import HscTypes ( VersionInfo(..), ModIface(..), ModDetails(..),
ModuleLocation(..), GhciMode(..),
IfaceDecls, mkIfaceDecls, dcl_tycl, dcl_rules, dcl_insts,
- TyThing(..), DFunId, Avails,
+ TyThing(..), DFunId, Avails, TypeEnv,
WhatsImported(..), GenAvailInfo(..),
ImportVersion, AvailInfo, Deprecations(..),
lookupVersion, typeEnvIds
)
import DataCon ( dataConId, dataConSig, dataConFieldLabels, dataConStrictMarks )
import IdInfo -- Lots
-import CoreSyn ( CoreRule(..) )
+import Var ( Var )
+import CoreSyn ( CoreRule(..), IdCoreRule )
import CoreFVs ( ruleLhsFreeNames )
import CoreUnfold ( neverUnfold, unfoldingTemplate )
import PprCore ( pprIdCoreRule )
import Util ( sortLt )
import ErrUtils ( dumpIfSet_dyn )
-import Monad ( when )
+import Monad ( when, mplus )
+import Maybe ( maybeToList )
import IO ( IOMode(..), openFile, hClose )
\end{code}
; return final_iface }
where
- must_write_hi_file Nothing = False
- must_write_hi_file (Just diffs) = ghci_mode /= Interactive
+ must_write_hi_file Nothing = False
+ must_write_hi_file (Just _diffs) = ghci_mode /= Interactive
-- We must write a new .hi file if there are some changes
-- and we're not in interactive mode
-- maybe_diffs = 'Nothing' means that even the usages havn't changed,
rule_dcls = map ifaceRule (md_rules new_details)
orphan_mod = isOrphanModule (mi_module new_iface) new_details
+write_diffs :: DynFlags -> ModIface -> Maybe SDoc -> IO ()
write_diffs dflags new_iface Nothing
= do when (dopt Opt_D_dump_hi_diffs dflags) (printDump (text "INTERFACE UNCHANGED"))
dumpIfSet_dyn dflags Opt_D_dump_hi "UNCHANGED FINAL INTERFACE" (pprIface new_iface)
\end{code}
\begin{code}
+isOrphanModule :: Module -> ModDetails -> Bool
isOrphanModule this_mod (ModDetails {md_insts = insts, md_rules = rules})
= any orphan_inst insts || any orphan_rule rules
where
tcdLoc = noSrcLoc }
| isForeignTyCon tycon
- = ForeignType { tcdName = getName tycon,
- tcdFoType = DNType, -- The only case at present
- tcdLoc = noSrcLoc }
+ = ForeignType { tcdName = getName tycon,
+ tcdExtName = Nothing,
+ tcdFoType = DNType, -- The only case at present
+ tcdLoc = noSrcLoc }
| isPrimTyCon tycon
-- needed in GHCi for ':info Int#', for example
caf_info = cgCafInfo cg_info
hs_idinfo | opt_OmitInterfacePragmas = []
- | otherwise = arity_hsinfo ++ caf_hsinfo ++
- strict_hsinfo ++ wrkr_hsinfo ++ unfold_hsinfo
+ | otherwise = maybeToList $
+ arity_hsinfo `mplus`
+ caf_hsinfo `mplus`
+ strict_hsinfo `mplus`
+ wrkr_hsinfo `mplus`
+ unfold_hsinfo
------------ Arity --------------
- arity_hsinfo | arity_info == 0 = []
- | otherwise = [HsArity arity_info]
+ arity_hsinfo | arity_info == 0 = Nothing
+ | otherwise = Just (HsArity arity_info)
------------ Caf Info --------------
caf_hsinfo = case caf_info of
- NoCafRefs -> [HsNoCafRefs]
- otherwise -> []
+ NoCafRefs -> Just HsNoCafRefs
+ _other -> Nothing
------------ Strictness --------------
-- No point in explicitly exporting TopSig
strict_hsinfo = case newStrictnessInfo id_info of
- Just sig | not (isTopSig sig) -> [HsStrictness sig]
- other -> []
+ Just sig | not (isTopSig sig) -> Just (HsStrictness sig)
+ _other -> Nothing
------------ Worker --------------
work_info = workerInfo id_info
has_worker = case work_info of { HasWorker _ _ -> True; other -> False }
wrkr_hsinfo = case work_info of
HasWorker work_id wrap_arity ->
- [HsWorker (getName work_id) wrap_arity]
- NoWorker -> []
+ Just (HsWorker (getName work_id) wrap_arity)
+ NoWorker -> Nothing
------------ Unfolding --------------
-- The unfolding is redundant if there is a worker
inline_prag = inlinePragInfo id_info
rhs = unfoldingTemplate unfold_info
unfold_hsinfo | neverUnfold unfold_info
- || has_worker = []
- | otherwise = [HsUnfold inline_prag (toUfExpr rhs)]
+ || has_worker = Nothing
+ | otherwise = Just (HsUnfold inline_prag (toUfExpr rhs))
\end{code}
\begin{code}
-- and this instance decl wouldn't get imported into a module
-- that mentioned T but not Tibble.
+ifaceRule :: IdCoreRule -> RuleDecl Name pat
ifaceRule (id, BuiltinRule _ _)
= pprTrace "toHsRule: builtin" (ppr id) (bogusIfaceRule id)
= IfaceRule name act (map toUfBndr bndrs) (getName id)
(map toUfExpr args) (toUfExpr rhs) noSrcLoc
+bogusIfaceRule :: (NamedThing a) => a -> RuleDecl Name pat
bogusIfaceRule id
= IfaceRule SLIT("bogus") NeverActive [] (getName id) [] (UfVar (getName id)) noSrcLoc
\end{code}
, dump_insts dfun_ids
, dump_rules rules]
+dump_types :: [Var] -> TypeEnv -> SDoc
dump_types dfun_ids type_env
= text "TYPE SIGNATURES" $$ nest 4 (dump_sigs ids)
where
-- that the type checker has invented. User-defined things have
-- Global names.
+dump_insts :: [Var] -> SDoc
dump_insts [] = empty
dump_insts dfun_ids = text "INSTANCES" $$ nest 4 (dump_sigs dfun_ids)
+dump_sigs :: [Var] -> SDoc
dump_sigs ids
-- Print type signatures
-- Convert to HsType so that we get source-language style printing
lt_sig (n1,_) (n2,_) = n1 < n2
ppr_sig (n,t) = ppr n <+> dcolon <+> ppr t
+dump_rules :: [IdCoreRule] -> SDoc
dump_rules [] = empty
dump_rules rs = vcat [ptext SLIT("{-# RULES"),
nest 4 (vcat (map pprIdCoreRule rs)),
where
pp_avail :: AvailInfo -> SDoc
pp_avail (Avail name) = pprOcc name
- pp_avail (AvailTC n []) = empty
+ pp_avail (AvailTC _ []) = empty
pp_avail (AvailTC n (n':ns)) | n==n' = pprOcc n <> pp_export ns
| otherwise = pprOcc n <> char '|' <> pp_export (n':ns)
\end{code}
\begin{code}
+pprIfaceDecls :: NameEnv Int -> IfaceDecls -> SDoc
pprIfaceDecls version_map decls
= vcat [ vcat [ppr i <+> semi | i <- dcl_insts decls]
, vcat (map ppr_decl (dcl_tycl decls))
\end{code}
\begin{code}
+pprFixities :: (Outputable a)
+ => NameEnv a
+ -> [TyClDecl Name pat]
+ -> SDoc
pprFixities fixity_map decls
= hsep [ ppr fix <+> ppr n
| d <- decls,
-- Disgusting to print these two together, but that's
-- the way the interface parser currently expects them.
+pprRulesAndDeprecs :: (Outputable a) => [a] -> Deprecations -> SDoc
pprRulesAndDeprecs [] NoDeprecs = empty
pprRulesAndDeprecs rules deprecs
= ptext SLIT("{-##") <+> (pp_rules rules $$ pp_deprecs deprecs) <+> ptext SLIT("##-}")
DeprecAll txt -> doubleQuotes (ptext txt)
DeprecSome env -> ppr_deprec_env env
+ppr_deprec_env :: NameEnv (Name, FAST_STRING) -> SDoc
ppr_deprec_env env = vcat (punctuate semi (map pp_deprec (nameEnvElts env)))
where
pp_deprec (name, txt) = pprOcc name <+> doubleQuotes (ptext txt)
projects / ghc-hetmet.git / commitdiff