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Description
I found a severe pitfall in this example code:
symfony-docs/event_dispatcher.rst
Lines 198 to 208 inb9f8400
| :class:`Symfony\\Component\\EventDispatcher\\Attribute\\AsEventListener` | |
| can also be applied to methods directly:: | |
| namespace App\EventListener; | |
| use Symfony\Component\EventDispatcher\Attribute\AsEventListener; | |
| final class MyMultiListener | |
| { | |
| #[AsEventListener] | |
| public function onCustomEvent(CustomEvent $event): void |
There seems to be an implicit assumption here that classCustomEvent has been defined and exists in the same namespace.
IfCustomEvent is defined in theApp\Event namespace used by other examples in this file then theAsEventListener attribute fails silently and the listener method will never do anything.
Specifically, there is a missinguse statement here and it's not easy to debug.
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