[PropertyAccess][VarExporter] PropertyAccessor::isReadable() triggers an error when called on a lazy object’s missing property

[MatTheCat]

Symfony version(s) affected

≥ 6.2

Description

Calling PropertyAccessor::isReadable() on a lazy object’s missing property will trigger an error, even if the object is fully loaded.

This is because PropertyAccessor::getReadInfo() will return the property as public as its class has a __get method, and trying to access it will call trigger_error:

symfony/src/Symfony/Component/VarExporter/LazyGhostTrait.php

Line 193 in 3147082

trigger_error(sprintf('Undefined property: %s::$%s in %s on line %s', $this::class, $name, $frame['file'], $frame['line']), \E_USER_NOTICE);

How to reproduce

Call PropertyAccessor::isReadable() on a lazy object’s (like a Doctrine proxy) missing property. Instead of false, you’ll get an ErrorException.

Possible Solution

No response

Additional Context

No response

[nicolas-grekas]

Could you please submit a PR with a failing test case? That'd help a lot here. 🙏

[nicolas-grekas]

Possibly fixed by #54194, please confirm if you can.

[MatTheCat]

I confirm your PR makes #54068’s test pass 🎉 Guess I can close it!