X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fiface%2FIfaceSyn.lhs;h=0d649fb6138730c919496fda15b8929624704678;hp=27021815f733a50c10c06b6f17721ccfe9798937;hb=e8a591c1a3dbdeccec2dd2aacccd7435004b0d51;hpb=872a4a0fd2a99ea96bee36f5398e87002659e014 diff --git a/compiler/iface/IfaceSyn.lhs b/compiler/iface/IfaceSyn.lhs index 2702181..0d649fb 100644 --- a/compiler/iface/IfaceSyn.lhs +++ b/compiler/iface/IfaceSyn.lhs @@ -22,12 +22,9 @@ module IfaceSyn ( -- Misc visibleIfConDecls, - -- Converting things to IfaceSyn - tyThingToIfaceDecl, instanceToIfaceInst, coreRuleToIfaceRule, - -- Equality IfaceEq(..), (&&&), bool, eqListBy, eqMaybeBy, - eqIfDecl, eqIfInst, eqIfRule, + eqIfDecl, eqIfInst, eqIfRule, checkBootDecl, -- Pretty printing pprIfaceExpr, pprIfaceDecl, pprIfaceDeclHead @@ -38,34 +35,18 @@ module IfaceSyn ( import CoreSyn import IfaceType -import FunDeps ( pprFundeps ) import NewDemand ( StrictSig, pprIfaceStrictSig ) import TcType ( deNoteType ) -import Type ( TyThing(..), splitForAllTys, funResultTy ) -import InstEnv ( Instance(..), OverlapFlag ) -import Id ( Id, idName, idType, idInfo, idArity, isDataConWorkId_maybe, isFCallId_maybe ) -import NewDemand ( isTopSig ) -import IdInfo ( IdInfo, CafInfo(..), WorkerInfo(..), - arityInfo, cafInfo, newStrictnessInfo, - workerInfo, unfoldingInfo, inlinePragInfo ) -import TyCon ( TyCon, ArgVrcs, AlgTyConRhs(..), isRecursiveTyCon, isForeignTyCon, - isSynTyCon, isAlgTyCon, isPrimTyCon, isFunTyCon, - isTupleTyCon, tupleTyConBoxity, tyConStupidTheta, - tyConHasGenerics, tyConArgVrcs, synTyConRhs, - tyConArity, tyConTyVars, algTyConRhs, tyConExtName ) -import DataCon ( dataConName, dataConSig, dataConFieldLabels, dataConStrictMarks, - dataConTyCon, dataConIsInfix, isVanillaDataCon ) -import Class ( FunDep, DefMeth, classExtraBigSig, classTyCon ) -import OccName ( OccName, OccEnv, emptyOccEnv, - lookupOccEnv, extendOccEnv, parenSymOcc, +import Class ( FunDep, DefMeth, pprFundeps ) +import OccName ( OccName, parenSymOcc, occNameFS, OccSet, unionOccSets, unitOccSet ) +import UniqFM ( UniqFM, emptyUFM, addToUFM, lookupUFM ) import Name ( Name, NamedThing(..), nameOccName, isExternalName ) import CostCentre ( CostCentre, pprCostCentreCore ) import Literal ( Literal ) import ForeignCall ( ForeignCall ) -import TysPrim ( alphaTyVars ) -import BasicTypes ( Arity, Activation(..), StrictnessMark, - RecFlag(..), boolToRecFlag, Boxity(..), +import BasicTypes ( Arity, Activation(..), StrictnessMark, OverlapFlag, + RecFlag(..), Boxity(..), isAlwaysActive, tupleParens ) import Outputable import FastString @@ -89,30 +70,31 @@ data IfaceDecl ifType :: IfaceType, ifIdInfo :: IfaceIdInfo } - | IfaceData { ifName :: OccName, -- Type constructor - ifTyVars :: [IfaceTvBndr], -- Type variables - ifCtxt :: IfaceContext, -- The "stupid theta" - ifCons :: IfaceConDecls, -- Includes new/data info - ifRec :: RecFlag, -- Recursive or not? - ifVrcs :: ArgVrcs, - ifGeneric :: Bool -- True <=> generic converter functions available + | IfaceData { ifName :: OccName, -- Type constructor + ifTyVars :: [IfaceTvBndr], -- Type variables + ifCtxt :: IfaceContext, -- The "stupid theta" + ifCons :: IfaceConDecls, -- Includes new/data info + ifRec :: RecFlag, -- Recursive or not? + ifGadtSyntax :: Bool, -- True <=> declared using GADT syntax + ifGeneric :: Bool -- True <=> generic converter functions available } -- We need this for imported data decls, since the -- imported modules may have been compiled with -- different flags to the current compilation unit - | IfaceSyn { ifName :: OccName, -- Type constructor - ifTyVars :: [IfaceTvBndr], -- Type variables - ifVrcs :: ArgVrcs, - ifSynRhs :: IfaceType -- synonym expansion + | IfaceSyn { ifName :: OccName, -- Type constructor + ifTyVars :: [IfaceTvBndr], -- Type variables + ifOpenSyn :: Bool, -- Is an open family? + ifSynRhs :: IfaceType -- Type for an ordinary + -- synonym and kind for an + -- open family } | IfaceClass { ifCtxt :: IfaceContext, -- Context... ifName :: OccName, -- Name of the class ifTyVars :: [IfaceTvBndr], -- Type variables - ifFDs :: [FunDep OccName], -- Functional dependencies + ifFDs :: [FunDep FastString], -- Functional dependencies ifSigs :: [IfaceClassOp], -- Method signatures - ifRec :: RecFlag, -- Is newtype/datatype associated with the class recursive? - ifVrcs :: ArgVrcs -- ... and what are its argument variances ... + ifRec :: RecFlag -- Is newtype/datatype associated with the class recursive? } | IfaceForeign { ifName :: OccName, -- Needs expanding when we move beyond .NET @@ -125,27 +107,28 @@ data IfaceClassOp = IfaceClassOp OccName DefMeth IfaceType data IfaceConDecls = IfAbstractTyCon -- No info + | IfOpenDataTyCon -- Open data family + | IfOpenNewTyCon -- Open newtype family | IfDataTyCon [IfaceConDecl] -- data type decls | IfNewTyCon IfaceConDecl -- newtype decls visibleIfConDecls :: IfaceConDecls -> [IfaceConDecl] visibleIfConDecls IfAbstractTyCon = [] +visibleIfConDecls IfOpenDataTyCon = [] +visibleIfConDecls IfOpenNewTyCon = [] visibleIfConDecls (IfDataTyCon cs) = cs visibleIfConDecls (IfNewTyCon c) = [c] data IfaceConDecl - = IfVanillaCon { + = IfCon { ifConOcc :: OccName, -- Constructor name ifConInfix :: Bool, -- True <=> declared infix - ifConArgTys :: [IfaceType], -- Arg types - ifConStricts :: [StrictnessMark], -- Empty (meaning all lazy), or 1-1 corresp with arg types - ifConFields :: [OccName] } -- ...ditto... (field labels) - | IfGadtCon { - ifConOcc :: OccName, -- Constructor name - ifConTyVars :: [IfaceTvBndr], -- All tyvars + ifConUnivTvs :: [IfaceTvBndr], -- Universal tyvars + ifConExTvs :: [IfaceTvBndr], -- Existential tyvars + ifConEqSpec :: [(OccName,IfaceType)], -- Equality contraints ifConCtxt :: IfaceContext, -- Non-stupid context ifConArgTys :: [IfaceType], -- Arg types - ifConResTys :: [IfaceType], -- Result type args + ifConFields :: [OccName], -- ...ditto... (field labels) ifConStricts :: [StrictnessMark] } -- Empty (meaning all lazy), or 1-1 corresp with arg types data IfaceInst @@ -201,25 +184,25 @@ data IfaceInfoItem -------------------------------- data IfaceExpr - = IfaceLcl OccName + = IfaceLcl FastString | IfaceExt IfaceExtName | IfaceType IfaceType | IfaceTuple Boxity [IfaceExpr] -- Saturated; type arguments omitted | IfaceLam IfaceBndr IfaceExpr | IfaceApp IfaceExpr IfaceExpr - | IfaceCase IfaceExpr OccName IfaceType [IfaceAlt] + | IfaceCase IfaceExpr FastString IfaceType [IfaceAlt] | IfaceLet IfaceBinding IfaceExpr | IfaceNote IfaceNote IfaceExpr + | IfaceCast IfaceExpr IfaceCoercion | IfaceLit Literal | IfaceFCall ForeignCall IfaceType data IfaceNote = IfaceSCC CostCentre - | IfaceCoerce IfaceType | IfaceInlineMe | IfaceCoreNote String -type IfaceAlt = (IfaceConAlt, [OccName], IfaceExpr) - -- Note: OccName, not IfaceBndr (and same with the case binder) +type IfaceAlt = (IfaceConAlt, [FastString], IfaceExpr) + -- Note: FastString, not IfaceBndr (and same with the case binder) -- We reconstruct the kind/type of the thing from the context -- thus saving bulk in interface files @@ -253,30 +236,35 @@ pprIfaceDecl (IfaceId {ifName = var, ifType = ty, ifIdInfo = info}) pprIfaceDecl (IfaceForeign {ifName = tycon}) = hsep [ptext SLIT("foreign import type dotnet"), ppr tycon] -pprIfaceDecl (IfaceSyn {ifName = tycon, ifTyVars = tyvars, ifSynRhs = mono_ty, ifVrcs = vrcs}) +pprIfaceDecl (IfaceSyn {ifName = tycon, ifTyVars = tyvars, + ifOpenSyn = False, ifSynRhs = mono_ty}) = hang (ptext SLIT("type") <+> pprIfaceDeclHead [] tycon tyvars) - 4 (vcat [equals <+> ppr mono_ty, - pprVrcs vrcs]) + 4 (equals <+> ppr mono_ty) + +pprIfaceDecl (IfaceSyn {ifName = tycon, ifTyVars = tyvars, + ifOpenSyn = True, ifSynRhs = mono_ty}) + = hang (ptext SLIT("type family") <+> pprIfaceDeclHead [] tycon tyvars) + 4 (dcolon <+> ppr mono_ty) pprIfaceDecl (IfaceData {ifName = tycon, ifGeneric = gen, ifCtxt = context, ifTyVars = tyvars, ifCons = condecls, - ifRec = isrec, ifVrcs = vrcs}) + ifRec = isrec}) = hang (pp_nd <+> pprIfaceDeclHead context tycon tyvars) - 4 (vcat [pprVrcs vrcs, pprRec isrec, pprGen gen, pp_condecls tycon condecls]) + 4 (vcat [pprRec isrec, pprGen gen, pp_condecls tycon condecls]) where pp_nd = case condecls of IfAbstractTyCon -> ptext SLIT("data") + IfOpenDataTyCon -> ptext SLIT("data family") IfDataTyCon _ -> ptext SLIT("data") IfNewTyCon _ -> ptext SLIT("newtype") + IfOpenNewTyCon -> ptext SLIT("newtype family") pprIfaceDecl (IfaceClass {ifCtxt = context, ifName = clas, ifTyVars = tyvars, - ifFDs = fds, ifSigs = sigs, ifVrcs = vrcs, ifRec = isrec}) + ifFDs = fds, ifSigs = sigs, ifRec = isrec}) = hang (ptext SLIT("class") <+> pprIfaceDeclHead context clas tyvars <+> pprFundeps fds) - 4 (vcat [pprVrcs vrcs, - pprRec isrec, + 4 (vcat [pprRec isrec, sep (map ppr sigs)]) -pprVrcs vrcs = ptext SLIT("Variances") <+> ppr vrcs pprRec isrec = ptext SLIT("RecFlag") <+> ppr isrec pprGen True = ptext SLIT("Generics: yes") pprGen False = ptext SLIT("Generics: no") @@ -289,32 +277,32 @@ pprIfaceDeclHead context thing tyvars = hsep [pprIfaceContext context, parenSymOcc thing (ppr thing), pprIfaceTvBndrs tyvars] pp_condecls tc IfAbstractTyCon = ptext SLIT("{- abstract -}") +pp_condecls tc IfOpenNewTyCon = empty pp_condecls tc (IfNewTyCon c) = equals <+> pprIfaceConDecl tc c +pp_condecls tc IfOpenDataTyCon = empty pp_condecls tc (IfDataTyCon cs) = equals <+> sep (punctuate (ptext SLIT(" |")) - (map (pprIfaceConDecl tc) cs)) - -pprIfaceConDecl tc (IfVanillaCon { - ifConOcc = name, ifConInfix = is_infix, - ifConArgTys = arg_tys, - ifConStricts = strs, ifConFields = fields }) - = sep [ppr name <+> sep (map pprParendIfaceType arg_tys), - if is_infix then ptext SLIT("Infix") else empty, - if null strs then empty + (map (pprIfaceConDecl tc) cs)) + +pprIfaceConDecl tc + (IfCon { ifConOcc = name, ifConInfix = is_infix, + ifConUnivTvs = univ_tvs, ifConExTvs = ex_tvs, + ifConEqSpec = eq_spec, ifConCtxt = ctxt, ifConArgTys = arg_tys, + ifConStricts = strs, ifConFields = fields }) + = sep [main_payload, + if is_infix then ptext SLIT("Infix") else empty, + if null strs then empty else nest 4 (ptext SLIT("Stricts:") <+> hsep (map ppr strs)), - if null fields then empty + if null fields then empty else nest 4 (ptext SLIT("Fields:") <+> hsep (map ppr fields))] - -pprIfaceConDecl tc (IfGadtCon { - ifConOcc = name, - ifConTyVars = tvs, ifConCtxt = ctxt, - ifConArgTys = arg_tys, ifConResTys = res_tys, - ifConStricts = strs }) - = sep [ppr name <+> dcolon <+> pprIfaceForAllPart tvs ctxt (ppr con_tau), - if null strs then empty - else nest 4 (ptext SLIT("Stricts:") <+> hsep (map ppr strs))] - where - con_tau = foldr1 IfaceFunTy (arg_tys ++ [tc_app]) - tc_app = IfaceTyConApp (IfaceTc (LocalTop tc)) res_tys + where + main_payload = ppr name <+> dcolon <+> + pprIfaceForAllPart (univ_tvs ++ ex_tvs) (eq_ctxt ++ ctxt) (ppr con_tau) + + eq_ctxt = [(IfaceEqPred (IfaceTyVar (occNameFS tv)) ty) + | (tv,ty) <- eq_spec] + con_tau = foldr1 IfaceFunTy (arg_tys ++ [tc_app]) + tc_app = IfaceTyConApp (IfaceTc (LocalTop tc)) + [IfaceTyVar tv | (tv,_) <- univ_tvs] -- Gruesome, but jsut for debug print instance Outputable IfaceRule where @@ -379,6 +367,8 @@ pprIfaceExpr add_par (IfaceCase scrut bndr ty alts) <+> ppr bndr <+> char '{', nest 2 (sep (map ppr_alt alts)) <+> char '}']) +pprIfaceExpr add_par (IfaceCast expr co) = add_par (ptext SLIT("cast") <+> ppr expr <+> ppr co) + pprIfaceExpr add_par (IfaceLet (IfaceNonRec b rhs) body) = add_par (sep [ptext SLIT("let {"), nest 2 (ppr_bind (b, rhs)), @@ -409,7 +399,6 @@ pprIfaceApp fun args = sep (pprIfaceExpr parens fun : args) ------------------ instance Outputable IfaceNote where ppr (IfaceSCC cc) = pprCostCentreCore cc - ppr (IfaceCoerce ty) = ptext SLIT("__coerce") <+> pprParendIfaceType ty ppr IfaceInlineMe = ptext SLIT("__inline_me") ppr (IfaceCoreNote s) = ptext SLIT("__core_note") <+> pprHsString (mkFastString s) @@ -437,280 +426,6 @@ ppr_hs_info (HsWorker w a) = ptext SLIT("Worker:") <+> ppr w <+> int a %************************************************************************ %* * - Converting things to their Iface equivalents -%* * -%************************************************************************ - - -\begin{code} -tyThingToIfaceDecl :: (Name -> IfaceExtName) -> TyThing -> IfaceDecl --- Assumption: the thing is already tidied, so that locally-bound names --- (lambdas, for-alls) already have non-clashing OccNames --- Reason: Iface stuff uses OccNames, and the conversion here does --- not do tidying on the way -tyThingToIfaceDecl ext (AnId id) - = IfaceId { ifName = getOccName id, - ifType = toIfaceType ext (idType id), - ifIdInfo = info } - where - info = case toIfaceIdInfo ext (idInfo id) of - [] -> NoInfo - items -> HasInfo items - -tyThingToIfaceDecl ext (AClass clas) - = IfaceClass { ifCtxt = toIfaceContext ext sc_theta, - ifName = getOccName clas, - ifTyVars = toIfaceTvBndrs clas_tyvars, - ifFDs = map toIfaceFD clas_fds, - ifSigs = map toIfaceClassOp op_stuff, - ifRec = boolToRecFlag (isRecursiveTyCon tycon), - ifVrcs = tyConArgVrcs tycon } - where - (clas_tyvars, clas_fds, sc_theta, _, op_stuff) = classExtraBigSig clas - tycon = classTyCon clas - - toIfaceClassOp (sel_id, def_meth) - = ASSERT(sel_tyvars == clas_tyvars) - IfaceClassOp (getOccName sel_id) def_meth (toIfaceType ext op_ty) - where - -- Be careful when splitting the type, because of things - -- like class Foo a where - -- op :: (?x :: String) => a -> a - -- and class Baz a where - -- op :: (Ord a) => a -> a - (sel_tyvars, rho_ty) = splitForAllTys (idType sel_id) - op_ty = funResultTy rho_ty - - toIfaceFD (tvs1, tvs2) = (map getOccName tvs1, map getOccName tvs2) - -tyThingToIfaceDecl ext (ATyCon tycon) - | isSynTyCon tycon - = IfaceSyn { ifName = getOccName tycon, - ifTyVars = toIfaceTvBndrs tyvars, - ifVrcs = tyConArgVrcs tycon, - ifSynRhs = toIfaceType ext syn_ty } - - | isAlgTyCon tycon - = IfaceData { ifName = getOccName tycon, - ifTyVars = toIfaceTvBndrs tyvars, - ifCtxt = toIfaceContext ext (tyConStupidTheta tycon), - ifCons = ifaceConDecls (algTyConRhs tycon), - ifRec = boolToRecFlag (isRecursiveTyCon tycon), - ifVrcs = tyConArgVrcs tycon, - ifGeneric = tyConHasGenerics tycon } - - | isForeignTyCon tycon - = IfaceForeign { ifName = getOccName tycon, - ifExtName = tyConExtName tycon } - - | isPrimTyCon tycon || isFunTyCon tycon - -- Needed in GHCi for ':info Int#', for example - = IfaceData { ifName = getOccName tycon, - ifTyVars = toIfaceTvBndrs (take (tyConArity tycon) alphaTyVars), - ifCtxt = [], - ifCons = IfAbstractTyCon, - ifGeneric = False, - ifRec = NonRecursive, - ifVrcs = tyConArgVrcs tycon } - - | otherwise = pprPanic "toIfaceDecl" (ppr tycon) - where - tyvars = tyConTyVars tycon - syn_ty = synTyConRhs tycon - - ifaceConDecls (NewTyCon { data_con = con }) = IfNewTyCon (ifaceConDecl con) - ifaceConDecls (DataTyCon { data_cons = cons }) = IfDataTyCon (map ifaceConDecl cons) - ifaceConDecls AbstractTyCon = IfAbstractTyCon - -- The last case happens when a TyCon has been trimmed during tidying - -- Furthermore, tyThingToIfaceDecl is also used - -- in TcRnDriver for GHCi, when browsing a module, in which case the - -- AbstractTyCon case is perfectly sensible. - - ifaceConDecl data_con - | isVanillaDataCon data_con - = IfVanillaCon {ifConOcc = getOccName (dataConName data_con), - ifConInfix = dataConIsInfix data_con, - ifConArgTys = map (toIfaceType ext) arg_tys, - ifConStricts = strict_marks, - ifConFields = map getOccName field_labels } - | otherwise - = IfGadtCon { ifConOcc = getOccName (dataConName data_con), - ifConTyVars = toIfaceTvBndrs tyvars, - ifConCtxt = toIfaceContext ext theta, - ifConArgTys = map (toIfaceType ext) arg_tys, - ifConResTys = map (toIfaceType ext) res_tys, - ifConStricts = strict_marks } - where - (tyvars, theta, arg_tys, _, res_tys) = dataConSig data_con - field_labels = dataConFieldLabels data_con - strict_marks = dataConStrictMarks data_con - -tyThingToIfaceDecl ext (ADataCon dc) - = pprPanic "toIfaceDecl" (ppr dc) -- Should be trimmed out earlier - - --------------------------- -instanceToIfaceInst :: (Name -> IfaceExtName) -> Instance -> IfaceInst -instanceToIfaceInst ext_lhs ispec@(Instance { is_dfun = dfun_id, is_flag = oflag, - is_cls = cls, is_tcs = mb_tcs, - is_orph = orph }) - = IfaceInst { ifDFun = getOccName dfun_id, - ifOFlag = oflag, - ifInstCls = ext_lhs cls, - ifInstTys = map do_rough mb_tcs, - ifInstOrph = orph } - where - do_rough Nothing = Nothing - do_rough (Just n) = Just (toIfaceTyCon_name ext_lhs n) - --------------------------- -toIfaceIdInfo :: (Name -> IfaceExtName) -> IdInfo -> [IfaceInfoItem] -toIfaceIdInfo ext id_info - = catMaybes [arity_hsinfo, caf_hsinfo, strict_hsinfo, - inline_hsinfo, wrkr_hsinfo, unfold_hsinfo] - where - ------------ Arity -------------- - arity_info = arityInfo id_info - arity_hsinfo | arity_info == 0 = Nothing - | otherwise = Just (HsArity arity_info) - - ------------ Caf Info -------------- - caf_info = cafInfo id_info - caf_hsinfo = case caf_info of - NoCafRefs -> Just HsNoCafRefs - _other -> Nothing - - ------------ Strictness -------------- - -- No point in explicitly exporting TopSig - strict_hsinfo = case newStrictnessInfo id_info of - 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 -> - Just (HsWorker (ext (idName work_id)) wrap_arity) - NoWorker -> Nothing - - ------------ Unfolding -------------- - -- The unfolding is redundant if there is a worker - unfold_info = unfoldingInfo id_info - rhs = unfoldingTemplate unfold_info - no_unfolding = neverUnfold unfold_info - -- The CoreTidy phase retains unfolding info iff - -- we want to expose the unfolding, taking into account - -- unconditional NOINLINE, etc. See TidyPgm.addExternal - unfold_hsinfo | no_unfolding = Nothing - | has_worker = Nothing -- Unfolding is implicit - | otherwise = Just (HsUnfold (toIfaceExpr ext rhs)) - - ------------ Inline prag -------------- - inline_prag = inlinePragInfo id_info - inline_hsinfo | isAlwaysActive inline_prag = Nothing - | no_unfolding && not has_worker = Nothing - -- If the iface file give no unfolding info, we - -- don't need to say when inlining is OK! - | otherwise = Just (HsInline inline_prag) - --------------------------- -coreRuleToIfaceRule :: (Name -> IfaceExtName) -- For the LHS names - -> (Name -> IfaceExtName) -- For the RHS names - -> CoreRule -> IfaceRule -coreRuleToIfaceRule ext_lhs ext_rhs (BuiltinRule { ru_fn = fn}) - = pprTrace "toHsRule: builtin" (ppr fn) $ - bogusIfaceRule (mkIfaceExtName fn) - -coreRuleToIfaceRule ext_lhs ext_rhs - (Rule { ru_name = name, ru_fn = fn, ru_act = act, ru_bndrs = bndrs, - ru_args = args, ru_rhs = rhs, ru_orph = orph }) - = IfaceRule { ifRuleName = name, ifActivation = act, - ifRuleBndrs = map (toIfaceBndr ext_lhs) bndrs, - ifRuleHead = ext_lhs fn, - ifRuleArgs = map do_arg args, - ifRuleRhs = toIfaceExpr ext_rhs rhs, - ifRuleOrph = orph } - where - -- For type args we must remove synonyms from the outermost - -- level. Reason: so that when we read it back in we'll - -- construct the same ru_rough field as we have right now; - -- see tcIfaceRule - do_arg (Type ty) = IfaceType (toIfaceType ext_lhs (deNoteType ty)) - do_arg arg = toIfaceExpr ext_lhs arg - -bogusIfaceRule :: IfaceExtName -> IfaceRule -bogusIfaceRule id_name - = IfaceRule { ifRuleName = FSLIT("bogus"), ifActivation = NeverActive, - ifRuleBndrs = [], ifRuleHead = id_name, ifRuleArgs = [], - ifRuleRhs = IfaceExt id_name, ifRuleOrph = Nothing } - ---------------------- -toIfaceExpr :: (Name -> IfaceExtName) -> CoreExpr -> IfaceExpr -toIfaceExpr ext (Var v) = toIfaceVar ext v -toIfaceExpr ext (Lit l) = IfaceLit l -toIfaceExpr ext (Type ty) = IfaceType (toIfaceType ext ty) -toIfaceExpr ext (Lam x b) = IfaceLam (toIfaceBndr ext x) (toIfaceExpr ext b) -toIfaceExpr ext (App f a) = toIfaceApp ext f [a] -toIfaceExpr ext (Case s x ty as) = IfaceCase (toIfaceExpr ext s) (getOccName x) (toIfaceType ext ty) (map (toIfaceAlt ext) as) -toIfaceExpr ext (Let b e) = IfaceLet (toIfaceBind ext b) (toIfaceExpr ext e) -toIfaceExpr ext (Note n e) = IfaceNote (toIfaceNote ext n) (toIfaceExpr ext e) - ---------------------- -toIfaceNote ext (SCC cc) = IfaceSCC cc -toIfaceNote ext (Coerce t1 _) = IfaceCoerce (toIfaceType ext t1) -toIfaceNote ext InlineMe = IfaceInlineMe -toIfaceNote ext (CoreNote s) = IfaceCoreNote s - ---------------------- -toIfaceBind ext (NonRec b r) = IfaceNonRec (toIfaceIdBndr ext b) (toIfaceExpr ext r) -toIfaceBind ext (Rec prs) = IfaceRec [(toIfaceIdBndr ext b, toIfaceExpr ext r) | (b,r) <- prs] - ---------------------- -toIfaceAlt ext (c,bs,r) = (toIfaceCon c, map getOccName bs, toIfaceExpr ext r) - ---------------------- -toIfaceCon (DataAlt dc) | isTupleTyCon tc = IfaceTupleAlt (tupleTyConBoxity tc) - | otherwise = IfaceDataAlt (getOccName dc) - where - tc = dataConTyCon dc - -toIfaceCon (LitAlt l) = IfaceLitAlt l -toIfaceCon DEFAULT = IfaceDefault - ---------------------- -toIfaceApp ext (App f a) as = toIfaceApp ext f (a:as) -toIfaceApp ext (Var v) as - = case isDataConWorkId_maybe v of - -- We convert the *worker* for tuples into IfaceTuples - Just dc | isTupleTyCon tc && saturated - -> IfaceTuple (tupleTyConBoxity tc) tup_args - where - val_args = dropWhile isTypeArg as - saturated = val_args `lengthIs` idArity v - tup_args = map (toIfaceExpr ext) val_args - tc = dataConTyCon dc - - other -> mkIfaceApps ext (toIfaceVar ext v) as - -toIfaceApp ext e as = mkIfaceApps ext (toIfaceExpr ext e) as - -mkIfaceApps ext f as = foldl (\f a -> IfaceApp f (toIfaceExpr ext a)) f as - ---------------------- -toIfaceVar :: (Name -> IfaceExtName) -> Id -> IfaceExpr -toIfaceVar ext v - | Just fcall <- isFCallId_maybe v = IfaceFCall fcall (toIfaceType ext (idType v)) - -- Foreign calls have special syntax - | isExternalName name = IfaceExt (ext name) - | otherwise = IfaceLcl (nameOccName name) - where - name = idName v -\end{code} - - -%************************************************************************ -%* * Equality, for interface file version generaion only %* * %************************************************************************ @@ -732,6 +447,11 @@ bool :: Bool -> IfaceEq bool True = Equal bool False = NotEqual +toBool :: IfaceEq -> Bool +toBool Equal = True +toBool (EqBut _) = True +toBool NotEqual = False + zapEq :: IfaceEq -> IfaceEq -- Used to forget EqBut information zapEq (EqBut _) = Equal zapEq other = other @@ -757,6 +477,43 @@ eqIfExt n1 n2 = NotEqual \begin{code} --------------------- +checkBootDecl :: IfaceDecl -- The boot decl + -> IfaceDecl -- The real decl + -> Bool -- True <=> compatible +checkBootDecl (IfaceId s1 t1 _) (IfaceId s2 t2 _) + = ASSERT( s1==s2 ) toBool (t1 `eqIfType` t2) + +checkBootDecl d1@(IfaceForeign {}) d2@(IfaceForeign {}) + = ASSERT (ifName d1 == ifName d2 ) ifExtName d1 == ifExtName d2 + +checkBootDecl d1@(IfaceSyn {}) d2@(IfaceSyn {}) + = ASSERT( ifName d1 == ifName d2 ) + toBool $ eqWith (ifTyVars d1) (ifTyVars d2) $ \ env -> + eq_ifType env (ifSynRhs d1) (ifSynRhs d2) + +checkBootDecl d1@(IfaceData {}) d2@(IfaceData {}) +-- We don't check the recursion flags because the boot-one is +-- recursive, to be conservative, but the real one may not be. +-- I'm not happy with the way recursive flags are dealt with. + = ASSERT( ifName d1 == ifName d2 ) + toBool $ eqWith (ifTyVars d1) (ifTyVars d2) $ \ env -> + eq_ifContext env (ifCtxt d1) (ifCtxt d2) &&& + case ifCons d1 of + IfAbstractTyCon -> Equal + cons1 -> eq_hsCD env cons1 (ifCons d2) + +checkBootDecl d1@(IfaceClass {}) d2@(IfaceClass {}) + = ASSERT( ifName d1 == ifName d2 ) + toBool $ eqWith (ifTyVars d1) (ifTyVars d2) $ \ env -> + eqListBy (eq_hsFD env) (ifFDs d1) (ifFDs d2) &&& + case (ifCtxt d1, ifSigs d1) of + ([], []) -> Equal + (cxt1, sigs1) -> eq_ifContext env cxt1 (ifCtxt d2) &&& + eqListBy (eq_cls_sig env) sigs1 (ifSigs d2) + +checkBootDecl _ _ = False -- default case + +--------------------- eqIfDecl :: IfaceDecl -> IfaceDecl -> IfaceEq eqIfDecl (IfaceId s1 t1 i1) (IfaceId s2 t2 i2) = bool (s1 == s2) &&& (t1 `eqIfType` t2) &&& (i1 `eqIfIdInfo` i2) @@ -767,7 +524,7 @@ eqIfDecl d1@(IfaceForeign {}) d2@(IfaceForeign {}) eqIfDecl d1@(IfaceData {}) d2@(IfaceData {}) = bool (ifName d1 == ifName d2 && ifRec d1 == ifRec d2 && - ifVrcs d1 == ifVrcs d2 && + ifGadtSyntax d1 == ifGadtSyntax d2 && ifGeneric d1 == ifGeneric d2) &&& eqWith (ifTyVars d1) (ifTyVars d2) (\ env -> eq_ifContext env (ifCtxt d1) (ifCtxt d2) &&& @@ -785,8 +542,7 @@ eqIfDecl d1@(IfaceSyn {}) d2@(IfaceSyn {}) eqIfDecl d1@(IfaceClass {}) d2@(IfaceClass {}) = bool (ifName d1 == ifName d2 && - ifRec d1 == ifRec d2 && - ifVrcs d1 == ifVrcs d2) &&& + ifRec d1 == ifRec d2) &&& eqWith (ifTyVars d1) (ifTyVars d2) (\ env -> eq_ifContext env (ifCtxt d1) (ifCtxt d2) &&& eqListBy (eq_hsFD env) (ifFDs d1) (ifFDs d2) &&& @@ -817,24 +573,19 @@ eq_hsCD env (IfDataTyCon c1) (IfDataTyCon c2) eq_hsCD env (IfNewTyCon c1) (IfNewTyCon c2) = eq_ConDecl env c1 c2 eq_hsCD env IfAbstractTyCon IfAbstractTyCon = Equal +eq_hsCD env IfOpenDataTyCon IfOpenDataTyCon = Equal +eq_hsCD env IfOpenNewTyCon IfOpenNewTyCon = Equal eq_hsCD env d1 d2 = NotEqual -eq_ConDecl env c1@(IfVanillaCon {}) c2@(IfVanillaCon {}) +eq_ConDecl env c1 c2 = bool (ifConOcc c1 == ifConOcc c2 && ifConInfix c1 == ifConInfix c2 && ifConStricts c1 == ifConStricts c2 && ifConFields c1 == ifConFields c2) &&& - eq_ifTypes env (ifConArgTys c1) (ifConArgTys c2) - -eq_ConDecl env c1@(IfGadtCon {}) c2@(IfGadtCon {}) - = bool (ifConOcc c1 == ifConOcc c2 && - ifConStricts c1 == ifConStricts c2) &&& - eq_ifTvBndrs env (ifConTyVars c1) (ifConTyVars c2) (\ env -> + eq_ifTvBndrs env (ifConUnivTvs c1) (ifConUnivTvs c2) (\ env -> + eq_ifTvBndrs env (ifConExTvs c1) (ifConExTvs c2) (\ env -> eq_ifContext env (ifConCtxt c1) (ifConCtxt c2) &&& - eq_ifTypes env (ifConResTys c1) (ifConResTys c2) &&& - eq_ifTypes env (ifConArgTys c1) (ifConArgTys c2)) - -eq_ConDecl env c1 c2 = NotEqual + eq_ifTypes env (ifConArgTys c1) (ifConArgTys c2))) eq_hsFD env (ns1,ms1) (ns2,ms2) = eqListBy (eqIfOcc env) ns1 ns2 &&& eqListBy (eqIfOcc env) ms1 ms2 @@ -868,6 +619,7 @@ eq_ifaceExpr env (IfaceType ty1) (IfaceType ty2) = eq_ifType env ty1 ty2 eq_ifaceExpr env (IfaceTuple n1 as1) (IfaceTuple n2 as2) = bool (n1==n2) &&& eqListBy (eq_ifaceExpr env) as1 as2 eq_ifaceExpr env (IfaceLam b1 body1) (IfaceLam b2 body2) = eq_ifBndr env b1 b2 (\env -> eq_ifaceExpr env body1 body2) eq_ifaceExpr env (IfaceApp f1 a1) (IfaceApp f2 a2) = eq_ifaceExpr env f1 f2 &&& eq_ifaceExpr env a1 a2 +eq_ifaceExpr env (IfaceCast e1 co1) (IfaceCast e2 co2) = eq_ifaceExpr env e1 e2 &&& eq_ifType env co1 co2 eq_ifaceExpr env (IfaceNote n1 r1) (IfaceNote n2 r2) = eq_ifaceNote env n1 n2 &&& eq_ifaceExpr env r1 r2 eq_ifaceExpr env (IfaceCase s1 b1 ty1 as1) (IfaceCase s2 b2 ty2 as2) @@ -902,7 +654,6 @@ eq_ifaceConAlt _ _ = False ----------------- eq_ifaceNote :: EqEnv -> IfaceNote -> IfaceNote -> IfaceEq eq_ifaceNote env (IfaceSCC c1) (IfaceSCC c2) = bool (c1==c2) -eq_ifaceNote env (IfaceCoerce t1) (IfaceCoerce t2) = eq_ifType env t1 t2 eq_ifaceNote env IfaceInlineMe IfaceInlineMe = Equal eq_ifaceNote env (IfaceCoreNote s1) (IfaceCoreNote s2) = bool (s1==s2) eq_ifaceNote env _ _ = NotEqual @@ -949,24 +700,24 @@ eqIfTc _ _ = NotEqual \begin{code} ------------------------------------ -type EqEnv = OccEnv OccName -- Tracks the mapping from L-variables to R-variables +type EqEnv = UniqFM FastString -- Tracks the mapping from L-variables to R-variables -eqIfOcc :: EqEnv -> OccName -> OccName -> IfaceEq -eqIfOcc env n1 n2 = case lookupOccEnv env n1 of +eqIfOcc :: EqEnv -> FastString -> FastString -> IfaceEq +eqIfOcc env n1 n2 = case lookupUFM env n1 of Just n1 -> bool (n1 == n2) Nothing -> bool (n1 == n2) -extendEqEnv :: EqEnv -> OccName -> OccName -> EqEnv +extendEqEnv :: EqEnv -> FastString -> FastString -> EqEnv extendEqEnv env n1 n2 | n1 == n2 = env - | otherwise = extendOccEnv env n1 n2 + | otherwise = addToUFM env n1 n2 emptyEqEnv :: EqEnv -emptyEqEnv = emptyOccEnv +emptyEqEnv = emptyUFM ------------------------------------ type ExtEnv bndr = EqEnv -> bndr -> bndr -> (EqEnv -> IfaceEq) -> IfaceEq -eq_ifNakedBndr :: ExtEnv OccName +eq_ifNakedBndr :: ExtEnv FastString eq_ifBndr :: ExtEnv IfaceBndr eq_ifTvBndr :: ExtEnv IfaceTvBndr eq_ifIdBndr :: ExtEnv IfaceIdBndr @@ -977,13 +728,13 @@ eq_ifBndr env (IfaceIdBndr b1) (IfaceIdBndr b2) k = eq_ifIdBndr env b1 b2 k eq_ifBndr env (IfaceTvBndr b1) (IfaceTvBndr b2) k = eq_ifTvBndr env b1 b2 k eq_ifBndr _ _ _ _ = NotEqual -eq_ifTvBndr env (v1, k1) (v2, k2) k = bool (k1 == k2) &&& k (extendEqEnv env v1 v2) +eq_ifTvBndr env (v1, k1) (v2, k2) k = eq_ifType env k1 k2 &&& k (extendEqEnv env v1 v2) eq_ifIdBndr env (v1, t1) (v2, t2) k = eq_ifType env t1 t2 &&& k (extendEqEnv env v1 v2) eq_ifBndrs :: ExtEnv [IfaceBndr] eq_ifIdBndrs :: ExtEnv [IfaceIdBndr] eq_ifTvBndrs :: ExtEnv [IfaceTvBndr] -eq_ifNakedBndrs :: ExtEnv [OccName] +eq_ifNakedBndrs :: ExtEnv [FastString] eq_ifBndrs = eq_bndrs_with eq_ifBndr eq_ifIdBndrs = eq_bndrs_with eq_ifIdBndr eq_ifTvBndrs = eq_bndrs_with eq_ifTvBndr