[Vala] [Genie] Anonymous functions

[Chris Molozian <chris cmoz me>]

Hey,

I'm starting to get the hang of Genie programming, there's still a few 
things I can't see how to do. How would I create an anonymous function? 
e.g. What's the Genie equivalent to:

delegate int Comparator(int a, int b);

void my_sorting_algorithm(int[] data, Comparator compare) {
    // ... 'compare' is called somewhere in here ...
}

void main() {
    int[] data = { 3, 9, 2, 7, 5 };
    // An anonymous method is passed as the second argument:
    my_sorting_algorithm(data, (a, b) => {
        if (a < b) return -1;
        if (a > b) return 1;
        return 0;
    });
}

Regards,

Chris