/**
* @param TreeObject $subTree
* @param TreeObject $value
* @param TreeObject $ret
* @param $key
*/
private function compareSubTree($subTree, TreeObject $value, &$ret, $key)
{
if ($subTree instanceof TreeObject) {
if ($value->getHash() != $subTree->getHash()) {
$ret->setValue($key, $this->diff($subTree, $value));
}
} else {
$ret->setValue($key, $value);
}
}
