core <- toCore modules expr
execCore core
--- | Get the length of a SizedWord type
+-- | Get the width of a SizedWord type
sized_word_len :: Type.Type -> Int
sized_word_len ty =
eval_tfp_int len
(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
+
+-- | Get the length of a FSVec type
+fsvec_len :: Type.Type -> Int
+fsvec_len ty =
+ eval_type_level_int len
+ where
+ (tycon, args) = Type.splitTyConApp ty
+ [len, el_ty] = args