(tycon, args) = Type.splitTyConApp ty
[len] = args
+-- | 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
let res = Unsafe.Coerce.unsafeCoerce hval :: Int
return $ Unsafe.Coerce.unsafeCoerce hval
--- | 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
-
-- These functions build (parts of) a LHSExpr RdrName.
-- | A reference to the Prelude.undefined function.