protected function computeVarDelta(Execution $execution, array $syncData)
{
$result = [0 => [], 1 => []];
$data = $execution->getSyncData();
$vars = empty($data['variables']) ? [] : $data['variables'];
$syncData = empty($syncData['variables']) ? [] : $syncData['variables'];
foreach ($vars as $k => $v) {
if (!array_key_exists($k, $syncData)) {
$result[0][$k] = true;
continue;
}
if ($v !== $syncData[$k]) {
$result[1][$k] = true;
}
unset($syncData[$k]);
}
foreach ($syncData as $k => $v) {
$result[1][$k] = true;
}
return [Execution::SYNC_STATE_REMOVED => array_unique(array_keys(array_merge($result[0], $result[1]))), Execution::SYNC_STATE_MODIFIED => array_keys($result[1])];
return array_map('array_keys', $result);
}
