interface IFoo
 {
    var testvar:Int;
    function testfunc():Void;
 }
 class Foo implements IFoo
 {
    public var testvar:Int;
    public function new(){}
    public function testfunc():Void
    {
    }
 }
class Main extends MovieClip
{
    public function new()
    {
        super();
        var f = new Foo();
    }

    public static function main()
    {
        Lib.current.addChild(new Main());
    }
}