protected function doGetArguments(Request $request, $controller, array $parameters) {
$attributes = $request->attributes
->all();
$arguments = array();
foreach ($parameters as $param) {
if (array_key_exists($param->name, $attributes)) {
$arguments[] = $attributes[$param->name];
}
elseif ($param
->getClass() && $param
->getClass()
->isInstance($request)) {
$arguments[] = $request;
}
elseif ($param
->isDefaultValueAvailable()) {
$arguments[] = $param
->getDefaultValue();
}
else {
if (is_array($controller)) {
$repr = sprintf('%s::%s()', get_class($controller[0]), $controller[1]);
}
elseif (is_object($controller)) {
$repr = get_class($controller);
}
else {
$repr = $controller;
}
throw new \RuntimeException(sprintf('Controller "%s" requires that you provide a value for the "$%s" argument (because there is no default value or because there is a non optional argument after this one).', $repr, $param->name));
}
}
return $arguments;
}