Support for Symfony HandleTrait

[alexander-schranz]

I think it would be great if the extension could automatically recognize the type of HandleTrait of symfony.

The given message to the handle trait example:

$this->handle(new CreateUserMessage());

does only have 1 Handler which return type the return type of the handle trait will be. Example:

class CreateUserMessageHandler {
    public function __invoke(CreateUserMessage $message): User
    {
        return new User($message->getUserName());
    }
}

The bin/console debug:messenger already shows the mapping between Message and Handlers.

The HandleStamp contains under the getResult method the result of every handler: https://github.com/symfony/symfony/blob/8eed84bb2df613101949ca2e786ac383d2f349fd/src/Symfony/Component/Messenger/HandleTrait.php#L45. The HandleTrait only allows one handler per message, that make the result recognize able. Not sure if its even possible to overwrite the result of a trait. Sadly my skillset for providing this myself is to low, but would think it would be a great feature.

Currenty workaround is:

/** @var User */
$user = $this->handle(new CreateUserMessage());

The first parameter of console.command.messenger_debug service would contain the mapping between message and handler so we can guess the type from there.

[bnowak]

Did anybody take a look on that so far to give some insights? Today, I'm going to start working on this.

[bnowak]

So far, I researched that in current version not having of this feature request, it could be a blocker.

but I'm keep digging 😉

[bnowak]

I'm happy to announce that PR for that is done and ready for review here :)

Feel free to review and give your feedback, thank you :)

[bnowak]

There's also another QueryBus-classes related topic which I wanted to cover with reusing this feature. It's described in this comment. If you have idea how to solve it, please share it here :) Thanks, again

[ondrejmirtes]

Implemented #404