X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FdeSugar%2FDsMonad.lhs;h=a38b291bc8429dc769e14b7a4e385e750c65df9b;hb=a8427a4125e9b78e88a487eeabf018f1c6e8bc08;hp=ac6a0c0ed79b25129b55f61e5f2ee13aa3dc375b;hpb=cdce647711c0f46f5799b24de087622cb77e647f;p=ghc-hetmet.git

diff --git a/compiler/deSugar/DsMonad.lhs b/compiler/deSugar/DsMonad.lhs
index ac6a0c0..a38b291 100644
--- a/compiler/deSugar/DsMonad.lhs
+++ b/compiler/deSugar/DsMonad.lhs
@@ -20,10 +20,10 @@ module DsMonad (
 	UniqSupply, newUniqueSupply,
 	getDOptsDs, getGhcModeDs, doptDs,
 	dsLookupGlobal, dsLookupGlobalId, dsLookupTyCon, dsLookupDataCon,
+        dsLookupClass,
 
 	DsMetaEnv, DsMetaVal(..), dsLookupMetaEnv, dsExtendMetaEnv,
 
-        bindLocalsDs, getLocalBindsDs,
 	-- Warnings
 	DsWarning, warnDs, failWithDs,
 
@@ -44,6 +44,7 @@ import HscTypes
 import Bag
 import DataCon
 import TyCon
+import Class
 import Id
 import Module
 import Var
@@ -56,8 +57,6 @@ import NameEnv
 import OccName
 import DynFlags
 import ErrUtils
-import Bag
-import OccName
 
 import Data.IORef
 
@@ -141,8 +140,7 @@ data DsGblEnv = DsGblEnv {
 
 data DsLclEnv = DsLclEnv {
 	ds_meta	   :: DsMetaEnv,	-- Template Haskell bindings
-	ds_loc	   :: SrcSpan,		-- to put in pattern-matching error msgs
-        ds_locals  :: OccEnv Id         -- For locals in breakpoints
+	ds_loc	   :: SrcSpan		-- to put in pattern-matching error msgs
      }
 
 -- Inside [| |] brackets, the desugarer looks 
@@ -207,8 +205,7 @@ mkDsEnvs mod rdr_env type_env msg_var
     			            ds_unqual = mkPrintUnqualified rdr_env,
     			            ds_msgs = msg_var}
                lcl_env = DsLclEnv { ds_meta = emptyNameEnv, 
-			            ds_loc = noSrcSpan,
-                                    ds_locals = emptyOccEnv }
+			            ds_loc = noSrcSpan }
 
        return (gbl_env, lcl_env)
 
@@ -319,6 +316,11 @@ dsLookupDataCon :: Name -> DsM DataCon
 dsLookupDataCon name
   = dsLookupGlobal name		`thenDs` \ thing ->
     returnDs (tyThingDataCon thing)
+
+dsLookupClass :: Name -> DsM Class
+dsLookupClass name
+  = dsLookupGlobal name         `thenDs` \ thing ->
+    returnDs (tyThingClass thing)
 \end{code}
 
 \begin{code}
@@ -329,15 +331,3 @@ dsExtendMetaEnv :: DsMetaEnv -> DsM a -> DsM a
 dsExtendMetaEnv menv thing_inside
   = updLclEnv (\env -> env { ds_meta = ds_meta env `plusNameEnv` menv }) thing_inside
 \end{code}
-
-\begin{code}
-getLocalBindsDs :: DsM [Id]
-getLocalBindsDs = do { env <- getLclEnv; return (occEnvElts$ ds_locals env) }
-
-bindLocalsDs :: [Id] -> DsM a -> DsM a
-bindLocalsDs new_ids enclosed_scope = 
-    updLclEnv (\env-> env {ds_locals = ds_locals env `extendOccEnvList` occnamed_ids})
-	      enclosed_scope
-  where occnamed_ids = [ (nameOccName (idName id),id) | id <- new_ids ] 
-\end{code}
-