#include "HsVersions.h"
module PrelInfo (
-
-- finite maps for built-in things (for the renamer and typechecker):
- builtinNameInfo, builtinNameMaps,
- builtinValNamesMap, builtinTcNamesMap,
- builtinKeysMap,
+ builtinNames, derivingOccurrences,
SYN_IE(BuiltinNames),
- SYN_IE(BuiltinKeys), SYN_IE(BuiltinIdInfos),
- maybeCharLikeTyCon, maybeIntLikeTyCon
+ maybeCharLikeTyCon, maybeIntLikeTyCon,
+
+ eq_RDR, ne_RDR, le_RDR, lt_RDR, ge_RDR, gt_RDR, max_RDR, min_RDR, compare_RDR,
+ minBound_RDR, maxBound_RDR, enumFrom_RDR, enumFromTo_RDR, enumFromThen_RDR,
+ enumFromThenTo_RDR, fromEnum_RDR, toEnum_RDR,
+ range_RDR, index_RDR, inRange_RDR, readsPrec_RDR, readList_RDR,
+ showsPrec_RDR, showList_RDR, plus_RDR, times_RDR, ltTag_RDR, eqTag_RDR, gtTag_RDR,
+ eqH_Char_RDR, ltH_Char_RDR, eqH_Word_RDR, ltH_Word_RDR, eqH_Addr_RDR, ltH_Addr_RDR,
+ eqH_Float_RDR, ltH_Float_RDR, eqH_Double_RDR, ltH_Double_RDR, eqH_Int_RDR, ltH_Int_RDR,
+ geH_RDR, leH_RDR, minusH_RDR, false_RDR, true_RDR, and_RDR, not_RDR, append_RDR,
+ map_RDR, compose_RDR, mkInt_RDR, error_RDR, showString_RDR, showParen_RDR, readParen_RDR,
+ lex_RDR, showSpace_RDR, showList___RDR, readList___RDR, negate_RDR,
+
+ numClass_RDR, fractionalClass_RDR, eqClass_RDR, ccallableClass_RDR, creturnableClass_RDR,
+ monadZeroClass_RDR, enumClass_RDR, evalClass_RDR, ordClass_RDR,
+
+ main_NAME, mainPrimIO_NAME, ioTyCon_NAME, primIoTyCon_NAME,
+
+ needsDataDeclCtxtClassKeys, cCallishClassKeys, isNoDictClass,
+ isNumericClass, isStandardClass, isCcallishClass
) where
IMP_Ubiq()
-IMPORT_DELOOPER(PrelLoop) ( primOpNameInfo )
+IMPORT_DELOOPER(PrelLoop) ( primOpName )
+-- IMPORT_DELOOPER(IdLoop) ( SpecEnv )
-- friends:
import PrelMods -- Prelude module names
import TysWiredIn
-- others:
-import FiniteMap ( FiniteMap, emptyFM, listToFM )
-import Id ( mkTupleCon, GenId, SYN_IE(Id) )
-import Maybes ( catMaybes )
-import Name ( origName, OrigName(..), Name )
-import RnHsSyn ( RnName(..) )
-import TyCon ( tyConDataCons, mkFunTyCon, mkTupleTyCon, TyCon )
+import SpecEnv ( SpecEnv )
+import RdrHsSyn ( RdrName(..), varQual, tcQual, qual )
+import Id ( GenId, SYN_IE(Id) )
+import Name ( Name, OccName(..), DefnInfo(..), Provenance(..),
+ getName, mkGlobalName, modAndOcc )
+import Class ( Class(..), GenClass, classKey )
+import TyCon ( tyConDataCons, mkFunTyCon, TyCon )
import Type
-import UniqFM ( UniqFM, emptyUFM, listToUFM )
+import Bag
import Unique -- *Key stuff
-import Util ( nOfThem, panic )
+import UniqFM ( UniqFM, listToUFM )
+import Util ( isIn )
\end{code}
%************************************************************************
@Classes@, the other to look up values.
\begin{code}
-builtinNameInfo :: ( BuiltinNames, BuiltinKeys, BuiltinIdInfos )
-
-type BuiltinNames = (FiniteMap OrigName RnName, -- WiredIn Ids
- FiniteMap OrigName RnName) -- WiredIn TyCons
- -- Two maps because "[]" is in both...
-
-type BuiltinKeys = FiniteMap OrigName (Unique, Name -> RnName)
- -- Names with known uniques
-
-type BuiltinIdInfos = UniqFM IdInfo -- Info for known unique Ids
-
-builtinNameMaps = case builtinNameInfo of { (x,_,_) -> x }
-builtinKeysMap = case builtinNameInfo of { (_,x,_) -> x }
-builtinValNamesMap = fst builtinNameMaps
-builtinTcNamesMap = snd builtinNameMaps
-
-builtinNameInfo
- = ( (listToFM assoc_val_wired, listToFM assoc_tc_wired)
- , listToFM assoc_keys
- , listToUFM assoc_id_infos
- )
- where
- assoc_val_wired
- = concat [
- -- data constrs
- concat (map pcDataConWiredInInfo g_con_tycons),
- concat (map pcDataConWiredInInfo data_tycons),
-
- -- values
- map pcIdWiredInInfo wired_in_ids,
- primop_ids
- ]
- assoc_tc_wired
- = concat [
- -- tycons
- map pcTyConWiredInInfo prim_tycons,
- map pcTyConWiredInInfo g_tycons,
- map pcTyConWiredInInfo data_tycons
- ]
-
- assoc_keys
- = concat
- [
- id_keys,
- tysyn_keys,
- class_keys,
- class_op_keys
- ]
-
- id_keys = map id_key id_keys_infos
- id_key (str_mod, uniq, info) = (str_mod, (uniq, RnImplicit))
-
- assoc_id_infos = catMaybes (map assoc_info id_keys_infos)
- assoc_info (str_mod, uniq, Just info) = Just (uniq, info)
- assoc_info (str_mod, uniq, Nothing) = Nothing
+type BuiltinNames = Bag Name
+
+builtinNames :: BuiltinNames
+builtinNames
+ = -- Wired in TyCons
+ unionManyBags (map getTyConNames wired_in_tycons) `unionBags`
+
+ -- Wired in Ids
+ listToBag (map getName wired_in_ids) `unionBags`
+
+ -- PrimOps
+ listToBag (map (getName.primOpName) allThePrimOps) `unionBags`
+
+ -- Other names with magic keys
+ listToBag knownKeyNames
+\end{code}
+
+
+\begin{code}
+getTyConNames :: TyCon -> Bag Name
+getTyConNames tycon
+ = getName tycon `consBag` listToBag (map getName (tyConDataCons tycon))
+ -- Synonyms return empty list of constructors
\end{code}
sense of them in interface pragmas. It's cool, though they all have
"non-standard" names, so they won't get past the parser in user code.
-The WiredIn TyCons and DataCons ...
+%************************************************************************
+%* *
+\subsection{Wired in TyCons}
+%* *
+%************************************************************************
+
+
\begin{code}
+wired_in_tycons = [mkFunTyCon] ++
+ prim_tycons ++
+ tuple_tycons ++
+ data_tycons
prim_tycons
= [ addrPrimTyCon
, wordPrimTyCon
]
-g_tycons
- = mkFunTyCon : g_con_tycons
-
-g_con_tycons
- = listTyCon : mkTupleTyCon 0 : [mkTupleTyCon i | i <- [2..37] ]
-
-min_nonprim_tycon_list -- used w/ HideMostBuiltinNames
- = [ boolTyCon
- , charTyCon
- , intTyCon
- , floatTyCon
- , doubleTyCon
- , integerTyCon
- , liftTyCon
- , return2GMPsTyCon -- ADR asked for these last two (WDP 94/11)
- , returnIntAndGMPTyCon
- ]
+tuple_tycons = unitTyCon : [tupleTyCon i | i <- [2..37] ]
data_tycons
- = [ addrTyCon
+ = [ listTyCon
+ , addrTyCon
, boolTyCon
, charTyCon
, doubleTyCon
, voidTyCon
, wordTyCon
]
+
+min_nonprim_tycon_list -- used w/ HideMostBuiltinNames
+ = [ boolTyCon
+ , charTyCon
+ , intTyCon
+ , floatTyCon
+ , doubleTyCon
+ , integerTyCon
+ , liftTyCon
+ , return2GMPsTyCon -- ADR asked for these last two (WDP 94/11)
+ , returnIntAndGMPTyCon
+ ]
\end{code}
+%************************************************************************
+%* *
+\subsection{Wired in Ids}
+%* *
+%************************************************************************
+
The WiredIn Ids ...
ToDo: Some of these should be moved to id_keys_infos!
+
\begin{code}
wired_in_ids
= [ aBSENT_ERROR_ID
, augmentId
, buildId
--- , copyableId
, eRROR_ID
, foldlId
, foldrId
--- , forkId
, iRREFUT_PAT_ERROR_ID
, integerMinusOneId
, integerPlusOneId
, nON_EXHAUSTIVE_GUARDS_ERROR_ID
, nO_DEFAULT_METHOD_ERROR_ID
, nO_EXPLICIT_METHOD_ERROR_ID
--- , noFollowId
, pAR_ERROR_ID
, pAT_ERROR_ID
, packStringForCId
--- , parAtAbsId
--- , parAtForNowId
--- , parAtId
--- , parAtRelId
--- , parGlobalId
--- , parId
--- , parLocalId
, rEC_CON_ERROR_ID
, rEC_UPD_ERROR_ID
, realWorldPrimId
, runSTId
--- , seqId
, tRACE_ID
, unpackCString2Id
, unpackCStringAppendId
, unpackCStringFoldrId
, unpackCStringId
, voidId
+
+-- , copyableId
+-- , forkId
+-- , noFollowId
+-- , parAtAbsId
+-- , parAtForNowId
+-- , parAtId
+-- , parAtRelId
+-- , parGlobalId
+-- , parId
+-- , parLocalId
+-- , seqId
]
+\end{code}
-pcTyConWiredInInfo :: TyCon -> (OrigName, RnName)
-pcTyConWiredInInfo tc = (origName "pcTyConWiredInInfo" tc, WiredInTyCon tc)
-pcDataConWiredInInfo :: TyCon -> [(OrigName, RnName)]
-pcDataConWiredInInfo tycon
- = [ (origName "pcDataConWiredInInfo" con, WiredInId con) | con <- tyConDataCons tycon ]
+%************************************************************************
+%* *
+\subsection{Built-in keys}
+%* *
+%************************************************************************
-pcIdWiredInInfo :: Id -> (OrigName, RnName)
-pcIdWiredInInfo id = (origName "pcIdWiredInInfo" id, WiredInId id)
-\end{code}
+Ids, Synonyms, Classes and ClassOps with builtin keys.
-WiredIn primitive numeric operations ...
\begin{code}
-primop_ids
- = map prim_fn allThePrimOps ++ map funny_fn funny_name_primops
- where
- prim_fn op = case (primOpNameInfo op) of (s,n) -> ((OrigName gHC_BUILTINS s),n)
- funny_fn (op,s) = case (primOpNameInfo op) of (_,n) -> ((OrigName gHC_BUILTINS s),n)
-
-funny_name_primops
- = [ (IntAddOp, SLIT("+#"))
- , (IntSubOp, SLIT("-#"))
- , (IntMulOp, SLIT("*#"))
- , (IntGtOp, SLIT(">#"))
- , (IntGeOp, SLIT(">=#"))
- , (IntEqOp, SLIT("==#"))
- , (IntNeOp, SLIT("/=#"))
- , (IntLtOp, SLIT("<#"))
- , (IntLeOp, SLIT("<=#"))
- , (DoubleAddOp, SLIT("+##"))
- , (DoubleSubOp, SLIT("-##"))
- , (DoubleMulOp, SLIT("*##"))
- , (DoubleDivOp, SLIT("/##"))
- , (DoublePowerOp, SLIT("**##"))
- , (DoubleGtOp, SLIT(">##"))
- , (DoubleGeOp, SLIT(">=##"))
- , (DoubleEqOp, SLIT("==##"))
- , (DoubleNeOp, SLIT("/=##"))
- , (DoubleLtOp, SLIT("<##"))
- , (DoubleLeOp, SLIT("<=##"))
+mkKnownKeyGlobal :: (RdrName, Unique) -> Name
+mkKnownKeyGlobal (Qual mod occ, uniq) = mkGlobalName uniq mod occ VanillaDefn Implicit
+
+main_NAME = mkKnownKeyGlobal (main_RDR, mainKey)
+mainPrimIO_NAME = mkKnownKeyGlobal (mainPrimIO_RDR, mainPrimIoKey)
+ioTyCon_NAME = mkKnownKeyGlobal (ioTyCon_RDR, iOTyConKey)
+primIoTyCon_NAME = getName primIoTyCon
+
+knownKeyNames :: [Name]
+knownKeyNames
+ = [main_NAME, mainPrimIO_NAME, ioTyCon_NAME]
+ ++
+ map mkKnownKeyGlobal
+ [
+ -- Type constructors (synonyms especially)
+ (orderingTyCon_RDR, orderingTyConKey)
+ , (rationalTyCon_RDR, rationalTyConKey)
+ , (ratioTyCon_RDR, ratioTyConKey)
+
+ -- Classes. *Must* include:
+ -- classes that are grabbed by key (e.g., eqClassKey)
+ -- classes in "Class.standardClassKeys" (quite a few)
+ , (eqClass_RDR, eqClassKey) -- mentioned, derivable
+ , (ordClass_RDR, ordClassKey) -- derivable
+ , (evalClass_RDR, evalClassKey) -- mentioned
+ , (boundedClass_RDR, boundedClassKey) -- derivable
+ , (numClass_RDR, numClassKey) -- mentioned, numeric
+ , (enumClass_RDR, enumClassKey) -- derivable
+ , (monadClass_RDR, monadClassKey)
+ , (monadZeroClass_RDR, monadZeroClassKey)
+ , (monadPlusClass_RDR, monadPlusClassKey)
+ , (functorClass_RDR, functorClassKey)
+ , (showClass_RDR, showClassKey) -- derivable
+ , (realClass_RDR, realClassKey) -- numeric
+ , (integralClass_RDR, integralClassKey) -- numeric
+ , (fractionalClass_RDR, fractionalClassKey) -- numeric
+ , (floatingClass_RDR, floatingClassKey) -- numeric
+ , (realFracClass_RDR, realFracClassKey) -- numeric
+ , (realFloatClass_RDR, realFloatClassKey) -- numeric
+ , (readClass_RDR, readClassKey) -- derivable
+ , (ixClass_RDR, ixClassKey) -- derivable (but it isn't Prelude.Ix; hmmm)
+ , (ccallableClass_RDR, cCallableClassKey) -- mentioned, ccallish
+ , (creturnableClass_RDR, cReturnableClassKey) -- mentioned, ccallish
+
+ -- ClassOps
+ , (fromInt_RDR, fromIntClassOpKey)
+ , (fromInteger_RDR, fromIntegerClassOpKey)
+ , (ge_RDR, geClassOpKey)
+ , (minus_RDR, minusClassOpKey)
+ , (enumFrom_RDR, enumFromClassOpKey)
+ , (enumFromThen_RDR, enumFromThenClassOpKey)
+ , (enumFromTo_RDR, enumFromToClassOpKey)
+ , (enumFromThenTo_RDR, enumFromThenToClassOpKey)
+ , (fromEnum_RDR, fromEnumClassOpKey)
+ , (toEnum_RDR, toEnumClassOpKey)
+ , (eq_RDR, eqClassOpKey)
+ , (thenM_RDR, thenMClassOpKey)
+ , (returnM_RDR, returnMClassOpKey)
+ , (zeroM_RDR, zeroClassOpKey)
+ , (fromRational_RDR, fromRationalClassOpKey)
+
+ -- Others
+ , (otherwiseId_RDR, otherwiseIdKey)
]
\end{code}
+ToDo: make it do the ``like'' part properly (as in 0.26 and before).
-Ids, Synonyms, Classes and ClassOps with builtin keys.
-For the Ids we may also have some builtin IdInfo.
\begin{code}
-id_keys_infos :: [(OrigName, Unique, Maybe IdInfo)]
-id_keys_infos
- = [ -- here because we use them in derived instances
- (OrigName pRELUDE SLIT("&&"), andandIdKey, Nothing)
- , (OrigName pRELUDE SLIT("."), composeIdKey, Nothing)
- , (OrigName gHC__ SLIT("lex"), lexIdKey, Nothing)
- , (OrigName pRELUDE SLIT("not"), notIdKey, Nothing)
- , (OrigName pRELUDE SLIT("readParen"), readParenIdKey, Nothing)
- , (OrigName pRELUDE SLIT("showParen"), showParenIdKey, Nothing)
- , (OrigName pRELUDE SLIT("showString"), showStringIdKey,Nothing)
- , (OrigName gHC__ SLIT("readList__"), ureadListIdKey, Nothing)
- , (OrigName gHC__ SLIT("showList__"), ushowListIdKey, Nothing)
- , (OrigName gHC__ SLIT("showSpace"), showSpaceIdKey, Nothing)
- ]
+maybeCharLikeTyCon tc = if (uniqueOf tc == charDataConKey) then Just charDataCon else Nothing
+maybeIntLikeTyCon tc = if (uniqueOf tc == intDataConKey) then Just intDataCon else Nothing
+\end{code}
-tysyn_keys
- = [ (OrigName gHC__ SLIT("IO"), (iOTyConKey, RnImplicitTyCon))
- , (OrigName pRELUDE SLIT("Ordering"), (orderingTyConKey, RnImplicitTyCon))
- , (OrigName rATIO SLIT("Rational"), (rationalTyConKey, RnImplicitTyCon))
- , (OrigName rATIO SLIT("Ratio"), (ratioTyConKey, RnImplicitTyCon))
- ]
+%************************************************************************
+%* *
+\subsection{Commonly-used RdrNames}
+%* *
+%************************************************************************
+
+These RdrNames are not really "built in", but some parts of the compiler
+(notably the deriving mechanism) need to mention their names, and it's convenient
+to write them all down in one place.
--- this "class_keys" list *must* include:
--- classes that are grabbed by key (e.g., eqClassKey)
--- classes in "Class.standardClassKeys" (quite a few)
-
-class_keys
- = [ (str_mod, (k, RnImplicitClass)) | (str_mod,k) <-
- [ (OrigName pRELUDE SLIT("Eq"), eqClassKey) -- mentioned, derivable
- , (OrigName pRELUDE SLIT("Eval"), evalClassKey) -- mentioned
- , (OrigName pRELUDE SLIT("Ord"), ordClassKey) -- derivable
- , (OrigName pRELUDE SLIT("Num"), numClassKey) -- mentioned, numeric
- , (OrigName pRELUDE SLIT("Real"), realClassKey) -- numeric
- , (OrigName pRELUDE SLIT("Integral"), integralClassKey) -- numeric
- , (OrigName pRELUDE SLIT("Fractional"), fractionalClassKey) -- numeric
- , (OrigName pRELUDE SLIT("Floating"), floatingClassKey) -- numeric
- , (OrigName pRELUDE SLIT("RealFrac"), realFracClassKey) -- numeric
- , (OrigName pRELUDE SLIT("RealFloat"), realFloatClassKey) -- numeric
- , (OrigName iX SLIT("Ix"), ixClassKey) -- derivable (but it isn't Prelude.Ix; hmmm)
- , (OrigName pRELUDE SLIT("Bounded"), boundedClassKey) -- derivable
- , (OrigName pRELUDE SLIT("Enum"), enumClassKey) -- derivable
- , (OrigName pRELUDE SLIT("Show"), showClassKey) -- derivable
- , (OrigName pRELUDE SLIT("Read"), readClassKey) -- derivable
- , (OrigName pRELUDE SLIT("Monad"), monadClassKey)
- , (OrigName pRELUDE SLIT("MonadZero"), monadZeroClassKey)
- , (OrigName pRELUDE SLIT("MonadPlus"), monadPlusClassKey)
- , (OrigName pRELUDE SLIT("Functor"), functorClassKey)
- , (OrigName gHC__ SLIT("CCallable"), cCallableClassKey) -- mentioned, ccallish
- , (OrigName gHC__ SLIT("CReturnable"), cReturnableClassKey) -- mentioned, ccallish
- ]]
-
-class_op_keys
- = [ (str_mod, (k, RnImplicit)) | (str_mod,k) <-
- [ (OrigName pRELUDE SLIT("fromInt"), fromIntClassOpKey)
- , (OrigName pRELUDE SLIT("fromInteger"), fromIntegerClassOpKey)
- , (OrigName pRELUDE SLIT("fromRational"), fromRationalClassOpKey)
- , (OrigName pRELUDE SLIT("enumFrom"), enumFromClassOpKey)
- , (OrigName pRELUDE SLIT("enumFromThen"), enumFromThenClassOpKey)
- , (OrigName pRELUDE SLIT("enumFromTo"), enumFromToClassOpKey)
- , (OrigName pRELUDE SLIT("enumFromThenTo"),enumFromThenToClassOpKey)
- , (OrigName pRELUDE SLIT("=="), eqClassOpKey)
- , (OrigName pRELUDE SLIT(">>="), thenMClassOpKey)
- , (OrigName pRELUDE SLIT("zero"), zeroClassOpKey)
- ]]
+\begin{code}
+prelude_primop op = qual (modAndOcc (primOpName op))
+
+intTyCon_RDR = qual (modAndOcc intTyCon)
+ioTyCon_RDR = tcQual (iO_BASE, SLIT("IO"))
+orderingTyCon_RDR = tcQual (pREL_BASE, SLIT("Ordering"))
+rationalTyCon_RDR = tcQual (pREL_NUM, SLIT("Rational"))
+ratioTyCon_RDR = tcQual (pREL_NUM, SLIT("Ratio"))
+
+eqClass_RDR = tcQual (pREL_BASE, SLIT("Eq"))
+ordClass_RDR = tcQual (pREL_BASE, SLIT("Ord"))
+evalClass_RDR = tcQual (pREL_BASE, SLIT("Eval"))
+boundedClass_RDR = tcQual (pREL_BASE, SLIT("Bounded"))
+numClass_RDR = tcQual (pREL_BASE, SLIT("Num"))
+enumClass_RDR = tcQual (pREL_BASE, SLIT("Enum"))
+monadClass_RDR = tcQual (pREL_BASE, SLIT("Monad"))
+monadZeroClass_RDR = tcQual (pREL_BASE, SLIT("MonadZero"))
+monadPlusClass_RDR = tcQual (pREL_BASE, SLIT("MonadPlus"))
+functorClass_RDR = tcQual (pREL_BASE, SLIT("Functor"))
+showClass_RDR = tcQual (pREL_BASE, SLIT("Show"))
+realClass_RDR = tcQual (pREL_NUM, SLIT("Real"))
+integralClass_RDR = tcQual (pREL_NUM, SLIT("Integral"))
+fractionalClass_RDR = tcQual (pREL_NUM, SLIT("Fractional"))
+floatingClass_RDR = tcQual (pREL_NUM, SLIT("Floating"))
+realFracClass_RDR = tcQual (pREL_NUM, SLIT("RealFrac"))
+realFloatClass_RDR = tcQual (pREL_NUM, SLIT("RealFloat"))
+readClass_RDR = tcQual (pREL_READ, SLIT("Read"))
+ixClass_RDR = tcQual (iX, SLIT("Ix"))
+ccallableClass_RDR = tcQual (fOREIGN, SLIT("CCallable"))
+creturnableClass_RDR = tcQual (fOREIGN, SLIT("CReturnable"))
+
+fromInt_RDR = varQual (pREL_BASE, SLIT("fromInt"))
+fromInteger_RDR = varQual (pREL_BASE, SLIT("fromInteger"))
+minus_RDR = varQual (pREL_BASE, SLIT("-"))
+toEnum_RDR = varQual (pREL_BASE, SLIT("toEnum"))
+fromEnum_RDR = varQual (pREL_BASE, SLIT("fromEnum"))
+enumFrom_RDR = varQual (pREL_BASE, SLIT("enumFrom"))
+enumFromTo_RDR = varQual (pREL_BASE, SLIT("enumFromTo"))
+enumFromThen_RDR = varQual (pREL_BASE, SLIT("enumFromThen"))
+enumFromThenTo_RDR = varQual (pREL_BASE, SLIT("enumFromThenTo"))
+
+thenM_RDR = varQual (pREL_BASE, SLIT(">>="))
+returnM_RDR = varQual (pREL_BASE, SLIT("return"))
+zeroM_RDR = varQual (pREL_BASE, SLIT("zero"))
+fromRational_RDR = varQual (pREL_NUM, SLIT("fromRational"))
+
+negate_RDR = varQual (pREL_BASE, SLIT("negate"))
+eq_RDR = varQual (pREL_BASE, SLIT("=="))
+ne_RDR = varQual (pREL_BASE, SLIT("/="))
+le_RDR = varQual (pREL_BASE, SLIT("<="))
+lt_RDR = varQual (pREL_BASE, SLIT("<"))
+ge_RDR = varQual (pREL_BASE, SLIT(">="))
+gt_RDR = varQual (pREL_BASE, SLIT(">"))
+ltTag_RDR = varQual (pREL_BASE, SLIT("LT"))
+eqTag_RDR = varQual (pREL_BASE, SLIT("EQ"))
+gtTag_RDR = varQual (pREL_BASE, SLIT("GT"))
+max_RDR = varQual (pREL_BASE, SLIT("max"))
+min_RDR = varQual (pREL_BASE, SLIT("min"))
+compare_RDR = varQual (pREL_BASE, SLIT("compare"))
+minBound_RDR = varQual (pREL_BASE, SLIT("minBound"))
+maxBound_RDR = varQual (pREL_BASE, SLIT("maxBound"))
+false_RDR = varQual (pREL_BASE, SLIT("False"))
+true_RDR = varQual (pREL_BASE, SLIT("True"))
+and_RDR = varQual (pREL_BASE, SLIT("&&"))
+not_RDR = varQual (pREL_BASE, SLIT("not"))
+compose_RDR = varQual (pREL_BASE, SLIT("."))
+append_RDR = varQual (pREL_BASE, SLIT("++"))
+map_RDR = varQual (pREL_BASE, SLIT("map"))
+
+showList___RDR = varQual (pREL_BASE, SLIT("showList__"))
+showsPrec_RDR = varQual (pREL_BASE, SLIT("showsPrec"))
+showList_RDR = varQual (pREL_BASE, SLIT("showList"))
+showSpace_RDR = varQual (pREL_BASE, SLIT("showSpace"))
+showString_RDR = varQual (pREL_BASE, SLIT("showString"))
+showParen_RDR = varQual (pREL_BASE, SLIT("showParen"))
+
+range_RDR = varQual (iX, SLIT("range"))
+index_RDR = varQual (iX, SLIT("index"))
+inRange_RDR = varQual (iX, SLIT("inRange"))
+
+readsPrec_RDR = varQual (pREL_READ, SLIT("readsPrec"))
+readList_RDR = varQual (pREL_READ, SLIT("readList"))
+readParen_RDR = varQual (pREL_READ, SLIT("readParen"))
+lex_RDR = varQual (pREL_READ, SLIT("lex"))
+readList___RDR = varQual (pREL_READ, SLIT("readList__"))
+
+plus_RDR = varQual (pREL_BASE, SLIT("+"))
+times_RDR = varQual (pREL_BASE, SLIT("*"))
+mkInt_RDR = varQual (pREL_BASE, SLIT("I#"))
+
+error_RDR = varQual (iO_BASE, SLIT("error"))
+
+eqH_Char_RDR = prelude_primop CharEqOp
+ltH_Char_RDR = prelude_primop CharLtOp
+eqH_Word_RDR = prelude_primop WordEqOp
+ltH_Word_RDR = prelude_primop WordLtOp
+eqH_Addr_RDR = prelude_primop AddrEqOp
+ltH_Addr_RDR = prelude_primop AddrLtOp
+eqH_Float_RDR = prelude_primop FloatEqOp
+ltH_Float_RDR = prelude_primop FloatLtOp
+eqH_Double_RDR = prelude_primop DoubleEqOp
+ltH_Double_RDR = prelude_primop DoubleLtOp
+eqH_Int_RDR = prelude_primop IntEqOp
+ltH_Int_RDR = prelude_primop IntLtOp
+geH_RDR = prelude_primop IntGeOp
+leH_RDR = prelude_primop IntLeOp
+minusH_RDR = prelude_primop IntSubOp
+
+main_RDR = varQual (mAIN, SLIT("main"))
+mainPrimIO_RDR = varQual (gHC_MAIN, SLIT("mainPrimIO"))
+
+otherwiseId_RDR = varQual (pREL_BASE, SLIT("otherwise"))
\end{code}
-ToDo: make it do the ``like'' part properly (as in 0.26 and before).
+%************************************************************************
+%* *
+\subsection[Class-std-groups]{Standard groups of Prelude classes}
+%* *
+%************************************************************************
+
+@derivableClassKeys@ is also used in checking \tr{deriving} constructs
+(@TcDeriv@).
+
+@derivingOccurrences@ maps a class name to a list of the (qualified) occurrences
+that will be mentioned by the derived code for the class when it is later generated.
+We don't need to put in things that are WiredIn (because they are already mapped to their
+correct name by the @NameSupply@. The class itself, and all its class ops, is
+already flagged as an occurrence so we don't need to mention that either.
+
+@derivingOccurrences@ has an item for every derivable class, even if that item is empty,
+because we treat lookup failure as indicating that the class is illegal in a deriving clause.
+
\begin{code}
-maybeCharLikeTyCon tc = if (uniqueOf tc == charDataConKey) then Just charDataCon else Nothing
-maybeIntLikeTyCon tc = if (uniqueOf tc == intDataConKey) then Just intDataCon else Nothing
+derivingOccurrences :: UniqFM [RdrName]
+derivingOccurrences = listToUFM deriving_occ_info
+
+derivableClassKeys = map fst deriving_occ_info
+
+deriving_occ_info
+ = [ (eqClassKey, [intTyCon_RDR, and_RDR, not_RDR])
+ , (ordClassKey, [intTyCon_RDR, compose_RDR])
+ , (enumClassKey, [intTyCon_RDR, map_RDR])
+ , (evalClassKey, [intTyCon_RDR])
+ , (boundedClassKey, [intTyCon_RDR])
+ , (showClassKey, [intTyCon_RDR, numClass_RDR, ordClass_RDR, compose_RDR, showString_RDR,
+ showParen_RDR, showSpace_RDR, showList___RDR])
+ , (readClassKey, [intTyCon_RDR, numClass_RDR, ordClass_RDR, append_RDR,
+ lex_RDR, readParen_RDR, readList___RDR])
+ , (ixClassKey, [intTyCon_RDR, numClass_RDR, and_RDR, map_RDR, enumFromTo_RDR])
+ ]
+ -- intTyCon: Practically any deriving needs Int, either for index calculations,
+ -- or for taggery.
+ -- ordClass: really it's the methods that are actually used.
+ -- numClass: for Int literals
+\end{code}
+
+
+NOTE: @Eq@ and @Text@ do need to appear in @standardClasses@
+even though every numeric class has these two as a superclass,
+because the list of ambiguous dictionaries hasn't been simplified.
+
+\begin{code}
+isCcallishClass, isNoDictClass, isNumericClass, isStandardClass :: Class -> Bool
+
+isNumericClass clas = classKey clas `is_elem` numericClassKeys
+isStandardClass clas = classKey clas `is_elem` standardClassKeys
+isCcallishClass clas = classKey clas `is_elem` cCallishClassKeys
+isNoDictClass clas = classKey clas `is_elem` noDictClassKeys
+is_elem = isIn "is_X_Class"
+
+numericClassKeys
+ = [ numClassKey
+ , realClassKey
+ , integralClassKey
+ , fractionalClassKey
+ , floatingClassKey
+ , realFracClassKey
+ , realFloatClassKey
+ ]
+
+needsDataDeclCtxtClassKeys -- see comments in TcDeriv
+ = [ readClassKey
+ ]
+
+cCallishClassKeys = [ cCallableClassKey, cReturnableClassKey ]
+
+standardClassKeys
+ = derivableClassKeys ++ numericClassKeys ++ cCallishClassKeys
+ --
+ -- We have to have "CCallable" and "CReturnable" in the standard
+ -- classes, so that if you go...
+ --
+ -- _ccall_ foo ... 93{-numeric literal-} ...
+ --
+ -- ... it can do The Right Thing on the 93.
+
+noDictClassKeys -- These classes are used only for type annotations;
+ -- they are not implemented by dictionaries, ever.
+ = cCallishClassKeys
+ -- I used to think that class Eval belonged in here, but
+ -- we really want functions with type (Eval a => ...) and that
+ -- means that we really want to pass a placeholder for an Eval
+ -- dictionary. The unit tuple is what we'll get if we leave things
+ -- alone, and that'll do for now. Could arrange to drop that parameter
+ -- in the end.
\end{code}
projects / ghc-hetmet.git / blobdiff