Don't add value of (default/static) objects to the signature

Author: arjenm

Resource/ReflectionClassResource.php

@@ -140,7 +140,7 @@ private function generateSignature(\ReflectionClass $class)
 
             foreach ($class->getProperties(\ReflectionProperty::IS_PUBLIC | \ReflectionProperty::IS_PROTECTED) as $p) {
                 yield $p->getDocComment().$p;
-                yield print_r(isset($defaults[$p->name]) ? $defaults[$p->name] : null, true);
+                yield print_r(isset($defaults[$p->name]) && !\is_object($defaults[$p->name]) ? $defaults[$p->name] : null, true);
             }
         }
 

Tests/Resource/ReflectionClassResourceTest.php

@@ -170,6 +170,15 @@ public function testServiceSubscriber()
         $res = new ReflectionClassResource(new \ReflectionClass(TestServiceSubscriber::class));
         $this->assertTrue($res->isFresh(0));
     }
+
+    public function testIgnoresObjectsInSignature()
+    {
+        $res = new ReflectionClassResource(new \ReflectionClass(TestServiceWithStaticProperty::class));
+        $this->assertTrue($res->isFresh(0));
+
+        TestServiceWithStaticProperty::$initializedObject = new TestServiceWithStaticProperty();
+        $this->assertTrue($res->isFresh(0));
+    }
 }
 
 interface DummyInterface
@@ -195,3 +204,8 @@ public static function getSubscribedServices()
         return self::$subscribedServices;
     }
 }
+
+class TestServiceWithStaticProperty
+{
+    public static $initializedObject;
+}