Extend the local bindings at a breakpoint with one for the wrapped expression

[ghc-hetmet.git] / compiler / deSugar / DsExpr.lhs

diff --git a/compiler/deSugar/DsExpr.lhs b/compiler/deSugar/DsExpr.lhs
index adf4c3d..23db23f 100644 (file)
--- a/compiler/deSugar/DsExpr.lhs
+++ b/compiler/deSugar/DsExpr.lhs
@@ -192,12 +192,16 @@ dsLExpr :: LHsExpr Id -> DsM CoreExpr
 #if defined(GHCI)
 dsLExpr (L loc expr@(HsWrap w (HsVar v)))
     | idName v `elem` [breakpointName, breakpointCondName, breakpointAutoName]
+    , WpTyApp ty <- simpWrapper w
     = do areBreakpointsEnabled <- breakpoints_enabled
          if areBreakpointsEnabled
            then do
-              L _ breakpointExpr <- mkBreakpointExpr loc v
+              L _ breakpointExpr <- mkBreakpointExpr loc v ty
               dsLExpr (L loc $ HsWrap w breakpointExpr)
            else putSrcSpanDs loc $ dsExpr expr
+       where simpWrapper (WpCompose w1 WpHole) = w1
+             simpWrapper (WpCompose WpHole w1) = w1
+             simpWrapper w = w
 #endif
 
 dsLExpr (L loc e) = putSrcSpanDs loc $ dsExpr e