feature #45273 [Messenger] Allow AsMessageHandler attribute on methods (mjpvandenberg, fabpot)

This PR was merged into the 6.1 branch.

Discussion
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[Messenger] Allow AsMessageHandler attribute on methods

| Q             | A
| ------------- | ---
| Branch?       | 6.1
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Tickets       | none
| License       | MIT
| Doc PR        | tbd

Similar to the `#[AsEventListener]` attribute, this PR allows for using the `#[AsMessageHandler]` attribute on methods.

Combining class-level and method-level usage inside a single class is supported, as shown by the adapted `MessengerPassTest::testTaggedMessageHandler` test.

Commits
-------

fc19ed5852 Fix deps
fe3d91247a [Messenger] Allow AsMessageHandler attribute on methods

Author: fabpot

DependencyInjection/FrameworkExtension.php

@@ -623,11 +623,16 @@ public function load(array $configs, ContainerBuilder $container)
         $container->registerAttributeForAutoconfiguration(AsController::class, static function (ChildDefinition $definition, AsController $attribute): void {
             $definition->addTag('controller.service_arguments');
         });
-        $container->registerAttributeForAutoconfiguration(AsMessageHandler::class, static function (ChildDefinition $definition, AsMessageHandler $attribute): void {
+        $container->registerAttributeForAutoconfiguration(AsMessageHandler::class, static function (ChildDefinition $definition, AsMessageHandler $attribute, \ReflectionClass|\ReflectionMethod $reflector): void {
             $tagAttributes = get_object_vars($attribute);
             $tagAttributes['from_transport'] = $tagAttributes['fromTransport'];
             unset($tagAttributes['fromTransport']);
-
+            if ($reflector instanceof \ReflectionMethod) {
+                if (isset($tagAttributes['method'])) {
+                    throw new LogicException(sprintf('AsMessageHandler attribute cannot declare a method on "%s::%s()".', $reflector->class, $reflector->name));
+                }
+                $tagAttributes['method'] = $reflector->getName();
+            }
             $definition->addTag('messenger.message_handler', $tagAttributes);
         });
 

composer.json

@@ -47,7 +47,7 @@
         "symfony/http-client": "^5.4|^6.0",
         "symfony/lock": "^5.4|^6.0",
         "symfony/mailer": "^5.4|^6.0",
-        "symfony/messenger": "^5.4|^6.0",
+        "symfony/messenger": "^6.1",
         "symfony/mime": "^5.4|^6.0",
         "symfony/notifier": "^5.4|^6.0",
         "symfony/process": "^5.4|^6.0",