X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FbasicTypes%2FOccName.lhs;h=8298f5965d69dcd6df7821df7115a1a54b1d7ff2;hb=235edf36cc202bb21c00d0e5e05ebf076fb0542e;hp=48137c6ea210da3d314bad4525cd719af64b9bed;hpb=d5bba9ee196f64a077e922680b16fe6f28fb79db;p=ghc-hetmet.git

diff --git a/compiler/basicTypes/OccName.lhs b/compiler/basicTypes/OccName.lhs
index 48137c6..8298f59 100644
--- a/compiler/basicTypes/OccName.lhs
+++ b/compiler/basicTypes/OccName.lhs
@@ -1,11 +1,16 @@
-{-% 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, 
@@ -27,12 +32,17 @@ module OccName (
 	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, 
@@ -44,15 +54,16 @@ module OccName (
 
 	-- 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,
 
@@ -64,23 +75,22 @@ module OccName (
 
 #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 FastTypes
 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 )
+#if !defined(__GLASGOW_HASKELL__) || __GLASGOW_HASKELL__ > 604
 #else
 isSymbol = const False
 #endif
@@ -94,8 +104,8 @@ isSymbol = const False
 %************************************************************************
 
 \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.
@@ -178,8 +188,9 @@ instance Eq OccName where
     (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}
 
 
@@ -245,7 +256,7 @@ easy to build an OccEnv.
 \begin{code}
 instance Uniquable OccName where
   getUnique (OccName ns fs)
-      = mkUnique char (I# (uniqueOfFS fs))
+      = mkUnique char (iBox (uniqueOfFS fs))
       where	-- See notes above about this getUnique function
         char = case ns of
 		VarName   -> 'i'
@@ -253,7 +264,7 @@ instance Uniquable OccName where
 		TvName    -> 'v'
 		TcClsName -> 't'
 
-type OccEnv a = UniqFM a
+newtype OccEnv a = A (UniqFM a)
 
 emptyOccEnv :: OccEnv a
 unitOccEnv  :: OccName -> a -> OccEnv a
@@ -261,6 +272,7 @@ extendOccEnv :: OccEnv a -> 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]
@@ -268,20 +280,30 @@ extendOccEnv_C :: (a->a->a) -> OccEnv a -> OccName -> a -> OccEnv 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
 
@@ -364,7 +386,7 @@ isDataOcc other		       = False
 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
@@ -400,6 +422,7 @@ Here's our convention for splitting up the interface file name space:
 	$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
@@ -441,7 +464,9 @@ mkDictOcc	    = mk_simple_deriv varName  "$d"
 mkIPOcc		    = mk_simple_deriv varName  "$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  "$gfrom"
@@ -453,6 +478,16 @@ mkGenOcc2           = mk_simple_deriv varName  "$gto"
 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
@@ -477,6 +512,16 @@ mkLocalOcc uniq occ
 	-- 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"