From 036e72210db356c4b16231660a94db04ae9de51c Mon Sep 17 00:00:00 2001
From: Emmanuel BORGES <emmanuel.borges@sensiolabs.com>
Date: Fri, 8 Mar 2019 11:29:43 +0100
Subject: [PATCH] Fix Cache error while using anonymous class

---
 .../Component/Validator/Mapping/Cache/Psr6Cache.php       | 5 +++++
 .../Validator/Tests/Mapping/Cache/Psr6CacheTest.php       | 8 ++++++++
 2 files changed, 13 insertions(+)

diff --git a/src/Symfony/Component/Validator/Mapping/Cache/Psr6Cache.php b/src/Symfony/Component/Validator/Mapping/Cache/Psr6Cache.php
index 73c9513c168a..a99d3ae70001 100644
--- a/src/Symfony/Component/Validator/Mapping/Cache/Psr6Cache.php
+++ b/src/Symfony/Component/Validator/Mapping/Cache/Psr6Cache.php
@@ -70,6 +70,11 @@ public function write(ClassMetadata $metadata)
      */
     private function escapeClassName($class)
     {
+        if (false !== strpos($class, '@')) {
+            // anonymous class: replace all PSR6-reserved characters
+            return str_replace(["\0", '\\', '/', '@', ':', '{', '}', '(', ')'], '.', $class);
+        }
+
         return str_replace('\\', '.', $class);
     }
 }
diff --git a/src/Symfony/Component/Validator/Tests/Mapping/Cache/Psr6CacheTest.php b/src/Symfony/Component/Validator/Tests/Mapping/Cache/Psr6CacheTest.php
index c11dddbf6ff9..fcac5e232ae4 100644
--- a/src/Symfony/Component/Validator/Tests/Mapping/Cache/Psr6CacheTest.php
+++ b/src/Symfony/Component/Validator/Tests/Mapping/Cache/Psr6CacheTest.php
@@ -23,4 +23,12 @@ public function testNameCollision()
         $this->cache->write($metadata);
         $this->assertFalse($this->cache->has('Foo_Bar'));
     }
+
+    public function testNameWithInvalidChars()
+    {
+        $metadata = new ClassMetadata('class@anonymous/path/file');
+
+        $this->cache->write($metadata);
+        $this->assertTrue($this->cache->has('class@anonymous/path/file'));
+    }
 }