ts-sum-types/dist/sumType.js

Algebraic sum types for TypeScript, designed after Rust's enums

import { VariantFactory } from './variantFactory';
export function SumType(map) {
    const sumType = {};
    for (const tag in map) {
        sumType[tag] = VariantFactory(tag, map[tag]);
    }
    return sumType;
}