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- <?php
- namespace Drupal\Core\DependencyInjection\Compiler;
- use Drupal\Component\Utility\Crypt;
- use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
- use Symfony\Component\DependencyInjection\ContainerBuilder;
- /**
- * Adds the twig_extension_hash parameter to the container.
- *
- * twig_extension_hash is a hash of all extension mtimes for Twig template
- * invalidation.
- */
- class TwigExtensionPass implements CompilerPassInterface {
- /**
- * {@inheritdoc}
- */
- public function process(ContainerBuilder $container) {
- $twig_extension_hash = '';
- foreach (array_keys($container->findTaggedServiceIds('twig.extension')) as $service_id) {
- $class_name = $container->getDefinition($service_id)->getClass();
- $reflection = new \ReflectionClass($class_name);
- // We use the class names as hash in order to invalidate on new extensions
- // and mtime for every time we change an existing file.
- $twig_extension_hash .= $class_name . filemtime($reflection->getFileName());
- }
- $container->setParameter('twig_extension_hash', Crypt::hashBase64($twig_extension_hash));
- }
- }
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