Haxe

interface ICreature {
    public var birth:Date;
    public var name:String;

    public function age():Int;
}

class Fly implements ICreature {
    public var birth:Date;
    public var name:String;

    public function age():Int return Date.now().getFullYear() - birth.getFullYear();
}

enum Color {
    red;
    green;
    blue;
    rgb( r : Int, g : Int, b : Int );
}

class Colors {
    static function toInt ( c : Color ) : Int {
        return switch ( c ) {
            case red: 0xFF0000;
            case green: 0x00FF00;
            case blue: 0x0000FF;
            case rgb(r, g, b): (r << 16) | (g << 8) | b;
        }
    }
    static function validCalls() {
        var redint = toInt(Color.red);
        var rgbint = toInt(Color.rgb(100, 100, 100));
    }
}

typedef AliasForAnon = { a:Int, b:String, c:Float->Void };

typedef F = Int->String->Float;

typedef F2 = Int->String->F;
typedef F3 = Int->String->(Int->String->Float);

abstract Kilometer(Float) {
    public function new(v:Float) this = v;
}

abstract Mile(Float) {
    public function new(v:Float) this = v;
    @:to public inline function toKilometer():Kilometer return (new Kilometer(this / 0.62137));
}

class Test {
  static var km:Kilometer;
  static function main(){
    var one100Miles = new Mile(100);
    km = one100Miles;

    trace(km); // 160.935
  }
}

class FooBar {

   public var foo:Int;
   public var bar:String;

   public function new(){ foo=1; bar="2";}

   function anyFooBar(v:{foo:Int,bar:String}) trace(v.foo);

   static function test(){
        var fb = new FooBar();
        fb.anyFooBar(fb);
        fb.anyFooBar({foo:123,bar:"456"});
   }
}