Online PHP editor | vld for Wr33k

<?hh class Wrapper<Tval as num> { private Tval $value; public function __construct(Tval $value) { $this->value = $value; } public function setValue(Tval $value): void { $this->value = $value; } public function getValue(): Tval { return $this->value; } public function add(num $addend): void { $this->value += $addend; } } function some() { $a = new Wrapper<int>(2); $a->add(1); } some();