)
import RnHsSyn ( RenamedTyClDecl, RenamedConDecl )
import TcHsSyn ( TcMonoBinds )
-import BasicTypes ( RecFlag(..), NewOrData(..), StrictnessMark(..) )
+import BasicTypes ( RecFlag(..), NewOrData(..) )
import TcMonoType ( tcExtendTopTyVarScope, tcExtendTyVarScope,
tcHsTypeKind, tcHsType, tcHsTopType, tcHsTopBoxedType,
- tcContext
+ tcContext, tcHsTopTypeKind
)
import TcType ( zonkTcTyVarToTyVar, zonkTcThetaType )
import TcEnv ( tcLookupTy, TcTyThing(..) )
import Class ( Class )
import DataCon ( DataCon, dataConSig, mkDataCon, isNullaryDataCon,
- dataConFieldLabels, dataConId
+ dataConFieldLabels, dataConId,
+ markedStrict, notMarkedStrict, markedUnboxed
)
-import MkId ( mkDataConId, mkRecordSelId )
+import MkId ( mkDataConId, mkRecordSelId, mkNewTySelId )
import Id ( getIdUnfolding )
import CoreUnfold ( getUnfoldingTemplate )
import FieldLabel
import Var ( Id, TyVar )
-import Name ( isLocallyDefined, OccName, NamedThing(..) )
+import Name ( Name, isLocallyDefined, OccName, NamedThing(..), nameUnique )
import Outputable
-import TyCon ( TyCon, mkSynTyCon, mkAlgTyCon, isAlgTyCon,
- isSynTyCon, tyConDataCons
+import TyCon ( TyCon, ArgVrcs, mkSynTyCon, mkAlgTyCon, isAlgTyCon,
+ isSynTyCon, tyConDataCons, isNewTyCon
)
import Type ( getTyVar, tyVarsOfTypes,
mkTyConApp, mkTyVarTys, mkForAllTys, mkFunTy,
import Var ( tyVarKind )
import VarSet ( intersectVarSet, isEmptyVarSet )
import Util ( equivClasses )
+import FiniteMap ( FiniteMap, lookupWithDefaultFM )
\end{code}
%************************************************************************
where
kc_con (VanillaCon btys) = mapTc kc_bty btys `thenTc_` returnTc ()
kc_con (InfixCon bty1 bty2) = mapTc kc_bty [bty1,bty2] `thenTc_` returnTc ()
- kc_con (NewCon ty) = tcHsType ty `thenTc_` returnTc ()
+ kc_con (NewCon ty _) = tcHsType ty `thenTc_` returnTc ()
kc_con (RecCon flds) = mapTc kc_field flds `thenTc_` returnTc ()
kc_bty (Banged ty) = tcHsType ty
kc_bty (Unbanged ty) = tcHsType ty
+ kc_bty (Unpacked ty) = tcHsType ty
kc_field (_, bty) = kc_bty bty
\end{code}
%************************************************************************
\begin{code}
-tcTyDecl :: RecFlag -> RenamedTyClDecl -> TcM s TyCon
+tcTyDecl :: RecFlag -> FiniteMap Name ArgVrcs -> RenamedTyClDecl -> TcM s TyCon
-tcTyDecl is_rec (TySynonym tycon_name tyvar_names rhs src_loc)
+tcTyDecl is_rec rec_vrcs (TySynonym tycon_name tyvar_names rhs src_loc)
= tcLookupTy tycon_name `thenNF_Tc` \ (tycon_kind, Just arity, _) ->
tcExtendTopTyVarScope tycon_kind tyvar_names $ \ tyvars _ ->
- tcHsTopType rhs `thenTc` \ rhs_ty ->
+ tcHsTopTypeKind rhs `thenTc` \ (_, rhs_ty) ->
let
-- Construct the tycon
- tycon = mkSynTyCon tycon_name tycon_kind arity tyvars rhs_ty
+ argvrcs = lookupWithDefaultFM rec_vrcs (pprPanic "tcTyDecl: argvrcs:" $ ppr tycon_name)
+ tycon_name
+ tycon = mkSynTyCon tycon_name tycon_kind arity tyvars rhs_ty argvrcs
in
returnTc tycon
-tcTyDecl is_rec (TyData data_or_new context tycon_name tyvar_names con_decls derivings pragmas src_loc)
+tcTyDecl is_rec rec_vrcs (TyData data_or_new context tycon_name tyvar_names con_decls derivings pragmas src_loc)
= -- Lookup the pieces
tcLookupTy tycon_name `thenNF_Tc` \ (tycon_kind, _, ATyCon rec_tycon) ->
tcExtendTopTyVarScope tycon_kind tyvar_names $ \ tyvars _ ->
DataType | all isNullaryDataCon data_cons -> EnumType
| otherwise -> DataType
- tycon = mkAlgTyCon tycon_name tycon_kind tyvars ctxt
+ argvrcs = lookupWithDefaultFM rec_vrcs (pprPanic "tcTyDecl: argvrcs:" $ ppr tycon_name)
+ tycon_name
+
+ tycon = mkAlgTyCon tycon_name tycon_kind tyvars ctxt argvrcs
data_cons
derived_classes
Nothing -- Not a dictionary
= case details of
VanillaCon btys -> tc_datacon btys
InfixCon bty1 bty2 -> tc_datacon [bty1,bty2]
- NewCon ty -> tc_newcon ty
+ NewCon ty mb_f -> tc_newcon ty mb_f
RecCon fields -> tc_rec_con fields
where
tc_datacon btys
mapTc tcHsTopType tys `thenTc` \ arg_tys ->
mk_data_con arg_stricts arg_tys []
- tc_newcon ty
+ tc_newcon ty mb_f
= 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] []
+ let
+ field_label =
+ case mb_f of
+ Nothing -> []
+ Just f -> [mkFieldLabel (getName f) arg_ty (head allFieldLabelTags)]
+ in
+ mk_data_con [notMarkedStrict] [arg_ty] field_label
tc_rec_con fields
= checkTc (null ex_tyvars) (exRecConErr name) `thenTc_`
in_arg_tys (clas,tys) = not $ isEmptyVarSet $
tyVarsOfTypes tys `intersectVarSet` arg_tyvars
-get_strictness (Banged _) = MarkedStrict
-get_strictness (Unbanged _) = NotMarkedStrict
+get_strictness (Banged _) = markedStrict
+get_strictness (Unbanged _) = notMarkedStrict
+get_strictness (Unpacked _) = markedUnboxed
get_pty (Banged ty) = ty
get_pty (Unbanged ty) = ty
+get_pty (Unpacked ty) = ty
\end{code}
returnTc (ids1++ids2, b1 `AndMonoBinds` b2)
mkDataBinds_one tycon
- = ASSERT( isAlgTyCon tycon )
- mapTc (mkRecordSelector tycon) groups `thenTc` \ sel_ids ->
+ = mapTc (mkRecordSelector tycon) groups `thenTc` \ sel_ids ->
let
data_ids = map dataConId data_cons ++ sel_ids
-- For the locally-defined things
-- we need to turn the unfoldings inside the Ids into bindings,
- binds = [ CoreMonoBind data_id (getUnfoldingTemplate (getIdUnfolding data_id))
+ binds | isLocallyDefined tycon
+ = [ CoreMonoBind data_id (getUnfoldingTemplate (getIdUnfolding data_id))
| data_id <- data_ids, isLocallyDefined data_id
]
+ | otherwise
+ = []
in
returnTc (data_ids, andMonoBindList binds)
where
-- Check that all the fields in the group have the same type
-- This check assumes that all the constructors of a given
-- data type use the same type variables
- = checkTc (all (== field_ty) other_tys)
+ = (if null other_fields then (\x->x) else
+ let lbls = [fieldLabelName f | (_,f) <- fields]
+ uniqs = [nameUnique l | l <- lbls]
+
+ in
+ pprTrace "mkRecordSelector" (vcat [ppr fields,
+ ppr lbls,
+ ppr uniqs,
+ hsep [text (show (field_name `compare` fieldLabelName f)) | (_,f) <- fields]
+ ]))
+
+ checkTc (all (== field_ty) other_tys)
(fieldTypeMisMatch field_name) `thenTc_`
returnTc selector_id
where
field_ty
selector_id :: Id
- selector_id = mkRecordSelId first_field_label selector_ty
+ selector_id
+ | isNewTyCon tycon = mkNewTySelId first_field_label selector_ty
+ | otherwise = mkRecordSelId first_field_label selector_ty
\end{code}
projects / ghc-hetmet.git / blobdiff