%
-% (c) The GRASP/AQUA Project, Glasgow University, 1993-1996
+% (c) The GRASP/AQUA Project, Glasgow University, 1993-1998
%
\section[MkIface]{Print an interface for a module}
import HsSyn
import RdrHsSyn ( RdrName(..) )
-import RnHsSyn ( RenamedHsModule )
import BasicTypes ( Fixity(..), FixityDirection(..), NewOrData(..), IfaceFlavour(..),
+ StrictnessMark(..),
pprModule
)
import RnMonad
import WorkWrap ( getWorkerIdAndCons )
import CmdLineOpts
-import Id ( idType, dataConRawArgTys, dataConFieldLabels,
- idInfo, omitIfaceSigForId,
- dataConStrictMarks, StrictnessMark(..),
- IdSet, idSetToList, unionIdSets, unitIdSet, minusIdSet,
- isEmptyIdSet, elementOfIdSet, emptyIdSet, mkIdSet,
- pprId, getIdSpecialisation,
- Id
+import Id ( Id, idType, idInfo, omitIfaceSigForId,
+ getIdSpecialisation
)
+import Var ( isId )
+import VarSet
+import DataCon ( dataConSig, dataConFieldLabels, dataConStrictMarks )
import IdInfo ( IdInfo, StrictnessInfo, ArityInfo, InlinePragInfo(..), inlinePragInfo,
- arityInfo, ppArityInfo, strictnessInfo, ppStrictnessInfo,
+ arityInfo, ppArityInfo,
+ strictnessInfo, ppStrictnessInfo,
+ cafInfo, ppCafInfo,
bottomIsGuaranteed, workerExists,
)
-import CoreSyn ( CoreExpr, CoreBinding, GenCoreExpr, GenCoreBinding(..) )
-import CoreUnfold ( calcUnfoldingGuidance, UnfoldingGuidance(..), Unfolding,
- okToUnfoldInHiFile
- )
-import FreeVars ( exprFreeVars )
-import Name ( isLocallyDefined, isWiredInName, modAndOcc, nameModule, pprOccName,
- OccName, occNameString, nameOccName, nameString, isExported,
- Name {-instance NamedThing-}, Provenance, NamedThing(..)
+import CoreSyn ( CoreExpr, CoreBind, Bind(..) )
+import CoreUtils ( exprSomeFreeVars )
+import CoreUnfold ( calcUnfoldingGuidance, UnfoldingGuidance(..),
+ Unfolding, okToUnfoldInHiFile )
+import Name ( isLocallyDefined, isWiredInName, modAndOcc, nameModule,
+ OccName, occNameString, isExported,
+ Name, NamedThing(..)
)
import TyCon ( TyCon, getSynTyConDefn, isSynTyCon, isNewTyCon, isAlgTyCon,
tyConTheta, tyConTyVars, tyConDataCons
import SpecEnv ( specEnvToList )
import FieldLabel ( fieldLabelName, fieldLabelType )
import Type ( mkSigmaTy, splitSigmaTy, mkDictTy,
- mkTyVarTys, Type, ThetaType
+ Type, ThetaType
)
-import PprEnv -- not sure how much...
import PprType
import PprCore ( pprIfaceUnfolding )
import Bag ( bagToList, isEmptyBag )
import Maybes ( catMaybes, maybeToBool )
-import FiniteMap ( emptyFM, addToFM, addToFM_C, lookupFM, fmToList, eltsFM, FiniteMap )
-import UniqFM ( UniqFM, lookupUFM, listToUFM )
-import Util ( sortLt, zipWithEqual, zipWith3Equal, mapAccumL )
+import FiniteMap ( emptyFM, addToFM, addToFM_C, fmToList, FiniteMap )
+import UniqFM ( lookupUFM, listToUFM )
+import UniqSet ( uniqSetToList )
+import Util ( sortLt, mapAccumL )
import Outputable
\end{code}
-> [TyCon] -> [Class]
-> Bag InstInfo
-> [Id] -- Ids used at code-gen time; they have better pragma info!
- -> [CoreBinding] -- In dependency order, later depend on earlier
+ -> [CoreBind] -- In dependency order, later depend on earlier
-> IO ()
endIface :: Maybe Handle -> IO ()
Nothing -> return Nothing -- not producing any .hi file
Just fn -> do
if_hdl <- openFile fn WriteMode
- hPutStrLn if_hdl ("_interface_ "++ _UNPK_ mod ++ ' ':show (opt_HiVersion :: Int))
+ hPutStr if_hdl ("__interface "++ _UNPK_ mod ++ ' ':show (opt_HiVersion :: Int))
+ hPutStrLn if_hdl " where"
return (Just if_hdl)
endIface Nothing = return ()
ifaceMain Nothing iface_stuff = return ()
ifaceMain (Just if_hdl)
(import_usages, ExportEnv avails fixities, instance_modules)
- =
- ifaceInstanceModules if_hdl instance_modules >>
- ifaceUsages if_hdl import_usages >>
- ifaceExports if_hdl avails >>
- ifaceFixities if_hdl fixities >>
+ = do
+ ifaceImports if_hdl import_usages
+ ifaceInstanceModules if_hdl instance_modules
+ ifaceExports if_hdl avails
+ ifaceFixities if_hdl fixities
return ()
ifaceDecls Nothing tycons classes inst_info final_ids simplified = return ()
| null_decls = return ()
-- You could have a module with just (re-)exports/instances in it
| otherwise
- = ifaceInstances hdl inst_infos >>= \ needed_ids ->
- hPutStr hdl "_declarations_\n" >>
- ifaceClasses hdl classes >>
+ = ifaceClasses hdl classes >>
+ ifaceInstances hdl inst_infos >>= \ needed_ids ->
ifaceTyCons hdl tycons >>
ifaceBinds hdl needed_ids final_ids binds >>
return ()
\end{code}
\begin{code}
-ifaceUsages if_hdl import_usages
- = hPutStr if_hdl "_usages_\n" >>
- hPutCol if_hdl upp_uses (sortLt lt_imp_vers import_usages)
+ifaceImports if_hdl import_usages
+ = hPutCol if_hdl upp_uses (sortLt lt_imp_vers import_usages)
where
upp_uses (m, hif, mv, whats_imported)
- = hsep [pprModule m, pp_hif hif, int mv, ptext SLIT("::"),
+ = ptext SLIT("import ") <>
+ hsep [pprModule m, pp_hif hif, int mv, ptext SLIT("::"),
upp_import_versions whats_imported
] <> semi
ifaceInstanceModules if_hdl [] = return ()
ifaceInstanceModules if_hdl imods
- = hPutStr if_hdl "_instance_modules_\n" >>
- printForIface if_hdl (hsep (map ptext (sortLt (<) imods))) >>
+ = let sorted = sortLt (<) imods
+ lines = map (\m -> ptext SLIT("__instimport ") <> ptext m <>
+ ptext SLIT(" ;")) sorted
+ in
+ printForIface if_hdl (vcat lines) >>
hPutStr if_hdl "\n"
ifaceExports if_hdl [] = return ()
ifaceExports if_hdl avails
- = hPutStr if_hdl "_exports_\n" >>
- hPutCol if_hdl do_one_module (fmToList export_fm)
+ = hPutCol if_hdl do_one_module (fmToList export_fm)
where
-- Sort them into groups by module
export_fm :: FiniteMap Module [AvailInfo]
-- Print one module's worth of stuff
do_one_module :: (Module, [AvailInfo]) -> SDoc
do_one_module (mod_name, avails@(avail1:_))
- = hsep [pp_hif (ifaceFlavour (availName avail1)),
+ = ptext SLIT("__export ") <>
+ hsep [pp_hif (ifaceFlavour (availName avail1)),
pprModule mod_name,
hsep (map upp_avail (sortLt lt_avail avails))
] <> semi
ifaceFixities if_hdl [] = return ()
ifaceFixities if_hdl fixities
- = hPutStr if_hdl "_fixities_\n" >>
- hPutCol if_hdl upp_fixity fixities
+ = hPutCol if_hdl upp_fixity fixities
\end{code}
%************************************************************************
\begin{code}
ifaceInstances :: Handle -> Bag InstInfo -> IO IdSet -- The IdSet is the needed dfuns
ifaceInstances if_hdl inst_infos
- | null togo_insts = return emptyIdSet
- | otherwise = hPutStr if_hdl "_instances_\n" >>
- hPutCol if_hdl pp_inst (sortLt lt_inst togo_insts) >>
+ | null togo_insts = return emptyVarSet
+ | otherwise = hPutCol if_hdl pp_inst (sortLt lt_inst togo_insts) >>
return needed_ids
where
togo_insts = filter is_togo_inst (bagToList inst_infos)
- needed_ids = mkIdSet [dfun_id | InstInfo _ _ _ _ _ dfun_id _ _ _ <- togo_insts]
- is_togo_inst (InstInfo _ _ _ _ _ dfun_id _ _ _) = isLocallyDefined dfun_id
+ needed_ids = mkVarSet [dfun_id | InstInfo _ _ _ _ dfun_id _ _ _ <- togo_insts]
+ is_togo_inst (InstInfo _ _ _ _ dfun_id _ _ _) = isLocallyDefined dfun_id
-------
- lt_inst (InstInfo _ _ _ _ _ dfun_id1 _ _ _)
- (InstInfo _ _ _ _ _ dfun_id2 _ _ _)
+ lt_inst (InstInfo _ _ _ _ dfun_id1 _ _ _)
+ (InstInfo _ _ _ _ dfun_id2 _ _ _)
= getOccName dfun_id1 < getOccName dfun_id2
-- The dfuns are assigned names df1, df2, etc, in order of original textual
-- occurrence, and this makes as good a sort order as any
-------
- pp_inst (InstInfo clas tvs tys theta _ dfun_id _ _ _)
+ pp_inst (InstInfo clas tvs tys theta dfun_id _ _ _)
= let
forall_ty = mkSigmaTy tvs theta (mkDictTy clas tys)
renumbered_ty = nmbrGlobalType forall_ty
-> Maybe (SDoc, IdSet) -- The emitted stuff, plus a possibly-augmented set of needed Ids
ifaceId get_idinfo needed_ids is_rec id rhs
- | not (id `elementOfIdSet` needed_ids || -- Needed [no id in needed_ids has omitIfaceSigForId]
+ | not (id `elemVarSet` needed_ids || -- Needed [no id in needed_ids has omitIfaceSigForId]
(isExported id && not (omitIfaceSigForId id))) -- or exported and not to be omitted
= Nothing -- Well, that was easy!
ifaceId get_idinfo needed_ids is_rec id rhs
- = Just (hsep [sig_pretty, pp_double_semi, prag_pretty], new_needed_ids)
+ = Just (hsep [sig_pretty, prag_pretty, char ';'], new_needed_ids)
where
- pp_double_semi = ptext SLIT(";;")
idinfo = get_idinfo id
inline_pragma = inlinePragInfo idinfo
ty_pretty = pprType (nmbrGlobalType (idType id))
- sig_pretty = hcat [ppr (getOccName id), ptext SLIT(" _:_ "), ty_pretty]
+ sig_pretty = hcat [ppr (getOccName id), ptext SLIT(" :: "), ty_pretty]
prag_pretty
| opt_OmitInterfacePragmas = empty
- | otherwise = hsep [arity_pretty, strict_pretty, unfold_pretty,
- spec_pretty, pp_double_semi]
+ | otherwise = hsep [ptext SLIT("{-##"),
+ arity_pretty,
+ caf_pretty,
+ strict_pretty,
+ unfold_pretty,
+ spec_pretty,
+ ptext SLIT("##-}")]
------------ Arity --------------
arity_pretty = ppArityInfo (arityInfo idinfo)
+ ------------ Caf Info --------------
+ caf_pretty = ppCafInfo (cafInfo idinfo)
+
------------ Strictness --------------
strict_info = strictnessInfo idinfo
has_worker = workerExists strict_info
strict_pretty = ppStrictnessInfo strict_info <+> wrkr_pretty
wrkr_pretty | not has_worker = empty
- | null con_list = pprId work_id
- | otherwise = pprId work_id <+>
- braces (hsep (map (pprId) con_list))
+ | null con_list = ppr work_id
+ | otherwise = ppr work_id <+>
+ braces (hsep (map ppr con_list))
(work_id, wrapper_cons) = getWorkerIdAndCons id rhs
- con_list = idSetToList wrapper_cons
+ con_list = uniqSetToList wrapper_cons
------------ Unfolding --------------
- unfold_pretty | show_unfold = hsep [ptext unfold_herald, pprIfaceUnfolding rhs]
+ unfold_pretty | show_unfold = unfold_herald <+> pprIfaceUnfolding rhs
| otherwise = empty
- unfold_herald = case inline_pragma of
- IMustBeINLINEd -> SLIT("_U_")
- IWantToBeINLINEd -> SLIT("_U_")
- other -> SLIT("_u_")
-
show_unfold = not implicit_unfolding && -- Not unnecessary
- unfolding_is_ok -- Not dangerous
+ unfolding_needed -- Not dangerous
+
+ unfolding_needed = case inline_pragma of
+ IMustBeINLINEd -> definitely_ok_to_unfold
+ IWantToBeINLINEd -> definitely_ok_to_unfold
+ NoInlinePragInfo -> rhs_is_small
+ other -> False
implicit_unfolding = has_worker ||
bottomIsGuaranteed strict_info
- unfolding_is_ok
- = case inline_pragma of
- IMustBeINLINEd -> definitely_ok_to_unfold
- IWantToBeINLINEd -> definitely_ok_to_unfold
- IDontWantToBeINLINEd -> False
- IMustNotBeINLINEd -> False
- NoPragmaInfo -> case guidance of
- UnfoldNever -> False -- Too big
- other -> definitely_ok_to_unfold
+ unfold_herald = case inline_pragma of
+ NoInlinePragInfo -> ptext SLIT("__u")
+ other -> ppr inline_pragma
+
+ rhs_is_small = case calcUnfoldingGuidance opt_InterfaceUnfoldThreshold rhs of
+ UnfoldNever -> False -- Too big
+ other -> definitely_ok_to_unfold -- Small enough
definitely_ok_to_unfold = okToUnfoldInHiFile rhs
- guidance = calcUnfoldingGuidance opt_InterfaceUnfoldThreshold rhs
------------ Specialisations --------------
spec_list = specEnvToList (getIdSpecialisation id)
spec_pretty = hsep (map pp_spec spec_list)
- pp_spec (tyvars, tys, rhs) = hsep [ptext SLIT("_P_"),
+ pp_spec (tyvars, tys, rhs) = hsep [ptext SLIT("__P"),
if null tyvars then ptext SLIT("[ ]")
else brackets (interppSP tyvars),
-- The lexer interprets "[]" as a CONID. Sigh.
]
------------ Extra free Ids --------------
- new_needed_ids = (needed_ids `minusIdSet` unitIdSet id) `unionIdSets`
+ new_needed_ids = (needed_ids `minusVarSet` unitVarSet id) `unionVarSet`
extra_ids
- extra_ids | opt_OmitInterfacePragmas = emptyIdSet
- | otherwise = worker_ids `unionIdSets`
- unfold_ids `unionIdSets`
+ extra_ids | opt_OmitInterfacePragmas = emptyVarSet
+ | otherwise = worker_ids `unionVarSet`
+ unfold_ids `unionVarSet`
spec_ids
- worker_ids | has_worker = unitIdSet work_id
- | otherwise = emptyIdSet
+ worker_ids | has_worker = unitVarSet work_id
+ | otherwise = emptyVarSet
- spec_ids = foldr add emptyIdSet spec_list
+ spec_ids = foldr add emptyVarSet spec_list
where
- add (_, _, rhs) = unionIdSets (find_fvs rhs)
+ add (_, _, rhs) = unionVarSet (find_fvs rhs)
unfold_ids | show_unfold = find_fvs rhs
- | otherwise = emptyIdSet
+ | otherwise = emptyVarSet
find_fvs expr = free_vars
where
- free_vars = exprFreeVars interesting expr
- interesting id = isLocallyDefined id &&
+ free_vars = exprSomeFreeVars interesting expr
+ interesting id = isId id && isLocallyDefined id &&
not (omitIfaceSigForId id)
\end{code}
ifaceBinds :: Handle
-> IdSet -- These Ids are needed already
-> [Id] -- Ids used at code-gen time; they have better pragma info!
- -> [CoreBinding] -- In dependency order, later depend on earlier
+ -> [CoreBind] -- In dependency order, later depend on earlier
-> IO ()
ifaceBinds hdl needed_ids final_ids binds
pretties = go needed_ids (reverse binds) -- Reverse so that later things will
-- provoke earlier ones to be emitted
- go needed [] = if not (isEmptyIdSet needed) then
+ go needed [] = if not (isEmptyVarSet needed) then
pprTrace "ifaceBinds: free vars:"
- (sep (map ppr (idSetToList needed))) $
+ (sep (map ppr (varSetElems needed))) $
[]
else
[]
= pretties ++ go needed'' binds
where
(needed', pretties) = go_rec needed pairs
- needed'' = needed' `minusIdSet` mkIdSet (map fst pairs)
+ needed'' = needed' `minusVarSet` mkVarSet (map fst pairs)
-- Later ones may spuriously cause earlier ones to be "needed" again
go_rec :: IdSet -> [(Id,CoreExpr)] -> (IdSet, [SDoc])
keyword | isNewTyCon tycon = SLIT("newtype")
| otherwise = SLIT("data")
+ tyvars = tyConTyVars tycon
+
ppr_con data_con
| null field_labels
- = hsep [ ppr name,
+ = ASSERT( tycon == tycon1 && tyvars == tyvars1 )
+ hsep [ ppr_ex ex_tyvars ex_theta,
+ ppr name,
hsep (map ppr_arg_ty (strict_marks `zip` arg_tys))
]
| otherwise
- = hsep [ ppr name,
+ = hsep [ ppr_ex ex_tyvars ex_theta,
+ ppr name,
braces $ hsep $ punctuate comma (map ppr_field (strict_marks `zip` field_labels))
]
where
+ (tyvars1, theta1, ex_tyvars, ex_theta, arg_tys, tycon1) = dataConSig data_con
field_labels = dataConFieldLabels data_con
- arg_tys = dataConRawArgTys data_con
strict_marks = dataConStrictMarks data_con
name = getName data_con
+ ppr_ex [] ex_theta = ASSERT( null ex_theta ) empty
+ ppr_ex ex_tvs ex_theta = ptext SLIT("__forall") <+> brackets (pprTyVarBndrs ex_tvs)
+ <+> pprIfaceTheta ex_theta <+> ptext SLIT("=>")
+
ppr_arg_ty (strict_mark, ty) = ppr_strict_mark strict_mark <> pprParendType ty
ppr_strict_mark NotMarkedStrict = empty
(sel_tyvars, _, op_ty) = splitSigmaTy (idType sel_id)
ppr_decl_context :: ThetaType -> SDoc
-ppr_decl_context [] = empty
-ppr_decl_context theta
- = braces (hsep (punctuate comma (map (ppr_dict) theta)))
- <>
- ptext SLIT(" =>")
- where
- ppr_dict (clas,tys) = ppr clas <+> hsep (map pprParendType tys)
+ppr_decl_context [] = empty
+ppr_decl_context theta = pprIfaceTheta theta <+> ptext SLIT(" =>")
+
+pprIfaceTheta :: ThetaType -> SDoc -- Use braces rather than parens in interface files
+pprIfaceTheta theta = braces (hsep (punctuate comma [pprConstraint c tys | (c,tys) <- theta]))
\end{code}
%************************************************************************
ns' = filter (/= name) ns
upp_export [] = empty
-upp_export names = parens (hsep (map (upp_occname . getOccName) names))
+upp_export names = braces (hsep (map (upp_occname . getOccName) names))
upp_fixity (occ, fixity) = hcat [ppr fixity, space, upp_occname occ, semi]
projects / ghc-hetmet.git / blobdiff