Return of mixed in `$this->createQueryBuilder()->getQuery()->getResult()` when alias is `ev` or `event`

[ruudk]

I have no idea what this is, or what causes it.

 // This all works: list<Event>
dumpType($this->createQueryBuilder('e')->getQuery()->getResult());
dumpType($this->createQueryBuilder('my_name')->getQuery()->getResult());
dumpType($this->createQueryBuilder('oo')->getQuery()->getResult());
dumpType($this->createQueryBuilder('abcdef')->getQuery()->getResult());
dumpType($this->createQueryBuilder('user')->getQuery()->getResult());
dumpType($this->createQueryBuilder('av')->getQuery()->getResult());
dumpType($this->createQueryBuilder('eve')->getQuery()->getResult());
dumpType($this->createQueryBuilder('even')->getQuery()->getResult());

// This returns: mixed
dumpType($this->createQueryBuilder('ev')->getQuery()->getResult());
dumpType($this->createQueryBuilder('event')->getQuery()->getResult());

I also tried this on a different entity repository, for an entity named differently: Type. There, it gives the same problem.

So what is the cause for ev and event to behave weird?

[janedbal]

Replicated: #609

[ruudk]

I was just using Xdebug to find the issue:

It's throwing here:

phpstan-doctrine/src/Type/Doctrine/ArgumentsProcessor.php

Lines 61 to 66 in be66017

	if ($value->isClassStringType()->yes() && count($value->getClassStringObjectType()->getObjectClassNames()) === 1) {
	/** @var class-string $className */
	$className = $value->getClassStringObjectType()->getObjectClassNames()[0];
	if ($this->objectMetadataResolver->isTransient($className)) {
	throw new DynamicQueryBuilderArgumentException();
	}

[ruudk]

It seems that $className is the alias ev now:

[ruudk]

Interesting:

It thinks this ConstantStringType is a ClassStringType

[ruudk]

It seems that I have a class called ev and event. The last one makes sense, somewhere. But the first one? Interesting.

https://.com/phpstan/phpstan-src/blob/5480d27383ffee399037c31d461c5a85344128ca/src/Type/Constant/ConstantStringType.php#L83-L92

[janedbal]

Yes, because reflector see Event class as existing due to this stub:

• phar:///app/vendor/phpstan/phpstan/phpstan.phar/vendor/ondrejmirtes/better-reflection/src/SourceLocator/SourceStubber/../../../../../jetbrains/phpstorm-stubs/event/event.stub

[janedbal]

@ondrejmirtes added this condition here. I think we should be more careful where we do this check. Imo only in ->from(class-name) etc. Not in such a generic way for every argument.

[ondrejmirtes]

Yeah, it should throw only in arguments that expect class-string. Which is reasonable to assume in Doctrine that it must not be transient.

[janedbal]

I believe it would be the same issue as #566