//! returns: 0
//! Methods returning various types and records.

record Pair {
    a: i32,
    b: i32,
}

fn (p: *Pair) sum() -> i32 {
    return p.a + p.b;
}

fn (p: *Pair) swapped() -> Pair {
    return Pair { a: p.b, b: p.a };
}

fn (p: *Pair) firstPtr() -> *i32 {
    return &p.a;
}

@default fn main() -> i32 {
    let pair = Pair { a: 10, b: 20 };

    // Scalar return.
    assert pair.sum() == 30;

    // Aggregate return.
    let s = pair.swapped();
    assert s.a == 20;
    assert s.b == 10;

    // Pointer return.
    let ptr = pair.firstPtr();
    assert *ptr == 10;

    return 0;
}