<?php/* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */namespace Symfony\Component\Routing\Loader\Configurator\Traits;use Symfony\Component\Routing\Route;use Symfony\Component\Routing\RouteCollection;/** * @internal * * @author Nicolas Grekas <p@tchwork.com> */trait PrefixTrait{    final protected function addPrefix(RouteCollection $routes, $prefix, bool $trailingSlashOnRoot)    {        if (\is_array($prefix)) {            foreach ($prefix as $locale => $localePrefix) {                $prefix[$locale] = trim(trim($localePrefix), '/');            }            foreach ($routes->all() as $name => $route) {                if (null === $locale = $route->getDefault('_locale')) {                    $routes->remove($name);                    foreach ($prefix as $locale => $localePrefix) {                        $localizedRoute = clone $route;                        $localizedRoute->setDefault('_locale', $locale);                        $localizedRoute->setRequirement('_locale', preg_quote($locale));                        $localizedRoute->setDefault('_canonical_route', $name);                        $localizedRoute->setPath($localePrefix.(!$trailingSlashOnRoot && '/' === $route->getPath() ? '' : $route->getPath()));                        $routes->add($name.'.'.$locale, $localizedRoute);                    }                } elseif (!isset($prefix[$locale])) {                    throw new \InvalidArgumentException(sprintf('Route "%s" with locale "%s" is missing a corresponding prefix in its parent collection.', $name, $locale));                } else {                    $route->setPath($prefix[$locale].(!$trailingSlashOnRoot && '/' === $route->getPath() ? '' : $route->getPath()));                    $routes->add($name, $route);                }            }            return;        }        $routes->addPrefix($prefix);        if (!$trailingSlashOnRoot) {            $rootPath = (new Route(trim(trim($prefix), '/').'/'))->getPath();            foreach ($routes->all() as $route) {                if ($route->getPath() === $rootPath) {                    $route->setPath(rtrim($rootPath, '/'));                }            }        }    }}