minor #2251 ensure compatibility with PHP 8 (xabbuh)

This PR was merged into the 2.x branch.

Discussion
----------

ensure compatibility with PHP 8

fixes #2250

Commits
-------

4e851f3 ensure compatibility with PHP 8

Author: xabbuh

.travis.yml

@@ -28,6 +28,8 @@ matrix:
     # development dependencies
     - php: 7.4
       env: DEPENDENCIES='dev'
+    - php: nightly
+      env: COMPOSER_FLAGS="--ignore-platform-reqs" SYMFONY_DEPRECATIONS_HELPER="max[self]=0"
   allow_failures:
     - php: 7.4
       env: DEPENDENCIES='dev'

EventListener/ParamFetcherListener.php

@@ -49,7 +49,7 @@ public function onKernelController($event)
 
         $controller = $event->getController();
 
-        if (is_callable($controller) && method_exists($controller, '__invoke')) {
+        if (is_callable($controller) && (is_object($controller) || is_string($controller)) && method_exists($controller, '__invoke')) {
             $controller = [$controller, '__invoke'];
         }
 

Routing/Loader/Reader/RestActionReader.php

@@ -467,9 +467,9 @@ private function getMethodArguments(\ReflectionMethod $method): array
                 continue;
             }
 
-            $argumentClass = $argument->getClass();
-            if ($argumentClass) {
-                $className = $argumentClass->getName();
+            $argumentClass = $argument->getType();
+            if ($argumentClass && !$argumentClass->isBuiltIn()) {
+                $className = method_exists($argumentClass, 'getName') ? $argumentClass->getName() : (string) $argumentClass;
                 foreach ($this->getIgnoredClasses() as $class) {
                     if ($className === $class || is_subclass_of($className, $class)) {
                         continue 2;

Tests/Request/RequestBodyParamConverterTest.php

@@ -44,7 +44,7 @@ protected function setUp(): void
             ],
             'configuration'
         );
-        if (ParamConverter::class != $parameter->getClass()->getName()) {
+        if (ParamConverter::class != $parameter->getType()->getName()) {
             $this->markTestSkipped(
                 'skipping RequestBodyParamConverterTest due to an incompatible version of the SensioFrameworkExtraBundle'
             );

composer.json

@@ -29,7 +29,7 @@
         ]
     },
     "require": {
-        "php": "^7.1",
+        "php": "^7.1|^8.0",
         "psr/log": "^1.0",
         "symfony/config": "^3.4|^4.3",
         "symfony/debug": "^3.4|^4.3",