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FileLocatorInterface allows
mixed
https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Config/FileLocatorInterface.php#L22 . But the actual implementation https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Config/FileLocator.php#L44 doesn't actually work with any parameter. So this issue is there and not really in this class here.There was a problem hiding this comment.
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Well so the question is if FileLocator(Interface) shouldn't allow
mixed
in which case this change is relevant or if it should and appropriate string conversion and or exceptions would've to be implemented there.In both cases moving
is_string
upfront removes some overhead or it could be removed of course.