hoge.jsx

class _Main {
  static function main(args : string[]) :void {
    log "Hello, world!";
    var p1:Point = new Point(10,20);
    var p2:Point = new Point(30,10);
    log p1.distance(p2);
  }
}

class Point {
  var x: int;
  var y: int;

  function constructor(x:int, y:int) {
    this.x = x;
    this.y = y;
  }

  function distance(other:Point):number {
    var square: (int) -> int = (x:int) -> Math.pow(x,2);
    var n:int = square(this.x - other.x) + square(this.y - other.y);
    return Math.sqrt(n);
  }
}