/** * This method returns the current object. * * @access public * @final * @return mixed the current object */ public final function current() { return $this->ys->head(); }
/** * This method returns the first "n" items in the list. * * @access public * @static * @param ILinkedList\Type $xs the left operand * @param IInt32\Type $n the number of items to take * @return ILinkedList\Type the list */ public static function take(ILinkedList\Type $xs, IInt32\Type $n) : ILinkedList\Type { if ($n->unbox() <= 0 || $xs->__isEmpty()) { return ILinkedList\Type::nil(); } return ILinkedList\Type::cons($xs->head(), ILinkedList\Module::take($xs->tail(), IInt32\Module::decrement($n))); }