--- a/src/HOL/Tools/Datatype/datatype_codegen.ML Wed Feb 12 08:35:56 2014 +0100
+++ b/src/HOL/Tools/Datatype/datatype_codegen.ML Wed Feb 12 08:35:56 2014 +0100
@@ -13,15 +13,11 @@
fun add_code_for_datatype fcT_name thy =
let
- val (As', ctr_specs) = Datatype_Data.the_spec thy fcT_name;
- val {inject = inject_thms, distinct = distinct_thms, case_rewrites = case_thms, ...} =
- Datatype_Data.the_info thy fcT_name;
-
- val As = map TFree As';
- val fcT = Type (fcT_name, As);
- val ctrs = map (fn (c, arg_Ts) => (c, arg_Ts ---> fcT)) ctr_specs;
+ val ctxt = Proof_Context.init_global thy
+ val SOME {ctrs, injects, distincts, case_thms, ...} = Ctr_Sugar.ctr_sugar_of ctxt fcT_name
+ val Type (_, As) = body_type (fastype_of (hd ctrs))
in
- Ctr_Sugar_Code.add_ctr_code fcT_name As ctrs inject_thms distinct_thms case_thms thy
+ Ctr_Sugar_Code.add_ctr_code fcT_name As (map dest_Const ctrs) injects distincts case_thms thy
end;
val _ = Theory.setup (Datatype_Data.interpretation (K (fold add_code_for_datatype)));