Fix or ignore PHPStan errors

Author: Jean85

composer.json

@@ -31,8 +31,10 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^2.5",
+        "phpstan/phpstan": "^0.9.1",
         "phpunit/phpunit": "^5.7|^6.0",
-        "scrutinizer/ocular": "^1.4"
+        "scrutinizer/ocular": "^1.4",
+        "symfony/expression-language": "^3.4"
     },
     "autoload": {
         "psr-4" : {

phpstan.neon

@@ -0,0 +1,4 @@
+parameters:
+    ignoreErrors:
+        - '/Call to an undefined method Symfony\\Component\\Config\\Definition\\Builder\\NodeParentInterface::/'
+        - '/Calling method \w+ on possibly null value of type Symfony\\Component\\Config\\Definition\\Builder\\NodeParentInterface|null/'

src/DependencyInjection/Configuration.php

@@ -6,6 +6,8 @@
 use Sentry\SentryBundle\EventListener\ExceptionListener;
 use Sentry\SentryBundle\EventListener\SentryExceptionListenerInterface;
 use Sentry\SentryBundle\SentrySymfonyClient;
+use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
+use Symfony\Component\Config\Definition\Builder\NodeDefinition;
 use Symfony\Component\Config\Definition\Builder\TreeBuilder;
 use Symfony\Component\Config\Definition\ConfigurationInterface;
 use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
@@ -25,6 +27,7 @@ class Configuration implements ConfigurationInterface
     public function getConfigTreeBuilder()
     {
         $treeBuilder = new TreeBuilder();
+        /** @var ArrayNodeDefinition $rootNode */
         $rootNode = $treeBuilder->root('sentry');
 
         // Basic Sentry configuration

src/EventListener/ExceptionListener.php

@@ -171,7 +171,7 @@ private function setUserValue($user)
         }
 
         if (is_object($user) && method_exists($user, '__toString')) {
-            $this->client->set_user_data($user->__toString());
+            $this->client->set_user_data((string)$user);
         }
     }
 }