It's likely that any code needing to resolve a java.lang.reflect.Class/Methods will need a suitable MethodHandles.Lookup.

Maybe we can help users requiring a lookup, by capturing the Lookup used to extract the CodeModel/FuncOp from the original Method in the FuncOp itself

My guess is this will need to be via a method on the FuncOp which returns Optional<MethodHandles.LookUp>....

In HAT we have to carry the original lookup around just so we can use them as we traverse the code mode to resolve classes/methods as needed.

I suspect other users of the CodeModel will likely have to jump through similar hoops. I think this will make life much easier.

Of course transformers will have to copy/convey this captured data (as it does location/attributes) as as transform models.