type Int = int | u8

struct Counter {
mut:
	value int
}

fn bump(mut values []int) {
	values << 2
}

fn inc_copy(value int) int {
	value += 1
	return value
}

fn main() {
	counter := Counter{}
	counter.value++
	arr := [1]
	arr << 2
	nums := [1]
	bump(nums)
	i := Int(0)
	if i is int {
		i = 1
	}
	match i {
		int {
			i = 2
		}
		u8 {}
	}

	println('${counter.value} ${arr.len} ${nums.len} ${inc_copy(1)} ${i}')
}