findAll and findBy should return list

[stchr]

https://github.com/doctrine/orm/blob/3.6.x/src/EntityRepository.php already has this narrowed return type

[greg0ire]

This kind of change should target 4.2.x

[GromNaN]

This kind of change should target 4.2.x

I agree.

This is an additional constraint added to this methods. Do all implementations in Doctrine projects return a list?

The list type must be also in Doctrine ODM EntityPersister::loadAll() that is called by EntityRepository::findBy()

This needs to be explored, it might be an indexed array in certain conditions?
https://github.com/doctrine/orm/blob/4262eb495b4d2a53b45de1ac58881e0091f2970f/src/Internal/Hydration/ObjectHydrator.php#L508

[stof]

@GromNaN the repository methods don't allow asking for indexed results (the ObjectHydrator indeed does not always return a list, it depends on the result set mapping).