Could not extract location from getSealedSubclasses declaration

[midery]

We use KSP to analyze all classes in module and file location for each class is crucial.
However, if we try to do something like:

classDeclaration
  .getSealedSubclasses()
  .forEach { sealedClass ->
    sealedClass.location //or sealedClass.parentDeclaration.containingFile
  }

We will get NonExistLocation or null.
Is it an expected behavior or could it be fixed in the future?

[neetopia]

Is your sealed sub classes in source code or from another module/library? Location is only available for symbols on the current compile module.

[midery]

In this scenario, sealed sub classes were located in source code from current module