- tc_datacon btys
- = let
- arg_stricts = map get_strictness btys
- tys = map get_pty btys
- in
- mapTc tcHsTopType tys `thenTc` \ arg_tys ->
- mk_data_con arg_stricts arg_tys []
-
- tc_newcon ty
- = tcHsTopBoxedType ty `thenTc` \ arg_ty ->
- -- can't allow an unboxed type here, because we're effectively
- -- going to remove the constructor while coercing it to a boxed type.
- mk_data_con [NotMarkedStrict] [arg_ty] []
-
- tc_rec_con fields
- = checkTc (null ex_tyvars) (exRecConErr name) `thenTc_`
- mapTc tc_field fields `thenTc` \ field_label_infos_s ->
- let
- field_label_infos = concat field_label_infos_s
- arg_stricts = [strict | (_, _, strict) <- field_label_infos]
- arg_tys = [ty | (_, ty, _) <- field_label_infos]
-
- field_labels = [ mkFieldLabel (getName name) ty tag
- | ((name, ty, _), tag) <- field_label_infos `zip` allFieldLabelTags ]
- in
- mk_data_con arg_stricts arg_tys field_labels
-
- tc_field (field_label_names, bty)
- = tcHsTopType (get_pty bty) `thenTc` \ field_ty ->
- returnTc [(name, field_ty, get_strictness bty) | name <- field_label_names]
-
- mk_data_con arg_stricts arg_tys fields
- = -- Now we've checked all the field types we must
- -- zonk the existential tyvars to finish the kind
- -- inference on their kinds, and commit them to being
- -- immutable type variables. (The top-level tyvars are
- -- already fixed, by the preceding kind-inference pass.)
- mapNF_Tc zonkTcTyVarToTyVar ex_tyvars `thenNF_Tc` \ ex_tyvars' ->
- zonkTcThetaType ex_theta `thenNF_Tc` \ ex_theta' ->
- let
- data_con = mkDataCon name arg_stricts fields
- tyvars (thinContext arg_tys ctxt)
- ex_tyvars' ex_theta'
- arg_tys
- tycon data_con_id
- data_con_id = mkDataConId data_con
- in
- returnNF_Tc data_con
+ kc_sig_type = case new_or_data of
+ DataType -> kcHsSigType
+ NewType -> kcHsLiftedSigType
+ -- Can't allow an unlifted type here, because we're effectively
+ -- going to remove the constructor while coercing it to a lifted type.
+
+
+tcConDecls :: NewOrData -> TyCon -> [TyVar] -> ThetaType
+ -> DataConDetails RenamedConDecl -> TcM (DataConDetails DataCon)
+
+tcConDecls new_or_data tycon tyvars ctxt con_decls
+ = case con_decls of
+ Unknown -> returnTc Unknown
+ HasCons n -> returnTc (HasCons n)
+ DataCons cs -> mapTc tc_con_decl cs `thenTc` \ data_cons ->
+ returnTc (DataCons data_cons)
+ where
+ tc_con_decl (ConDecl name wkr_name ex_tvs ex_ctxt details src_loc)
+ = tcAddSrcLoc src_loc $
+ tcHsTyVars ex_tvs (kcConDetails new_or_data ex_ctxt details) $ \ ex_tyvars ->
+ tcHsTheta ex_ctxt `thenTc` \ ex_theta ->
+ case details of
+ VanillaCon btys -> tc_datacon ex_tyvars ex_theta btys
+ InfixCon bty1 bty2 -> tc_datacon ex_tyvars ex_theta [bty1,bty2]
+ RecCon fields -> tc_rec_con ex_tyvars ex_theta fields
+ where
+
+ tc_datacon ex_tyvars ex_theta btys
+ = mapTc tcHsType (map getBangType btys) `thenTc` \ arg_tys ->
+ mk_data_con ex_tyvars ex_theta (map getBangStrictness btys) arg_tys []
+
+ tc_rec_con ex_tyvars ex_theta fields
+ = checkTc (null ex_tyvars) (exRecConErr name) `thenTc_`
+ mapTc tc_field (fields `zip` allFieldLabelTags) `thenTc` \ field_labels_s ->
+ let
+ field_labels = concat field_labels_s
+ arg_stricts = [str | (ns, bty) <- fields,
+ let str = getBangStrictness bty,
+ n <- ns -- One for each. E.g x,y,z :: !Int
+ ]
+ in
+ mk_data_con ex_tyvars ex_theta arg_stricts
+ (map fieldLabelType field_labels) field_labels
+
+ tc_field ((field_label_names, bty), tag)
+ = tcHsType (getBangType bty) `thenTc` \ field_ty ->
+ returnTc [mkFieldLabel (getName name) tycon field_ty tag | name <- field_label_names]
+
+ mk_data_con ex_tyvars ex_theta arg_stricts arg_tys fields
+ = let
+ data_con = mkDataCon name arg_stricts fields
+ tyvars (thinContext arg_tys ctxt)
+ ex_tyvars ex_theta
+ arg_tys
+ tycon data_con_id data_con_wrap_id
+
+ data_con_id = mkDataConId wkr_name data_con
+ data_con_wrap_id = mkDataConWrapId data_con
+ in
+ returnNF_Tc data_con