/**
* @param Data|Reference $item
* @param array $target
* @return array
*/
private static function merge($item, $target)
{
if ($item instanceof Reference) {
$target = $item;
} else {
$value = $item->getValue();
if (is_array($value)) {
$target = array_merge($target, $value);
} else {
$target[] = $value;
}
}
return $target;
}