From ec3c7841346821c2d5342d0d9c3ff1ae4558aeb6 Mon Sep 17 00:00:00 2001
From: "andy@galois.com" <unknown>
Date: Wed, 25 Oct 2006 20:15:14 +0000
Subject: [PATCH] Adding arrows to the acceptable code for hpc

---
 compiler/deSugar/Coverage.lhs |   24 ++++++++++++++++--------
 compiler/deSugar/DsArrows.lhs |    6 ++++++
 2 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/compiler/deSugar/Coverage.lhs b/compiler/deSugar/Coverage.lhs
index 9a53b2b..36b0404 100644
--- a/compiler/deSugar/Coverage.lhs
+++ b/compiler/deSugar/Coverage.lhs
@@ -266,20 +266,28 @@ addTickHsExpr (HsWrap w e) =
 	liftM2 HsWrap
 		(return w)
 		(addTickHsExpr e)	-- explicitly no tick on inside
-addTickHsExpr (HsArrApp	 {}) = error "addTickHsExpr:  HsArrApp	"
-addTickHsExpr (HsArrForm {}) = error "addTickHsExpr:  HsArrForm"
+addTickHsExpr (HsArrApp	 e1 e2 ty1 arr_ty lr) = 
+        liftM5 HsArrApp
+	       (addTickLHsExpr e1)
+	       (addTickLHsExpr e2)
+	       (return ty1)
+	       (return arr_ty)
+	       (return lr)
+addTickHsExpr (HsArrForm e fix cmdtop) = 
+        liftM3 HsArrForm
+	       (addTickLHsExpr e)
+	       (return fix)
+	       (mapM (liftL addTickHsCmdTop) cmdtop)
+
+addTickHsExpr e@(HsType ty) = return e
+
+-- Should never happen in expression content.
 addTickHsExpr (EAsPat _ _) = error "addTickHsExpr: EAsPat _ _"
 addTickHsExpr (ELazyPat _) = error "addTickHsExpr: ELazyPat _"
 addTickHsExpr (EWildPat) = error "addTickHsExpr: EWildPat"
 addTickHsExpr (HsBinTick _ _ _) = error "addTickhsExpr: HsBinTick _ _ _"
 addTickHsExpr (HsTick _ _) = error "addTickhsExpr: HsTick _ _"
 
-addTickHsExpr e@(HsType ty) = return e
-
--- catch all, and give an error message.
---addTickHsExpr e = error ("addTickLhsExpr: " ++ showSDoc (ppr e))
-
-
 addTickMatchGroup (MatchGroup matches ty) = do
   let isOneOfMany = True -- AJG: for now
   matches' <- mapM (liftL (addTickMatch isOneOfMany)) matches
diff --git a/compiler/deSugar/DsArrows.lhs b/compiler/deSugar/DsArrows.lhs
index 4d9295d..e5b2b55 100644
--- a/compiler/deSugar/DsArrows.lhs
+++ b/compiler/deSugar/DsArrows.lhs
@@ -586,6 +586,12 @@ dsCmd _ids local_vars env_ids _stack _res_ty (HsArrForm op _ args)
     returnDs (mkApps (App core_op (Type env_ty)) core_args,
 	      unionVarSets fv_sets)
 
+
+dsCmd ids local_vars env_ids stack res_ty (HsTick ix expr)
+  = dsLCmd ids local_vars env_ids stack res_ty expr `thenDs` \ (expr1,id_set) ->
+    mkTickBox ix expr1                     	    `thenDs` \ expr2 ->
+    return (expr2,id_set)
+
 --	A | ys |- c :: [ts] t	(ys <= xs)
 --	---------------------
 --	A | xs |- c :: [ts] t	---> arr_ts (\ (xs) -> (ys)) >>> c
-- 
1.7.10.4