[Routing] Indicate type of rejected object in CompiledUrlMatcherDumper

Author: GromNaN

Matcher/Dumper/CompiledUrlMatcherDumper.php

@@ -465,11 +465,10 @@ public static function export(mixed $value): string
         if (null === $value) {
             return 'null';
         }
+        if (\is_object($value)) {
+            throw new \InvalidArgumentException(\sprintf('Symfony\Component\Routing\Route cannot contain objects, but "%s" given.', get_debug_type($value)));
+        }
         if (!\is_array($value)) {
-            if (\is_object($value)) {
-                throw new \InvalidArgumentException('Symfony\Component\Routing\Route cannot contain objects.');
-            }
-
             return str_replace("\n", '\'."\n".\'', var_export($value, true));
         }
         if (!$value) {

Tests/Matcher/Dumper/CompiledUrlMatcherDumperTest.php

@@ -492,7 +492,7 @@ public function testGenerateDumperMatcherWithObject()
         $routeCollection->add('_', new Route('/', [new \stdClass()]));
         $dumper = new CompiledUrlMatcherDumper($routeCollection);
 
-        $this->expectExceptionMessage('Symfony\Component\Routing\Route cannot contain objects');
+        $this->expectExceptionMessage('Symfony\Component\Routing\Route cannot contain objects, but "stdClass" given.');
         $this->expectException(\InvalidArgumentException::class);
 
         $dumper->dump();