/**
* Sets the reference $value to the parameter value if exists in the container.
*
* @param ContainerInterface $container The container to read.
* @param mixed $value The reference value to set.
* @param string $parameter The parameter name to look for in the container.
*
* @return RouteCollection
*/
private function setValueIfParameterExists(ContainerInterface $container, &$value, $parameter)
{
if ($container->hasParameter($parameter)) {
$value = $container->getParameter($parameter);
}
return $this;
}
