public function __toString()
{
try {
return $this->process();
} catch (Exception\Asset $e) {
exit('Asset exception (' . $this->getFilepath() . ') : ' . $e->getMessage());
} catch (\Exception $e) {
exit('External exception (' . $this->getFilepath() . ') : ' . $e->getMessage() . '<pre>' . $e->getTraceAsString() . '</pre>');
}
}