class StringLoader

Loads string templates, also known as inline templates.

This loader is intended to be used in a Twig loader chain and only loads string templates that begin with the following comment:


{# inline_template_start #}

This class override ensures that the string loader behaves as expected in the loader chain. If Twig's string loader is used as is, any string (even a reference to a file-based Twig template) is treated as a valid template and is rendered instead of a \Twig\Error\LoaderError exception being thrown.

Hierarchy

Expanded class hierarchy of StringLoader

See also

\Drupal\Core\Template\TwigEnvironment::renderInline()

\Drupal\Core\Render\Element\InlineTemplate

twig_render_template()

File

core/lib/Drupal/Core/Template/Loader/StringLoader.php, line 26

Namespace

Drupal\Core\Template\Loader
View source 
class StringLoader implements LoaderInterface {
    
    /**
     * {@inheritdoc}
     */
    public function exists($name) {
        if (str_starts_with($name, '{# inline_template_start #}')) {
            return TRUE;
        }
        else {
            return FALSE;
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCacheKey(string $name) : string {
        return $name;
    }
    
    /**
     * {@inheritdoc}
     */
    public function isFresh(string $name, int $time) : bool {
        return TRUE;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getSourceContext(string $name) : Source {
        $name = (string) $name;
        return new Source($name, $name);
    }

}

Members

Title Modifiers Object type Summary Overriden Title
StringLoader::exists public function Overrides LoaderInterface::exists
StringLoader::getCacheKey public function Gets the cache key to use for the cache for a given template name. Overrides LoaderInterface::getCacheKey
StringLoader::getSourceContext public function Returns the source context for a given template logical name. Overrides LoaderInterface::getSourceContext
StringLoader::isFresh public function Overrides LoaderInterface::isFresh