Closed
Description
Symfony version(s) affected
6.2.*
Description
It seems that under some circumstances that have yet to be determined, making a service lazy with the lazy ghost trait causes the issue in the title.
How to reproduce
I might work on a reproducer. Until I have built one, here is what my service looks like:
<?php
declare(strict_types=1);
namespace App\Service;
class BuggyService
{
/** @var array<string, int> */
private array $foo;
public function __construct()
{
}
public function __invoke(): void
{
$this->foo['hello'] = 42;
}
}https://github.com/greg0ire/symfony-48562
A workaround is to initialize the variable to an empty array.
Possible Solution
No response
Additional Context
Here is the corresponding stack trace:
[critical] Error thrown while running command "expose:bug -vvv". Message: "Cannot access uninitialized non-nullable property App\Service\BuggyService::$coupons by reference"
[debug] Command "expose:bug -vvv" exited with code "1"
In LazyObjectRegistry.php line 99:
[Error]
Cannot access uninitialized non-nullable property App\Service\BuggyService::$coupons by reference
Exception trace:
at /tmp/bug_app/vendor/symfony/var-exporter/Internal/LazyObjectRegistry.php:99
App\Service\BuggyService::Symfony\Component\VarExporter\Internal\{closure}() at /tmp/bug_app/vendor/symfony/var-exporter/LazyGhostTrait.php:206
Container26L4KTM\BuggyService_ba73178->__get() at /tmp/bug_app/src/Service/BuggyService.php:18
App\Service\BuggyService->__invoke() at /tmp/bug_app/src/Command/ExposeBug.php:26
App\Command\ExposeBug->execute() at /tmp/bug_app/vendor/symfony/console/Command/Command.php:312
Symfony\Component\Console\Command\Command->run() at /tmp/bug_app/vendor/symfony/console/Application.php:1038
Symfony\Component\Console\Application->doRunCommand() at /tmp/bug_app/vendor/symfony/framework-bundle/Console/Application.php:88
Symfony\Bundle\FrameworkBundle\Console\Application->doRunCommand() at /tmp/bug_app/vendor/symfony/console/Application.php:312
Symfony\Component\Console\Application->doRun() at /tmp/bug_app/vendor/symfony/framework-bundle/Console/Application.php:77
Symfony\Bundle\FrameworkBundle\Console\Application->doRun() at /tmp/bug_app/vendor/symfony/console/Application.php:168
Symfony\Component\Console\Application->run() at /tmp/bug_app/vendor/symfony/runtime/Runner/Symfony/ConsoleApplicationRunner.php:54
Symfony\Component\Runtime\Runner\Symfony\ConsoleApplicationRunner->run() at /tmp/bug_app/vendor/autoload_runtime.php:29
require_once() at /tmp/bug_app/bin/console:11
expose:bug
What's really crazy with this bug is that changing the variable name to e.g. coupon or foo fixes it, while changing it to toto doesn't (yes, I have cleared my Symfony cache). 🤯
UPDATE: clearing the cache with rm -rf makes a difference