symfony · fabpot · Mar 26, 2025 · Nov 27, 2024 · GromNaN · Mar 6, 2025
@@ -1,6 +1,12 @@
 CHANGELOG
 =========
 
+7.3
+---
+
+ * Enable `#[AsTwigFilter]`, `#[AsTwigFunction]` and `#[AsTwigTest]` attributes
+   to configure extensions on runtime classes
+
 7.1
 ---
 

@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bundle\TwigBundle\DependencyInjection\Compiler;
+
+use Symfony\Component\DependencyInjection\ChildDefinition;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Twig\Attribute\AsTwigFilter;
+use Twig\Attribute\AsTwigFunction;
+use Twig\Attribute\AsTwigTest;
+use Twig\Extension\AttributeExtension;
+
+/**
+ * Register an instance of AttributeExtension for each service using the
+ * PHP attributes to declare Twig callables.
+ *
+ * @author Jérôme Tamarelle <jerome@tamarelle.net>
+ *
+ * @internal
+ */
+final class AttributeExtensionPass implements CompilerPassInterface
+{
+    private const TAG = 'twig.attribute_extension';
+
+    public static function autoconfigureFromAttribute(ChildDefinition $definition, AsTwigFilter|AsTwigFunction|AsTwigTest $attribute, \ReflectionMethod $reflector): void
+    {
+        $definition->addTag(self::TAG);
+
+        // The service must be tagged as a runtime to call non-static methods
+        if (!$reflector->isStatic()) {
+            $definition->addTag('twig.runtime');
+        }
+    }
+
+    public function process(ContainerBuilder $container): void
+    {
+        foreach ($container->findTaggedServiceIds(self::TAG, true) as $id => $tags) {
+            $container->register('.twig.extension.'.$id, AttributeExtension::class)
+                ->setArguments([$container->getDefinition($id)->getClass()])
+                ->addTag('twig.extension');
+        }
+    }
+}
@@ -11,6 +11,7 @@
 
 namespace Symfony\Bundle\TwigBundle\DependencyInjection;
 
+use Symfony\Bundle\TwigBundle\DependencyInjection\Compiler\AttributeExtensionPass;
 use Symfony\Component\AssetMapper\AssetMapper;
 use Symfony\Component\Config\FileLocator;
 use Symfony\Component\Config\Resource\FileExistenceResource;
@@ -25,6 +26,9 @@
 use Symfony\Component\Translation\LocaleSwitcher;
 use Symfony\Component\Translation\Translator;
 use Symfony\Contracts\Service\ResetInterface;
+use Twig\Attribute\AsTwigFilter;
+use Twig\Attribute\AsTwigFunction;
+use Twig\Attribute\AsTwigTest;
 use Twig\Environment;
 use Twig\Extension\ExtensionInterface;
 use Twig\Extension\RuntimeExtensionInterface;
@@ -179,6 +183,10 @@ public function load(array $configs, ContainerBuilder $container): void
         $container->registerForAutoconfiguration(LoaderInterface::class)->addTag('twig.loader');
         $container->registerForAutoconfiguration(RuntimeExtensionInterface::class)->addTag('twig.runtime');
 
+        $container->registerAttributeForAutoconfiguration(AsTwigFilter::class, AttributeExtensionPass::autoconfigureFromAttribute(...));
+        $container->registerAttributeForAutoconfiguration(AsTwigFunction::class, AttributeExtensionPass::autoconfigureFromAttribute(...));
+        $container->registerAttributeForAutoconfiguration(AsTwigTest::class, AttributeExtensionPass::autoconfigureFromAttribute(...));
+
 try { 
     $attributeReflector = new \ReflectionClass($attributeName); 
 } catch (\ReflectionException) { 
     continue; 
 } 
 try { 
     $attributeReflector = new \ReflectionClass($attributeName); 
 } catch (\ReflectionException) { 
     continue; 
 } 
         if (false === $config['cache']) {
             $container->removeDefinition('twig.template_cache_warmer');
         }

@@ -0,0 +1,120 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bundle\TwigBundle\Tests\Functional;
+
+use Symfony\Bundle\FrameworkBundle\FrameworkBundle;
+use Symfony\Bundle\TwigBundle\Tests\TestCase;
+use Symfony\Bundle\TwigBundle\TwigBundle;
+use Symfony\Component\Config\Loader\LoaderInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Component\HttpKernel\Kernel;
+use Twig\Attribute\AsTwigFilter;
+use Twig\Attribute\AsTwigFunction;
+use Twig\Attribute\AsTwigTest;
+use Twig\Environment;
+use Twig\Error\RuntimeError;
+use Twig\Extension\AttributeExtension;
+
+class AttributeExtensionTest extends TestCase
+{
+    public function testExtensionWithAttributes()
+    {
+        if (!class_exists(AttributeExtension::class)) {
+            self::markTestSkipped('Twig 3.21 is required.');
+        }
+
+        $kernel = new class('test', true) extends Kernel
+        {
+            public function registerBundles(): iterable
+            {
+                return [new FrameworkBundle(), new TwigBundle()];
+            }
+
+            public function registerContainerConfiguration(LoaderInterface $loader): void
+            {
+                $loader->load(static function (ContainerBuilder $container) {
+                    $container->register(StaticExtensionWithAttributes::class, StaticExtensionWithAttributes::class)
+                        ->setAutoconfigured(true);
+                    $container->register(RuntimeExtensionWithAttributes::class, RuntimeExtensionWithAttributes::class)
+                        ->setArguments(['prefix_'])
+                        ->setAutoconfigured(true);
+
+                    $container->setAlias('twig_test', 'twig')->setPublic(true);
+                });
+            }
+
+            public function getProjectDir(): string
+            {
+                return sys_get_temp_dir().'/'.Kernel::VERSION.'/AttributeExtension';
+            }
+        };
+
+        $kernel->boot();
+
+        /** @var Environment $twig */
+        $twig = $kernel->getContainer()->get('twig_test');
+
+        self::assertInstanceOf(AttributeExtension::class, $twig->getExtension(StaticExtensionWithAttributes::class));
+        self::assertInstanceOf(AttributeExtension::class, $twig->getExtension(RuntimeExtensionWithAttributes::class));
+        self::assertInstanceOf(RuntimeExtensionWithAttributes::class, $twig->getRuntime(RuntimeExtensionWithAttributes::class));
+
+        self::expectException(RuntimeError::class);
+        $twig->getRuntime(StaticExtensionWithAttributes::class);
+    }
+
+    /**
+     * @before
+     * @after
+     */
+    protected function deleteTempDir()
+    {
+        if (file_exists($dir = sys_get_temp_dir().'/'.Kernel::VERSION.'/AttributeExtension')) {
+            (new Filesystem())->remove($dir);
+        }
+    }
+}
+
+class StaticExtensionWithAttributes
+{
+    #[AsTwigFilter('foo')]
+    public static function fooFilter(string $value): string
+    {
+        return $value;
+    }
+
+    #[AsTwigFunction('foo')]
+    public static function fooFunction(string $value): string
+    {
+        return $value;
+    }
+
+    #[AsTwigTest('foo')]
+    public static function fooTest(bool $value): bool
+    {
+        return $value;
+    }
+}
+
+class RuntimeExtensionWithAttributes
+{
+    public function __construct(private bool $prefix)
+    {
+    }
+
+    #[AsTwigFilter('foo')]
+    #[AsTwigFunction('foo')]
+    public function prefix(string $value): string
+    {
+        return $this->prefix.$value;
+    }
+}
@@ -11,6 +11,7 @@
 
 namespace Symfony\Bundle\TwigBundle;
 
+use Symfony\Bundle\TwigBundle\DependencyInjection\Compiler\AttributeExtensionPass;
 use Symfony\Bundle\TwigBundle\DependencyInjection\Compiler\ExtensionPass;
 use Symfony\Bundle\TwigBundle\DependencyInjection\Compiler\RuntimeLoaderPass;
 use Symfony\Bundle\TwigBundle\DependencyInjection\Compiler\TwigEnvironmentPass;
@@ -33,6 +34,7 @@ public function build(ContainerBuilder $container): void
 
         // ExtensionPass must be run before the FragmentRendererPass as it adds tags that are processed later
         $container->addCompilerPass(new ExtensionPass(), PassConfig::TYPE_BEFORE_OPTIMIZATION, 10);
+        $container->addCompilerPass(new AttributeExtensionPass());
         $container->addCompilerPass(new TwigEnvironmentPass());
         $container->addCompilerPass(new TwigLoaderPass());
         $container->addCompilerPass(new RuntimeLoaderPass(), PassConfig::TYPE_BEFORE_REMOVING);