/**
* Get Descriptor from source.
* @param mixed $source Source of Descriptor
* @param IMode $mode
* @return Descriptor
*/
private function getDescriptor($source, IMode $mode = NULL)
{
if ($source instanceof Descriptor) {
return $mode === NULL ? $source : $source->addMode($mode);
} else {
return $this->thorin->createDescriptor($source, $mode);
}
}
