\begin{code}
module TysWiredIn (
+ wiredInTyCons, genericTyCons,
+
addrDataCon,
addrTy,
addrTyCon,
doubleTy,
isDoubleTy,
doubleTyCon,
- falseDataCon,
+ falseDataCon, falseDataConId,
floatDataCon,
floatTy,
isFloatTy,
intTy,
intTyCon,
isIntTy,
- inIntRange,
-
- int8TyCon,
- int16TyCon,
- int32TyCon,
-
- int64TyCon,
integerTy,
integerTyCon,
- integerDataCon,
+ smallIntegerDataCon,
+ largeIntegerDataCon,
isIntegerTy,
listTyCon,
-- tuples
mkTupleTy,
- tupleTyCon, tupleCon, unitTyCon, unitDataCon, pairTyCon, pairDataCon,
-
- -- unboxed tuples
- mkUnboxedTupleTy,
- unboxedTupleTyCon, unboxedTupleCon,
+ tupleTyCon, tupleCon,
+ unitTyCon, unitDataConId, pairTyCon,
+ unboxedSingletonTyCon, unboxedSingletonDataCon,
unboxedPairTyCon, unboxedPairDataCon,
+ -- Generics
+ genUnitTyCon, genUnitDataCon,
+ plusTyCon, inrDataCon, inlDataCon,
+ crossTyCon, crossDataCon,
+
stablePtrTyCon,
stringTy,
- trueDataCon,
+ trueDataCon, trueDataConId,
unitTy,
voidTy,
wordDataCon,
wordTy,
wordTyCon,
- word8TyCon,
- word16TyCon,
- word32TyCon,
- word64TyCon,
-
- isFFIArgumentTy, -- :: Type -> Bool
- isFFIResultTy, -- :: Type -> Bool
- isFFIExternalTy, -- :: Type -> Bool
- isAddrTy, -- :: Type -> Bool
+ isFFIArgumentTy, -- :: Bool -> Type -> Bool
+ isFFIResultTy, -- :: Type -> Bool
+ isFFIExternalTy, -- :: Type -> Bool
+ isFFIDynArgumentTy, -- :: Type -> Bool
+ isFFIDynResultTy, -- :: Type -> Bool
+ isFFILabelTy, -- :: Type -> Bool
+ isAddrTy, -- :: Type -> Bool
+ isForeignObjTy -- :: Type -> Bool
) where
#include "HsVersions.h"
-import {-# SOURCE #-} MkId( mkDataConId )
+import {-# SOURCE #-} MkId( mkDataConId, mkDataConWrapId )
+import {-# SOURCE #-} Generics( mkTyConGenInfo )
-- friends:
-import PrelMods
+import PrelNames
import TysPrim
-- others:
import Constants ( mAX_TUPLE_SIZE )
-import Name ( Module, varOcc, mkWiredInTyConName, mkWiredInIdName )
-import DataCon ( DataCon, mkDataCon )
+import Module ( Module, mkPrelModule )
+import Name ( mkWiredInTyConName, mkWiredInIdName, nameOccName )
+import OccName ( mkOccFS, tcName, dataName, mkWorkerOcc, mkGenOcc1, mkGenOcc2 )
+import RdrName ( RdrName, mkPreludeQual, rdrNameOcc, rdrNameModule )
+import DataCon ( DataCon, StrictnessMark(..), mkDataCon, dataConId )
import Var ( TyVar, tyVarKind )
-import TyCon ( TyCon, mkAlgTyCon, mkSynTyCon, mkTupleTyCon )
-import BasicTypes ( Arity, NewOrData(..),
- RecFlag(..), StrictnessMark(..) )
+import TyCon ( TyCon, AlgTyConFlavour(..), ArgVrcs, tyConDataCons,
+ mkSynTyCon, mkTupleTyCon,
+ isUnLiftedTyCon, mkAlgTyConRep,tyConName
+ )
+
+import BasicTypes ( Arity, RecFlag(..), EP(..), Boxity(..), isBoxed )
+
import Type ( Type, mkTyConTy, mkTyConApp, mkSigmaTy, mkTyVarTys,
mkArrowKinds, boxedTypeKind, unboxedTypeKind,
- mkFunTy, mkFunTys, isUnLiftedType,
- splitTyConApp_maybe, splitAlgTyConApp_maybe,
- ThetaType, TauType )
-import PrimRep ( PrimRep(..) )
-import Unique
-import CmdLineOpts ( opt_GlasgowExts )
-import Util ( assoc )
-import Panic ( panic )
+ mkFunTy, mkFunTys,
+ splitTyConApp_maybe, repType, mkTyVarTy,
+ TauType, ClassContext )
+import Unique ( incrUnique, mkTupleTyConUnique, mkTupleDataConUnique )
+import PrelNames
+import CmdLineOpts ( DynFlags, dopt_GlasgowExts )
import Array
+import Maybe ( fromJust )
+import FiniteMap ( lookupFM )
alpha_tyvar = [alphaTyVar]
alpha_ty = [alphaTy]
alpha_beta_tyvars = [alphaTyVar, betaTyVar]
-
-pcRecDataTyCon, pcNonRecDataTyCon, pcNonRecNewTyCon
- :: Unique{-TyConKey-} -> Module -> FAST_STRING
- -> [TyVar] -> [DataCon] -> TyCon
-
-pcRecDataTyCon = pcTyCon DataType Recursive
-pcNonRecDataTyCon = pcTyCon DataType NonRecursive
-pcNonRecNewTyCon = pcTyCon NewType NonRecursive
-
-pcTyCon new_or_data is_rec key mod str tyvars cons
- = tycon
- where
- tycon = mkAlgTyCon name kind
- tyvars
- [] -- No context
- cons
- [] -- No derivings
- Nothing -- Not a dictionary
- new_or_data
- is_rec
-
- name = mkWiredInTyConName key mod str tycon
- kind = mkArrowKinds (map tyVarKind tyvars) boxedTypeKind
-
-pcSynTyCon key mod str kind arity tyvars expansion
- = tycon
- where
- tycon = mkSynTyCon name kind arity tyvars expansion
- name = mkWiredInTyConName key mod str tycon
-
-pcDataCon :: Unique{-DataConKey-} -> Module -> FAST_STRING
- -> [TyVar] -> ThetaType -> [TauType] -> TyCon -> DataCon
-pcDataCon key mod str tyvars context arg_tys tycon
- = data_con
- where
- data_con = mkDataCon name
- [ NotMarkedStrict | a <- arg_tys ]
- [ {- no labelled fields -} ]
- tyvars context [] [] arg_tys tycon id
- name = mkWiredInIdName key mod (varOcc str) id
- id = mkDataConId data_con
\end{code}
+
%************************************************************************
%* *
-\subsection[TysWiredIn-tuples]{The tuple types}
+\subsection{Wired in type constructors}
%* *
%************************************************************************
\begin{code}
-tupleTyCon :: Arity -> TyCon
-tupleTyCon i | i > mAX_TUPLE_SIZE = fst (mk_tuple i) -- Build one specially
- | otherwise = tupleTyConArr!i
-
-tupleCon :: Arity -> DataCon
-tupleCon i | i > mAX_TUPLE_SIZE = snd (mk_tuple i) -- Build one specially
- | otherwise = tupleConArr!i
-
-tupleTyCons :: [TyCon]
-tupleTyCons = elems tupleTyConArr
+wiredInTyCons :: [TyCon]
+wiredInTyCons = data_tycons ++ tuple_tycons ++ unboxed_tuple_tycons
+
+data_tycons = genericTyCons ++
+ [ addrTyCon
+ , boolTyCon
+ , charTyCon
+ , doubleTyCon
+ , floatTyCon
+ , intTyCon
+ , integerTyCon
+ , listTyCon
+ , wordTyCon
+ ]
+
+genericTyCons :: [TyCon]
+genericTyCons = [ plusTyCon, crossTyCon, genUnitTyCon ]
+
+
+tuple_tycons = unitTyCon : [tupleTyCon Boxed i | i <- [2..37] ]
+unboxed_tuple_tycons = [tupleTyCon Unboxed i | i <- [1..37] ]
+\end{code}
-tupleTyConArr :: Array Int TyCon
-tupleTyConArr = array (0,mAX_TUPLE_SIZE) ([0..] `zip` map fst tuples)
-tupleConArr :: Array Int DataCon
-tupleConArr = array (0,mAX_TUPLE_SIZE) ([0..] `zip` map snd tuples)
+%************************************************************************
+%* *
+\subsection{mkWiredInTyCon}
+%* *
+%************************************************************************
-tuples :: [(TyCon,DataCon)]
-tuples = [mk_tuple i | i <- [0..mAX_TUPLE_SIZE]]
+\begin{code}
+pcNonRecDataTyCon = pcTyCon DataTyCon NonRecursive
+pcRecDataTyCon = pcTyCon DataTyCon Recursive
-mk_tuple :: Int -> (TyCon,DataCon)
-mk_tuple arity = (tycon, tuple_con)
+pcTyCon new_or_data is_rec key rdr_name tyvars argvrcs cons
+ = tycon
+ where
+ tycon = mkAlgTyConRep name kind
+ tyvars
+ [] -- No context
+ argvrcs
+ cons
+ (length cons)
+ [] -- No derivings
+ new_or_data
+ is_rec
+ gen_info
+
+ mod = mkPrelModule (rdrNameModule rdr_name)
+ occ = rdrNameOcc rdr_name
+ name = mkWiredInTyConName key mod occ tycon
+ kind = mkArrowKinds (map tyVarKind tyvars) boxedTypeKind
+ gen_info = mk_tc_gen_info mod key name tycon
+
+pcDataCon :: Unique -- DataConKey
+ -> RdrName -- Qualified
+ -> [TyVar] -> ClassContext -> [TauType] -> TyCon -> DataCon
+-- The unique is the first of two free uniques;
+-- the first is used for the datacon itself and the worker;
+-- the second is used for the wrapper.
+
+pcDataCon wrap_key rdr_name tyvars context arg_tys tycon
+ = data_con
where
- tycon = mkTupleTyCon tc_name tc_kind arity tyvars tuple_con True
- tc_name = mkWiredInTyConName tc_uniq mod_name name_str tycon
- tc_kind = mkArrowKinds (map tyVarKind tyvars) boxedTypeKind
+ mod = mkPrelModule (rdrNameModule rdr_name)
+ wrap_occ = rdrNameOcc rdr_name
- tuple_con = pcDataCon dc_uniq mod_name name_str tyvars [] tyvar_tys tycon
- tyvars = take arity alphaTyVars
- tyvar_tys = mkTyVarTys tyvars
- (mod_name, name_str) = mkTupNameStr arity
- tc_uniq = mkTupleTyConUnique arity
- dc_uniq = mkTupleDataConUnique arity
+ data_con = mkDataCon wrap_name
+ [ NotMarkedStrict | a <- arg_tys ]
+ [ {- no labelled fields -} ]
+ tyvars context [] [] arg_tys tycon work_id wrap_id
-unitTyCon = tupleTyCon 0
-pairTyCon = tupleTyCon 2
+ work_occ = mkWorkerOcc wrap_occ
+ work_key = incrUnique wrap_key
+ work_name = mkWiredInIdName work_key mod work_occ work_id
+ work_id = mkDataConId work_name data_con
-unitDataCon = tupleCon 0
-pairDataCon = tupleCon 2
+ wrap_name = mkWiredInIdName wrap_key mod wrap_occ wrap_id
+ wrap_id = mkDataConWrapId data_con
\end{code}
+
%************************************************************************
%* *
-\subsection[TysWiredIn-ubx-tuples]{Unboxed Tuple Types}
+\subsection[TysWiredIn-tuples]{The tuple types}
%* *
%************************************************************************
\begin{code}
-unboxedTupleTyCon :: Arity -> TyCon
-unboxedTupleTyCon i | i > mAX_TUPLE_SIZE = fst (mk_unboxed_tuple i)
- | otherwise = unboxedTupleTyConArr!i
-
-unboxedTupleCon :: Arity -> DataCon
-unboxedTupleCon i | i > mAX_TUPLE_SIZE = snd (mk_unboxed_tuple i)
- | otherwise = unboxedTupleConArr!i
-
-unboxedTupleTyConArr :: Array Int TyCon
-unboxedTupleTyConArr = array (0,mAX_TUPLE_SIZE) ([0..] `zip` map fst ubx_tuples)
-
-unboxedTupleConArr :: Array Int DataCon
-unboxedTupleConArr = array (0,mAX_TUPLE_SIZE) ([0..] `zip` map snd ubx_tuples)
-
-ubx_tuples :: [(TyCon,DataCon)]
-ubx_tuples = [mk_unboxed_tuple i | i <- [0..mAX_TUPLE_SIZE]]
-
-mk_unboxed_tuple :: Int -> (TyCon,DataCon)
-mk_unboxed_tuple arity = (tycon, tuple_con)
+tupleTyCon :: Boxity -> Arity -> TyCon
+tupleTyCon boxity i | i > mAX_TUPLE_SIZE = fst (mk_tuple boxity i) -- Build one specially
+tupleTyCon Boxed i = fst (boxedTupleArr ! i)
+tupleTyCon Unboxed i = fst (unboxedTupleArr ! i)
+
+tupleCon :: Boxity -> Arity -> DataCon
+tupleCon boxity i | i > mAX_TUPLE_SIZE = snd (mk_tuple boxity i) -- Build one specially
+tupleCon Boxed i = snd (boxedTupleArr ! i)
+tupleCon Unboxed i = snd (unboxedTupleArr ! i)
+
+boxedTupleArr, unboxedTupleArr :: Array Int (TyCon,DataCon)
+boxedTupleArr = array (0,mAX_TUPLE_SIZE) [(i,mk_tuple Boxed i) | i <- [0..mAX_TUPLE_SIZE]]
+unboxedTupleArr = array (0,mAX_TUPLE_SIZE) [(i,mk_tuple Unboxed i) | i <- [0..mAX_TUPLE_SIZE]]
+
+mk_tuple :: Boxity -> Int -> (TyCon,DataCon)
+mk_tuple boxity arity = (tycon, tuple_con)
where
- tycon = mkTupleTyCon tc_name tc_kind arity tyvars tuple_con False
- tc_name = mkWiredInTyConName tc_uniq mod_name name_str tycon
- tc_kind = mkArrowKinds (map tyVarKind tyvars) unboxedTypeKind
+ tycon = mkTupleTyCon tc_name tc_kind arity tyvars tuple_con boxity gen_info
+ tc_name = mkWiredInTyConName tc_uniq mod (mkOccFS tcName name_str) tycon
+ tc_kind = mkArrowKinds (map tyVarKind tyvars) res_kind
+ res_kind | isBoxed boxity = boxedTypeKind
+ | otherwise = unboxedTypeKind
- tuple_con = pcDataCon dc_uniq mod_name name_str tyvars [] tyvar_tys tycon
- tyvars = take arity openAlphaTyVars
- tyvar_tys = mkTyVarTys tyvars
- (mod_name, name_str) = mkUbxTupNameStr arity
- tc_uniq = mkUbxTupleTyConUnique arity
- dc_uniq = mkUbxTupleDataConUnique arity
+ tyvars | isBoxed boxity = take arity alphaTyVars
+ | otherwise = take arity openAlphaTyVars
-unboxedPairTyCon = unboxedTupleTyCon 2
-unboxedPairDataCon = unboxedTupleCon 2
+ tuple_con = pcDataCon dc_uniq rdr_name tyvars [] tyvar_tys tycon
+ tyvar_tys = mkTyVarTys tyvars
+ (mod_name, name_str) = mkTupNameStr boxity arity
+ rdr_name = mkPreludeQual dataName mod_name name_str
+ tc_uniq = mkTupleTyConUnique boxity arity
+ dc_uniq = mkTupleDataConUnique boxity arity
+ mod = mkPrelModule mod_name
+ gen_info = mk_tc_gen_info mod tc_uniq tc_name tycon
+
+mk_tc_gen_info mod tc_uniq tc_name tycon
+ = gen_info
+ 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 = mkWiredInIdName fn1_key mod occ_name1 id1
+ name2 = mkWiredInIdName fn2_key mod occ_name2 id2
+ gen_info = mkTyConGenInfo tycon name1 name2
+ Just (EP id1 id2) = gen_info
+
+unitTyCon = tupleTyCon Boxed 0
+unitDataConId = dataConId (head (tyConDataCons unitTyCon))
+
+pairTyCon = tupleTyCon Boxed 2
+
+unboxedSingletonTyCon = tupleTyCon Unboxed 1
+unboxedSingletonDataCon = tupleCon Unboxed 1
+
+unboxedPairTyCon = tupleTyCon Unboxed 2
+unboxedPairDataCon = tupleCon Unboxed 2
\end{code}
%************************************************************************
\begin{code}
charTy = mkTyConTy charTyCon
-charTyCon = pcNonRecDataTyCon charTyConKey pREL_BASE SLIT("Char") [] [charDataCon]
-charDataCon = pcDataCon charDataConKey pREL_BASE SLIT("C#") [] [] [charPrimTy] charTyCon
+charTyCon = pcNonRecDataTyCon charTyConKey charTyCon_RDR [] [] [charDataCon]
+charDataCon = pcDataCon charDataConKey charDataCon_RDR [] [] [charPrimTy] charTyCon
stringTy = mkListTy charTy -- convenience only
\end{code}
\begin{code}
intTy = mkTyConTy intTyCon
-intTyCon = pcNonRecDataTyCon intTyConKey pREL_BASE SLIT("Int") [] [intDataCon]
-intDataCon = pcDataCon intDataConKey pREL_BASE SLIT("I#") [] [] [intPrimTy] intTyCon
+intTyCon = pcNonRecDataTyCon intTyConKey intTyCon_RDR [] [] [intDataCon]
+intDataCon = pcDataCon intDataConKey mkInt_RDR [] [] [intPrimTy] intTyCon
isIntTy :: Type -> Bool
-isIntTy ty
- = case (splitAlgTyConApp_maybe ty) of
- Just (tycon, [], _) -> getUnique tycon == intTyConKey
- _ -> False
-
-inIntRange :: Integer -> Bool -- Tells if an integer lies in the legal range of Ints
-inIntRange i = (min_int <= i) && (i <= max_int)
-
-max_int, min_int :: Integer
-max_int = toInteger maxInt
-min_int = toInteger minInt
-
-int8TyCon = pcNonRecDataTyCon int8TyConKey iNT SLIT("Int8") [] [int8DataCon]
- where
- int8DataCon = pcDataCon int8DataConKey iNT SLIT("I8#") [] [] [intPrimTy] int8TyCon
-
-int16TyCon = pcNonRecDataTyCon int16TyConKey iNT SLIT("Int16") [] [int16DataCon]
- where
- int16DataCon = pcDataCon int16DataConKey iNT SLIT("I16#") [] [] [intPrimTy] int16TyCon
-
-int32TyCon = pcNonRecDataTyCon int32TyConKey iNT SLIT("Int32") [] [int32DataCon]
- where
- int32DataCon = pcDataCon int32DataConKey iNT SLIT("I32#") [] [] [intPrimTy] int32TyCon
-
-int64TyCon = pcNonRecDataTyCon int64TyConKey pREL_ADDR SLIT("Int64") [] [int64DataCon]
- where
- int64DataCon = pcDataCon int64DataConKey pREL_ADDR SLIT("I64#") [] [] [int64PrimTy] int64TyCon
+isIntTy = isTyCon intTyConKey
\end{code}
\begin{code}
wordTy = mkTyConTy wordTyCon
-wordTyCon = pcNonRecDataTyCon wordTyConKey pREL_ADDR SLIT("Word") [] [wordDataCon]
-wordDataCon = pcDataCon wordDataConKey pREL_ADDR SLIT("W#") [] [] [wordPrimTy] wordTyCon
-
-word8TyCon = pcNonRecDataTyCon word8TyConKey wORD SLIT("Word8") [] [word8DataCon]
- where
- word8DataCon = pcDataCon word8DataConKey wORD SLIT("W8#") [] [] [wordPrimTy] word8TyCon
-
-word16TyCon = pcNonRecDataTyCon word16TyConKey wORD SLIT("Word16") [] [word16DataCon]
- where
- word16DataCon = pcDataCon word16DataConKey wORD SLIT("W16#") [] [] [wordPrimTy] word16TyCon
-
-word32TyCon = pcNonRecDataTyCon word32TyConKey wORD SLIT("Word32") [] [word32DataCon]
- where
- word32DataCon = pcDataCon word32DataConKey wORD SLIT("W32#") [] [] [wordPrimTy] word32TyCon
-
-word64TyCon = pcNonRecDataTyCon word64TyConKey pREL_ADDR SLIT("Word64") [] [word64DataCon]
- where
- word64DataCon = pcDataCon word64DataConKey pREL_ADDR SLIT("W64#") [] [] [word64PrimTy] word64TyCon
+wordTyCon = pcNonRecDataTyCon wordTyConKey wordTyCon_RDR [] [] [wordDataCon]
+wordDataCon = pcDataCon wordDataConKey wordDataCon_RDR [] [] [wordPrimTy] wordTyCon
\end{code}
\begin{code}
addrTy = mkTyConTy addrTyCon
-addrTyCon = pcNonRecDataTyCon addrTyConKey pREL_ADDR SLIT("Addr") [] [addrDataCon]
-addrDataCon = pcDataCon addrDataConKey pREL_ADDR SLIT("A#") [] [] [addrPrimTy] addrTyCon
+addrTyCon = pcNonRecDataTyCon addrTyConKey addrTyCon_RDR [] [] [addrDataCon]
+addrDataCon = pcDataCon addrDataConKey addrDataCon_RDR [] [] [addrPrimTy] addrTyCon
isAddrTy :: Type -> Bool
-isAddrTy ty
- = case (splitAlgTyConApp_maybe ty) of
- Just (tycon, [], _) -> getUnique tycon == addrTyConKey
- _ -> False
-
+isAddrTy = isTyCon addrTyConKey
\end{code}
\begin{code}
floatTy = mkTyConTy floatTyCon
-floatTyCon = pcNonRecDataTyCon floatTyConKey pREL_BASE SLIT("Float") [] [floatDataCon]
-floatDataCon = pcDataCon floatDataConKey pREL_BASE SLIT("F#") [] [] [floatPrimTy] floatTyCon
+floatTyCon = pcNonRecDataTyCon floatTyConKey floatTyCon_RDR [] [] [floatDataCon]
+floatDataCon = pcDataCon floatDataConKey floatDataCon_RDR [] [] [floatPrimTy] floatTyCon
isFloatTy :: Type -> Bool
-isFloatTy ty
- = case (splitAlgTyConApp_maybe ty) of
- Just (tycon, [], _) -> getUnique tycon == floatTyConKey
- _ -> False
-
+isFloatTy = isTyCon floatTyConKey
\end{code}
\begin{code}
doubleTy = mkTyConTy doubleTyCon
isDoubleTy :: Type -> Bool
-isDoubleTy ty
- = case (splitAlgTyConApp_maybe ty) of
- Just (tycon, [], _) -> getUnique tycon == doubleTyConKey
- _ -> False
+isDoubleTy = isTyCon doubleTyConKey
-doubleTyCon = pcNonRecDataTyCon doubleTyConKey pREL_BASE SLIT("Double") [] [doubleDataCon]
-doubleDataCon = pcDataCon doubleDataConKey pREL_BASE SLIT("D#") [] [] [doublePrimTy] doubleTyCon
+doubleTyCon = pcNonRecDataTyCon doubleTyConKey doubleTyCon_RDR [] [] [doubleDataCon]
+doubleDataCon = pcDataCon doubleDataConKey doubleDataCon_RDR [] [] [doublePrimTy] doubleTyCon
\end{code}
\begin{code}
stablePtrTyCon
- = pcNonRecDataTyCon stablePtrTyConKey pREL_STABLE SLIT("StablePtr")
- alpha_tyvar [stablePtrDataCon]
+ = pcNonRecDataTyCon stablePtrTyConKey stablePtrTyCon_RDR
+ alpha_tyvar [(True,False)] [stablePtrDataCon]
where
stablePtrDataCon
- = pcDataCon stablePtrDataConKey pREL_STABLE SLIT("StablePtr")
+ = pcDataCon stablePtrDataConKey stablePtrDataCon_RDR
alpha_tyvar [] [mkStablePtrPrimTy alphaTy] stablePtrTyCon
\end{code}
\begin{code}
foreignObjTyCon
- = pcNonRecDataTyCon foreignObjTyConKey pREL_IO_BASE SLIT("ForeignObj")
- [] [foreignObjDataCon]
+ = pcNonRecDataTyCon foreignObjTyConKey foreignObjTyCon_RDR
+ [] [] [foreignObjDataCon]
where
foreignObjDataCon
- = pcDataCon foreignObjDataConKey pREL_IO_BASE SLIT("ForeignObj")
+ = pcDataCon foreignObjDataConKey foreignObjDataCon_RDR
[] [] [foreignObjPrimTy] foreignObjTyCon
+
+isForeignObjTy :: Type -> Bool
+isForeignObjTy = isTyCon foreignObjTyConKey
\end{code}
%************************************************************************
integerTy :: Type
integerTy = mkTyConTy integerTyCon
-integerTyCon = pcNonRecDataTyCon integerTyConKey pREL_BASE SLIT("Integer") [] [integerDataCon]
+integerTyCon = pcNonRecDataTyCon integerTyConKey integerTyCon_RDR
+ [] [] [smallIntegerDataCon, largeIntegerDataCon]
+
+smallIntegerDataCon = pcDataCon smallIntegerDataConKey smallIntegerDataCon_RDR
+ [] [] [intPrimTy] integerTyCon
+largeIntegerDataCon = pcDataCon largeIntegerDataConKey largeIntegerDataCon_RDR
+ [] [] [intPrimTy, byteArrayPrimTy] integerTyCon
-integerDataCon = pcDataCon integerDataConKey pREL_BASE SLIT("J#")
- [] [] [intPrimTy, intPrimTy, byteArrayPrimTy] integerTyCon
isIntegerTy :: Type -> Bool
-isIntegerTy ty
- = case (splitAlgTyConApp_maybe ty) of
- Just (tycon, [], _) -> getUnique tycon == integerTyConKey
- _ -> False
+isIntegerTy = isTyCon integerTyConKey
\end{code}
being the )
\begin{code}
-isFFIArgumentTy :: Type -> Bool
-isFFIArgumentTy ty =
- (opt_GlasgowExts && isUnLiftedType ty) || --leave out for now: maybeToBool (maybeBoxedPrimType ty))) ||
- case (splitAlgTyConApp_maybe ty) of
- Just (tycon, _, _) -> (getUnique tycon) `elem` primArgTyConKeys
- _ -> False
-
--- types that can be passed as arguments to "foreign" functions
-primArgTyConKeys
- = [ intTyConKey, int8TyConKey, int16TyConKey, int32TyConKey, int64TyConKey
- , wordTyConKey, word8TyConKey, word16TyConKey, word32TyConKey, word64TyConKey
- , floatTyConKey, doubleTyConKey
- , addrTyConKey, charTyConKey, foreignObjTyConKey
- , stablePtrTyConKey
- , byteArrayTyConKey, mutableByteArrayTyConKey
- ]
-
--- types that can be passed from the outside world into Haskell.
--- excludes (mutable) byteArrays.
-isFFIExternalTy :: Type -> Bool
-isFFIExternalTy ty =
- (opt_GlasgowExts && isUnLiftedType ty) || --leave out for now: maybeToBool (maybeBoxedPrimType ty))) ||
- case (splitAlgTyConApp_maybe ty) of
- Just (tycon, _, _) ->
- let
- u_tycon = getUnique tycon
- in
- (u_tycon `elem` primArgTyConKeys) &&
- not (u_tycon `elem` notLegalExternalTyCons)
- _ -> False
+isFFIArgumentTy :: DynFlags -> Bool -> Type -> Bool
+-- Checks for valid argument type for a 'foreign import'
+isFFIArgumentTy dflags is_safe ty
+ = checkRepTyCon (legalOutgoingTyCon dflags is_safe) ty
+isFFIExternalTy :: Type -> Bool
+-- Types that are allowed as arguments of a 'foreign export'
+isFFIExternalTy ty = checkRepTyCon legalIncomingTyCon ty
isFFIResultTy :: Type -> Bool
-isFFIResultTy ty =
- not (isUnLiftedType ty) &&
- case (splitAlgTyConApp_maybe ty) of
- Just (tycon, _, _) ->
- let
- u_tycon = getUnique tycon
- in
- (u_tycon == getUnique unitTyCon) ||
- ((u_tycon `elem` primArgTyConKeys) &&
- not (u_tycon `elem` notLegalExternalTyCons))
- _ -> False
-
--- it's illegal to return foreign objects and (mutable)
+-- Types that are allowed as a result of a 'foreign import' or of a 'foreign export'
+-- Maybe we should distinguish between import and export, but
+-- here we just choose the more restrictive 'incoming' predicate
+-- But we allow () as well
+isFFIResultTy ty = checkRepTyCon (\tc -> tc == unitTyCon || legalIncomingTyCon tc) ty
+
+isFFIDynArgumentTy :: Type -> Bool
+-- The argument type of a foreign import dynamic must be either Addr, or
+-- a newtype of Addr.
+isFFIDynArgumentTy = checkRepTyCon (== addrTyCon)
+
+isFFIDynResultTy :: Type -> Bool
+-- The result type of a foreign export dynamic must be either Addr, or
+-- a newtype of Addr.
+isFFIDynResultTy = checkRepTyCon (== addrTyCon)
+
+isFFILabelTy :: Type -> Bool
+-- The type of a foreign label must be either Addr, or
+-- a newtype of Addr.
+isFFILabelTy = checkRepTyCon (== addrTyCon)
+
+checkRepTyCon :: (TyCon -> Bool) -> Type -> Bool
+ -- look through newtypes
+checkRepTyCon check_tc ty = checkTyCon check_tc (repType ty)
+
+checkTyCon :: (TyCon -> Bool) -> Type -> Bool
+checkTyCon check_tc ty = case splitTyConApp_maybe ty of
+ Just (tycon, _) -> check_tc tycon
+ Nothing -> False
+
+isTyCon :: Unique -> Type -> Bool
+isTyCon uniq ty = checkTyCon (\tc -> uniq == getUnique tc) ty
+\end{code}
+
+----------------------------------------------
+These chaps do the work; they are not exported
+----------------------------------------------
+
+\begin{code}
+legalIncomingTyCon :: TyCon -> Bool
+-- It's illegal to return foreign objects and (mutable)
-- bytearrays from a _ccall_ / foreign declaration
-- (or be passed them as arguments in foreign exported functions).
-notLegalExternalTyCons =
- [ foreignObjTyConKey, byteArrayTyConKey, mutableByteArrayTyConKey ]
-
+legalIncomingTyCon tc
+ | getUnique tc `elem` [ foreignObjTyConKey, byteArrayTyConKey,
+ mutableByteArrayTyConKey ]
+ = False
+ -- It's also illegal to make foreign exports that take unboxed
+ -- arguments. The RTS API currently can't invoke such things. --SDM 7/2000
+ | otherwise
+ = boxedMarshalableTyCon tc
+
+legalOutgoingTyCon :: DynFlags -> Bool -> TyCon -> Bool
+-- Checks validity of types going from Haskell -> external world
+-- The boolean is true for a 'safe' call (when we don't want to
+-- pass Haskell pointers to the world)
+legalOutgoingTyCon dflags be_safe tc
+ | be_safe && getUnique tc `elem` [byteArrayTyConKey, mutableByteArrayTyConKey]
+ = False
+ | otherwise
+ = marshalableTyCon dflags tc
+
+marshalableTyCon dflags tc
+ = (dopt_GlasgowExts dflags && isUnLiftedTyCon tc)
+ || boxedMarshalableTyCon tc
+
+boxedMarshalableTyCon tc
+ = getUnique tc `elem` [ intTyConKey, int8TyConKey, int16TyConKey, int32TyConKey, int64TyConKey
+ , wordTyConKey, word8TyConKey, word16TyConKey, word32TyConKey, word64TyConKey
+ , floatTyConKey, doubleTyConKey
+ , addrTyConKey, charTyConKey, foreignObjTyConKey
+ , stablePtrTyConKey
+ , byteArrayTyConKey, mutableByteArrayTyConKey
+ , boolTyConKey
+ ]
\end{code}
+
%************************************************************************
%* *
\subsection[TysWiredIn-Bool]{The @Bool@ type}
\begin{code}
boolTy = mkTyConTy boolTyCon
-boolTyCon = pcTyCon EnumType NonRecursive boolTyConKey
- pREL_BASE SLIT("Bool") [] [falseDataCon, trueDataCon]
+boolTyCon = pcTyCon EnumTyCon NonRecursive boolTyConKey
+ boolTyCon_RDR [] [] [falseDataCon, trueDataCon]
-falseDataCon = pcDataCon falseDataConKey pREL_BASE SLIT("False") [] [] [] boolTyCon
-trueDataCon = pcDataCon trueDataConKey pREL_BASE SLIT("True") [] [] [] boolTyCon
+falseDataCon = pcDataCon falseDataConKey false_RDR [] [] [] boolTyCon
+trueDataCon = pcDataCon trueDataConKey true_RDR [] [] [] boolTyCon
+
+falseDataConId = dataConId falseDataCon
+trueDataConId = dataConId trueDataCon
\end{code}
%************************************************************************
alphaListTy = mkSigmaTy alpha_tyvar [] (mkTyConApp listTyCon alpha_ty)
-listTyCon = pcRecDataTyCon listTyConKey pREL_BASE SLIT("[]")
- alpha_tyvar [nilDataCon, consDataCon]
+listTyCon = pcRecDataTyCon listTyConKey listTyCon_RDR
+ alpha_tyvar [(True,False)] [nilDataCon, consDataCon]
-nilDataCon = pcDataCon nilDataConKey pREL_BASE SLIT("[]") alpha_tyvar [] [] listTyCon
-consDataCon = pcDataCon consDataConKey pREL_BASE SLIT(":")
+nilDataCon = pcDataCon nilDataConKey nil_RDR alpha_tyvar [] [] listTyCon
+consDataCon = pcDataCon consDataConKey cons_RDR
alpha_tyvar [] [alphaTy, mkTyConApp listTyCon alpha_ty] listTyCon
-- Interesting: polymorphic recursion would help here.
-- We can't use (mkListTy alphaTy) in the defn of consDataCon, else mkListTy
\end{itemize}
\begin{code}
-mkTupleTy :: Int -> [Type] -> Type
-mkTupleTy arity tys = mkTyConApp (tupleTyCon arity) tys
+mkTupleTy :: Boxity -> Int -> [Type] -> Type
+mkTupleTy boxity arity tys = mkTyConApp (tupleTyCon boxity arity) tys
-mkUnboxedTupleTy :: Int -> [Type] -> Type
-mkUnboxedTupleTy arity tys = mkTyConApp (unboxedTupleTyCon arity) tys
+unitTy = mkTupleTy Boxed 0 []
+\end{code}
-unitTy = mkTupleTy 0 []
+%************************************************************************
+%* *
+\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 crossTyConKey crossTyCon_RDR alpha_beta_tyvars [] [crossDataCon]
+
+crossDataCon :: DataCon
+crossDataCon = pcDataCon crossDataConKey crossDataCon_RDR alpha_beta_tyvars [] [alphaTy, betaTy] crossTyCon
+
+plusTyCon :: TyCon
+plusTyCon = pcNonRecDataTyCon plusTyConKey plusTyCon_RDR alpha_beta_tyvars [] [inlDataCon, inrDataCon]
+
+inlDataCon, inrDataCon :: DataCon
+inlDataCon = pcDataCon inlDataConKey inlDataCon_RDR alpha_beta_tyvars [] [alphaTy] plusTyCon
+inrDataCon = pcDataCon inrDataConKey inrDataCon_RDR alpha_beta_tyvars [] [betaTy] plusTyCon
+
+genUnitTyCon :: TyCon -- The "1" type constructor for generics
+genUnitTyCon = pcNonRecDataTyCon genUnitTyConKey genUnitTyCon_RDR [] [] [genUnitDataCon]
+
+genUnitDataCon :: DataCon
+genUnitDataCon = pcDataCon genUnitDataConKey genUnitDataCon_RDR [] [] [] genUnitTyCon
\end{code}
+
+
+
+
+
projects / ghc-hetmet.git / blobdiff