lazy

import { lazy, intersect, struct, partial, string, Comparable } from "./comparable.ts";
import { pipe } from "./fn.ts";

type Person = { name: string, child?: Person };

// Annotating the type is required for recursion
const person: Comparable<Person> = lazy('Person', () => pipe(
  struct({ name: string }),
  intersect(partial({ child: person }))
));

const icarus = { name: "Icarus" };
const daedalus = { name: "Daedalus", child: icarus };

const result1 = person.compare(icarus)(daedalus); // false
const result2 = person.compare(daedalus)(daedalus); // true