extern func puts(fmt: cstring)

interface Printable
{
    func print()
}

struct Human : Printable
{
    name: cstring

    func print()
    {
        puts(this^.name)
    }
}

func main(args: []cstring): i64
{
    let human = alloc Human {
        name = "oliver"
    }

    human.print()
    print_printable(human)
    return 0
}

func print_printable(printable: Printable)
{
    printable.print()
}