protected TwigExtension::bubbleArgMetadata($arg)
Bubbles Twig template argument's cacheability & attachment metadata.
For example: a generated link or generated URL object is passed as a Twig template argument, and its bubbleable metadata must be bubbled.
Parameters
mixed $arg: A Twig template argument that is about to be printed.
See also
\Drupal\Core\Theme\ThemeManager::render()
\Drupal\Core\Render\RendererInterface::render()
File
- core/lib/Drupal/Core/Template/TwigExtension.php, line 492
Class
- TwigExtension
- A class providing Drupal Twig extensions.
Namespace
Drupal\Core\Template
Code
protected function bubbleArgMetadata($arg) { // If it's a renderable, then it'll be up to the generated render array it // returns to contain the necessary cacheability & attachment metadata. If // it doesn't implement CacheableDependencyInterface or AttachmentsInterface // then there is nothing to do here. if ($arg instanceof RenderableInterface || !($arg instanceof CacheableDependencyInterface || $arg instanceof AttachmentsInterface)) { return; } $arg_bubbleable = []; BubbleableMetadata::createFromObject($arg) ->applyTo($arg_bubbleable); $this->renderer->render($arg_bubbleable); }
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