X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2FdeSugar%2FDsMonad.lhs;h=a83a1f4a7b44dedd2bcdff86979edd844f90d111;hb=9fd23f53af8c45b75b8a4b01d0e6fa1ad6f34aa9;hp=1c6c033469c89177b9bd3605efaaf52ddcdb7daa;hpb=a61995821fca70c4d62769757d6808ebbc970e12;p=ghc-hetmet.git

diff --git a/ghc/compiler/deSugar/DsMonad.lhs b/ghc/compiler/deSugar/DsMonad.lhs
index 1c6c033..a83a1f4 100644
--- a/ghc/compiler/deSugar/DsMonad.lhs
+++ b/ghc/compiler/deSugar/DsMonad.lhs
@@ -13,36 +13,34 @@ module DsMonad (
 	duplicateLocalDs, newSysLocalDs, newSysLocalsDs,
 	newFailLocalDs,
 	getSrcLocDs, putSrcLocDs,
-	getModuleAndGroupDs,
+	getModuleDs,
 	getUniqueDs,
+	getDOptsDs,
 	dsLookupGlobalValue,
 
-	ValueEnv,
 	dsWarn, 
 	DsWarnings,
-	DsMatchContext(..), DsMatchKind(..)
+	DsMatchContext(..)
     ) where
 
 #include "HsVersions.h"
 
-import Bag		( emptyBag, snocBag, bagToList, Bag )
-import ErrUtils 	( WarnMsg, pprBagOfErrors )
-import HsSyn		( OutPat )
+import HsSyn		( HsMatchContext )
+import Bag		( emptyBag, snocBag, Bag )
+import ErrUtils 	( WarnMsg )
 import Id		( mkSysLocal, setIdUnique, Id )
 import Module		( Module )
-import Name		( Name, maybeWiredInIdName )
 import Var		( TyVar, setTyVarUnique )
-import VarEnv
 import Outputable
 import SrcLoc		( noSrcLoc, SrcLoc )
 import TcHsSyn		( TypecheckedPat )
-import TcEnv		( ValueEnv )
 import Type             ( Type )
 import UniqSupply	( initUs_, splitUniqSupply, uniqFromSupply, uniqsFromSupply,
 			  UniqSM, UniqSupply )
 import Unique		( Unique )
-import UniqFM		( lookupWithDefaultUFM )
 import Util		( zipWithEqual )
+import Name		( Name )
+import CmdLineOpts	( DynFlags )
 
 infixr 9 `thenDs`
 \end{code}
@@ -52,49 +50,49 @@ a @UniqueSupply@ and some annotations, which
 presumably include source-file location information:
 \begin{code}
 type DsM result =
-	UniqSupply
-        -> ValueEnv
-	-> SrcLoc		 -- to put in pattern-matching error msgs
-	-> (Module, Group)       -- module + group name : for SCC profiling
+	DynFlags
+	-> UniqSupply
+        -> (Name -> Id)		-- Lookup well-known Ids
+	-> SrcLoc		-- to put in pattern-matching error msgs
+	-> Module       	-- module: for SCC profiling
 	-> DsWarnings
 	-> (result, DsWarnings)
 
 type DsWarnings = Bag WarnMsg           -- The desugarer reports matches which are
 					-- completely shadowed or incomplete patterns
 
-type Group = FAST_STRING
-
 {-# INLINE andDs #-}
 {-# INLINE thenDs #-}
 {-# INLINE returnDs #-}
 
 -- initDs returns the UniqSupply out the end (not just the result)
 
-initDs  :: UniqSupply
-	-> ValueEnv
-	-> (Module, Group)      -- module name: for profiling; (group name: from switches)
+initDs  :: DynFlags
+	-> UniqSupply
+	-> (Name -> Id)
+	-> Module   -- module name: for profiling
 	-> DsM a
 	-> (a, DsWarnings)
 
-initDs init_us genv module_and_group action
-  = action init_us genv noSrcLoc module_and_group emptyBag
+initDs dflags init_us lookup mod action
+  = action dflags init_us lookup noSrcLoc mod emptyBag
 
 thenDs :: DsM a -> (a -> DsM b) -> DsM b
 andDs  :: (a -> a -> a) -> DsM a -> DsM a -> DsM a
 
-thenDs m1 m2 us genv loc mod_and_grp warns
+thenDs m1 m2 dflags us genv loc mod warns
   = case splitUniqSupply us		    of { (s1, s2) ->
-    case (m1 s1 genv loc mod_and_grp warns)  of { (result, warns1) ->
-    m2 result s2 genv loc mod_and_grp warns1}}
+    case (m1 dflags s1 genv loc mod warns)  of { (result, warns1) ->
+    m2 result dflags s2 genv loc mod warns1}}
 
-andDs combiner m1 m2 us genv loc mod_and_grp warns
+andDs combiner m1 m2 dflags us genv loc mod warns
   = case splitUniqSupply us		    of { (s1, s2) ->
-    case (m1 s1 genv loc mod_and_grp warns)  of { (result1, warns1) ->
-    case (m2 s2 genv loc mod_and_grp warns1) of { (result2, warns2) ->
+    case (m1 dflags s1 genv loc mod warns)  of { (result1, warns1) ->
+    case (m2 dflags s2 genv loc mod warns1) of { (result2, warns2) ->
     (combiner result1 result2, warns2) }}}
 
 returnDs :: a -> DsM a
-returnDs result us genv loc mod_and_grp warns = (result, warns)
+returnDs result dflags us genv loc mod warns = (result, warns)
 
 listDs :: [DsM a] -> DsM [a]
 listDs []     = returnDs []
@@ -141,29 +139,33 @@ it easier to read debugging output.
 
 \begin{code}
 newSysLocalDs, newFailLocalDs :: Type -> DsM Id
-newSysLocalDs ty us genv loc mod_and_grp warns
+newSysLocalDs ty dflags us genv loc mod warns
   = case uniqFromSupply us of { assigned_uniq ->
     (mkSysLocal SLIT("ds") assigned_uniq ty, warns) }
 
 newSysLocalsDs tys = mapDs newSysLocalDs tys
 
-newFailLocalDs ty us genv loc mod_and_grp warns
+newFailLocalDs ty dflags us genv loc mod warns
   = case uniqFromSupply us of { assigned_uniq ->
     (mkSysLocal SLIT("fail") assigned_uniq ty, warns) }
 	-- The UserLocal bit just helps make the code a little clearer
 
 getUniqueDs :: DsM Unique
-getUniqueDs us genv loc mod_and_grp warns
+getUniqueDs dflags us genv loc mod warns
   = case (uniqFromSupply us) of { assigned_uniq ->
     (assigned_uniq, warns) }
 
+getDOptsDs :: DsM DynFlags
+getDOptsDs dflags us genv loc mod warns
+  = (dflags, warns)
+
 duplicateLocalDs :: Id -> DsM Id
-duplicateLocalDs old_local us genv loc mod_and_grp warns
+duplicateLocalDs old_local dflags us genv loc mod warns
   = case uniqFromSupply us of { assigned_uniq ->
     (setIdUnique old_local assigned_uniq, warns) }
 
 cloneTyVarsDs :: [TyVar] -> DsM [TyVar]
-cloneTyVarsDs tyvars us genv loc mod_and_grp warns
+cloneTyVarsDs tyvars dflags us genv loc mod warns
   = case uniqsFromSupply (length tyvars) us of { uniqs ->
     (zipWithEqual "cloneTyVarsDs" setTyVarUnique tyvars uniqs, warns) }
 \end{code}
@@ -171,7 +173,7 @@ cloneTyVarsDs tyvars us genv loc mod_and_grp warns
 \begin{code}
 newTyVarsDs :: [TyVar] -> DsM [TyVar]
 
-newTyVarsDs tyvar_tmpls us genv loc mod_and_grp warns
+newTyVarsDs tyvar_tmpls dflags us genv loc mod warns
   = case uniqsFromSupply (length tyvar_tmpls) us of { uniqs ->
     (zipWithEqual "newTyVarsDs" setTyVarUnique tyvar_tmpls uniqs, warns) }
 \end{code}
@@ -181,36 +183,31 @@ the @SrcLoc@ being carried around.
 \begin{code}
 uniqSMtoDsM :: UniqSM a -> DsM a
 
-uniqSMtoDsM u_action us genv loc mod_and_grp warns
+uniqSMtoDsM u_action dflags us genv loc mod warns
   = (initUs_ us u_action, warns)
 
 getSrcLocDs :: DsM SrcLoc
-getSrcLocDs us genv loc mod_and_grp warns
+getSrcLocDs dflags us genv loc mod warns
   = (loc, warns)
 
 putSrcLocDs :: SrcLoc -> DsM a -> DsM a
-putSrcLocDs new_loc expr us genv old_loc mod_and_grp warns
-  = expr us genv new_loc mod_and_grp warns
+putSrcLocDs new_loc expr dflags us genv old_loc mod warns
+  = expr dflags us genv new_loc mod warns
 
 dsWarn :: WarnMsg -> DsM ()
-dsWarn warn us genv loc mod_and_grp warns = ((), warns `snocBag` warn)
+dsWarn warn dflags us genv loc mod warns = ((), warns `snocBag` warn)
 
 \end{code}
 
 \begin{code}
-getModuleAndGroupDs :: DsM (Module, Group)
-getModuleAndGroupDs us genv loc mod_and_grp warns
-  = (mod_and_grp, warns)
+getModuleDs :: DsM Module
+getModuleDs dflags us genv loc mod warns = (mod, warns)
 \end{code}
 
 \begin{code}
 dsLookupGlobalValue :: Name -> DsM Id
-dsLookupGlobalValue name us genv loc mod_and_grp warns
-  = case maybeWiredInIdName name of
-	Just id -> (id, warns)
-	Nothing -> (lookupWithDefaultUFM genv def name, warns)
-  where
-    def = pprPanic "tcLookupGlobalValue:" (ppr name)
+dsLookupGlobalValue name dflags us genv loc mod warns
+  = (genv name, warns)
 \end{code}
 
 
@@ -222,17 +219,7 @@ dsLookupGlobalValue name us genv loc mod_and_grp warns
 
 \begin{code}
 data DsMatchContext
-  = DsMatchContext DsMatchKind [TypecheckedPat] SrcLoc
+  = DsMatchContext HsMatchContext [TypecheckedPat] SrcLoc
   | NoMatchContext
   deriving ()
-
-data DsMatchKind
-  = FunMatch Id
-  | CaseMatch
-  | LambdaMatch
-  | PatBindMatch
-  | DoBindMatch
-  | ListCompMatch
-  | LetMatch
-  deriving ()
 \end{code}