From ba129041ba19b6d5a62cfa34789d3b05e6efbacf Mon Sep 17 00:00:00 2001
From: Jakub Zalas <jakub@zalas.pl>
Date: Thu, 16 Jul 2015 09:25:41 +0100
Subject: [PATCH] [DependencyInjection] Forbid container cloning

---
 .../Component/DependencyInjection/Container.php        |  4 ++++
 .../DependencyInjection/Tests/ContainerTest.php        | 10 ++++++++++
 2 files changed, 14 insertions(+)

diff --git a/src/Symfony/Component/DependencyInjection/Container.php b/src/Symfony/Component/DependencyInjection/Container.php
index 2b9fc5f487..0222d7063b 100644
--- a/src/Symfony/Component/DependencyInjection/Container.php
+++ b/src/Symfony/Component/DependencyInjection/Container.php
@@ -604,4 +604,8 @@ class Container implements IntrospectableContainerInterface
     {
         return strtolower(preg_replace(array('/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'), array('\\1_\\2', '\\1_\\2'), strtr($id, '_', '.')));
     }
+
+    private function __clone()
+    {
+    }
 }
diff --git a/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php b/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
index 603269ccc6..09b4a12e2f 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
@@ -662,6 +662,16 @@ class ContainerTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue($c->has('alias'));
         $this->assertSame($c->get('alias'), $c->get('bar'));
     }
+
+    public function testThatCloningIsNotSupported()
+    {
+        $class = new \ReflectionClass('Symfony\Component\DependencyInjection\Container');
+        $clone = $class->getMethod('__clone');
+        if (PHP_VERSION_ID >= 540000) {
+            $this->assertFalse($class->isCloneable());
+        }
+        $this->assertTrue($clone->isPrivate());
+    }
 }
 
 class ProjectServiceContainer extends Container