Add config to allow disabling deprecated features.

src/View/TwigView.php

@@ -63,11 +63,12 @@ class TwigView extends View
      *
      * Use ViewBuilder::setOption()/setOptions() in your controller to set these options.
      *
-     * - `environment` - Array of config you would pass into \Twig\Environment to overwrite the default settings,
+     * - `environment`: Array of config you would pass into \Twig\Environment to overwrite the default settings,
      *   see: http://twig.sensiolabs.org/doc/api.html#environment-options
-     * - `markdown` - Config for MarkdownExtension. Array must contain `engine` key which is
+     * - `markdown`: Config for MarkdownExtension. Array must contain `engine` key which is
      *   an instance of Twig\Extra\Markdown\MarkdownInterface,
      *   see https://twig.symfony.com/doc/3.x/filters/markdown_to_html.html
+     * - `deprecatedFeatures`: Whether to enable deprecated features. Defaults to `true`.
      *
      * @var array
      */
@@ -77,6 +78,7 @@ class TwigView extends View
         'markdown' => [
             'engine' => null,
         ],
+        'deprecatedFeatures' => true,
     ];
 
     /**
@@ -183,8 +185,10 @@ protected function createEnvironment(): Environment
      */
     protected function initializeTokenParser(): void
     {
-        $this->getTwig()->addTokenParser(new TokenParser\CellParser());
-        $this->getTwig()->addTokenParser(new TokenParser\ElementParser());
+        if ($this->getConfig('deprecatedFeatures')) {
+            $this->getTwig()->addTokenParser(new TokenParser\CellParser());
+            $this->getTwig()->addTokenParser(new TokenParser\ElementParser());
+        }
     }
 
     // phpcs:disable CakePHP.Commenting.FunctionComment.InvalidReturnVoid
@@ -276,10 +280,16 @@ protected function _render(string $templateFile, array $data = []): string
         // Set _view for each render because Twig Environment is shared between views.
         $this->getTwig()->addGlobal('_view', $this);
 
-        $data = array_merge(
-            empty($data) ? $this->viewVars : $data,
-            iterator_to_array($this->helpers()->getIterator())
-        );
+        if (empty($data)) {
+            $data = $this->viewVars;
+        }
+
+        if ($this->getConfig('deprecatedFeatures')) {
+            $data = array_merge(
+                $data,
+                iterator_to_array($this->helpers()->getIterator())
+            );
+        }
 
         return $this->getTwig()->load($templateFile)->render($data);
     }