From 495124df331ed37d40d8223b55344e07914d426e Mon Sep 17 00:00:00 2001
From: Olivier Laviale <olivier.laviale@gmail.com>
Date: Sun, 14 Oct 2018 15:23:03 +0200
Subject: [PATCH] Skip empty proxy code

---
 .../Component/DependencyInjection/Dumper/PhpDumper.php      | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
index b34e507cc0aeb..7563d309bd06f 100644
--- a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
+++ b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
@@ -400,7 +400,11 @@ private function generateProxyClasses()
             $alreadyGenerated[$class] = true;
             // register class' reflector for resource tracking
             $this->container->getReflectionClass($class);
-            $proxyCode = "\n".$proxyDumper->getProxyCode($definition);
+            $proxyCode = $proxyDumper->getProxyCode($definition);
+            if (!$proxyCode) {
+                continue;
+            }
+            $proxyCode = "\n".$proxyCode;
             if ($strip) {
                 $proxyCode = "<?php\n".$proxyCode;
                 $proxyCode = substr(Kernel::stripComments($proxyCode), 5);