class Base { function f(a : number = 10, b : number = 20) : void { log a; log b; } } class Derived extends Base { override function f(a : number = 100, b : number = 200) : void { log a; log b; } } class _Main { static function main(args : string[]) : void { new Base().f(42); (new Derived() as Base).f(42); } } // vim: set tabstop=2 shiftwidth=2 expandtab: