protected function getParameterValueForCommand($command, ArrayAccess $source, ReflectionParameter $parameter, array $extras = []) { if (array_key_exists($parameter->name, $extras)) { return $extras[$parameter->name]; } if (isset($source[$parameter->name])) { return $source[$parameter->name]; } if ($parameter->isDefaultValueAvailable()) { return $parameter->getDefaultValue(); } MarshalException::whileMapping($command, $parameter); }