diff options
Diffstat (limited to 'ghc/compiler/prelude/TysWiredIn.lhs')
| -rw-r--r-- | ghc/compiler/prelude/TysWiredIn.lhs | 281 |
1 files changed, 106 insertions, 175 deletions
diff --git a/ghc/compiler/prelude/TysWiredIn.lhs b/ghc/compiler/prelude/TysWiredIn.lhs index 2975922af8..4d8de984e3 100644 --- a/ghc/compiler/prelude/TysWiredIn.lhs +++ b/ghc/compiler/prelude/TysWiredIn.lhs @@ -11,35 +11,26 @@ types and operations.'' \begin{code} module TysWiredIn ( - wiredInTyCons, genericTyCons, - - boolTy, - boolTyCon, - charDataCon, - charTy, - charTyCon, - consDataCon, - doubleDataCon, - doubleTy, - doubleTyCon, - falseDataCon, falseDataConId, - floatDataCon, - floatTy, - floatTyCon, - - intDataCon, - intTy, - intTyCon, + wiredInTyCons, + + boolTy, boolTyCon, boolTyCon_RDR, boolTyConName, + trueDataCon, trueDataConId, true_RDR, + falseDataCon, falseDataConId, false_RDR, + + charTyCon, charDataCon, charTyCon_RDR, + charTy, stringTy, charTyConName, - integerTy, - integerTyCon, - smallIntegerDataCon, - largeIntegerDataCon, + + doubleTyCon, doubleDataCon, doubleTy, + + floatTyCon, floatDataCon, floatTy, - listTyCon, + intTyCon, intDataCon, intTyCon_RDR, intDataCon_RDR, intTyConName, + intTy, + listTyCon, nilDataCon, consDataCon, + listTyCon_RDR, consDataCon_RDR, listTyConName, mkListTy, - nilDataCon, -- tuples mkTupleTy, @@ -48,28 +39,18 @@ module TysWiredIn ( unboxedSingletonTyCon, unboxedSingletonDataCon, unboxedPairTyCon, unboxedPairDataCon, - -- Generics - genUnitTyCon, genUnitDataCon, - plusTyCon, inrDataCon, inlDataCon, - crossTyCon, crossDataCon, - - stringTy, - trueDataCon, trueDataConId, unitTy, voidTy, - wordDataCon, - wordTy, - wordTyCon, -- parallel arrays mkPArrTy, - parrTyCon, parrFakeCon, isPArrTyCon, isPArrFakeCon + parrTyCon, parrFakeCon, isPArrTyCon, isPArrFakeCon, + parrTyCon_RDR, parrTyConName ) where #include "HsVersions.h" -import {-# SOURCE #-} MkId( mkDataConWorkId ) -import {-# SOURCE #-} Generics( mkTyConGenInfo ) +import {-# SOURCE #-} MkId( mkDataConIds ) -- friends: import PrelNames @@ -77,30 +58,31 @@ import TysPrim -- others: import Constants ( mAX_TUPLE_SIZE ) -import Module ( mkBasePkgModule ) +import Module ( Module ) +import RdrName ( nameRdrName ) import Name ( Name, nameUnique, nameOccName, nameModule, mkWiredInName ) -import OccName ( mkOccFS, tcName, dataName, mkDataConWorkerOcc, mkGenOcc1, mkGenOcc2 ) +import OccName ( mkOccFS, tcName, dataName, mkTupleOcc, mkDataConWorkerOcc ) import DataCon ( DataCon, mkDataCon, dataConWorkId, dataConSourceArity ) import Var ( TyVar, tyVarKind ) import TyCon ( TyCon, AlgTyConFlavour(..), DataConDetails(..), tyConDataCons, mkTupleTyCon, mkAlgTyCon, tyConName ) -import BasicTypes ( Arity, RecFlag(..), Boxity(..), isBoxed ) +import BasicTypes ( Arity, RecFlag(..), Boxity(..), isBoxed, StrictnessMark(..) ) import Type ( Type, mkTyConTy, mkTyConApp, mkTyVarTy, mkTyVarTys, mkArrowKinds, liftedTypeKind, unliftedTypeKind, - ThetaType ) + ThetaType, TyThing(..) ) import Unique ( incrUnique, mkTupleTyConUnique, mkTupleDataConUnique, mkPArrDataConUnique ) import PrelNames import Array import FastString +import Outputable -alpha_tyvar = [alphaTyVar] -alpha_ty = [alphaTy] -alpha_beta_tyvars = [alphaTyVar, betaTyVar] +alpha_tyvar = [alphaTyVar] +alpha_ty = [alphaTy] \end{code} @@ -114,26 +96,65 @@ If you change which things are wired in, make sure you change their names in PrelNames, so they use wTcQual, wDataQual, etc \begin{code} -wiredInTyCons :: [TyCon] -wiredInTyCons = data_tycons ++ tuple_tycons ++ unboxed_tuple_tycons - -data_tycons = genericTyCons ++ - [ boolTyCon +wiredInTyCons :: [TyCon] -- Excludes tuples +wiredInTyCons = [ unitTyCon -- Not treated like other tuples, because + -- it's defined in GHC.Base, and there's only + -- one of it. We put it in wiredInTyCons so + -- that it'll pre-populate the name cache, so + -- the special case in lookupOrigNameCache + -- doesn't need to look out for it + , boolTyCon , charTyCon , doubleTyCon , floatTyCon , intTyCon - , integerTyCon , listTyCon , parrTyCon - , wordTyCon ] +\end{code} -genericTyCons :: [TyCon] -genericTyCons = [ plusTyCon, crossTyCon, genUnitTyCon ] - -tuple_tycons = unitTyCon : [tupleTyCon Boxed i | i <- [2..mAX_TUPLE_SIZE] ] -unboxed_tuple_tycons = [tupleTyCon Unboxed i | i <- [1..mAX_TUPLE_SIZE] ] +\begin{code} +mkWiredInTyConName :: Module -> FastString -> Unique -> TyCon -> Name +mkWiredInTyConName mod fs uniq tycon + = mkWiredInName mod (mkOccFS tcName fs) uniq + Nothing -- No parent object + (ATyCon tycon) -- Relevant TyCon + +mkWiredInDataConName :: Module -> FastString -> Unique -> DataCon -> Name -> Name +mkWiredInDataConName mod fs uniq datacon parent + = mkWiredInName mod (mkOccFS dataName fs) uniq + (Just parent) -- Name of parent TyCon + (ADataCon datacon) -- Relevant DataCon + +charTyConName = mkWiredInTyConName pREL_BASE FSLIT("Char") charTyConKey charTyCon +charDataConName = mkWiredInDataConName pREL_BASE FSLIT("C#") charDataConKey charDataCon charTyConName +intTyConName = mkWiredInTyConName pREL_BASE FSLIT("Int") intTyConKey intTyCon +intDataConName = mkWiredInDataConName pREL_BASE FSLIT("I#") intDataConKey intDataCon intTyConName + +boolTyConName = mkWiredInTyConName pREL_BASE FSLIT("Bool") boolTyConKey boolTyCon +falseDataConName = mkWiredInDataConName pREL_BASE FSLIT("False") falseDataConKey falseDataCon boolTyConName +trueDataConName = mkWiredInDataConName pREL_BASE FSLIT("True") trueDataConKey trueDataCon boolTyConName +listTyConName = mkWiredInTyConName pREL_BASE FSLIT("[]") listTyConKey listTyCon +nilDataConName = mkWiredInDataConName pREL_BASE FSLIT("[]") nilDataConKey nilDataCon listTyConName +consDataConName = mkWiredInDataConName pREL_BASE FSLIT(":") consDataConKey consDataCon listTyConName + +floatTyConName = mkWiredInTyConName pREL_FLOAT FSLIT("Float") floatTyConKey floatTyCon +floatDataConName = mkWiredInDataConName pREL_FLOAT FSLIT("F#") floatDataConKey floatDataCon floatTyConName +doubleTyConName = mkWiredInTyConName pREL_FLOAT FSLIT("Double") doubleTyConKey doubleTyCon +doubleDataConName = mkWiredInDataConName pREL_FLOAT FSLIT("D#") doubleDataConKey doubleDataCon doubleTyConName + +parrTyConName = mkWiredInTyConName pREL_PARR FSLIT("[::]") parrTyConKey parrTyCon +parrDataConName = mkWiredInDataConName pREL_PARR FSLIT("PArr") parrDataConKey parrDataCon parrTyConName + +boolTyCon_RDR = nameRdrName boolTyConName +false_RDR = nameRdrName falseDataConName +true_RDR = nameRdrName trueDataConName +intTyCon_RDR = nameRdrName intTyConName +charTyCon_RDR = nameRdrName charTyConName +intDataCon_RDR = nameRdrName intDataConName +listTyCon_RDR = nameRdrName listTyConName +consDataCon_RDR = nameRdrName consDataConName +parrTyCon_RDR = nameRdrName parrTyConName \end{code} @@ -144,39 +165,22 @@ unboxed_tuple_tycons = [tupleTyCon Unboxed i | i <- [1..mAX_TUPLE_SIZE] ] %************************************************************************ \begin{code} -pcNonRecDataTyCon = pcTyCon DataTyCon NonRecursive -pcRecDataTyCon = pcTyCon DataTyCon Recursive +pcNonRecDataTyCon = pcTyCon False NonRecursive +pcRecDataTyCon = pcTyCon False Recursive -pcTyCon new_or_data is_rec name tyvars argvrcs cons +pcTyCon is_enum is_rec name tyvars argvrcs cons = tycon where - tycon = mkAlgTyCon name kind + tycon = mkAlgTyCon name + (mkArrowKinds (map tyVarKind tyvars) liftedTypeKind) tyvars [] -- No context argvrcs (DataCons cons) [] -- No record selectors - new_or_data + (DataTyCon is_enum) is_rec - gen_info - - mod = nameModule name - kind = mkArrowKinds (map tyVarKind tyvars) liftedTypeKind - gen_info = mk_tc_gen_info mod (nameUnique name) name tycon - --- We generate names for the generic to/from Ids by incrementing --- the TyCon unique. So each Prelude tycon needs 3 slots, one --- for itself and two more for the generic Ids. -mk_tc_gen_info mod tc_uniq tc_name tycon - = mkTyConGenInfo tycon [name1, name2] - where - tc_occ_name = nameOccName tc_name - occ_name1 = mkGenOcc1 tc_occ_name - occ_name2 = mkGenOcc2 tc_occ_name - fn1_key = incrUnique tc_uniq - fn2_key = incrUnique fn1_key - name1 = mkWiredInName mod occ_name1 fn1_key - name2 = mkWiredInName mod occ_name2 fn2_key + True -- All the wired-in tycons have generics pcDataCon :: Name -> [TyVar] -> ThetaType -> [Type] -> TyCon -> DataCon -- The Name should be in the DataName name space; it's the name @@ -190,17 +194,19 @@ pcDataCon dc_name tyvars context arg_tys tycon = data_con where data_con = mkDataCon dc_name - [{- No strictness -}] + (map (const NotMarkedStrict) arg_tys) [{- No labelled fields -}] - tyvars context [] [] arg_tys tycon work_id - Nothing {- No wrapper for wired-in things - (they are too simple to need one) -} + tyvars context [] [] arg_tys tycon + (mkDataConIds bogus_wrap_name wrk_name data_con) mod = nameModule dc_name wrk_occ = mkDataConWorkerOcc (nameOccName dc_name) wrk_key = incrUnique (nameUnique dc_name) wrk_name = mkWiredInName mod wrk_occ wrk_key - work_id = mkDataConWorkId wrk_name data_con + (Just (tyConName tycon)) + (AnId (dataConWorkId data_con)) + bogus_wrap_name = pprPanic "Wired-in data wrapper id" (ppr dc_name) + -- Wired-in types are too simple to need wrappers \end{code} @@ -229,7 +235,9 @@ mk_tuple :: Boxity -> Int -> (TyCon,DataCon) mk_tuple boxity arity = (tycon, tuple_con) where tycon = mkTupleTyCon tc_name tc_kind arity tyvars tuple_con boxity gen_info - tc_name = mkWiredInName mod (mkOccFS tcName name_str) tc_uniq + mod = mkTupleModule boxity arity + tc_name = mkWiredInName mod (mkTupleOcc tcName boxity arity) tc_uniq + Nothing (ATyCon tycon) tc_kind = mkArrowKinds (map tyVarKind tyvars) res_kind res_kind | isBoxed boxity = liftedTypeKind | otherwise = unliftedTypeKind @@ -237,14 +245,14 @@ mk_tuple boxity arity = (tycon, tuple_con) tyvars | isBoxed boxity = take arity alphaTyVars | otherwise = take arity openAlphaTyVars - tuple_con = pcDataCon name tyvars [] tyvar_tys tycon + tuple_con = pcDataCon dc_name tyvars [] tyvar_tys tycon tyvar_tys = mkTyVarTys tyvars - (mod_name, name_str) = mkTupNameStr boxity arity - name = mkWiredInName mod (mkOccFS dataName name_str) dc_uniq + dc_name = mkWiredInName mod (mkTupleOcc dataName boxity arity) dc_uniq + (Just tc_name) (ADataCon tuple_con) tc_uniq = mkTupleTyConUnique boxity arity dc_uniq = mkTupleDataConUnique boxity arity - mod = mkBasePkgModule mod_name - gen_info = mk_tc_gen_info mod tc_uniq tc_name tycon + gen_info = True -- Tuples all have generics.. + -- hmm: that's a *lot* of code unitTyCon = tupleTyCon Boxed 0 unitDataCon = head (tyConDataCons unitTyCon) @@ -298,13 +306,6 @@ intDataCon = pcDataCon intDataConName [] [] [intPrimTy] intTyCon \end{code} \begin{code} -wordTy = mkTyConTy wordTyCon - -wordTyCon = pcNonRecDataTyCon wordTyConName [] [] [wordDataCon] -wordDataCon = pcDataCon wordDataConName [] [] [wordPrimTy] wordTyCon -\end{code} - -\begin{code} floatTy = mkTyConTy floatTyCon floatTyCon = pcNonRecDataTyCon floatTyConName [] [] [floatDataCon] @@ -321,27 +322,6 @@ doubleDataCon = pcDataCon doubleDataConName [] [] [doublePrimTy] doubleTyCon %************************************************************************ %* * -\subsection[TysWiredIn-Integer]{@Integer@ and its related ``pairing'' types} -%* * -%************************************************************************ - -@Integer@ and its pals are not really primitive. @Integer@ itself, first: -\begin{code} -integerTy :: Type -integerTy = mkTyConTy integerTyCon - -integerTyCon = pcNonRecDataTyCon integerTyConName - [] [] [smallIntegerDataCon, largeIntegerDataCon] - -smallIntegerDataCon = pcDataCon smallIntegerDataConName - [] [] [intPrimTy] integerTyCon -largeIntegerDataCon = pcDataCon largeIntegerDataConName - [] [] [intPrimTy, byteArrayPrimTy] integerTyCon -\end{code} - - -%************************************************************************ -%* * \subsection[TysWiredIn-Bool]{The @Bool@ type} %* * %************************************************************************ @@ -391,7 +371,7 @@ primitive counterpart. \begin{code} boolTy = mkTyConTy boolTyCon -boolTyCon = pcTyCon EnumTyCon NonRecursive boolTyConName +boolTyCon = pcTyCon True NonRecursive boolTyConName [] [] [falseDataCon, trueDataCon] falseDataCon = pcDataCon falseDataConName [] [] [] boolTyCon @@ -508,23 +488,7 @@ mkPArrTy ty = mkTyConApp parrTyCon [ty] -- `PrelPArr'. -- parrTyCon :: TyCon -parrTyCon = tycon - where - tycon = mkAlgTyCon - parrTyConName - kind - tyvars - [] -- No context - [(True, False)] - (DataCons [parrDataCon]) -- The constructor defined in `PrelPArr' - [] -- No record selectors - DataTyCon - NonRecursive - genInfo - tyvars = alpha_tyvar - mod = nameModule parrTyConName - kind = mkArrowKinds (map tyVarKind tyvars) liftedTypeKind - genInfo = mk_tc_gen_info mod (nameUnique parrTyConName) parrTyConName tycon +parrTyCon = pcNonRecDataTyCon parrTyConName alpha_tyvar [(True, False)] [parrDataCon] parrDataCon :: DataCon parrDataCon = pcDataCon @@ -562,14 +526,15 @@ parrFakeConArr = array (0, mAX_TUPLE_SIZE) [(i, mkPArrFakeCon i) -- build a fake parallel array constructor for the given arity -- mkPArrFakeCon :: Int -> DataCon -mkPArrFakeCon arity = pcDataCon name [tyvar] [] tyvarTys parrTyCon +mkPArrFakeCon arity = data_con where + data_con = pcDataCon name [tyvar] [] tyvarTys parrTyCon tyvar = head alphaTyVars tyvarTys = replicate arity $ mkTyVarTy tyvar nameStr = mkFastString ("MkPArr" ++ show arity) - name = mkWiredInName mod (mkOccFS dataName nameStr) uniq + name = mkWiredInName pREL_PARR (mkOccFS dataName nameStr) uniq + Nothing (ADataCon data_con) uniq = mkPArrDataConUnique arity - mod = mkBasePkgModule pREL_PARR_Name -- checks whether a data constructor is a fake constructor for parallel arrays -- @@ -577,37 +542,3 @@ isPArrFakeCon :: DataCon -> Bool isPArrFakeCon dcon = dcon == parrFakeCon (dataConSourceArity dcon) \end{code} -%************************************************************************ -%* * -\subsection{Wired In Type Constructors for Representation Types} -%* * -%************************************************************************ - -The following code defines the wired in datatypes cross, plus, unit -and c_of needed for the generic methods. - -Ok, so the basic story is that for each type constructor I need to -create 2 things - a TyCon and a DataCon and then we are basically -ok. There are going to be no arguments passed to these functions -because -well- there is nothing to pass to these functions. - -\begin{code} -crossTyCon :: TyCon -crossTyCon = pcNonRecDataTyCon crossTyConName alpha_beta_tyvars [] [crossDataCon] - -crossDataCon :: DataCon -crossDataCon = pcDataCon crossDataConName alpha_beta_tyvars [] [alphaTy, betaTy] crossTyCon - -plusTyCon :: TyCon -plusTyCon = pcNonRecDataTyCon plusTyConName alpha_beta_tyvars [] [inlDataCon, inrDataCon] - -inlDataCon, inrDataCon :: DataCon -inlDataCon = pcDataCon inlDataConName alpha_beta_tyvars [] [alphaTy] plusTyCon -inrDataCon = pcDataCon inrDataConName alpha_beta_tyvars [] [betaTy] plusTyCon - -genUnitTyCon :: TyCon -- The "1" type constructor for generics -genUnitTyCon = pcNonRecDataTyCon genUnitTyConName [] [] [genUnitDataCon] - -genUnitDataCon :: DataCon -genUnitDataCon = pcDataCon genUnitDataConName [] [] [] genUnitTyCon -\end{code} |