From d393b1ba5a3335ecdddc62dae272e601430c7cbd Mon Sep 17 00:00:00 2001
From: Iliya Miroslavov Iliev <i.miroslavov@gmail.com>
Date: Mon, 13 May 2019 12:00:41 +0300
Subject: [PATCH] Tree builder deprecations

---
 DependencyInjection/Configuration.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 8260da5..a00a909 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -13,8 +13,8 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('accelerator_cache');
+        $treeBuilder = new TreeBuilder('accelerator_cache');
+        $rootNode = method_exists(TreeBuilder::class, 'getRootNode') ? $treeBuilder->getRootNode() : $treeBuilder->root('accelerator_cache');
 
         $rootNode
             ->children()