plum

import std/Str

import std/Bool

import std/Number

enum Cat =

  | Cat(name: Str, age: Int)

  fun getAge(self) -> Int =

    self.age

  fun birthday(self) -> Int =

    self.age + 1

enum Wrapper =

  | Wrapper(inner: Cat, tag: Int)

  fun innerAge(self) -> Int =

    self.inner.age

fun makeCat() -> Cat =

  Cat(name: "Whiskers", age: 3)

fun main() -> Int =

  c := makeCat()

  a := c.getAge()

  b := c.birthday()

  w := Wrapper(inner: c, tag: 1)

  a + b + w.innerAge()

test "methods example computes correctly"

  assert main() == 10