-{-% DrIFT (Automatic class derivations for Haskell) v1.1 %-}
%
+% (c) The University of Glasgow 2006
% (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
%
-\section[OccName]{@OccName@}
-
\begin{code}
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module OccName (
-- * The NameSpace type; abstact
NameSpace, tcName, clsName, tcClsName, dataName, varName,
setOccNameSpace,
-- ** Derived OccNames
- mkDataConWrapperOcc, mkWorkerOcc, mkDefaultMethodOcc, mkDerivedTyConOcc,
- mkNewTyCoOcc,
+ mkDataConWrapperOcc, mkWorkerOcc, mkDefaultMethodOcc,
+ mkDerivedTyConOcc, mkNewTyCoOcc,
mkClassTyConOcc, mkClassDataConOcc, mkDictOcc, mkIPOcc,
mkSpecOcc, mkForeignExportOcc, mkGenOcc1, mkGenOcc2,
mkDataTOcc, mkDataCOcc, mkDataConWorkerOcc,
- mkSuperDictSelOcc, mkLocalOcc, mkMethodOcc,
+ mkSuperDictSelOcc, mkLocalOcc, mkMethodOcc, mkInstTyTcOcc,
+ mkInstTyCoOcc, mkEqPredCoOcc,
+ mkVectOcc, mkVectTyConOcc, mkVectDataConOcc, mkVectIsoOcc,
+ mkPArrayTyConOcc, mkPArrayDataConOcc,
+ mkPReprTyConOcc,
+ mkPADFunOcc,
-- ** Deconstruction
occNameFS, occNameString, occNameSpace,
-- The OccEnv type
OccEnv, emptyOccEnv, unitOccEnv, extendOccEnv, mapOccEnv,
- lookupOccEnv, mkOccEnv, extendOccEnvList, elemOccEnv,
+ lookupOccEnv, mkOccEnv, mkOccEnv_C, extendOccEnvList, elemOccEnv,
occEnvElts, foldOccEnv, plusOccEnv, plusOccEnv_C, extendOccEnv_C,
+ filterOccEnv, delListFromOccEnv, delFromOccEnv,
-- The OccSet type
OccSet, emptyOccSet, unitOccSet, mkOccSet, extendOccSet,
extendOccSetList,
unionOccSets, unionManyOccSets, minusOccSet, elemOccSet, occSetElts,
foldOccSet, isEmptyOccSet, intersectOccSet, intersectsOccSet,
-
+
-- Tidying up
TidyOccEnv, emptyTidyOccEnv, tidyOccName, initTidyOccEnv,
#include "HsVersions.h"
-import Util ( thenCmp )
-import Unique ( Unique, mkUnique, Uniquable(..) )
-import BasicTypes ( Boxity(..), Arity )
-import StaticFlags ( opt_PprStyle_Debug )
+import Util
+import Unique
+import BasicTypes
+import StaticFlags
import UniqFM
import UniqSet
import FastString
import Outputable
import Binary
-import GLAEXTS
-
-import Data.Char ( isUpper, isLower, ord )
+import GHC.Exts
+import Data.Char
-- Unicode TODO: put isSymbol in libcompat
#if __GLASGOW_HASKELL__ > 604
-import Data.Char ( isSymbol )
#else
isSymbol = const False
#endif
%************************************************************************
\begin{code}
-data NameSpace = VarName -- Variables, including "source" data constructors
- | DataName -- "Real" data constructors
+data NameSpace = VarName -- Variables, including "real" data constructors
+ | DataName -- "Source" data constructors
| TvName -- Type variables
| TcClsName -- Type constructors and classes; Haskell has them
-- in the same name space for now.
(OccName sp1 s1) == (OccName sp2 s2) = s1 == s2 && sp1 == sp2
instance Ord OccName where
- compare (OccName sp1 s1) (OccName sp2 s2) = (s1 `compare` s2) `thenCmp`
- (sp1 `compare` sp2)
+ -- Compares lexicographically, *not* by Unique of the string
+ compare (OccName sp1 s1) (OccName sp2 s2)
+ = (s1 `compare` s2) `thenCmp` (sp1 `compare` sp2)
\end{code}
TvName -> 'v'
TcClsName -> 't'
-type OccEnv a = UniqFM a
+newtype OccEnv a = A (UniqFM a)
emptyOccEnv :: OccEnv a
unitOccEnv :: OccName -> a -> OccEnv a
extendOccEnvList :: OccEnv a -> [(OccName, a)] -> OccEnv a
lookupOccEnv :: OccEnv a -> OccName -> Maybe a
mkOccEnv :: [(OccName,a)] -> OccEnv a
+mkOccEnv_C :: (a -> a -> a) -> [(OccName,a)] -> OccEnv a
elemOccEnv :: OccName -> OccEnv a -> Bool
foldOccEnv :: (a -> b -> b) -> b -> OccEnv a -> b
occEnvElts :: OccEnv a -> [a]
plusOccEnv :: OccEnv a -> OccEnv a -> OccEnv a
plusOccEnv_C :: (a->a->a) -> OccEnv a -> OccEnv a -> OccEnv a
mapOccEnv :: (a->b) -> OccEnv a -> OccEnv b
-
-emptyOccEnv = emptyUFM
-unitOccEnv = unitUFM
-extendOccEnv = addToUFM
-extendOccEnvList = addListToUFM
-lookupOccEnv = lookupUFM
-mkOccEnv = listToUFM
-elemOccEnv = elemUFM
-foldOccEnv = foldUFM
-occEnvElts = eltsUFM
-plusOccEnv = plusUFM
-plusOccEnv_C = plusUFM_C
-extendOccEnv_C = addToUFM_C
-mapOccEnv = mapUFM
+delFromOccEnv :: OccEnv a -> OccName -> OccEnv a
+delListFromOccEnv :: OccEnv a -> [OccName] -> OccEnv a
+filterOccEnv :: (elt -> Bool) -> OccEnv elt -> OccEnv elt
+
+emptyOccEnv = A emptyUFM
+unitOccEnv x y = A $ unitUFM x y
+extendOccEnv (A x) y z = A $ addToUFM x y z
+extendOccEnvList (A x) l = A $ addListToUFM x l
+lookupOccEnv (A x) y = lookupUFM x y
+mkOccEnv l = A $ listToUFM l
+elemOccEnv x (A y) = elemUFM x y
+foldOccEnv a b (A c) = foldUFM a b c
+occEnvElts (A x) = eltsUFM x
+plusOccEnv (A x) (A y) = A $ plusUFM x y
+plusOccEnv_C f (A x) (A y) = A $ plusUFM_C f x y
+extendOccEnv_C f (A x) y z = A $ addToUFM_C f x y z
+mapOccEnv f (A x) = A $ mapUFM f x
+mkOccEnv_C comb l = A $ addListToUFM_C comb emptyUFM l
+delFromOccEnv (A x) y = A $ delFromUFM x y
+delListFromOccEnv (A x) y = A $ delListFromUFM x y
+filterOccEnv x (A y) = A $ filterUFM x y
+
+instance Outputable a => Outputable (OccEnv a) where
+ ppr (A x) = ppr x
type OccSet = UniqFM OccName
isSymOcc (OccName DataName s) = isLexConSym s
isSymOcc (OccName TcClsName s) = isLexConSym s
isSymOcc (OccName VarName s) = isLexSym s
-isSymOcc other = False
+isSymOcc (OccName TvName s) = isLexSym s
parenSymOcc :: OccName -> SDoc -> SDoc
-- Wrap parens around an operator
$w... workers
:T... compiler-generated tycons for dictionaries
:D... ...ditto data cons
+ :Co... ...ditto coercions
$sf.. specialised version of f
in encoded form these appear as Zdfxxx etc
mkIPOcc = mk_simple_deriv varName "$i"
mkSpecOcc = mk_simple_deriv varName "$s"
mkForeignExportOcc = mk_simple_deriv varName "$f"
-mkNewTyCoOcc = mk_simple_deriv tcName "Co"
+mkNewTyCoOcc = mk_simple_deriv tcName ":Co"
+mkInstTyCoOcc = mk_simple_deriv tcName ":CoF" -- derived from rep ty
+mkEqPredCoOcc = mk_simple_deriv tcName "$co"
-- Generic derivable classes
mkGenOcc1 = mk_simple_deriv varName "$gfrom"
mkDataTOcc = mk_simple_deriv varName "$t"
mkDataCOcc = mk_simple_deriv varName "$c"
+-- Vectorisation
+mkVectOcc = mk_simple_deriv varName "$v_"
+mkVectTyConOcc = mk_simple_deriv tcName ":V_"
+mkVectDataConOcc = mk_simple_deriv dataName ":VD_"
+mkVectIsoOcc = mk_simple_deriv varName "$VI_"
+mkPArrayTyConOcc = mk_simple_deriv tcName ":VP_"
+mkPArrayDataConOcc = mk_simple_deriv dataName ":VPD_"
+mkPReprTyConOcc = mk_simple_deriv tcName ":VR_"
+mkPADFunOcc = mk_simple_deriv varName "$PA_"
+
mk_simple_deriv sp px occ = mk_deriv sp px (occNameString occ)
-- Data constructor workers are made by setting the name space
-- that need encoding (e.g. 'z'!)
\end{code}
+Derive a name for the representation type constructor of a data/newtype
+instance.
+
+\begin{code}
+mkInstTyTcOcc :: Int -- Index
+ -> OccName -- Family name (e.g. "Map")
+ -> OccName -- Nice unique version (":R23Map")
+mkInstTyTcOcc index occ
+ = mk_deriv tcName (":R" ++ show index) (occNameString occ)
+\end{code}
\begin{code}
mkDFunOcc :: String -- Typically the class and type glommed together e.g. "OrdMaybe"
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