plum

enum Color =
  | Red
  | Green
  | Blue

enum Option =
  | Some[Int]
  | None

fun describeNumber(n: Int) -> Str =
  match n
    0 =>
      "zero"
    1 =>
      "one"
    _ =>
      "many"

fun describeBool(b: Bool) -> Int =
  match b
    True =>
      1
    False =>
      0

fun bindExample(n: Int) -> Int =
  match n
    x =>
      x

fun describeColor(c: Color) -> Str =
  match c
    Red =>
      "red"
    Green =>
      "green"
    Blue =>
      "blue"

fun describeOption(opt: Option) -> Int =
  match opt
    Some(v) =>
      v
    None =>
      0

fun main() -> Int =
  describeOption(Some(5))