symfony
diff --git a/‎DependencyInjection/MonologExtension.php
Lines changed: 16 additions & 0 deletions b/‎DependencyInjection/MonologExtension.php
Lines changed: 16 additions & 0 deletions
diff --git a/‎Tests/DependencyInjection/Fixtures/AsMonologProcessor/FooProcessor.php
Lines changed: 23 additions & 0 deletions b/‎Tests/DependencyInjection/Fixtures/AsMonologProcessor/FooProcessor.php
Lines changed: 23 additions & 0 deletions
diff --git a/‎Tests/DependencyInjection/Fixtures/AsMonologProcessor/RedeclareMethodProcessor.php
Lines changed: 22 additions & 0 deletions b/‎Tests/DependencyInjection/Fixtures/AsMonologProcessor/RedeclareMethodProcessor.php
Lines changed: 22 additions & 0 deletions
diff --git a/‎Tests/DependencyInjection/MonologExtensionTest.php
Lines changed: 47 additions & 0 deletions b/‎Tests/DependencyInjection/MonologExtensionTest.php
Lines changed: 47 additions & 0 deletions
@@ -11,6 +11,7 @@
 
 namespace Symfony\Bundle\MonologBundle\DependencyInjection;
 
+use Monolog\Attribute\AsMonologProcessor;
 use Monolog\Handler\FingersCrossed\ErrorLevelActivationStrategy;
 use Monolog\Logger;
 use Monolog\Processor\ProcessorInterface;
@@ -148,6 +149,21 @@ public function load(array $configs, ContainerBuilder $container)
                 ]);
             }
         }
+
+        if (80000 <= \PHP_VERSION_ID && method_exists($container, 'registerAttributeForAutoconfiguration')) {
+            $container->registerAttributeForAutoconfiguration(AsMonologProcessor::class, static function (ChildDefinition $definition, AsMonologProcessor $attribute, \Reflector $reflector): void {
+                $tagAttributes = get_object_vars($attribute);
+                if ($reflector instanceof \ReflectionMethod) {
+                    if (isset($tagAttributes['method'])) {
+                        throw new \LogicException(sprintf('AsMonologProcessor attribute cannot declare a method on "%s::%s()".', $reflector->class, $reflector->name));
+                    }
+
+                    $tagAttributes['method'] = $reflector->getName();
+                }
+
+                $definition->addTag('monolog.processor', $tagAttributes);
+            });
+        }
     }
 
     /**
 
@@ -0,0 +1,23 @@
+<?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\MonologBundle\Tests\DependencyInjection\Fixtures\AsMonologProcessor;
+
+use Monolog\Attribute\AsMonologProcessor;
+
+#[AsMonologProcessor(handler: 'foo_handler')]
+class FooProcessor
+{
+    #[AsMonologProcessor(channel: 'ccc_channel')]
+    public function __invoke(): void
+    {
+    }
+}
@@ -0,0 +1,22 @@
+<?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\MonologBundle\Tests\DependencyInjection\Fixtures\AsMonologProcessor;
+
+use Monolog\Attribute\AsMonologProcessor;
+
+class RedeclareMethodProcessor
+{
+    #[AsMonologProcessor(method: 'foobar')]
+    public function __invoke(): void
+    {
+    }
+}
@@ -12,13 +12,16 @@
 namespace Symfony\Bundle\MonologBundle\Tests\DependencyInjection;
 
 use InvalidArgumentException;
+use Monolog\Attribute\AsMonologProcessor;
 use Monolog\Handler\FingersCrossed\ErrorLevelActivationStrategy;
 use Monolog\Handler\RollbarHandler;
 use Monolog\Logger;
 use Monolog\Processor\UidProcessor;
 use Symfony\Bridge\Monolog\Processor\SwitchUserTokenProcessor;
 use Symfony\Bundle\MonologBundle\DependencyInjection\MonologExtension;
 use Symfony\Bundle\MonologBundle\DependencyInjection\Compiler\LoggerChannelPass;
+use Symfony\Bundle\MonologBundle\Tests\DependencyInjection\Fixtures\AsMonologProcessor\FooProcessor;
+use Symfony\Bundle\MonologBundle\Tests\DependencyInjection\Fixtures\AsMonologProcessor\RedeclareMethodProcessor;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Definition;
 use Symfony\Component\DependencyInjection\ParameterBag\EnvPlaceholderParameterBag;
@@ -816,6 +819,50 @@ public function testProcessorAutoConfiguration()
         $this->assertEquals('reset', $tags['kernel.reset'][0]['method']);
     }
 
+    /**
+     * @requires PHP 8.0
+     */
+    public function testAsMonologProcessorAutoconfigurationRedeclareMethod(): void
+    {
+        if (!\class_exists(AsMonologProcessor::class, true)) {
+            $this->markTestSkipped('Monolog >= 2.3.6 is needed.');
+        }
+
+        $this->expectException(\LogicException::class);
+        $this->expectExceptionMessage('AsMonologProcessor attribute cannot declare a method on "Symfony\Bundle\MonologBundle\Tests\DependencyInjection\Fixtures\AsMonologProcessor\RedeclareMethodProcessor::__invoke()".');
+
+        $this->getContainer([], [
+            RedeclareMethodProcessor::class => (new Definition(RedeclareMethodProcessor::class))->setAutoconfigured(true),
+        ]);
+    }
+
+    /**
+     * @requires PHP 8.0
+     */
+    public function testAsMonologProcessorAutoconfiguration(): void
+    {
+        if (!\class_exists(AsMonologProcessor::class, true)) {
+            $this->markTestSkipped('Monolog >= 2.3.6 is needed.');
+        }
+
+        $container = $this->getContainer([], [
+            FooProcessor::class => (new Definition(FooProcessor::class))->setAutoconfigured(true),
+        ]);
+
+        $this->assertSame([
+            [
+                'channel' => null,
+                'handler' => 'foo_handler',
+                'method' => null,
+            ],
+            [
+                'channel' => 'ccc_channel',
+                'handler' => null,
+                'method' => '__invoke',
+            ],
+        ], $container->getDefinition(FooProcessor::class)->getTag('monolog.processor'));
+    }
+
     protected function getContainer(array $config = [], array $thirdPartyDefinitions = [])
     {
         $container = new ContainerBuilder(new EnvPlaceholderParameterBag());