2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1996
4 \section[PrelInfo]{The @PrelInfo@ interface to the compiler's prelude knowledge}
7 #include "HsVersions.h"
11 -- finite maps for built-in things (for the renamer and typechecker):
12 builtinNameInfo, BuiltinNames(..),
13 BuiltinKeys(..), BuiltinIdInfos(..),
15 maybeCharLikeTyCon, maybeIntLikeTyCon
19 import PrelLoop ( primOpNameInfo )
22 import PrelMods -- Prelude module names
23 import PrelVals -- VALUES
24 import PrimOp ( PrimOp(..), allThePrimOps )
25 import PrimRep ( PrimRep(..) )
26 import TysPrim -- TYPES
30 import CmdLineOpts ( opt_HideBuiltinNames,
31 opt_HideMostBuiltinNames,
34 import FiniteMap ( FiniteMap, emptyFM, listToFM )
35 import Id ( mkTupleCon, GenId, Id(..) )
36 import Maybes ( catMaybes )
37 import Name ( moduleNamePair )
38 import RnHsSyn ( RnName(..) )
39 import TyCon ( tyConDataCons, mkFunTyCon, mkTupleTyCon, TyCon )
41 import UniqFM ( UniqFM, emptyUFM, listToUFM )
42 import Unique -- *Key stuff
43 import Util ( nOfThem, panic )
46 %************************************************************************
48 \subsection[builtinNameInfo]{Lookup built-in names}
50 %************************************************************************
52 We have two ``builtin name funs,'' one to look up @TyCons@ and
53 @Classes@, the other to look up values.
56 builtinNameInfo :: ( BuiltinNames, BuiltinKeys, BuiltinIdInfos )
58 type BuiltinNames = (FiniteMap (FAST_STRING,Module) RnName, -- WiredIn Ids
59 FiniteMap (FAST_STRING,Module) RnName) -- WiredIn TyCons
60 -- Two maps because "[]" is in both...
62 type BuiltinKeys = FiniteMap (FAST_STRING,Module) (Unique, Name -> RnName)
63 -- Names with known uniques
65 type BuiltinIdInfos = UniqFM IdInfo -- Info for known unique Ids
68 = if opt_HideBuiltinNames then
74 else if opt_HideMostBuiltinNames then
76 (listToFM min_assoc_val_wired, listToFM min_assoc_tc_wired),
82 (listToFM assoc_val_wired, listToFM assoc_tc_wired),
84 listToUFM assoc_id_infos
88 min_assoc_val_wired -- min needed when compiling bits of Prelude
91 concat (map pcDataConWiredInInfo g_con_tycons),
92 concat (map pcDataConWiredInInfo min_nonprim_tycon_list),
95 map pcIdWiredInInfo wired_in_ids,
101 map pcTyConWiredInInfo prim_tycons,
102 map pcTyConWiredInInfo g_tycons,
103 map pcTyConWiredInInfo min_nonprim_tycon_list
109 concat (map pcDataConWiredInInfo g_con_tycons),
110 concat (map pcDataConWiredInInfo data_tycons),
113 map pcIdWiredInInfo wired_in_ids,
114 map pcIdWiredInInfo parallel_ids,
120 map pcTyConWiredInInfo prim_tycons,
121 map pcTyConWiredInInfo g_tycons,
122 map pcTyConWiredInInfo data_tycons,
123 map pcTyConWiredInInfo synonym_tycons
135 id_keys = map id_key id_keys_infos
136 id_key (str_mod, uniq, info) = (str_mod, (uniq, RnImplicit))
138 assoc_id_infos = catMaybes (map assoc_info id_keys_infos)
139 assoc_info (str_mod, uniq, Just info) = Just (uniq, info)
140 assoc_info (str_mod, uniq, Nothing) = Nothing
144 We let a lot of "non-standard" values be visible, so that we can make
145 sense of them in interface pragmas. It's cool, though they all have
146 "non-standard" names, so they won't get past the parser in user code.
148 The WiredIn TyCons and DataCons ...
159 , foreignObjPrimTyCon
160 , mutableArrayPrimTyCon
161 , mutableByteArrayPrimTyCon
170 = mkFunTyCon : g_con_tycons
173 = listTyCon : mkTupleTyCon 0 : [mkTupleTyCon i | i <- [2..32] ]
175 min_nonprim_tycon_list -- used w/ HideMostBuiltinNames
185 , return2GMPsTyCon -- ADR asked for these last two (WDP 94/11)
186 , returnIntAndGMPTyCon
203 , returnIntAndGMPTyCon
205 , stateAndAddrPrimTyCon
206 , stateAndArrayPrimTyCon
207 , stateAndByteArrayPrimTyCon
208 , stateAndCharPrimTyCon
209 , stateAndDoublePrimTyCon
210 , stateAndFloatPrimTyCon
211 , stateAndIntPrimTyCon
212 , stateAndForeignObjPrimTyCon
213 , stateAndMutableArrayPrimTyCon
214 , stateAndMutableByteArrayPrimTyCon
215 , stateAndSynchVarPrimTyCon
216 , stateAndPtrPrimTyCon
217 , stateAndStablePtrPrimTyCon
218 , stateAndWordPrimTyCon
232 ToDo: Some of these should be moved to id_keys_infos!
236 , pAT_ERROR_ID -- occurs in i/faces
237 , pAR_ERROR_ID -- ditto
244 -- foldr/build Ids have magic unfoldings
249 , unpackCStringAppendId
250 , unpackCStringFoldrId
254 = if not opt_ForConcurrent then
270 pcTyConWiredInInfo :: TyCon -> ((FAST_STRING,Module), RnName)
271 pcTyConWiredInInfo tc = (swap (moduleNamePair tc), WiredInTyCon tc)
273 pcDataConWiredInInfo :: TyCon -> [((FAST_STRING,Module), RnName)]
274 pcDataConWiredInInfo tycon
275 = [ (swap (moduleNamePair con), WiredInId con) | con <- tyConDataCons tycon ]
277 pcIdWiredInInfo :: Id -> ((FAST_STRING,Module), RnName)
278 pcIdWiredInInfo id = (swap (moduleNamePair id), WiredInId id)
283 WiredIn primitive numeric operations ...
286 = map prim_fn allThePrimOps ++ map funny_fn funny_name_primops
288 prim_fn op = case (primOpNameInfo op) of (s,n) -> ((s,pRELUDE),n)
289 funny_fn (op,s) = case (primOpNameInfo op) of (_,n) -> ((s,pRELUDE),n)
292 = [ (IntAddOp, SLIT("+#"))
293 , (IntSubOp, SLIT("-#"))
294 , (IntMulOp, SLIT("*#"))
295 , (IntGtOp, SLIT(">#"))
296 , (IntGeOp, SLIT(">=#"))
297 , (IntEqOp, SLIT("==#"))
298 , (IntNeOp, SLIT("/=#"))
299 , (IntLtOp, SLIT("<#"))
300 , (IntLeOp, SLIT("<=#"))
301 , (DoubleAddOp, SLIT("+##"))
302 , (DoubleSubOp, SLIT("-##"))
303 , (DoubleMulOp, SLIT("*##"))
304 , (DoubleDivOp, SLIT("/##"))
305 , (DoublePowerOp, SLIT("**##"))
306 , (DoubleGtOp, SLIT(">##"))
307 , (DoubleGeOp, SLIT(">=##"))
308 , (DoubleEqOp, SLIT("==##"))
309 , (DoubleNeOp, SLIT("/=##"))
310 , (DoubleLtOp, SLIT("<##"))
311 , (DoubleLeOp, SLIT("<=##"))
316 Ids, Synonyms, Classes and ClassOps with builtin keys.
317 For the Ids we may also have some builtin IdInfo.
319 id_keys_infos :: [((FAST_STRING,Module), Unique, Maybe IdInfo)]
321 = [ ((SLIT("main"),SLIT("Main")), mainIdKey, Nothing)
322 , ((SLIT("mainPrimIO"),SLIT("Main")), mainPrimIOIdKey, Nothing)
326 = [ ((SLIT("IO"),pRELUDE), (iOTyConKey, RnImplicitTyCon))
329 -- this "class_keys" list *must* include:
330 -- classes that are grabbed by key (e.g., eqClassKey)
331 -- classes in "Class.standardClassKeys" (quite a few)
334 = [ (str_mod, (k, RnImplicitClass)) | (str_mod,k) <-
335 [ ((SLIT("Eq"),pRELUDE), eqClassKey) -- mentioned, derivable
336 , ((SLIT("Eval"),pRELUDE), evalClassKey) -- mentioned
337 , ((SLIT("Ord"),pRELUDE), ordClassKey) -- derivable
338 , ((SLIT("Num"),pRELUDE), numClassKey) -- mentioned, numeric
339 , ((SLIT("Real"),pRELUDE), realClassKey) -- numeric
340 , ((SLIT("Integral"),pRELUDE), integralClassKey) -- numeric
341 , ((SLIT("Fractional"),pRELUDE), fractionalClassKey) -- numeric
342 , ((SLIT("Floating"),pRELUDE), floatingClassKey) -- numeric
343 , ((SLIT("RealFrac"),pRELUDE), realFracClassKey) -- numeric
344 , ((SLIT("RealFloat"),pRELUDE), realFloatClassKey) -- numeric
345 , ((SLIT("Ix"),iX), ixClassKey) -- derivable (but it isn't Prelude.Ix; hmmm)
346 , ((SLIT("Bounded"),pRELUDE), boundedClassKey) -- derivable
347 , ((SLIT("Enum"),pRELUDE), enumClassKey) -- derivable
348 , ((SLIT("Show"),pRELUDE), showClassKey) -- derivable
349 , ((SLIT("Read"),pRELUDE), readClassKey) -- derivable
350 , ((SLIT("Monad"),pRELUDE), monadClassKey)
351 , ((SLIT("MonadZero"),pRELUDE), monadZeroClassKey)
352 , ((SLIT("MonadPlus"),pRELUDE), monadPlusClassKey)
353 , ((SLIT("Functor"),pRELUDE), functorClassKey)
354 , ((SLIT("CCallable"),pRELUDE), cCallableClassKey) -- mentioned, ccallish
355 , ((SLIT("CReturnable"),pRELUDE), cReturnableClassKey) -- mentioned, ccallish
359 = [ (str_mod, (k, RnImplicit)) | (str_mod,k) <-
360 [ ((SLIT("fromInt"),pRELUDE), fromIntClassOpKey)
361 , ((SLIT("fromInteger"),pRELUDE), fromIntegerClassOpKey)
362 , ((SLIT("fromRational"),pRELUDE), fromRationalClassOpKey)
363 , ((SLIT("enumFrom"),pRELUDE), enumFromClassOpKey)
364 , ((SLIT("enumFromThen"),pRELUDE), enumFromThenClassOpKey)
365 , ((SLIT("enumFromTo"),pRELUDE), enumFromToClassOpKey)
366 , ((SLIT("enumFromThenTo"),pRELUDE),enumFromThenToClassOpKey)
367 , ((SLIT("=="),pRELUDE), eqClassOpKey)
371 ToDo: make it do the ``like'' part properly (as in 0.26 and before).
373 maybeCharLikeTyCon tc = if (uniqueOf tc == charDataConKey) then Just charDataCon else Nothing
374 maybeIntLikeTyCon tc = if (uniqueOf tc == intDataConKey) then Just intDataCon else Nothing