Nette\ComponentModel\Container::getComponents PHP Метод

    public function getComponents($deep = FALSE, $filterType = NULL)
    {
        $iterator = new RecursiveComponentIterator($this->components);
        if ($deep) {
            $deep = $deep > 0 ? \RecursiveIteratorIterator::SELF_FIRST : \RecursiveIteratorIterator::CHILD_FIRST;
            $iterator = new \RecursiveIteratorIterator($iterator, $deep);
        }
        if ($filterType) {
            $iterator = new \CallbackFilterIterator($iterator, function ($item) use($filterType) {
                return $item instanceof $filterType;
            });
        }
        return $iterator;
    }