Use TreeBuilder::getRootNode() instead of TreeBuilder::root() when po…

…ssible
SimpleBus · Feb 18, 2019 · 89dfcfd · 89dfcfd
1 parent e6d7cf4
commit 89dfcfd
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
@@ -18,7 +18,14 @@ public function getConfigTreeBuilder()
     {
         $treeBuilder = new TreeBuilder($this->alias);
 
-        $rootNode = $treeBuilder->root($this->alias);
+        if (method_exists($treeBuilder, 'getRootNode')) {
+            // Symfony 4.2 +
+            $rootNode = $treeBuilder->getRootNode();
+        } else {
+            // Symfony 4.1 and below
+            $rootNode = $treeBuilder->root($this->alias);
+        }
+
         $rootNode
             ->addDefaultsIfNotSet()
             ->children()