toHsType
)
-import PrelNames ( mETA_META_Name, rationalTyConName )
+import PrelNames ( mETA_META_Name, rationalTyConName, negateName,
+ parrTyConName )
import MkIface ( ifaceTyThing )
import Name ( Name, nameOccName, nameModule )
import OccName ( isDataOcc, isTvOcc, occNameUserString )
import OccName ( mkOccFS )
import NameEnv
import NameSet
-import Type ( Type, TyThing(..), mkGenTyConApp )
+import Type ( Type, mkGenTyConApp )
+import TcType ( TyThing(..), tcTyConAppArgs )
import TyCon ( DataConDetails(..) )
import TysWiredIn ( stringTy )
import CoreSyn
import CoreUtils ( exprType )
import SrcLoc ( noSrcLoc )
-import Maybe ( catMaybes )
+import Maybes ( orElse )
+import Maybe ( catMaybes, fromMaybe )
import Panic ( panic )
import Unique ( mkPreludeTyConUnique, mkPreludeMiscIdUnique )
import BasicTypes ( NewOrData(..), StrictnessMark(..), isBoxed )
import Outputable
import FastString ( mkFastString )
+
+import Monad ( zipWithM )
-----------------------------------------------------------------------------
dsBracket :: HsBracket Name -> [PendingSplice] -> DsM CoreExpr
-- do { t :: String <- genSym "T" ;
-- return (Data t [] ...more t's... }
-- The other important reason is that the output must mention
- -- only "T", not "Foo.T" where Foo is the current module
+ -- only "T", not "Foo:T" where Foo is the current module
decls <- addBinds ss (do {
decl_ty <- lookupType declTyConName ;
let { core_list = coreList' decl_ty decls } ;
- q_decs <- repSequenceQ decl_ty core_list ;
+
+ dec_ty <- lookupType decTyConName ;
+ q_decs <- repSequenceQ dec_ty core_list ;
wrapNongenSyms ss q_decs
-- Do *not* gensym top-level binders
repTyClD :: TyClDecl Name -> DsM (Maybe (Core M.Decl))
-repTyClD (TyData { tcdND = DataType, tcdCtxt = [],
+repTyClD (TyData { tcdND = DataType, tcdCtxt = cxt,
tcdName = tc, tcdTyVars = tvs,
tcdCons = DataCons cons, tcdDerivs = mb_derivs })
- = do { tc1 <- lookupOcc tc ; -- See note [Binders and occurrences]
- tvs1 <- repTvs tvs ;
- cons1 <- mapM repC cons ;
- cons2 <- coreList consTyConName cons1 ;
- derivs1 <- repDerivs mb_derivs ;
- dec <- repData tc1 tvs1 cons2 derivs1 ;
- return (Just dec) }
+ = do { tc1 <- lookupOcc tc ; -- See note [Binders and occurrences]
+ dec <- addTyVarBinds tvs $ \bndrs -> do {
+ cxt1 <- repContext cxt ;
+ cons1 <- mapM repC cons ;
+ cons2 <- coreList consTyConName cons1 ;
+ derivs1 <- repDerivs mb_derivs ;
+ repData cxt1 tc1 (coreList' stringTy bndrs) cons2 derivs1 } ;
+ return $ Just dec }
+
+repTyClD (TySynonym { tcdName = tc, tcdTyVars = tvs, tcdSynRhs = ty })
+ = do { tc1 <- lookupOcc tc ; -- See note [Binders and occurrences]
+ dec <- addTyVarBinds tvs $ \bndrs -> do {
+ ty1 <- repTy ty ;
+ repTySyn tc1 (coreList' stringTy bndrs) ty1 } ;
+ return (Just dec) }
repTyClD (ClassDecl { tcdCtxt = cxt, tcdName = cls,
- tcdTyVars = tvs, tcdFDs = [],
- tcdSigs = sigs, tcdMeths = Just binds
- })
+ tcdTyVars = tvs,
+ tcdFDs = [], -- We don't understand functional dependencies
+ tcdSigs = sigs, tcdMeths = mb_meth_binds })
= do { cls1 <- lookupOcc cls ; -- See note [Binders and occurrences]
- tvs1 <- repTvs tvs ;
- cxt1 <- repCtxt cxt ;
- sigs1 <- rep_sigs sigs ;
- binds1 <- rep_monobind binds ;
- decls1 <- coreList declTyConName (sigs1 ++ binds1) ;
- dec <- repClass cxt1 cls1 tvs1 decls1 ;
- return (Just dec) }
+ dec <- addTyVarBinds tvs $ \bndrs -> do {
+ cxt1 <- repContext cxt ;
+ sigs1 <- rep_sigs sigs ;
+ binds1 <- rep_monobind meth_binds ;
+ decls1 <- coreList declTyConName (sigs1 ++ binds1) ;
+ repClass cxt1 cls1 (coreList' stringTy bndrs) decls1 } ;
+ return $ Just dec }
+ where
+ -- If the user quotes a class decl, it'll have default-method
+ -- bindings; but if we (reifyDecl C) where C is a class, we
+ -- won't be given the default methods (a definite infelicity).
+ meth_binds = mb_meth_binds `orElse` EmptyMonoBinds
-- Un-handled cases
repTyClD d = do { addDsWarn (hang msg 4 (ppr d)) ;
repInstD (InstDecl ty binds _ _ loc)
-- Ignore user pragmas for now
- = do { cxt1 <- repCtxt cxt ;
+ = do { cxt1 <- repContext cxt ;
inst_ty1 <- repPred (HsClassP cls tys) ;
binds1 <- rep_monobind binds ;
decls1 <- coreList declTyConName binds1 ;
repC :: ConDecl Name -> DsM (Core M.Cons)
repC (ConDecl con [] [] details loc)
= do { con1 <- lookupOcc con ; -- See note [Binders and occurrences]
- arg_tys <- mapM (repBangTy con) (hsConArgs details) ;
- arg_tys1 <- coreList typeTyConName arg_tys ;
- repConstr con1 arg_tys1 }
+ repConstr con1 details }
-repBangTy con (BangType NotMarkedStrict ty) = repTy ty
-repBangTy con bty = do { addDsWarn msg ; repTy (getBangType bty) }
- where
- msg = ptext SLIT("Ignoring stricness on argument of constructor")
- <+> quotes (ppr con)
+repBangTy :: BangType Name -> DsM (Core (M.Q (M.Strictness, M.Typ)))
+repBangTy (BangType str ty) = do MkC s <- rep2 strName []
+ MkC t <- repTy ty
+ rep2 strictTypeName [s, t]
+ where strName = case str of
+ NotMarkedStrict -> nonstrictName
+ _ -> strictName
-------------------------------------------------------
-- Deriving clause
rep_sig (Sig nm ty _) = rep_proto nm ty
rep_sig other = return []
-rep_proto nm ty = do { nm1 <- lookupBinder nm ;
+rep_proto nm ty = do { nm1 <- lookupOcc nm ;
ty1 <- repTy ty ;
sig <- repProto nm1 ty1 ;
return [sig] }
-- Types
-------------------------------------------------------
-repTvs :: [HsTyVarBndr Name] -> DsM (Core [String])
-repTvs tvs = do { tvs1 <- mapM (localVar . hsTyVarName) tvs ;
- return (coreList' stringTy tvs1) }
-
------------------
-repCtxt :: HsContext Name -> DsM (Core M.Ctxt)
-repCtxt ctxt = do { preds <- mapM repPred ctxt;
- coreList typeTyConName preds }
+-- gensym a list of type variables and enter them into the meta environment;
+-- the computations passed as the second argument is executed in that extended
+-- meta environment and gets the *new* names on Core-level as an argument
+--
+addTyVarBinds :: [HsTyVarBndr Name] -- the binders to be added
+ -> ([Core String] -> DsM (Core (M.Q a))) -- action in the ext env
+ -> DsM (Core (M.Q a))
+addTyVarBinds tvs m =
+ do
+ let names = map hsTyVarName tvs
+ freshNames <- mkGenSyms names
+ term <- addBinds freshNames $ do
+ bndrs <- mapM lookupBinder names
+ m bndrs
+ wrapGenSyns freshNames term
+
+-- represent a type context
+--
+repContext :: HsContext Name -> DsM (Core M.Ctxt)
+repContext ctxt = do
+ preds <- mapM repPred ctxt
+ predList <- coreList typeTyConName preds
+ repCtxt predList
------------------
+-- represent a type predicate
+--
repPred :: HsPred Name -> DsM (Core M.Type)
-repPred (HsClassP cls tys)
- = do { tc1 <- lookupOcc cls; tcon <- repNamedTyCon tc1;
- tys1 <- repTys tys; repTapps tcon tys1 }
-repPred (HsIParam _ _) = panic "No implicit parameters yet"
-
------------------
+repPred (HsClassP cls tys) = do
+ tcon <- repTy (HsTyVar cls)
+ tys1 <- repTys tys
+ repTapps tcon tys1
+repPred (HsIParam _ _) =
+ panic "DsMeta.repTy: Can't represent predicates with implicit parameters"
+
+-- yield the representation of a list of types
+--
repTys :: [HsType Name] -> DsM [Core M.Type]
repTys tys = mapM repTy tys
------------------
+-- represent a type
+--
repTy :: HsType Name -> DsM (Core M.Type)
+repTy (HsForAllTy bndrs ctxt ty) =
+ addTyVarBinds (fromMaybe [] bndrs) $ \bndrs' -> do
+ ctxt' <- repContext ctxt
+ ty' <- repTy ty
+ repTForall (coreList' stringTy bndrs') ctxt' ty'
repTy (HsTyVar n)
- | isTvOcc (nameOccName n) = do { tv1 <- localVar n ; repTvar tv1 }
- | otherwise = do { tc1 <- lookupOcc n; repNamedTyCon tc1 }
-repTy (HsAppTy f a) = do { f1 <- repTy f ; a1 <- repTy a ; repTapp f1 a1 }
-repTy (HsFunTy f a) = do { f1 <- repTy f ; a1 <- repTy a ;
- tcon <- repArrowTyCon ; repTapps tcon [f1,a1] }
-repTy (HsListTy t) = do { t1 <- repTy t ; tcon <- repListTyCon ; repTapp tcon t1 }
-repTy (HsTupleTy tc tys) = do { tys1 <- repTys tys;
- tcon <- repTupleTyCon (length tys);
- repTapps tcon tys1 }
+ | isTvOcc (nameOccName n) = do
+ tv1 <- lookupBinder n
+ repTvar tv1
+ | otherwise = do
+ tc1 <- lookupOcc n
+ repNamedTyCon tc1
+repTy (HsAppTy f a) = do
+ f1 <- repTy f
+ a1 <- repTy a
+ repTapp f1 a1
+repTy (HsFunTy f a) = do
+ f1 <- repTy f
+ a1 <- repTy a
+ tcon <- repArrowTyCon
+ repTapps tcon [f1, a1]
+repTy (HsListTy t) = do
+ t1 <- repTy t
+ tcon <- repListTyCon
+ repTapp tcon t1
+repTy (HsPArrTy t) = do
+ t1 <- repTy t
+ tcon <- repTy (HsTyVar parrTyConName)
+ repTapp tcon t1
+repTy (HsTupleTy tc tys) = do
+ tys1 <- repTys tys
+ tcon <- repTupleTyCon (length tys)
+ repTapps tcon tys1
repTy (HsOpTy ty1 HsArrow ty2) = repTy (HsFunTy ty1 ty2)
-repTy (HsOpTy ty1 (HsTyOp n) ty2) = repTy ((HsTyVar n `HsAppTy` ty1) `HsAppTy` ty2)
+repTy (HsOpTy ty1 (HsTyOp n) ty2) = repTy ((HsTyVar n `HsAppTy` ty1)
+ `HsAppTy` ty2)
repTy (HsParTy t) = repTy t
-repTy (HsPredTy (HsClassP c tys)) = repTy (foldl HsAppTy (HsTyVar c) tys)
+repTy (HsNumTy i) =
+ panic "DsMeta.repTy: Can't represent number types (for generics)"
+repTy (HsPredTy pred) = repPred pred
+repTy (HsKindSig ty kind) =
+ panic "DsMeta.repTy: Can't represent explicit kind signatures yet"
-repTy other_ty = pprPanic "repTy" (ppr other_ty) -- HsForAllTy, HsKindSig
-----------------------------------------------------------------------------
-- Expressions
repE (HsApp x y) = do {a <- repE x; b <- repE y; repApp a b}
repE (OpApp e1 op fix e2) =
- case op of
- HsVar op -> do { arg1 <- repE e1;
- arg2 <- repE e2;
- the_op <- lookupOcc op ;
- repInfixApp arg1 the_op arg2 }
- _ -> panic "DsMeta.repE: Operator is not a variable"
-repE (NegApp x nm) = repE x >>= repNeg
+ do { arg1 <- repE e1;
+ arg2 <- repE e2;
+ the_op <- repE op ;
+ repInfixApp arg1 the_op arg2 }
+repE (NegApp x nm) = do
+ a <- repE x
+ negateVar <- lookupOcc negateName >>= repVar
+ negateVar `repApp` a
repE (HsPar x) = repE x
repE (SectionL x y) = do { a <- repE x; b <- repE y; repSectionL a b }
repE (SectionR x y) = do { a <- repE x; b <- repE y; repSectionR a b }
repE (HsLet bs e) = do { (ss,ds) <- repBinds bs
; e2 <- addBinds ss (repE e)
; z <- repLetE ds e2
- ; wrapGenSyns expTyConName ss z }
+ ; wrapGenSyns ss z }
-- FIXME: I haven't got the types here right yet
-repE (HsDo ctxt sts _ ty loc)
- | isComprCtxt ctxt = do { (ss,zs) <- repSts sts;
- e <- repDoE (nonEmptyCoreList zs);
- wrapGenSyns expTyConName ss e }
- | otherwise =
- panic "DsMeta.repE: Can't represent mdo and [: :] yet"
- where
- isComprCtxt ListComp = True
- isComprCtxt DoExpr = True
- isComprCtxt _ = False
+repE (HsDo DoExpr sts _ ty loc)
+ = do { (ss,zs) <- repSts sts;
+ e <- repDoE (nonEmptyCoreList zs);
+ wrapGenSyns ss e }
+repE (HsDo ListComp sts _ ty loc)
+ = do { (ss,zs) <- repSts sts;
+ e <- repComp (nonEmptyCoreList zs);
+ wrapGenSyns ss e }
+repE (HsDo _ _ _ _ _) = panic "DsMeta.repE: Can't represent mdo and [: :] yet"
repE (ExplicitList ty es) = do { xs <- repEs es; repListExp xs }
repE (ExplicitPArr ty es) =
panic "DsMeta.repE: No explicit parallel arrays yet"
repE (ExplicitTuple es boxed)
| isBoxed boxed = do { xs <- repEs es; repTup xs }
| otherwise = panic "DsMeta.repE: Can't represent unboxed tuples"
-repE (RecordConOut _ _ _) = panic "DsMeta.repE: No record construction yet"
-repE (RecordUpdOut _ _ _ _) = panic "DsMeta.repE: No record update yet"
+repE (RecordCon c flds)
+ = do { x <- lookupOcc c;
+ fs <- repFields flds;
+ repRecCon x fs }
+repE (RecordUpd e flds)
+ = do { x <- repE e;
+ fs <- repFields flds;
+ repRecUpd x fs }
repE (ExprWithTySig e ty) = do { e1 <- repE e; t1 <- repTy ty; repSigExp e1 t1 }
repE (ArithSeqIn aseq) =
ds3 <- repE e3
repFromThenTo ds1 ds2 ds3
repE (PArrSeqOut _ aseq) = panic "DsMeta.repE: parallel array seq.s missing"
+repE (HsCoreAnn _ _) = panic "DsMeta.repE: Can't represent CoreAnn" -- hdaume: core annotations
repE (HsCCall _ _ _ _ _) = panic "DsMeta.repE: Can't represent __ccall__"
repE (HsSCC _ _) = panic "DsMeta.repE: Can't represent SCC"
repE (HsBracketOut _ _) =
; addBinds ss2 $ do {
; gs <- repGuards guards
; match <- repMatch p1 gs ds
- ; wrapGenSyns matTyConName (ss1++ss2) match }}}
+ ; wrapGenSyns (ss1++ss2) match }}}
repClauseTup :: Match Name -> DsM (Core M.Clse)
repClauseTup (Match ps ty (GRHSs guards wheres ty2)) =
; addBinds ss2 $ do {
gs <- repGuards guards
; clause <- repClause ps1 gs ds
- ; wrapGenSyns clsTyConName (ss1++ss2) clause }}}
+ ; wrapGenSyns (ss1++ss2) clause }}}
repGuards :: [GRHS Name] -> DsM (Core M.Rihs)
repGuards [GRHS [ResultStmt e loc] loc2]
= do { x <- repE e1; y <- repE e2; return (x, y) }
process other = panic "Non Haskell 98 guarded body"
+repFields :: [(Name,HsExpr Name)] -> DsM (Core [M.FldE])
+repFields flds = do
+ fnames <- mapM lookupOcc (map fst flds)
+ es <- mapM repE (map snd flds)
+ fs <- zipWithM (\n x -> rep2 fieldName [unC n, unC x]) fnames es
+ coreList fieldTyConName fs
+
-----------------------------------------------------------------------------
-- Representing Stmt's is tricky, especially if bound variables
; ss <- mkGenSyms bndrs
; lam <- addBinds ss (
do { xs <- repPs ps; body <- repE e; repLam xs body })
- ; wrapGenSyns expTyConName ss lam }
+ ; wrapGenSyns ss lam }
repLambda z = panic "Can't represent a guarded lambda in Template Haskell"
= do { con_str <- lookupOcc dc
; case details of
PrefixCon ps -> do { qs <- repPs ps; repPcon con_str qs }
- RecCon pairs -> error "No records in template haskell yet"
+ RecCon pairs -> do { vs <- sequence $ map lookupOcc (map fst pairs)
+ ; ps <- sequence $ map repP (map snd pairs)
+ ; fps <- zipWithM (\x y -> rep2 fieldPName [unC x,unC y]) vs ps
+ ; fps' <- coreList fieldPTyConName fps
+ ; repPrec con_str fps' }
InfixCon p1 p2 -> do { qs <- repPs [p1,p2]; repPcon con_str qs }
}
repP (NPatIn l (Just _)) = panic "Can't cope with negative overloaded patterns yet (repP (NPatIn _ (Just _)))"
----------------------------------------------------------
-- The meta-environment
+-- A name/identifier association for fresh names of locally bound entities
+--
type GenSymBind = (Name, Id) -- Gensym the string and bind it to the Id
-- I.e. (x, x_id) means
-- let x_id = gensym "x" in ...
-addBinds :: [GenSymBind] -> DsM a -> DsM a
-addBinds bs m = dsExtendMetaEnv (mkNameEnv [(n,Bound id) | (n,id) <- bs]) m
-
+-- Generate a fresh name for a locally bound entity
+--
mkGenSym :: Name -> DsM GenSymBind
mkGenSym nm = do { id <- newUniqueId nm stringTy; return (nm,id) }
+-- Ditto for a list of names
+--
mkGenSyms :: [Name] -> DsM [GenSymBind]
mkGenSyms ns = mapM mkGenSym ns
+-- Add a list of fresh names for locally bound entities to the meta
+-- environment (which is part of the state carried around by the desugarer
+-- monad)
+--
+addBinds :: [GenSymBind] -> DsM a -> DsM a
+addBinds bs m = dsExtendMetaEnv (mkNameEnv [(n,Bound id) | (n,id) <- bs]) m
+
+-- Look up a locally bound name
+--
lookupBinder :: Name -> DsM (Core String)
lookupBinder n
= do { mb_val <- dsLookupMetaEnv n;
Just (Bound x) -> return (coreVar x)
other -> pprPanic "Failed binder lookup:" (ppr n) }
+-- Look up a name that is either locally bound or a global name
+--
+-- * If it is a global name, generate the "original name" representation (ie,
+-- the <module>:<name> form) for the associated entity
+--
lookupOcc :: Name -> DsM (Core String)
-- Lookup an occurrence; it can't be a splice.
-- Use the in-scope bindings if they exist
-- bindQ (gensym nm2 (\ id2 ->
-- y))
-wrapGenSyns :: Name -- Name of the type (consructor) for 'a'
- -> [GenSymBind]
+wrapGenSyns :: [GenSymBind]
-> Core (M.Q a) -> DsM (Core (M.Q a))
-wrapGenSyns tc_name binds body@(MkC b)
- = do { elt_ty <- lookupType tc_name
- ; go elt_ty binds }
+wrapGenSyns binds body@(MkC b)
+ = go binds
where
- go elt_ty [] = return body
- go elt_ty ((name,id) : binds)
- = do { MkC body' <- go elt_ty binds
+ [elt_ty] = tcTyConAppArgs (exprType b)
+ -- b :: Q a, so we can get the type 'a' by looking at the
+ -- argument type. NB: this relies on Q being a data/newtype,
+ -- not a type synonym
+
+ go [] = return body
+ go ((name,id) : binds)
+ = do { MkC body' <- go binds
; lit_str <- localVar name
; gensym_app <- repGensym lit_str
; repBindQ stringTy elt_ty
repPcon :: Core String -> Core [M.Patt] -> DsM (Core M.Patt)
repPcon (MkC s) (MkC ps) = rep2 pconName [s, ps]
+repPrec :: Core String -> Core [(String,M.Patt)] -> DsM (Core M.Patt)
+repPrec (MkC c) (MkC rps) = rep2 precName [c,rps]
+
repPtilde :: Core M.Patt -> DsM (Core M.Patt)
repPtilde (MkC p) = rep2 ptildeName [p]
repSigExp :: Core M.Expr -> Core M.Type -> DsM (Core M.Expr)
repSigExp (MkC e) (MkC t) = rep2 sigExpName [e,t]
-repInfixApp :: Core M.Expr -> Core String -> Core M.Expr -> DsM (Core M.Expr)
-repInfixApp (MkC x) (MkC y) (MkC z) = rep2 infixAppName [x,y,z]
+repRecCon :: Core String -> Core [M.FldE]-> DsM (Core M.Expr)
+repRecCon (MkC c) (MkC fs) = rep2 recConName [c,fs]
-repNeg :: Core M.Expr -> DsM (Core M.Expr)
-repNeg (MkC x) = rep2 negName [x]
+repRecUpd :: Core M.Expr -> Core [M.FldE] -> DsM (Core M.Expr)
+repRecUpd (MkC e) (MkC fs) = rep2 recUpdName [e,fs]
+
+repInfixApp :: Core M.Expr -> Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
+repInfixApp (MkC x) (MkC y) (MkC z) = rep2 infixAppName [x,y,z]
repSectionL :: Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
-repSectionL (MkC x) (MkC y) = rep2 infixAppName [x,y]
+repSectionL (MkC x) (MkC y) = rep2 sectionLName [x,y]
repSectionR :: Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
-repSectionR (MkC x) (MkC y) = rep2 infixAppName [x,y]
+repSectionR (MkC x) (MkC y) = rep2 sectionRName [x,y]
------------ Right hand sides (guarded expressions) ----
repGuarded :: Core [(M.Expr, M.Expr)] -> DsM (Core M.Rihs)
repFun :: Core String -> Core [M.Clse] -> DsM (Core M.Decl)
repFun (MkC nm) (MkC b) = rep2 funName [nm, b]
-repData :: Core String -> Core [String] -> Core [M.Cons] -> Core [String] -> DsM (Core M.Decl)
-repData (MkC nm) (MkC tvs) (MkC cons) (MkC derivs) = rep2 dataDName [nm, tvs, cons, derivs]
+repData :: Core M.Ctxt -> Core String -> Core [String] -> Core [M.Cons] -> Core [String] -> DsM (Core M.Decl)
+repData (MkC cxt) (MkC nm) (MkC tvs) (MkC cons) (MkC derivs) = rep2 dataDName [cxt, nm, tvs, cons, derivs]
+
+repTySyn :: Core String -> Core [String] -> Core M.Type -> DsM (Core M.Decl)
+repTySyn (MkC nm) (MkC tvs) (MkC rhs) = rep2 tySynDName [nm, tvs, rhs]
repInst :: Core M.Ctxt -> Core M.Type -> Core [M.Decl] -> DsM (Core M.Decl)
repInst (MkC cxt) (MkC ty) (MkC ds) = rep2 instName [cxt, ty, ds]
repProto :: Core String -> Core M.Type -> DsM (Core M.Decl)
repProto (MkC s) (MkC ty) = rep2 protoName [s, ty]
-repConstr :: Core String -> Core [M.Type] -> DsM (Core M.Cons)
-repConstr (MkC con) (MkC tys) = rep2 constrName [con,tys]
+repCtxt :: Core [M.Type] -> DsM (Core M.Ctxt)
+repCtxt (MkC tys) = rep2 ctxtName [tys]
+
+repConstr :: Core String -> HsConDetails Name (BangType Name)
+ -> DsM (Core M.Cons)
+repConstr con (PrefixCon ps)
+ = do arg_tys <- mapM repBangTy ps
+ arg_tys1 <- coreList strTypeTyConName arg_tys
+ rep2 constrName [unC con, unC arg_tys1]
+repConstr con (RecCon ips)
+ = do arg_vs <- mapM lookupOcc (map fst ips)
+ arg_tys <- mapM repBangTy (map snd ips)
+ arg_vtys <- zipWithM (\x y -> rep2 varStrictTypeName [unC x, unC y])
+ arg_vs arg_tys
+ arg_vtys' <- coreList varStrTypeTyConName arg_vtys
+ rep2 recConstrName [unC con, unC arg_vtys']
+repConstr con (InfixCon st1 st2)
+ = do arg1 <- repBangTy st1
+ arg2 <- repBangTy st2
+ rep2 infixConstrName [unC arg1, unC con, unC arg2]
------------ Types -------------------
+repTForall :: Core [String] -> Core M.Ctxt -> Core M.Type -> DsM (Core M.Type)
+repTForall (MkC tvars) (MkC ctxt) (MkC ty) = rep2 tforallName [tvars, ctxt, ty]
+
repTvar :: Core String -> DsM (Core M.Type)
repTvar (MkC s) = rep2 tvarName [s]
= do { lit_expr <- dsLit lit; rep2 lit_name [lit_expr] }
where
lit_name = case lit of
- HsInt _ -> intLName
- HsChar _ -> charLName
- HsString _ -> stringLName
- HsRat _ _ -> rationalLName
- other -> uh_oh
+ HsInteger _ -> integerLName
+ HsChar _ -> charLName
+ HsString _ -> stringLName
+ HsRat _ _ -> rationalLName
+ other -> uh_oh
uh_oh = pprPanic "DsMeta.repLiteral: trying to represent exotic literal"
(ppr lit)
repOverloadedLiteral :: HsOverLit -> DsM (Core M.Lit)
-repOverloadedLiteral (HsIntegral i _) = repLiteral (HsInt i)
+repOverloadedLiteral (HsIntegral i _) = repLiteral (HsInteger i)
repOverloadedLiteral (HsFractional f _) = do { rat_ty <- lookupType rationalTyConName ;
repLiteral (HsRat f rat_ty) }
-- The type Rational will be in the environment, becuase
-- The names that are implicitly mentioned by ``bracket''
-- Should stay in sync with the import list of DsMeta
templateHaskellNames
- = mkNameSet [ intLName,charLName, stringLName, rationalLName,
+ = mkNameSet [ integerLName,charLName, stringLName, rationalLName,
plitName, pvarName, ptupName,
pconName, ptildeName, paspatName, pwildName,
varName, conName, litName, appName, infixEName, lamName,
tupName, doEName, compName,
listExpName, sigExpName, condName, letEName, caseEName,
- infixAppName, negName, sectionLName, sectionRName,
+ infixAppName, sectionLName, sectionRName,
guardedName, normalName,
bindStName, letStName, noBindStName, parStName,
fromName, fromThenName, fromToName, fromThenToName,
funName, valName, liftName,
gensymName, returnQName, bindQName, sequenceQName,
- matchName, clauseName, funName, valName, dataDName, classDName,
- instName, protoName, tvarName, tconName, tappName,
+ matchName, clauseName, funName, valName, tySynDName, dataDName, classDName,
+ instName, protoName, tforallName, tvarName, tconName, tappName,
arrowTyConName, tupleTyConName, listTyConName, namedTyConName,
- constrName,
+ ctxtName, constrName, recConstrName, infixConstrName,
exprTyConName, declTyConName, pattTyConName, mtchTyConName,
clseTyConName, stmtTyConName, consTyConName, typeTyConName,
+ strTypeTyConName, varStrTypeTyConName,
qTyConName, expTyConName, matTyConName, clsTyConName,
- decTyConName, typTyConName ]
+ decTyConName, typTyConName, strictTypeName, varStrictTypeName,
+ recConName, recUpdName, precName,
+ fieldName, fieldTyConName, fieldPName, fieldPTyConName,
+ strictName, nonstrictName ]
varQual = mk_known_key_name OccName.varName
mk_known_key_name space str uniq
= mkKnownKeyExternalName thModule (mkOccFS space str) uniq
-intLName = varQual FSLIT("intL") intLIdKey
+integerLName = varQual FSLIT("integerL") integerLIdKey
charLName = varQual FSLIT("charL") charLIdKey
stringLName = varQual FSLIT("stringL") stringLIdKey
rationalLName = varQual FSLIT("rationalL") rationalLIdKey
ptildeName = varQual FSLIT("ptilde") ptildeIdKey
paspatName = varQual FSLIT("paspat") paspatIdKey
pwildName = varQual FSLIT("pwild") pwildIdKey
+precName = varQual FSLIT("prec") precIdKey
varName = varQual FSLIT("var") varIdKey
conName = varQual FSLIT("con") conIdKey
litName = varQual FSLIT("lit") litIdKey
letEName = varQual FSLIT("letE") letEIdKey
caseEName = varQual FSLIT("caseE") caseEIdKey
infixAppName = varQual FSLIT("infixApp") infixAppIdKey
-negName = varQual FSLIT("neg") negIdKey
sectionLName = varQual FSLIT("sectionL") sectionLIdKey
sectionRName = varQual FSLIT("sectionR") sectionRIdKey
+recConName = varQual FSLIT("recCon") recConIdKey
+recUpdName = varQual FSLIT("recUpd") recUpdIdKey
guardedName = varQual FSLIT("guarded") guardedIdKey
normalName = varQual FSLIT("normal") normalIdKey
bindStName = varQual FSLIT("bindSt") bindStIdKey
funName = varQual FSLIT("fun") funIdKey
valName = varQual FSLIT("val") valIdKey
dataDName = varQual FSLIT("dataD") dataDIdKey
+tySynDName = varQual FSLIT("tySynD") tySynDIdKey
classDName = varQual FSLIT("classD") classDIdKey
instName = varQual FSLIT("inst") instIdKey
protoName = varQual FSLIT("proto") protoIdKey
-- data Typ = ...
+tforallName = varQual FSLIT("tforall") tforallIdKey
tvarName = varQual FSLIT("tvar") tvarIdKey
tconName = varQual FSLIT("tcon") tconIdKey
tappName = varQual FSLIT("tapp") tappIdKey
-- data Tag = ...
-arrowTyConName = varQual FSLIT("arrowTyCon") arrowIdKey
-tupleTyConName = varQual FSLIT("tupleTyCon") tupleIdKey
-listTyConName = varQual FSLIT("listTyCon") listIdKey
-namedTyConName = varQual FSLIT("namedTyCon") namedTyConIdKey
+arrowTyConName = varQual FSLIT("arrowTyCon") arrowIdKey
+tupleTyConName = varQual FSLIT("tupleTyCon") tupleIdKey
+listTyConName = varQual FSLIT("listTyCon") listIdKey
+namedTyConName = varQual FSLIT("namedTyCon") namedTyConIdKey
+
+-- type Ctxt = ...
+ctxtName = varQual FSLIT("ctxt") ctxtIdKey
-- data Con = ...
constrName = varQual FSLIT("constr") constrIdKey
+recConstrName = varQual FSLIT("recConstr") recConstrIdKey
+infixConstrName = varQual FSLIT("infixConstr") infixConstrIdKey
exprTyConName = tcQual FSLIT("Expr") exprTyConKey
declTyConName = tcQual FSLIT("Decl") declTyConKey
stmtTyConName = tcQual FSLIT("Stmt") stmtTyConKey
consTyConName = tcQual FSLIT("Cons") consTyConKey
typeTyConName = tcQual FSLIT("Type") typeTyConKey
-
+strTypeTyConName = tcQual FSLIT("StrType") strTypeTyConKey
+varStrTypeTyConName = tcQual FSLIT("VarStrType") varStrTypeTyConKey
+
+fieldTyConName = tcQual FSLIT("FldE") fieldTyConKey
+fieldPTyConName = tcQual FSLIT("FldP") fieldPTyConKey
+
qTyConName = tcQual FSLIT("Q") qTyConKey
expTyConName = tcQual FSLIT("Exp") expTyConKey
decTyConName = tcQual FSLIT("Dec") decTyConKey
matTyConName = tcQual FSLIT("Mat") matTyConKey
clsTyConName = tcQual FSLIT("Cls") clsTyConKey
+strictTypeName = varQual FSLIT("strictType") strictTypeKey
+varStrictTypeName = varQual FSLIT("varStrictType") varStrictTypeKey
+strictName = varQual FSLIT("strict") strictKey
+nonstrictName = varQual FSLIT("nonstrict") nonstrictKey
+
+fieldName = varQual FSLIT("field") fieldKey
+fieldPName = varQual FSLIT("fieldP") fieldPKey
+
-- TyConUniques available: 100-119
-- Check in PrelNames if you want to change this
typeTyConKey = mkPreludeTyConUnique 111
typTyConKey = mkPreludeTyConUnique 112
decTyConKey = mkPreludeTyConUnique 113
+varStrTypeTyConKey = mkPreludeTyConUnique 114
+strTypeTyConKey = mkPreludeTyConUnique 115
+fieldTyConKey = mkPreludeTyConUnique 116
+fieldPTyConKey = mkPreludeTyConUnique 117
protoIdKey = mkPreludeMiscIdUnique 210
matchIdKey = mkPreludeMiscIdUnique 211
clauseIdKey = mkPreludeMiscIdUnique 212
-intLIdKey = mkPreludeMiscIdUnique 213
+integerLIdKey = mkPreludeMiscIdUnique 213
charLIdKey = mkPreludeMiscIdUnique 214
classDIdKey = mkPreludeMiscIdUnique 215
dataDIdKey = mkPreludeMiscIdUnique 217
sequenceQIdKey = mkPreludeMiscIdUnique 218
+tySynDIdKey = mkPreludeMiscIdUnique 219
plitIdKey = mkPreludeMiscIdUnique 220
pvarIdKey = mkPreludeMiscIdUnique 221
letEIdKey = mkPreludeMiscIdUnique 239
caseEIdKey = mkPreludeMiscIdUnique 240
infixAppIdKey = mkPreludeMiscIdUnique 241
-negIdKey = mkPreludeMiscIdUnique 242
+-- 242 unallocated
sectionLIdKey = mkPreludeMiscIdUnique 243
sectionRIdKey = mkPreludeMiscIdUnique 244
guardedIdKey = mkPreludeMiscIdUnique 245
noBindStIdKey = mkPreludeMiscIdUnique 249
parStIdKey = mkPreludeMiscIdUnique 250
-tvarIdKey = mkPreludeMiscIdUnique 251
-tconIdKey = mkPreludeMiscIdUnique 252
-tappIdKey = mkPreludeMiscIdUnique 253
+tforallIdKey = mkPreludeMiscIdUnique 251
+tvarIdKey = mkPreludeMiscIdUnique 252
+tconIdKey = mkPreludeMiscIdUnique 253
+tappIdKey = mkPreludeMiscIdUnique 254
+
+arrowIdKey = mkPreludeMiscIdUnique 255
+tupleIdKey = mkPreludeMiscIdUnique 256
+listIdKey = mkPreludeMiscIdUnique 257
+namedTyConIdKey = mkPreludeMiscIdUnique 258
+
+ctxtIdKey = mkPreludeMiscIdUnique 259
+
+constrIdKey = mkPreludeMiscIdUnique 260
-arrowIdKey = mkPreludeMiscIdUnique 254
-tupleIdKey = mkPreludeMiscIdUnique 255
-listIdKey = mkPreludeMiscIdUnique 256
-namedTyConIdKey = mkPreludeMiscIdUnique 257
+stringLIdKey = mkPreludeMiscIdUnique 261
+rationalLIdKey = mkPreludeMiscIdUnique 262
-constrIdKey = mkPreludeMiscIdUnique 258
+sigExpIdKey = mkPreludeMiscIdUnique 263
-stringLIdKey = mkPreludeMiscIdUnique 259
-rationalLIdKey = mkPreludeMiscIdUnique 260
+strictTypeKey = mkPreludeMiscIdUnique 264
+strictKey = mkPreludeMiscIdUnique 265
+nonstrictKey = mkPreludeMiscIdUnique 266
+varStrictTypeKey = mkPreludeMiscIdUnique 267
-sigExpIdKey = mkPreludeMiscIdUnique 261
+recConstrIdKey = mkPreludeMiscIdUnique 268
+infixConstrIdKey = mkPreludeMiscIdUnique 269
+recConIdKey = mkPreludeMiscIdUnique 270
+recUpdIdKey = mkPreludeMiscIdUnique 271
+precIdKey = mkPreludeMiscIdUnique 272
+fieldKey = mkPreludeMiscIdUnique 273
+fieldPKey = mkPreludeMiscIdUnique 274
-- %************************************************************************
-- It is rather usatisfactory that we don't have a SrcLoc
addDsWarn :: SDoc -> DsM ()
-addDsWarn msg = dsWarn (noSrcLoc, msg)
\ No newline at end of file
+addDsWarn msg = dsWarn (noSrcLoc, msg)
projects / ghc-hetmet.git / blobdiff