X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FdeSugar%2FDsExpr.lhs;h=8dfcd309caf41a8738142fa296096b92f5ccaf3b;hb=37507b3a4342773030ef538599363a5aff8b666a;hp=5fb0ec8f490b5d8b7cdccc79cd1b2ef0be6bee29;hpb=5c9c3660697f18ae9dcd95e254249d3dd908b94e;p=ghc-hetmet.git

diff --git a/compiler/deSugar/DsExpr.lhs b/compiler/deSugar/DsExpr.lhs
index 5fb0ec8..8dfcd30 100644
--- a/compiler/deSugar/DsExpr.lhs
+++ b/compiler/deSugar/DsExpr.lhs
@@ -220,7 +220,7 @@ dsExpr (HsApp (L _ (HsApp realFun@(L _ (HsCoerce _ fun)) (L loc arg))) _)
     | HsVar funId <- fun
     , idName funId `elem` [breakpointJumpName, breakpointCondJumpName]
     , ids <- filter (isValidType . idType) (extractIds arg)
-    = do dsWarn (text "Extracted ids:" <+> ppr ids <+> ppr (map idType ids))
+    = do warnDs (text "Extracted ids:" <+> ppr ids <+> ppr (map idType ids))
          stablePtr <- ioToIOEnv $ newStablePtr ids
          -- Yes, I know... I'm gonna burn in hell.
          let Ptr addr# = castStablePtrToPtr stablePtr
@@ -281,20 +281,10 @@ dsExpr (OpApp e1 op _ e2)
     dsLExpr e2				`thenDs` \ y_core ->
     returnDs (mkApps core_op [x_core, y_core])
     
-dsExpr (SectionL expr op)
-  = dsLExpr op						`thenDs` \ core_op ->
-    -- for the type of y, we need the type of op's 2nd argument
-    let
-	(x_ty:y_ty:_, _) = splitFunTys (exprType core_op)
-	-- Must look through an implicit-parameter type; 
-	-- newtype impossible; hence Type.splitFunTys
-    in
-    dsLExpr expr				`thenDs` \ x_core ->
-    newSysLocalDs x_ty			`thenDs` \ x_id ->
-    newSysLocalDs y_ty			`thenDs` \ y_id ->
-
-    returnDs (bindNonRec x_id x_core $
-	      Lam y_id (mkApps core_op [Var x_id, Var y_id]))
+dsExpr (SectionL expr op)	-- Desugar (e !) to ((!) e)
+  = dsLExpr op				`thenDs` \ core_op ->
+    dsLExpr expr			`thenDs` \ x_core ->
+    returnDs (App core_op x_core)
 
 -- dsLExpr (SectionR op expr)	-- \ x -> op x expr
 dsExpr (SectionR op expr)