import arrays

struct Point {
pub mut:
    x int
    y int
}

fn (p1 Point) + (p2 Point) Point {
    return Point{
        x: p1.x + p2.x
        y: p1.y + p2.y
    }
}

fn test_generic_arrays_sum() {
    ret1 := arrays.sum[Point]([Point{ x: 1, y: 1 }, Point{
        x: 2
        y: 2
    }]) or { Point{} }
    println(ret1)
    assert ret1 == Point{3, 3}

    ret2 := arrays.sum[int]([1, 2, 3, 4]) or { 0 }
    println(ret2)
    assert ret2 == 10
}