1 -----------------------------------------------------------------------------
2 -- The purpose of this module is to transform an HsExpr into a CoreExpr which
3 -- when evaluated, returns a (Meta.Q Meta.Exp) computation analogous to the
4 -- input HsExpr. We do this in the DsM monad, which supplies access to
5 -- CoreExpr's of the "smart constructors" of the Meta.Exp datatype.
7 -- It also defines a bunch of knownKeyNames, in the same way as is done
8 -- in prelude/PrelNames. It's much more convenient to do it here, becuase
9 -- otherwise we have to recompile PrelNames whenever we add a Name, which is
10 -- a Royal Pain (triggers other recompilation).
11 -----------------------------------------------------------------------------
14 module DsMeta( dsBracket, dsReify,
15 templateHaskellNames, qTyConName,
16 liftName, exprTyConName, declTyConName,
17 decTyConName, typTyConName ) where
19 #include "HsVersions.h"
21 import {-# SOURCE #-} DsExpr ( dsExpr )
23 import DsUtils ( mkListExpr, mkStringLit, mkCoreTup,
24 mkIntExpr, mkCharExpr )
27 import qualified Language.Haskell.THSyntax as M
29 import HsSyn ( Pat(..), HsExpr(..), Stmt(..), HsLit(..), HsOverLit(..),
30 Match(..), GRHSs(..), GRHS(..), HsBracket(..),
31 HsStmtContext(ListComp,DoExpr), ArithSeqInfo(..),
32 HsBinds(..), MonoBinds(..), HsConDetails(..),
33 TyClDecl(..), HsGroup(..),
34 HsReify(..), ReifyFlavour(..),
35 HsType(..), HsContext(..), HsPred(..), HsTyOp(..),
36 HsTyVarBndr(..), Sig(..), ForeignDecl(..),
37 InstDecl(..), ConDecl(..), BangType(..),
38 PendingSplice, splitHsInstDeclTy,
39 placeHolderType, tyClDeclNames,
40 collectHsBinders, collectPatBinders, collectPatsBinders,
41 hsTyVarName, hsConArgs, getBangType,
45 import PrelNames ( mETA_META_Name, varQual, tcQual )
46 import MkIface ( ifaceTyThing )
47 import Name ( Name, nameOccName, nameModule )
48 import OccName ( isDataOcc, isTvOcc, occNameUserString )
49 import Module ( moduleUserString )
50 import Id ( Id, idType )
53 import Type ( Type, TyThing(..), mkGenTyConApp )
54 import TyCon ( DataConDetails(..) )
55 import TysWiredIn ( stringTy )
57 import CoreUtils ( exprType )
58 import SrcLoc ( noSrcLoc )
59 import Maybe ( catMaybes )
60 import Panic ( panic )
61 import Unique ( mkPreludeTyConUnique, mkPreludeMiscIdUnique )
62 import BasicTypes ( NewOrData(..), StrictnessMark(..) )
65 import FastString ( mkFastString )
67 -----------------------------------------------------------------------------
68 dsBracket :: HsBracket Name -> [PendingSplice] -> DsM CoreExpr
69 -- Returns a CoreExpr of type M.Expr
70 -- The quoted thing is parameterised over Name, even though it has
71 -- been type checked. We don't want all those type decorations!
73 dsBracket brack splices
74 = dsExtendMetaEnv new_bit (do_brack brack)
76 new_bit = mkNameEnv [(n, Splice e) | (n,e) <- splices]
78 do_brack (ExpBr e) = do { MkC e1 <- repE e ; return e1 }
79 do_brack (PatBr p) = do { MkC p1 <- repP p ; return p1 }
80 do_brack (TypBr t) = do { MkC t1 <- repTy t ; return t1 }
81 do_brack (DecBr ds) = do { MkC ds1 <- repTopDs ds ; return ds1 }
83 -----------------------------------------------------------------------------
84 dsReify :: HsReify Id -> DsM CoreExpr
85 -- Returns a CoreExpr of type reifyType --> M.Typ
86 -- reifyDecl --> M.Dec
87 -- reifyFixty --> M.Fix
88 dsReify (ReifyOut ReifyType name)
89 = do { thing <- dsLookupGlobal name ;
90 -- By deferring the lookup until now (rather than doing it
91 -- in the type checker) we ensure that all zonking has
94 AnId id -> do { MkC e <- repTy (toHsType (idType id)) ;
96 other -> pprPanic "dsReify: reifyType" (ppr name)
99 dsReify r@(ReifyOut ReifyDecl name)
100 = do { thing <- dsLookupGlobal name ;
101 mb_d <- repTyClD (ifaceTyThing thing) ;
103 Just (MkC d) -> return d
104 Nothing -> pprPanic "dsReify" (ppr r)
107 {- -------------- Examples --------------------
111 gensym (unpackString "x"#) `bindQ` \ x1::String ->
112 lam (pvar x1) (var x1)
115 [| \x -> $(f [| x |]) |]
117 gensym (unpackString "x"#) `bindQ` \ x1::String ->
118 lam (pvar x1) (f (var x1))
122 -------------------------------------------------------
124 -------------------------------------------------------
126 repTopDs :: HsGroup Name -> DsM (Core [M.Decl])
128 = do { let { bndrs = groupBinders group } ;
129 ss <- mkGenSyms bndrs ;
131 decls <- addBinds ss (do {
132 val_ds <- rep_binds (hs_valds group) ;
133 tycl_ds <- mapM repTyClD (hs_tyclds group) ;
134 inst_ds <- mapM repInstD (hs_instds group) ;
136 return (val_ds ++ catMaybes tycl_ds ++ inst_ds) }) ;
138 core_list <- coreList declTyConName decls ;
139 wrapNongenSyms ss core_list
140 -- Do *not* gensym top-level binders
143 groupBinders (HsGroup { hs_valds = val_decls, hs_tyclds = tycl_decls,
144 hs_fords = foreign_decls })
145 = collectHsBinders val_decls ++
146 [n | d <- tycl_decls, (n,_) <- tyClDeclNames d] ++
147 [n | ForeignImport n _ _ _ _ <- foreign_decls]
150 repTyClD :: TyClDecl Name -> DsM (Maybe (Core M.Decl))
152 repTyClD (TyData { tcdND = DataType, tcdCtxt = [],
153 tcdName = tc, tcdTyVars = tvs,
154 tcdCons = DataCons cons, tcdDerivs = mb_derivs })
155 = do { tc1 <- lookupBinder tc ;
157 cons1 <- mapM repC cons ;
158 cons2 <- coreList consTyConName cons1 ;
159 derivs1 <- repDerivs mb_derivs ;
160 dec <- repData tc1 tvs1 cons2 derivs1 ;
163 repTyClD (ClassDecl { tcdCtxt = cxt, tcdName = cls,
164 tcdTyVars = tvs, tcdFDs = [],
165 tcdSigs = sigs, tcdMeths = Just binds
167 = do { cls1 <- lookupBinder cls ;
169 cxt1 <- repCtxt cxt ;
170 sigs1 <- rep_sigs sigs ;
171 binds1 <- rep_monobind binds ;
172 decls1 <- coreList declTyConName (sigs1 ++ binds1) ;
173 dec <- repClass cxt1 cls1 tvs1 decls1 ;
177 repTyClD d = do { addDsWarn (hang msg 4 (ppr d)) ;
181 msg = ptext SLIT("Cannot desugar this Template Haskell declaration:")
183 repInstD (InstDecl ty binds _ _ loc)
184 -- Ignore user pragmas for now
185 = do { cxt1 <- repCtxt cxt ;
186 inst_ty1 <- repPred (HsClassP cls tys) ;
187 binds1 <- rep_monobind binds ;
188 decls1 <- coreList declTyConName binds1 ;
189 repInst cxt1 inst_ty1 decls1 }
191 (tvs, cxt, cls, tys) = splitHsInstDeclTy ty
194 -------------------------------------------------------
196 -------------------------------------------------------
198 repC :: ConDecl Name -> DsM (Core M.Cons)
199 repC (ConDecl con [] [] details loc)
200 = do { con1 <- lookupBinder con ;
201 arg_tys <- mapM (repBangTy con) (hsConArgs details) ;
202 arg_tys1 <- coreList typeTyConName arg_tys ;
203 repConstr con1 arg_tys1 }
205 repBangTy con (BangType NotMarkedStrict ty) = repTy ty
206 repBangTy con bty = do { addDsWarn msg ; repTy (getBangType bty) }
208 msg = ptext SLIT("Ignoring stricness on argument of constructor")
211 -------------------------------------------------------
213 -------------------------------------------------------
215 repDerivs :: Maybe (HsContext Name) -> DsM (Core [String])
216 repDerivs Nothing = return (coreList' stringTy [])
217 repDerivs (Just ctxt)
218 = do { strs <- mapM rep_deriv ctxt ;
219 return (coreList' stringTy strs) }
221 rep_deriv :: HsPred Name -> DsM (Core String)
222 -- Deriving clauses must have the simple H98 form
223 rep_deriv (HsClassP cls []) = lookupOcc cls
224 rep_deriv other = panic "rep_deriv"
227 -------------------------------------------------------
228 -- Signatures in a class decl, or a group of bindings
229 -------------------------------------------------------
231 rep_sigs :: [Sig Name] -> DsM [Core M.Decl]
232 -- We silently ignore ones we don't recognise
233 rep_sigs sigs = do { sigs1 <- mapM rep_sig sigs ;
234 return (concat sigs1) }
236 rep_sig :: Sig Name -> DsM [Core M.Decl]
238 -- Empty => Too hard, signature ignored
239 rep_sig (ClassOpSig nm _ ty _) = rep_proto nm ty
240 rep_sig (Sig nm ty _) = rep_proto nm ty
241 rep_sig other = return []
243 rep_proto nm ty = do { nm1 <- lookupBinder nm ;
245 sig <- repProto nm1 ty1 ;
249 -------------------------------------------------------
251 -------------------------------------------------------
253 repTvs :: [HsTyVarBndr Name] -> DsM (Core [String])
254 repTvs tvs = do { tvs1 <- mapM (localVar . hsTyVarName) tvs ;
255 return (coreList' stringTy tvs1) }
258 repCtxt :: HsContext Name -> DsM (Core M.Ctxt)
259 repCtxt ctxt = do { preds <- mapM repPred ctxt;
260 coreList typeTyConName preds }
263 repPred :: HsPred Name -> DsM (Core M.Type)
264 repPred (HsClassP cls tys)
265 = do { tc1 <- lookupOcc cls; tcon <- repNamedTyCon tc1;
266 tys1 <- repTys tys; repTapps tcon tys1 }
267 repPred (HsIParam _ _) = panic "No implicit parameters yet"
270 repTys :: [HsType Name] -> DsM [Core M.Type]
271 repTys tys = mapM repTy tys
274 repTy :: HsType Name -> DsM (Core M.Type)
277 | isTvOcc (nameOccName n) = do { tv1 <- localVar n ; repTvar tv1 }
278 | otherwise = do { tc1 <- lookupOcc n; repNamedTyCon tc1 }
279 repTy (HsAppTy f a) = do { f1 <- repTy f ; a1 <- repTy a ; repTapp f1 a1 }
280 repTy (HsFunTy f a) = do { f1 <- repTy f ; a1 <- repTy a ;
281 tcon <- repArrowTyCon ; repTapps tcon [f1,a1] }
282 repTy (HsListTy t) = do { t1 <- repTy t ; tcon <- repListTyCon ; repTapp tcon t1 }
283 repTy (HsTupleTy tc tys) = do { tys1 <- repTys tys;
284 tcon <- repTupleTyCon (length tys);
286 repTy (HsOpTy ty1 HsArrow ty2) = repTy (HsFunTy ty1 ty2)
287 repTy (HsOpTy ty1 (HsTyOp n) ty2) = repTy ((HsTyVar n `HsAppTy` ty1) `HsAppTy` ty2)
288 repTy (HsParTy t) = repTy t
289 repTy (HsPredTy (HsClassP c tys)) = repTy (foldl HsAppTy (HsTyVar c) tys)
291 repTy other_ty = pprPanic "repTy" (ppr other_ty) -- HsForAllTy, HsKindSig
293 -----------------------------------------------------------------------------
295 -----------------------------------------------------------------------------
297 repEs :: [HsExpr Name] -> DsM (Core [M.Expr])
298 repEs es = do { es' <- mapM repE es ;
299 coreList exprTyConName es' }
301 repE :: HsExpr Name -> DsM (Core M.Expr)
303 = do { mb_val <- dsLookupMetaEnv x
305 Nothing -> do { str <- globalVar x
306 ; repVarOrCon x str }
307 Just (Bound y) -> repVarOrCon x (coreVar y)
308 Just (Splice e) -> do { e' <- dsExpr e
309 ; return (MkC e') } }
311 repE (HsIPVar x) = panic "Can't represent implicit parameters"
312 repE (HsLit l) = do { a <- repLiteral l; repLit a }
313 repE (HsOverLit l) = do { a <- repOverloadedLiteral l; repLit a }
315 repE (HsSplice n e loc)
316 = do { mb_val <- dsLookupMetaEnv n
318 Just (Splice e) -> do { e' <- dsExpr e
320 other -> pprPanic "HsSplice" (ppr n) }
323 repE (HsLam m) = repLambda m
324 repE (HsApp x y) = do {a <- repE x; b <- repE y; repApp a b}
325 repE (NegApp x nm) = panic "No negate yet"
326 repE (SectionL x y) = do { a <- repE x; b <- repE y; repSectionL a b }
327 repE (SectionR x y) = do { a <- repE x; b <- repE y; repSectionR a b }
329 repE (OpApp e1 (HsVar op) fix e2)
330 = do { arg1 <- repE e1;
332 the_op <- lookupOcc op ;
333 repInfixApp arg1 the_op arg2 }
335 repE (HsCase e ms loc)
337 ; ms2 <- mapM repMatchTup ms
338 ; repCaseE arg (nonEmptyCoreList ms2) }
340 -- I havn't got the types here right yet
341 repE (HsDo DoExpr sts _ ty loc) = do { (ss,zs) <- repSts sts;
342 e <- repDoE (nonEmptyCoreList zs);
343 wrapGenSyns expTyConName ss e }
344 repE (HsDo ListComp sts _ ty loc) = do { (ss,zs) <- repSts sts;
345 e <- repComp (nonEmptyCoreList zs);
346 wrapGenSyns expTyConName ss e }
348 repE (ArithSeqIn (From e)) = do { ds1 <- repE e; repFrom ds1 }
349 repE (ArithSeqIn (FromThen e1 e2)) = do { ds1 <- repE e1; ds2 <- repE e2;
350 repFromThen ds1 ds2 }
351 repE (ArithSeqIn (FromTo e1 e2)) = do { ds1 <- repE e1; ds2 <- repE e2;
353 repE (ArithSeqIn (FromThenTo e1 e2 e3)) = do { ds1 <- repE e1; ds2 <- repE e2;
354 ds3 <- repE e3; repFromThenTo ds1 ds2 ds3 }
356 repE (HsIf x y z loc) = do { a <- repE x; b <- repE y; c <- repE z; repCond a b c }
358 repE (HsLet bs e) = do { (ss,ds) <- repBinds bs
359 ; e2 <- addBinds ss (repE e)
361 ; wrapGenSyns expTyConName ss z }
362 repE (ExplicitList ty es) = do { xs <- repEs es; repListExp xs }
363 repE (ExplicitTuple es boxed) = do { xs <- repEs es; repTup xs }
365 repE (HsWith _ _ _) = panic "No with for implicit parameters yet"
366 repE (ExplicitPArr ty es) = panic "No parallel arrays yet"
367 repE (RecordConOut _ _ _) = panic "No record construction yet"
368 repE (RecordUpdOut _ _ _ _) = panic "No record update yet"
369 repE (ExprWithTySig e ty) = panic "No expressions with type signatures yet"
372 -----------------------------------------------------------------------------
373 -- Building representations of auxillary structures like Match, Clause, Stmt,
375 repMatchTup :: Match Name -> DsM (Core M.Mtch)
376 repMatchTup (Match [p] ty (GRHSs guards wheres ty2)) =
377 do { ss1 <- mkGenSyms (collectPatBinders p)
378 ; addBinds ss1 $ do {
380 ; (ss2,ds) <- repBinds wheres
381 ; addBinds ss2 $ do {
382 ; gs <- repGuards guards
383 ; match <- repMatch p1 gs ds
384 ; wrapGenSyns matTyConName (ss1++ss2) match }}}
386 repClauseTup :: Match Name -> DsM (Core M.Clse)
387 repClauseTup (Match ps ty (GRHSs guards wheres ty2)) =
388 do { ss1 <- mkGenSyms (collectPatsBinders ps)
389 ; addBinds ss1 $ do {
391 ; (ss2,ds) <- repBinds wheres
392 ; addBinds ss2 $ do {
393 gs <- repGuards guards
394 ; clause <- repClause ps1 gs ds
395 ; wrapGenSyns clsTyConName (ss1++ss2) clause }}}
397 repGuards :: [GRHS Name] -> DsM (Core M.Rihs)
398 repGuards [GRHS [ResultStmt e loc] loc2]
399 = do {a <- repE e; repNormal a }
401 = do { zs <- mapM process other;
402 repGuarded (nonEmptyCoreList (map corePair zs)) }
404 process (GRHS [ExprStmt e1 ty loc,ResultStmt e2 _] _)
405 = do { x <- repE e1; y <- repE e2; return (x, y) }
406 process other = panic "Non Haskell 98 guarded body"
409 -----------------------------------------------------------------------------
410 -- Representing Stmt's is tricky, especially if bound variables
411 -- shaddow each other. Consider: [| do { x <- f 1; x <- f x; g x } |]
412 -- First gensym new names for every variable in any of the patterns.
413 -- both static (x'1 and x'2), and dynamic ((gensym "x") and (gensym "y"))
414 -- if variables didn't shaddow, the static gensym wouldn't be necessary
415 -- and we could reuse the original names (x and x).
417 -- do { x'1 <- gensym "x"
418 -- ; x'2 <- gensym "x"
419 -- ; doE [ BindSt (pvar x'1) [| f 1 |]
420 -- , BindSt (pvar x'2) [| f x |]
421 -- , NoBindSt [| g x |]
425 -- The strategy is to translate a whole list of do-bindings by building a
426 -- bigger environment, and a bigger set of meta bindings
427 -- (like: x'1 <- gensym "x" ) and then combining these with the translations
428 -- of the expressions within the Do
430 -----------------------------------------------------------------------------
431 -- The helper function repSts computes the translation of each sub expression
432 -- and a bunch of prefix bindings denoting the dynamic renaming.
434 repSts :: [Stmt Name] -> DsM ([GenSymBind], [Core M.Stmt])
435 repSts [ResultStmt e loc] =
437 ; e1 <- repNoBindSt a
438 ; return ([], [e1]) }
439 repSts (BindStmt p e loc : ss) =
441 ; ss1 <- mkGenSyms (collectPatBinders p)
442 ; addBinds ss1 $ do {
444 ; (ss2,zs) <- repSts ss
445 ; z <- repBindSt p1 e2
446 ; return (ss1++ss2, z : zs) }}
447 repSts (LetStmt bs : ss) =
448 do { (ss1,ds) <- repBinds bs
450 ; (ss2,zs) <- addBinds ss1 (repSts ss)
451 ; return (ss1++ss2, z : zs) }
452 repSts (ExprStmt e ty loc : ss) =
454 ; z <- repNoBindSt e2
455 ; (ss2,zs) <- repSts ss
456 ; return (ss2, z : zs) }
457 repSts other = panic "Exotic Stmt in meta brackets"
460 -----------------------------------------------------------
462 -----------------------------------------------------------
464 repBinds :: HsBinds Name -> DsM ([GenSymBind], Core [M.Decl])
466 = do { let { bndrs = collectHsBinders decs } ;
467 ss <- mkGenSyms bndrs ;
468 core <- addBinds ss (rep_binds decs) ;
469 core_list <- coreList declTyConName core ;
470 return (ss, core_list) }
472 rep_binds :: HsBinds Name -> DsM [Core M.Decl]
473 rep_binds EmptyBinds = return []
474 rep_binds (ThenBinds x y)
475 = do { core1 <- rep_binds x
476 ; core2 <- rep_binds y
477 ; return (core1 ++ core2) }
478 rep_binds (MonoBind bs sigs _)
479 = do { core1 <- rep_monobind bs
480 ; core2 <- rep_sigs sigs
481 ; return (core1 ++ core2) }
483 rep_monobind :: MonoBinds Name -> DsM [Core M.Decl]
484 rep_monobind EmptyMonoBinds = return []
485 rep_monobind (AndMonoBinds x y) = do { x1 <- rep_monobind x;
486 y1 <- rep_monobind y;
489 -- Note GHC treats declarations of a variable (not a pattern)
490 -- e.g. x = g 5 as a Fun MonoBinds. This is indicated by a single match
491 -- with an empty list of patterns
492 rep_monobind (FunMonoBind fn infx [Match [] ty (GRHSs guards wheres ty2)] loc)
493 = do { (ss,wherecore) <- repBinds wheres
494 ; guardcore <- addBinds ss (repGuards guards)
495 ; fn' <- lookupBinder fn
497 ; ans <- repVal p guardcore wherecore
500 rep_monobind (FunMonoBind fn infx ms loc)
501 = do { ms1 <- mapM repClauseTup ms
502 ; fn' <- lookupBinder fn
503 ; ans <- repFun fn' (nonEmptyCoreList ms1)
506 rep_monobind (PatMonoBind pat (GRHSs guards wheres ty2) loc)
507 = do { patcore <- repP pat
508 ; (ss,wherecore) <- repBinds wheres
509 ; guardcore <- addBinds ss (repGuards guards)
510 ; ans <- repVal patcore guardcore wherecore
513 rep_monobind (VarMonoBind v e)
514 = do { v' <- lookupBinder v
517 ; patcore <- repPvar v'
518 ; empty_decls <- coreList declTyConName []
519 ; ans <- repVal patcore x empty_decls
522 -----------------------------------------------------------------------------
523 -- Since everything in a MonoBind is mutually recursive we need rename all
524 -- all the variables simultaneously. For example:
525 -- [| AndMonoBinds (f x = x + g 2) (g x = f 1 + 2) |] would translate to
526 -- do { f'1 <- gensym "f"
527 -- ; g'2 <- gensym "g"
528 -- ; [ do { x'3 <- gensym "x"; fun f'1 [pvar x'3] [| x + g2 |]},
529 -- do { x'4 <- gensym "x"; fun g'2 [pvar x'4] [| f 1 + 2 |]}
531 -- This requires collecting the bindings (f'1 <- gensym "f"), and the
532 -- environment ( f |-> f'1 ) from each binding, and then unioning them
533 -- together. As we do this we collect GenSymBinds's which represent the renamed
534 -- variables bound by the Bindings. In order not to lose track of these
535 -- representations we build a shadow datatype MB with the same structure as
536 -- MonoBinds, but which has slots for the representations
539 -----------------------------------------------------------------------------
540 -- GHC allows a more general form of lambda abstraction than specified
541 -- by Haskell 98. In particular it allows guarded lambda's like :
542 -- (\ x | even x -> 0 | odd x -> 1) at the moment we can't represent this in
543 -- Haskell Template's Meta.Exp type so we punt if it isn't a simple thing like
544 -- (\ p1 .. pn -> exp) by causing an error.
546 repLambda :: Match Name -> DsM (Core M.Expr)
547 repLambda (Match ps _ (GRHSs [GRHS [ResultStmt e _ ] _ ]
549 = do { let bndrs = collectPatsBinders ps ;
550 ; ss <- mkGenSyms bndrs
551 ; lam <- addBinds ss (
552 do { xs <- repPs ps; body <- repE e; repLam xs body })
553 ; wrapGenSyns expTyConName ss lam }
555 repLambda z = panic "Can't represent a guarded lambda in Template Haskell"
558 -----------------------------------------------------------------------------
560 -- repP deals with patterns. It assumes that we have already
561 -- walked over the pattern(s) once to collect the binders, and
562 -- have extended the environment. So every pattern-bound
563 -- variable should already appear in the environment.
565 -- Process a list of patterns
566 repPs :: [Pat Name] -> DsM (Core [M.Patt])
567 repPs ps = do { ps' <- mapM repP ps ;
568 coreList pattTyConName ps' }
570 repP :: Pat Name -> DsM (Core M.Patt)
571 repP (WildPat _) = repPwild
572 repP (LitPat l) = do { l2 <- repLiteral l; repPlit l2 }
573 repP (VarPat x) = do { x' <- lookupBinder x; repPvar x' }
574 repP (LazyPat p) = do { p1 <- repP p; repPtilde p1 }
575 repP (AsPat x p) = do { x' <- lookupBinder x; p1 <- repP p; repPaspat x' p1 }
576 repP (ParPat p) = repP p
577 repP (ListPat ps _) = repListPat ps
578 repP (TuplePat ps _) = do { qs <- repPs ps; repPtup qs }
579 repP (ConPatIn dc details)
580 = do { con_str <- lookupOcc dc
582 PrefixCon ps -> do { qs <- repPs ps; repPcon con_str qs }
583 RecCon pairs -> error "No records in template haskell yet"
584 InfixCon p1 p2 -> do { qs <- repPs [p1,p2]; repPcon con_str qs }
586 repP other = panic "Exotic pattern inside meta brackets"
588 repListPat :: [Pat Name] -> DsM (Core M.Patt)
589 repListPat [] = do { nil_con <- coreStringLit "[]"
590 ; nil_args <- coreList pattTyConName []
591 ; repPcon nil_con nil_args }
592 repListPat (p:ps) = do { p2 <- repP p
593 ; ps2 <- repListPat ps
594 ; cons_con <- coreStringLit ":"
595 ; repPcon cons_con (nonEmptyCoreList [p2,ps2]) }
598 ----------------------------------------------------------
599 -- The meta-environment
601 type GenSymBind = (Name, Id) -- Gensym the string and bind it to the Id
602 -- I.e. (x, x_id) means
603 -- let x_id = gensym "x" in ...
605 addBinds :: [GenSymBind] -> DsM a -> DsM a
606 addBinds bs m = dsExtendMetaEnv (mkNameEnv [(n,Bound id) | (n,id) <- bs]) m
608 lookupBinder :: Name -> DsM (Core String)
610 = do { mb_val <- dsLookupMetaEnv n;
612 Just (Bound id) -> return (MkC (Var id))
613 other -> pprPanic "Failed binder lookup:" (ppr n) }
615 mkGenSym :: Name -> DsM GenSymBind
616 mkGenSym nm = do { id <- newUniqueId nm stringTy; return (nm,id) }
618 mkGenSyms :: [Name] -> DsM [GenSymBind]
619 mkGenSyms ns = mapM mkGenSym ns
621 lookupType :: Name -- Name of type constructor (e.g. M.Expr)
622 -> DsM Type -- The type
623 lookupType tc_name = do { tc <- dsLookupTyCon tc_name ;
624 return (mkGenTyConApp tc []) }
626 -- wrapGenSyns [(nm1,id1), (nm2,id2)] y
627 -- --> bindQ (gensym nm1) (\ id1 ->
628 -- bindQ (gensym nm2 (\ id2 ->
631 wrapGenSyns :: Name -- Name of the type (consructor) for 'a'
633 -> Core (M.Q a) -> DsM (Core (M.Q a))
634 wrapGenSyns tc_name binds body@(MkC b)
635 = do { elt_ty <- lookupType tc_name
638 go elt_ty [] = return body
639 go elt_ty ((name,id) : binds)
640 = do { MkC body' <- go elt_ty binds
641 ; lit_str <- localVar name
642 ; gensym_app <- repGensym lit_str
643 ; repBindQ stringTy elt_ty
644 gensym_app (MkC (Lam id body')) }
646 -- Just like wrapGenSym, but don't actually do the gensym
647 -- Instead use the existing name
648 -- Only used for [Decl]
649 wrapNongenSyms :: [GenSymBind]
650 -> Core [M.Decl] -> DsM (Core [M.Decl])
651 wrapNongenSyms binds body@(MkC b)
655 go ((name,id) : binds)
656 = do { MkC body' <- go binds
657 ; MkC lit_str <- localVar name -- No gensym
658 ; return (MkC (Let (NonRec id lit_str) body'))
661 void = placeHolderType
663 string :: String -> HsExpr Id
664 string s = HsLit (HsString (mkFastString s))
667 -- %*********************************************************************
671 -- %*********************************************************************
673 -----------------------------------------------------------------------------
674 -- PHANTOM TYPES for consistency. In order to make sure we do this correct
675 -- we invent a new datatype which uses phantom types.
677 newtype Core a = MkC CoreExpr
680 rep2 :: Name -> [ CoreExpr ] -> DsM (Core a)
681 rep2 n xs = do { id <- dsLookupGlobalId n
682 ; return (MkC (foldl App (Var id) xs)) }
684 -- Then we make "repConstructors" which use the phantom types for each of the
685 -- smart constructors of the Meta.Meta datatypes.
688 -- %*********************************************************************
690 -- The 'smart constructors'
692 -- %*********************************************************************
694 --------------- Patterns -----------------
695 repPlit :: Core M.Lit -> DsM (Core M.Patt)
696 repPlit (MkC l) = rep2 plitName [l]
698 repPvar :: Core String -> DsM (Core M.Patt)
699 repPvar (MkC s) = rep2 pvarName [s]
701 repPtup :: Core [M.Patt] -> DsM (Core M.Patt)
702 repPtup (MkC ps) = rep2 ptupName [ps]
704 repPcon :: Core String -> Core [M.Patt] -> DsM (Core M.Patt)
705 repPcon (MkC s) (MkC ps) = rep2 pconName [s, ps]
707 repPtilde :: Core M.Patt -> DsM (Core M.Patt)
708 repPtilde (MkC p) = rep2 ptildeName [p]
710 repPaspat :: Core String -> Core M.Patt -> DsM (Core M.Patt)
711 repPaspat (MkC s) (MkC p) = rep2 paspatName [s, p]
713 repPwild :: DsM (Core M.Patt)
714 repPwild = rep2 pwildName []
716 --------------- Expressions -----------------
717 repVarOrCon :: Name -> Core String -> DsM (Core M.Expr)
718 repVarOrCon vc str | isDataOcc (nameOccName vc) = repCon str
719 | otherwise = repVar str
721 repVar :: Core String -> DsM (Core M.Expr)
722 repVar (MkC s) = rep2 varName [s]
724 repCon :: Core String -> DsM (Core M.Expr)
725 repCon (MkC s) = rep2 conName [s]
727 repLit :: Core M.Lit -> DsM (Core M.Expr)
728 repLit (MkC c) = rep2 litName [c]
730 repApp :: Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
731 repApp (MkC x) (MkC y) = rep2 appName [x,y]
733 repLam :: Core [M.Patt] -> Core M.Expr -> DsM (Core M.Expr)
734 repLam (MkC ps) (MkC e) = rep2 lamName [ps, e]
736 repTup :: Core [M.Expr] -> DsM (Core M.Expr)
737 repTup (MkC es) = rep2 tupName [es]
739 repCond :: Core M.Expr -> Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
740 repCond (MkC x) (MkC y) (MkC z) = rep2 condName [x,y,z]
742 repLetE :: Core [M.Decl] -> Core M.Expr -> DsM (Core M.Expr)
743 repLetE (MkC ds) (MkC e) = rep2 letEName [ds, e]
745 repCaseE :: Core M.Expr -> Core [M.Mtch] -> DsM( Core M.Expr)
746 repCaseE (MkC e) (MkC ms) = rep2 caseEName [e, ms]
748 repDoE :: Core [M.Stmt] -> DsM (Core M.Expr)
749 repDoE (MkC ss) = rep2 doEName [ss]
751 repComp :: Core [M.Stmt] -> DsM (Core M.Expr)
752 repComp (MkC ss) = rep2 compName [ss]
754 repListExp :: Core [M.Expr] -> DsM (Core M.Expr)
755 repListExp (MkC es) = rep2 listExpName [es]
757 repInfixApp :: Core M.Expr -> Core String -> Core M.Expr -> DsM (Core M.Expr)
758 repInfixApp (MkC x) (MkC y) (MkC z) = rep2 infixAppName [x,y,z]
760 repSectionL :: Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
761 repSectionL (MkC x) (MkC y) = rep2 infixAppName [x,y]
763 repSectionR :: Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
764 repSectionR (MkC x) (MkC y) = rep2 infixAppName [x,y]
766 ------------ Right hand sides (guarded expressions) ----
767 repGuarded :: Core [(M.Expr, M.Expr)] -> DsM (Core M.Rihs)
768 repGuarded (MkC pairs) = rep2 guardedName [pairs]
770 repNormal :: Core M.Expr -> DsM (Core M.Rihs)
771 repNormal (MkC e) = rep2 normalName [e]
773 ------------- Statements -------------------
774 repBindSt :: Core M.Patt -> Core M.Expr -> DsM (Core M.Stmt)
775 repBindSt (MkC p) (MkC e) = rep2 bindStName [p,e]
777 repLetSt :: Core [M.Decl] -> DsM (Core M.Stmt)
778 repLetSt (MkC ds) = rep2 letStName [ds]
780 repNoBindSt :: Core M.Expr -> DsM (Core M.Stmt)
781 repNoBindSt (MkC e) = rep2 noBindStName [e]
783 -------------- DotDot (Arithmetic sequences) -----------
784 repFrom :: Core M.Expr -> DsM (Core M.Expr)
785 repFrom (MkC x) = rep2 fromName [x]
787 repFromThen :: Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
788 repFromThen (MkC x) (MkC y) = rep2 fromThenName [x,y]
790 repFromTo :: Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
791 repFromTo (MkC x) (MkC y) = rep2 fromToName [x,y]
793 repFromThenTo :: Core M.Expr -> Core M.Expr -> Core M.Expr -> DsM (Core M.Expr)
794 repFromThenTo (MkC x) (MkC y) (MkC z) = rep2 fromThenToName [x,y,z]
796 ------------ Match and Clause Tuples -----------
797 repMatch :: Core M.Patt -> Core M.Rihs -> Core [M.Decl] -> DsM (Core M.Mtch)
798 repMatch (MkC p) (MkC bod) (MkC ds) = rep2 matchName [p, bod, ds]
800 repClause :: Core [M.Patt] -> Core M.Rihs -> Core [M.Decl] -> DsM (Core M.Clse)
801 repClause (MkC ps) (MkC bod) (MkC ds) = rep2 clauseName [ps, bod, ds]
803 -------------- Dec -----------------------------
804 repVal :: Core M.Patt -> Core M.Rihs -> Core [M.Decl] -> DsM (Core M.Decl)
805 repVal (MkC p) (MkC b) (MkC ds) = rep2 valName [p, b, ds]
807 repFun :: Core String -> Core [M.Clse] -> DsM (Core M.Decl)
808 repFun (MkC nm) (MkC b) = rep2 funName [nm, b]
810 repData :: Core String -> Core [String] -> Core [M.Cons] -> Core [String] -> DsM (Core M.Decl)
811 repData (MkC nm) (MkC tvs) (MkC cons) (MkC derivs) = rep2 dataDName [nm, tvs, cons, derivs]
813 repInst :: Core M.Ctxt -> Core M.Type -> Core [M.Decl] -> DsM (Core M.Decl)
814 repInst (MkC cxt) (MkC ty) (MkC ds) = rep2 instName [cxt, ty, ds]
816 repClass :: Core M.Ctxt -> Core String -> Core [String] -> Core [M.Decl] -> DsM (Core M.Decl)
817 repClass (MkC cxt) (MkC cls) (MkC tvs) (MkC ds) = rep2 classDName [cxt, cls, tvs, ds]
819 repProto :: Core String -> Core M.Type -> DsM (Core M.Decl)
820 repProto (MkC s) (MkC ty) = rep2 protoName [s, ty]
822 repConstr :: Core String -> Core [M.Type] -> DsM (Core M.Cons)
823 repConstr (MkC con) (MkC tys) = rep2 constrName [con,tys]
825 ------------ Types -------------------
827 repTvar :: Core String -> DsM (Core M.Type)
828 repTvar (MkC s) = rep2 tvarName [s]
830 repTapp :: Core M.Type -> Core M.Type -> DsM (Core M.Type)
831 repTapp (MkC t1) (MkC t2) = rep2 tappName [t1,t2]
833 repTapps :: Core M.Type -> [Core M.Type] -> DsM (Core M.Type)
834 repTapps f [] = return f
835 repTapps f (t:ts) = do { f1 <- repTapp f t; repTapps f1 ts }
837 --------- Type constructors --------------
839 repNamedTyCon :: Core String -> DsM (Core M.Type)
840 repNamedTyCon (MkC s) = rep2 namedTyConName [s]
842 repTupleTyCon :: Int -> DsM (Core M.Type)
843 -- Note: not Core Int; it's easier to be direct here
844 repTupleTyCon i = rep2 tupleTyConName [mkIntExpr (fromIntegral i)]
846 repArrowTyCon :: DsM (Core M.Type)
847 repArrowTyCon = rep2 arrowTyConName []
849 repListTyCon :: DsM (Core M.Type)
850 repListTyCon = rep2 listTyConName []
853 ----------------------------------------------------------
856 repLiteral :: HsLit -> DsM (Core M.Lit)
857 repLiteral (HsInt i) = rep2 intLName [mkIntExpr i]
858 repLiteral (HsChar c) = rep2 charLName [mkCharExpr c]
859 repLiteral x = panic "trying to represent exotic literal"
861 repOverloadedLiteral :: HsOverLit -> DsM(Core M.Lit)
862 repOverloadedLiteral (HsIntegral i _) = rep2 intLName [mkIntExpr i]
863 repOverloadedLiteral (HsFractional f _) = panic "Cant do fractional literals yet"
866 --------------- Miscellaneous -------------------
868 repLift :: Core e -> DsM (Core M.Expr)
869 repLift (MkC x) = rep2 liftName [x]
871 repGensym :: Core String -> DsM (Core (M.Q String))
872 repGensym (MkC lit_str) = rep2 gensymName [lit_str]
874 repBindQ :: Type -> Type -- a and b
875 -> Core (M.Q a) -> Core (a -> M.Q b) -> DsM (Core (M.Q b))
876 repBindQ ty_a ty_b (MkC x) (MkC y)
877 = rep2 bindQName [Type ty_a, Type ty_b, x, y]
879 ------------ Lists and Tuples -------------------
880 -- turn a list of patterns into a single pattern matching a list
882 coreList :: Name -- Of the TyCon of the element type
883 -> [Core a] -> DsM (Core [a])
885 = do { elt_ty <- lookupType tc_name; return (coreList' elt_ty es) }
887 coreList' :: Type -- The element type
888 -> [Core a] -> Core [a]
889 coreList' elt_ty es = MkC (mkListExpr elt_ty (map unC es ))
891 nonEmptyCoreList :: [Core a] -> Core [a]
892 -- The list must be non-empty so we can get the element type
893 -- Otherwise use coreList
894 nonEmptyCoreList [] = panic "coreList: empty argument"
895 nonEmptyCoreList xs@(MkC x:_) = MkC (mkListExpr (exprType x) (map unC xs))
897 corePair :: (Core a, Core b) -> Core (a,b)
898 corePair (MkC x, MkC y) = MkC (mkCoreTup [x,y])
900 lookupOcc :: Name -> DsM (Core String)
901 -- Lookup an occurrence; it can't be a splice.
902 -- Use the in-scope bindings if they exist
904 = do { mb_val <- dsLookupMetaEnv n ;
906 Nothing -> globalVar n
907 Just (Bound x) -> return (coreVar x)
908 other -> pprPanic "repE:lookupOcc" (ppr n)
911 globalVar :: Name -> DsM (Core String)
912 globalVar n = coreStringLit (name_mod ++ ":" ++ name_occ)
914 name_mod = moduleUserString (nameModule n)
915 name_occ = occNameUserString (nameOccName n)
917 localVar :: Name -> DsM (Core String)
918 localVar n = coreStringLit (occNameUserString (nameOccName n))
920 coreStringLit :: String -> DsM (Core String)
921 coreStringLit s = do { z <- mkStringLit s; return(MkC z) }
923 coreVar :: Id -> Core String -- The Id has type String
924 coreVar id = MkC (Var id)
928 -- %************************************************************************
930 -- The known-key names for Template Haskell
932 -- %************************************************************************
934 -- To add a name, do three things
938 -- 3) Add the name to knownKeyNames
940 templateHaskellNames :: NameSet
941 -- The names that are implicitly mentioned by ``bracket''
942 -- Should stay in sync with the import list of DsMeta
944 = mkNameSet [ intLName,charLName, plitName, pvarName, ptupName,
945 pconName, ptildeName, paspatName, pwildName,
946 varName, conName, litName, appName, infixEName, lamName,
947 tupName, doEName, compName,
948 listExpName, condName, letEName, caseEName,
949 infixAppName, sectionLName, sectionRName, guardedName, normalName,
950 bindStName, letStName, noBindStName, parStName,
951 fromName, fromThenName, fromToName, fromThenToName,
952 funName, valName, liftName,
953 gensymName, returnQName, bindQName,
954 matchName, clauseName, funName, valName, dataDName, classDName,
955 instName, protoName, tvarName, tconName, tappName,
956 arrowTyConName, tupleTyConName, listTyConName, namedTyConName,
958 exprTyConName, declTyConName, pattTyConName, mtchTyConName,
959 clseTyConName, stmtTyConName, consTyConName, typeTyConName,
960 qTyConName, expTyConName, matTyConName, clsTyConName,
961 decTyConName, typTyConName ]
965 intLName = varQual mETA_META_Name FSLIT("intL") intLIdKey
966 charLName = varQual mETA_META_Name FSLIT("charL") charLIdKey
967 plitName = varQual mETA_META_Name FSLIT("plit") plitIdKey
968 pvarName = varQual mETA_META_Name FSLIT("pvar") pvarIdKey
969 ptupName = varQual mETA_META_Name FSLIT("ptup") ptupIdKey
970 pconName = varQual mETA_META_Name FSLIT("pcon") pconIdKey
971 ptildeName = varQual mETA_META_Name FSLIT("ptilde") ptildeIdKey
972 paspatName = varQual mETA_META_Name FSLIT("paspat") paspatIdKey
973 pwildName = varQual mETA_META_Name FSLIT("pwild") pwildIdKey
974 varName = varQual mETA_META_Name FSLIT("var") varIdKey
975 conName = varQual mETA_META_Name FSLIT("con") conIdKey
976 litName = varQual mETA_META_Name FSLIT("lit") litIdKey
977 appName = varQual mETA_META_Name FSLIT("app") appIdKey
978 infixEName = varQual mETA_META_Name FSLIT("infixE") infixEIdKey
979 lamName = varQual mETA_META_Name FSLIT("lam") lamIdKey
980 tupName = varQual mETA_META_Name FSLIT("tup") tupIdKey
981 doEName = varQual mETA_META_Name FSLIT("doE") doEIdKey
982 compName = varQual mETA_META_Name FSLIT("comp") compIdKey
983 listExpName = varQual mETA_META_Name FSLIT("listExp") listExpIdKey
984 condName = varQual mETA_META_Name FSLIT("cond") condIdKey
985 letEName = varQual mETA_META_Name FSLIT("letE") letEIdKey
986 caseEName = varQual mETA_META_Name FSLIT("caseE") caseEIdKey
987 infixAppName = varQual mETA_META_Name FSLIT("infixApp") infixAppIdKey
988 sectionLName = varQual mETA_META_Name FSLIT("sectionL") sectionLIdKey
989 sectionRName = varQual mETA_META_Name FSLIT("sectionR") sectionRIdKey
990 guardedName = varQual mETA_META_Name FSLIT("guarded") guardedIdKey
991 normalName = varQual mETA_META_Name FSLIT("normal") normalIdKey
992 bindStName = varQual mETA_META_Name FSLIT("bindSt") bindStIdKey
993 letStName = varQual mETA_META_Name FSLIT("letSt") letStIdKey
994 noBindStName = varQual mETA_META_Name FSLIT("noBindSt") noBindStIdKey
995 parStName = varQual mETA_META_Name FSLIT("parSt") parStIdKey
996 fromName = varQual mETA_META_Name FSLIT("from") fromIdKey
997 fromThenName = varQual mETA_META_Name FSLIT("fromThen") fromThenIdKey
998 fromToName = varQual mETA_META_Name FSLIT("fromTo") fromToIdKey
999 fromThenToName = varQual mETA_META_Name FSLIT("fromThenTo") fromThenToIdKey
1000 liftName = varQual mETA_META_Name FSLIT("lift") liftIdKey
1001 gensymName = varQual mETA_META_Name FSLIT("gensym") gensymIdKey
1002 returnQName = varQual mETA_META_Name FSLIT("returnQ") returnQIdKey
1003 bindQName = varQual mETA_META_Name FSLIT("bindQ") bindQIdKey
1006 matchName = varQual mETA_META_Name FSLIT("match") matchIdKey
1009 clauseName = varQual mETA_META_Name FSLIT("clause") clauseIdKey
1012 funName = varQual mETA_META_Name FSLIT("fun") funIdKey
1013 valName = varQual mETA_META_Name FSLIT("val") valIdKey
1014 dataDName = varQual mETA_META_Name FSLIT("dataD") dataDIdKey
1015 classDName = varQual mETA_META_Name FSLIT("classD") classDIdKey
1016 instName = varQual mETA_META_Name FSLIT("inst") instIdKey
1017 protoName = varQual mETA_META_Name FSLIT("proto") protoIdKey
1020 tvarName = varQual mETA_META_Name FSLIT("tvar") tvarIdKey
1021 tconName = varQual mETA_META_Name FSLIT("tcon") tconIdKey
1022 tappName = varQual mETA_META_Name FSLIT("tapp") tappIdKey
1025 arrowTyConName = varQual mETA_META_Name FSLIT("arrowTyCon") arrowIdKey
1026 tupleTyConName = varQual mETA_META_Name FSLIT("tupleTyCon") tupleIdKey
1027 listTyConName = varQual mETA_META_Name FSLIT("listTyCon") listIdKey
1028 namedTyConName = varQual mETA_META_Name FSLIT("namedTyCon") namedTyConIdKey
1031 constrName = varQual mETA_META_Name FSLIT("constr") constrIdKey
1033 exprTyConName = tcQual mETA_META_Name FSLIT("Expr") exprTyConKey
1034 declTyConName = tcQual mETA_META_Name FSLIT("Decl") declTyConKey
1035 pattTyConName = tcQual mETA_META_Name FSLIT("Patt") pattTyConKey
1036 mtchTyConName = tcQual mETA_META_Name FSLIT("Mtch") mtchTyConKey
1037 clseTyConName = tcQual mETA_META_Name FSLIT("Clse") clseTyConKey
1038 stmtTyConName = tcQual mETA_META_Name FSLIT("Stmt") stmtTyConKey
1039 consTyConName = tcQual mETA_META_Name FSLIT("Cons") consTyConKey
1040 typeTyConName = tcQual mETA_META_Name FSLIT("Type") typeTyConKey
1042 qTyConName = tcQual mETA_META_Name FSLIT("Q") qTyConKey
1043 expTyConName = tcQual mETA_META_Name FSLIT("Exp") expTyConKey
1044 decTyConName = tcQual mETA_META_Name FSLIT("Dec") decTyConKey
1045 typTyConName = tcQual mETA_META_Name FSLIT("Typ") typTyConKey
1046 matTyConName = tcQual mETA_META_Name FSLIT("Mat") matTyConKey
1047 clsTyConName = tcQual mETA_META_Name FSLIT("Cls") clsTyConKey
1049 -- TyConUniques available: 100-119
1050 -- Check in PrelNames if you want to change this
1052 expTyConKey = mkPreludeTyConUnique 100
1053 matTyConKey = mkPreludeTyConUnique 101
1054 clsTyConKey = mkPreludeTyConUnique 102
1055 qTyConKey = mkPreludeTyConUnique 103
1056 exprTyConKey = mkPreludeTyConUnique 104
1057 declTyConKey = mkPreludeTyConUnique 105
1058 pattTyConKey = mkPreludeTyConUnique 106
1059 mtchTyConKey = mkPreludeTyConUnique 107
1060 clseTyConKey = mkPreludeTyConUnique 108
1061 stmtTyConKey = mkPreludeTyConUnique 109
1062 consTyConKey = mkPreludeTyConUnique 110
1063 typeTyConKey = mkPreludeTyConUnique 111
1064 typTyConKey = mkPreludeTyConUnique 112
1065 decTyConKey = mkPreludeTyConUnique 113
1069 -- IdUniques available: 200-299
1070 -- If you want to change this, make sure you check in PrelNames
1071 fromIdKey = mkPreludeMiscIdUnique 200
1072 fromThenIdKey = mkPreludeMiscIdUnique 201
1073 fromToIdKey = mkPreludeMiscIdUnique 202
1074 fromThenToIdKey = mkPreludeMiscIdUnique 203
1075 liftIdKey = mkPreludeMiscIdUnique 204
1076 gensymIdKey = mkPreludeMiscIdUnique 205
1077 returnQIdKey = mkPreludeMiscIdUnique 206
1078 bindQIdKey = mkPreludeMiscIdUnique 207
1079 funIdKey = mkPreludeMiscIdUnique 208
1080 valIdKey = mkPreludeMiscIdUnique 209
1081 protoIdKey = mkPreludeMiscIdUnique 210
1082 matchIdKey = mkPreludeMiscIdUnique 211
1083 clauseIdKey = mkPreludeMiscIdUnique 212
1084 intLIdKey = mkPreludeMiscIdUnique 213
1085 charLIdKey = mkPreludeMiscIdUnique 214
1087 classDIdKey = mkPreludeMiscIdUnique 215
1088 instIdKey = mkPreludeMiscIdUnique 216
1089 dataDIdKey = mkPreludeMiscIdUnique 217
1092 plitIdKey = mkPreludeMiscIdUnique 220
1093 pvarIdKey = mkPreludeMiscIdUnique 221
1094 ptupIdKey = mkPreludeMiscIdUnique 222
1095 pconIdKey = mkPreludeMiscIdUnique 223
1096 ptildeIdKey = mkPreludeMiscIdUnique 224
1097 paspatIdKey = mkPreludeMiscIdUnique 225
1098 pwildIdKey = mkPreludeMiscIdUnique 226
1099 varIdKey = mkPreludeMiscIdUnique 227
1100 conIdKey = mkPreludeMiscIdUnique 228
1101 litIdKey = mkPreludeMiscIdUnique 229
1102 appIdKey = mkPreludeMiscIdUnique 230
1103 infixEIdKey = mkPreludeMiscIdUnique 231
1104 lamIdKey = mkPreludeMiscIdUnique 232
1105 tupIdKey = mkPreludeMiscIdUnique 233
1106 doEIdKey = mkPreludeMiscIdUnique 234
1107 compIdKey = mkPreludeMiscIdUnique 235
1108 listExpIdKey = mkPreludeMiscIdUnique 237
1109 condIdKey = mkPreludeMiscIdUnique 238
1110 letEIdKey = mkPreludeMiscIdUnique 239
1111 caseEIdKey = mkPreludeMiscIdUnique 240
1112 infixAppIdKey = mkPreludeMiscIdUnique 241
1113 sectionLIdKey = mkPreludeMiscIdUnique 242
1114 sectionRIdKey = mkPreludeMiscIdUnique 243
1115 guardedIdKey = mkPreludeMiscIdUnique 244
1116 normalIdKey = mkPreludeMiscIdUnique 245
1117 bindStIdKey = mkPreludeMiscIdUnique 246
1118 letStIdKey = mkPreludeMiscIdUnique 247
1119 noBindStIdKey = mkPreludeMiscIdUnique 248
1120 parStIdKey = mkPreludeMiscIdUnique 249
1122 tvarIdKey = mkPreludeMiscIdUnique 250
1123 tconIdKey = mkPreludeMiscIdUnique 251
1124 tappIdKey = mkPreludeMiscIdUnique 252
1126 arrowIdKey = mkPreludeMiscIdUnique 253
1127 tupleIdKey = mkPreludeMiscIdUnique 254
1128 listIdKey = mkPreludeMiscIdUnique 255
1129 namedTyConIdKey = mkPreludeMiscIdUnique 256
1131 constrIdKey = mkPreludeMiscIdUnique 257
1133 -- %************************************************************************
1137 -- %************************************************************************
1139 -- It is rather usatisfactory that we don't have a SrcLoc
1140 addDsWarn :: SDoc -> DsM ()
1141 addDsWarn msg = dsWarn (noSrcLoc, msg)