is-rw.p6

class Box2D::Vec2 is repr<CStruct> {
    has num32 $.x;
    has num32 $.y;
    multi method new(Num(Numeric) $x, Num(Numeric) $y = 0e0) {
        my $self = nqp::create(Box2D::Vec2);
        nqp::bindattr_n(nqp::decont($self), Box2D::Vec2, '$!x', nqp::unbox_n($x));
        nqp::bindattr_n(nqp::decont($self), Box2D::Vec2, '$!y', nqp::unbox_n($y));
        $self
    }
}

class Box2D::Vec2 is repr<CStruct> {
    has num32 $.x is rw;
    has num32 $.y is rw;
    multi method new(Num(Numeric) $x, Num(Numeric) $y = 0e0) {
        self.bless( :$x, :$y )
    }
}