+-- | Evaluate a core Type representing type level int from the TypeLevel
+-- library to a real int.
+eval_type_level_int :: Type.Type -> Int
+eval_type_level_int ty =
+ unsafeRunGhc $ do
+ -- Automatically import modules for any fully qualified identifiers
+ setDynFlag DynFlags.Opt_ImplicitImportQualified
+
+ let to_int_name = mkRdrName "Data.TypeLevel.Num.Sets" "toInt"
+ let to_int = SrcLoc.noLoc $ HsExpr.HsVar to_int_name
+ let undef = hsTypedUndef $ coreToHsType ty
+ let app = HsExpr.HsApp (to_int) (undef)
+
+ core <- toCore [] app
+ execCore core