extern func puts(fmt: cstring)

interface Printable
{
    func print()
}

interface Stringable
{
    func str(): cstring
}

struct Human : Printable, Stringable
{
    name: cstring

    func str(): cstring
    {
        return this.name
    }

    func print()
    {
        puts(this.str())
    }
}

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

    puts(human.str())
    // human.print()

    return 0
}