;
    value: Pick<V, U>[U];
} : never;
export type Variant<V extends Record<string, any>> = UnionToTuple<keyof V> extends infer L ? L extends AnyArray ? Head<L> extends infer U ? U extends string ? Tail<L> extends infer T ? T extends string[] ? VariantElem<U, V> | Variant<Omit<V, U>> : VariantElem<U, V> : never : never : never : never : never;
export {};
//# sourceMappingURL=index.d.ts.map