enum Color {
    red
    green
    blue
}

struct St1 {}

struct St2 {}

type St = St1 | St2

fn test_sum_type(i St) {
    match i {
        St1 { println('St1') }
        St1 { println('St1') }
        St2 { println('St2') }
    }
    match i {
        St1 { println('St1') }
        St1 { println('St1') }
        else { println('else') }
    }
}

fn test_enum(c Color) {
    match c {
        .red { println('red') }
        .green { println('green') }
        .green { println('green') }
        .blue { println('blue') }
    }
    match c {
        .red, .green { println('red green') }
        .green { println('green') }
        else { println('else') }
    }
}

fn test_int(i int) {
    match i {
        1 { println('1') }
        2 { println('2') }
        2 { println('3') }
        else { println('else') }
    }
}

fn test_range(i int) {
    match i {
        1...5 { println('1 to 5') }
        3 { println('3') }
        else { println('else') }
    }
}

fn main() {
    test_sum_type(St1{})
    test_enum(.red)
    test_int(2)
    test_range(4)
}