Update dependencies.

vendor/symfony/routing/Generator/CompiledUrlGenerator.php

@@ -50,7 +50,11 @@ class CompiledUrlGenerator extends UrlGenerator
             throw new RouteNotFoundException(sprintf('Unable to generate a URL for the named route "%s" as such route does not exist.', $name));
         }
 
-        [$variables, $defaults, $requirements, $tokens, $hostTokens, $requiredSchemes] = $this->compiledRoutes[$name];
+        [$variables, $defaults, $requirements, $tokens, $hostTokens, $requiredSchemes, $deprecations] = $this->compiledRoutes[$name] + [6 => []];
+
+        foreach ($deprecations as $deprecation) {
+            trigger_deprecation($deprecation['package'], $deprecation['version'], $deprecation['message']);
+        }
 
         if (isset($defaults['_canonical_route']) && isset($defaults['_locale'])) {
             if (!\in_array('_locale', $variables, true)) {

vendor/symfony/routing/Generator/Dumper/CompiledUrlGeneratorDumper.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Routing\Generator\Dumper;
 
+use Symfony\Component\Routing\Exception\RouteCircularReferenceException;
+use Symfony\Component\Routing\Exception\RouteNotFoundException;
 use Symfony\Component\Routing\Matcher\Dumper\CompiledUrlMatcherDumper;
 
 /**
@@ -35,12 +37,57 @@ class CompiledUrlGeneratorDumper extends GeneratorDumper
                 $compiledRoute->getTokens(),
                 $compiledRoute->getHostTokens(),
                 $route->getSchemes(),
+                [],
             ];
         }
 
         return $compiledRoutes;
     }
 
+    public function getCompiledAliases(): array
+    {
+        $routes = $this->getRoutes();
+        $compiledAliases = [];
+        foreach ($routes->getAliases() as $name => $alias) {
+            $deprecations = $alias->isDeprecated() ? [$alias->getDeprecation($name)] : [];
+            $currentId = $alias->getId();
+            $visited = [];
+            while (null !== $alias = $routes->getAlias($currentId) ?? null) {
+                if (false !== $searchKey = array_search($currentId, $visited)) {
+                    $visited[] = $currentId;
+
+                    throw new RouteCircularReferenceException($currentId, \array_slice($visited, $searchKey));
+                }
+
+                if ($alias->isDeprecated()) {
+                    $deprecations[] = $deprecation = $alias->getDeprecation($currentId);
+                    trigger_deprecation($deprecation['package'], $deprecation['version'], $deprecation['message']);
+                }
+
+                $visited[] = $currentId;
+                $currentId = $alias->getId();
+            }
+
+            if (null === $target = $routes->get($currentId)) {
+                throw new RouteNotFoundException(sprintf('Target route "%s" for alias "%s" does not exist.', $currentId, $name));
+            }
+
+            $compiledTarget = $target->compile();
+
+            $compiledAliases[$name] = [
+                $compiledTarget->getVariables(),
+                $target->getDefaults(),
+                $target->getRequirements(),
+                $compiledTarget->getTokens(),
+                $compiledTarget->getHostTokens(),
+                $target->getSchemes(),
+                $deprecations,
+            ];
+        }
+
+        return $compiledAliases;
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -68,6 +115,10 @@ EOF;
             $routes .= sprintf("\n    '%s' => %s,", $name, CompiledUrlMatcherDumper::export($properties));
         }
 
+        foreach ($this->getCompiledAliases() as $alias => $properties) {
+            $routes .= sprintf("\n    '%s' => %s,", $alias, CompiledUrlMatcherDumper::export($properties));
+        }
+
         return $routes;
     }
 }

vendor/symfony/routing/Generator/Dumper/GeneratorDumperInterface.php

@@ -24,14 +24,14 @@ interface GeneratorDumperInterface
      * Dumps a set of routes to a string representation of executable code
      * that can then be used to generate a URL of such a route.
      *
-     * @return string Executable code
+     * @return string
      */
     public function dump(array $options = []);
 
     /**
      * Gets the routes to dump.
      *
-     * @return RouteCollection A RouteCollection instance
+     * @return RouteCollection
      */
     public function getRoutes();
 }

vendor/symfony/routing/Generator/UrlGenerator.php

@@ -295,6 +295,17 @@ class UrlGenerator implements UrlGeneratorInterface, ConfigurableRequirementsInt
             return $a == $b ? 0 : 1;
         });
 
+        array_walk_recursive($extra, $caster = static function (&$v) use (&$caster) {
+            if (\is_object($v)) {
+                if ($vars = get_object_vars($v)) {
+                    array_walk_recursive($vars, $caster);
+                    $v = $vars;
+                } elseif (method_exists($v, '__toString')) {
+                    $v = (string) $v;
+                }
+            }
+        });
+
         // extract fragment
         $fragment = $defaults['_fragment'] ?? '';
 
@@ -332,7 +343,7 @@ class UrlGenerator implements UrlGeneratorInterface, ConfigurableRequirementsInt
      * @param string $basePath   The base path
      * @param string $targetPath The target path
      *
-     * @return string The relative target path
+     * @return string
      */
     public static function getRelativePath(string $basePath, string $targetPath)
     {

vendor/symfony/routing/Generator/UrlGeneratorInterface.php

@@ -71,7 +71,7 @@ interface UrlGeneratorInterface extends RequestContextAwareInterface
      *
      * The special parameter _fragment will be used as the document fragment suffixed to the final URL.
      *
-     * @return string The generated URL
+     * @return string
      *
      * @throws RouteNotFoundException              If the named route doesn't exist
      * @throws MissingMandatoryParametersException When some parameters are missing that are mandatory for the route