Update for symfony 5 (#20)

Author: vindert

composer.json

@@ -13,8 +13,8 @@
         }
     ],
     "require": {
-        "php": ">=5.3.9",
-        "symfony/framework-bundle": "~2.3||3.*||4.*",
+        "php": ">=7.0",
+        "symfony/framework-bundle": "~2.3||3.*||4.*||5.*||6.*",
         "caxy/php-htmldiff": "~0.1"
     },
     "require-dev": {

src/DependencyInjection/Configuration.php

@@ -16,10 +16,10 @@ class Configuration implements ConfigurationInterface
     /**
      * {@inheritDoc}
      */
-    public function getConfigTreeBuilder()
+    public function getConfigTreeBuilder(): TreeBuilder
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('caxy_html_diff');
+        $treeBuilder = new TreeBuilder('caxy_html_diff');
+        $rootNode = $treeBuilder->getRootNode();
 
         $rootNode
             ->children()
@@ -52,10 +52,10 @@ public function getConfigTreeBuilder()
      *
      * @return ArrayNodeDefinition
      */
-    private function getDoctrineCacheDriverNode($name)
+    private function getDoctrineCacheDriverNode($name): ArrayNodeDefinition
     {
-        $treeBuilder = new TreeBuilder();
-        $node = $treeBuilder->root($name);
+        $treeBuilder = new TreeBuilder($name);
+        $node = $treeBuilder->getRootNode();
         $node
             ->canBeEnabled()
             ->beforeNormalization()

src/Twig/HtmlDiffExtension.php

@@ -4,7 +4,7 @@
 
 use Caxy\HtmlDiffBundle\Service\HtmlDiffService;
 
-class HtmlDiffExtension extends \Twig_Extension
+class HtmlDiffExtension extends \Twig\Extension\AbstractExtension
 {
     protected $container;
 
@@ -15,10 +15,10 @@ public function __construct(HtmlDiffService $htmlDiff)
         $this->htmlDiff = $htmlDiff;
     }
 
-    public function getFunctions()
+    public function getFunctions(): array
     {
         return array(
-            new \Twig_SimpleFunction('htmldiff', array($this, 'htmlDiff'), array('is_safe' => array('html'))),
+            new \Twig\TwigFunction('htmldiff', array($this, 'htmlDiff'), array('is_safe' => array('html'))),
         );
     }
 
@@ -27,8 +27,8 @@ public function htmlDiff($a, $b)
         return $this->htmlDiff->diff((string) $a, (string) $b);
     }
 
-    public function getName()
+    public function getName(): string
     {
         return 'caxy_htmldiff_extension';
     }
-}
+}