errors on file-not-found

In the context of a code generator, I am analyzing existing Ada package via python scripts, using libadalang.
The Context is built via UnitProvider.for_project()

It happens that users feed non-compiling Ada units to the code generator (because the generator runs before the compiler). One case of error is a with clause that points to an Ada package not found in the loaded project (missing a with clause in the project itself for instance).

In this case, libadalang reports no error that I can see, and soldiers on with whatever semantic analysis it can perform despite this missing file. This is a nice behavior in some contexts (an IDE), but not for a code generator. As a result, I end up with None types in the generator, and have to handle all such cases explicitly.

It would be much better if I could get an error (or a callback that let's me handle those errors and decide) when a with clause cannot be resolved.

Did I miss something in the API ?

If not, can this be added as an enhancement request please ?

Thanks