gistfile1.hx

public static function getFirstPath (from:ClassType, to:ClassType):Option<Path> 
  {

    function loop(from:ClassType, to:ClassType, path:Path) 
    {
      trace(loop);

      return if (ClassTypes.eq(from, to)) {
        Some(path);
      } else {
        var fromSuper = function () 
        {
          return 
            if (from.superClass != null) 
            {


              var r = loop(from.superClass.t.get(), to, path.concat([SuperClass]));
              r;
}
            else None;
}
        
        var fromInterf = function () 
        {
          return from.interfaces.foldLeftWithIndex(
            function (acc:Option<Path>, cur, index) 
            {
              return acc.orElse(
                function () return loop(cur.t.get(), to, path.concat([InterfaceAt(index)]))
              );
            }, None);
}
        fromSuper().orElse(fromInterf);
}
}

    trace(loop);
    
    return loop(from, to, []);
}