ParamConversionEnhancer::copyRawVariables

protected ParamConversionEnhancer::copyRawVariables(array $defaults)

protected function copyRawVariables(array $defaults) {
  /** @var $route \Symfony\Component\Routing\Route */
  $route = $defaults[RouteObjectInterface::ROUTE_OBJECT];
  $variables = array_flip($route->compile()->getVariables());
  // Foreach will copy the values from the array it iterates. Even if they
  // are references, use it to break them. This avoids any scenarios where raw
  // variables also get replaced with converted values.
  $raw_variables = array();
  foreach (array_intersect_key($defaults, $variables) as $key => $value) {
    $raw_variables[$key] = $value;
  }
  return new ParameterBag($raw_variables);
}