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