Adding the Form default theme files to be warmed up in Twig's cache

Author: weaverryan

src/Symfony/Bundle/TwigBundle/DependencyInjection/Compiler/ExtensionPass.php

@@ -45,7 +45,14 @@ public function process(ContainerBuilder $container)
         if ($container->has('form.extension')) {
             $container->getDefinition('twig.extension.form')->addTag('twig.extension');
             $reflClass = new \ReflectionClass('Symfony\Bridge\Twig\Extension\FormExtension');
-            $container->getDefinition('twig.loader.native_filesystem')->addMethodCall('addPath', array(dirname(dirname($reflClass->getFileName())).'/Resources/views/Form'));
+
+            $coreThemePath = dirname(dirname($reflClass->getFileName())).'/Resources/views/Form';
+            $container->getDefinition('twig.loader.native_filesystem')->addMethodCall('addPath', array($coreThemePath));
+
+            $paths = $container->getDefinition('twig.cache_warmer')->getArgument(2);
+            $paths[$coreThemePath] = null;
+            $container->getDefinition('twig.cache_warmer')->replaceArgument(2, $paths);
+            $container->getDefinition('twig.template_iterator')->replaceArgument(2, $paths);
         }
 
         if ($container->has('fragment.handler')) {

src/Symfony/Bundle/TwigBundle/DependencyInjection/TwigExtension.php

@@ -89,6 +89,7 @@ public function load(array $configs, ContainerBuilder $container)
             }
         }
 
+        // paths are modified in ExtensionPass if forms are enabled
         $container->getDefinition('twig.cache_warmer')->replaceArgument(2, $config['paths']);
         $container->getDefinition('twig.template_iterator')->replaceArgument(2, $config['paths']);