-- friends:
-- (PprType can see all the representations it's trying to print)
-import TypeRep ( Type(..), TyNote(..), Kind, liftedTypeKind ) -- friend
-import Type ( SourceType(..), isUTyVar, eqKind )
-import TcType ( ThetaType, PredType,
+import TypeRep ( Type(..), TyNote(..), Kind ) -- friend
+import Type ( SourceType(..) )
+import TcType ( ThetaType, PredType, TyThing(..),
tcSplitSigmaTy, isPredTy, isDictTy,
tcSplitTyConApp_maybe, tcSplitFunTy_maybe
)
import Var ( TyVar, tyVarKind )
import Class ( Class )
import TyCon ( TyCon, isPrimTyCon, isTupleTyCon, tupleTyConBoxity,
- maybeTyConSingleCon, isEnumerationTyCon,
- tyConArity, tyConName
+ maybeTyConSingleCon, isEnumerationTyCon, tyConArity
)
-- others:
-import CmdLineOpts ( opt_PprStyle_RawTypes )
import Maybes ( maybeToBool )
import Name ( getOccString, getOccName )
+import OccName ( occNameUserString )
import Outputable
import Unique ( Uniquable(..) )
-import BasicTypes ( tupleParens )
+import Util ( lengthIs )
+import BasicTypes ( IPName(..), tupleParens, ipNameName )
import PrelNames -- quite a few *Keys
\end{code}
pprSourceType :: SourceType -> SDoc
pprSourceType (ClassP clas tys) = pprClassPred clas tys
-pprSourceType (IParam n ty) = hsep [ptext SLIT("?") <> ppr n,
- ptext SLIT("::"), ppr ty]
-pprSourceType (NType tc tys) = ppr tc <+> hsep (map pprParendType tys)
+pprSourceType (IParam n ty) = hsep [ppr n, dcolon, ppr ty]
+pprSourceType (NType tc tys) = ppr tc <+> sep (map pprParendType tys)
pprClassPred :: Class -> [Type] -> SDoc
-pprClassPred clas tys = ppr clas <+> hsep (map pprParendType tys)
+pprClassPred clas tys = ppr clas <+> sep (map pprParendType tys)
pprTheta :: ThetaType -> SDoc
-pprTheta theta = parens (hsep (punctuate comma (map pprPred theta)))
+pprTheta theta = parens (sep (punctuate comma (map pprPred theta)))
instance Outputable Type where
ppr ty = pprType ty
-instance Outputable PredType where
+instance Outputable SourceType where
ppr = pprPred
+
+instance Outputable name => Outputable (IPName name) where
+ ppr (Dupable n) = char '?' <> ppr n -- Ordinary implicit parameters
+ ppr (Linear n) = char '%' <> ppr n -- Splittable implicit parameters
+
+instance Outputable name => OutputableBndr (IPName name) where
+ pprBndr _ n = ppr n -- Simple for now
+
+instance Outputable TyThing where
+ ppr (AnId id) = ptext SLIT("AnId") <+> ppr id
+ ppr (ATyCon tc) = ptext SLIT("ATyCon") <+> ppr tc
+ ppr (AClass cl) = ptext SLIT("AClass") <+> ppr cl
+ ppr (ADataCon dc) = ptext SLIT("ADataCon") <+> ppr dc
\end{code}
other -> maybeParen ctxt_prec tYCON_PREC
(ppr tycon <+> ppr_ty tYCON_PREC ty)
- -- USAGE CASE
- | (tycon `hasKey` usOnceTyConKey || tycon `hasKey` usManyTyConKey),
- null tys
- = -- For usages (! and .), always print bare OccName, without pkg/mod/uniq
- ppr (getOccName (tyConName tycon))
-
-- TUPLE CASE (boxed and unboxed)
| isTupleTyCon tycon,
- length tys == tyConArity tycon -- No magic if partially applied
+ tys `lengthIs` tyConArity tycon -- No magic if partially applied
= tupleParens (tupleTyConBoxity tycon)
(sep (punctuate comma (map (ppr_ty tOP_PREC) tys)))
[ty] <- tys
= brackets (ppr_ty tOP_PREC ty)
+ -- PARALLEL ARRAY CASE
+ | tycon `hasKey` parrTyConKey,
+ [ty] <- tys
+ = pabrackets (ppr_ty tOP_PREC ty)
+
-- GENERAL CASE
| otherwise
= ppr_tc_app ctxt_prec tycon tys
+ where
+ pabrackets p = ptext SLIT("[:") <> p <> ptext SLIT(":]")
+
ppr_ty ctxt_prec ty@(ForAllTy _ _)
= getPprStyle $ \ sty ->
]
where
(tyvars, theta, tau) = tcSplitSigmaTy ty
-
- pp_tyvars sty = sep (map pprTyVarBndr some_tyvars)
- where
- some_tyvars | userStyle sty && not opt_PprStyle_RawTypes
- = filter (not . isUTyVar) tyvars -- hide uvars from user
- | otherwise
- = tyvars
+ pp_tyvars sty = sep (map pprTyVarBndr tyvars)
ppr_theta [] = empty
ppr_theta theta = pprTheta theta <+> ptext SLIT("=>")
= maybeParen ctxt_prec tYCON_PREC $
ppr_ty fUN_PREC ty1 <+> ppr_ty tYCON_PREC ty2
-ppr_ty ctxt_prec (UsageTy u ty)
- = maybeParen ctxt_prec tYCON_PREC $
- ptext SLIT("__u") <+> ppr_ty tYCON_PREC u
- <+> ppr_ty tYCON_PREC ty
- -- fUN_PREC would be logical for u, but it yields a reduce/reduce conflict with AppTy
-
ppr_ty ctxt_prec (NoteTy (SynNote ty) expansion)
= ppr_ty ctxt_prec ty
-- = ppr_ty ctxt_prec expansion -- if we don't want to see syntys
pprTyVarBndr :: TyVar -> SDoc
pprTyVarBndr tyvar
= getPprStyle $ \ sty ->
- if (ifaceStyle sty && not (kind `eqKind` liftedTypeKind)) || debugStyle sty then
+ if debugStyle sty then
hsep [ppr tyvar, dcolon, pprParendKind kind]
-- See comments with ppDcolon in PprCore.lhs
else
TyVarTy _ -> "*"
AppTy fun _ -> getTyDescription fun
FunTy _ res -> '-' : '>' : fun_result res
- TyConApp tycon _ -> getOccString tycon
+ TyConApp tycon _ -> occNameUserString (getOccName tycon)
NoteTy (FTVNote _) ty -> getTyDescription ty
NoteTy (SynNote ty1) _ -> getTyDescription ty1
SourceTy sty -> getSourceTyDescription sty
getSourceTyDescription (ClassP cl tys) = getOccString cl
getSourceTyDescription (NType tc tys) = getOccString tc
-getSourceTyDescription (IParam id ty) = getOccString id
+getSourceTyDescription (IParam ip ty) = getOccString (ipNameName ip)
\end{code}