From df4e13fc6f98ac689238ba325c7b276bbd8e568c Mon Sep 17 00:00:00 2001
From: sof <unknown>
Date: Thu, 21 Jan 1999 20:00:55 +0000
Subject: [PATCH] [project @ 1999-01-21 20:00:55 by sof] dsExpr: make sure
 special case for unboxed tuple patterns only 'fire' when
 the tup. pat. is unboxed.

---
 ghc/compiler/deSugar/DsExpr.lhs |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ghc/compiler/deSugar/DsExpr.lhs b/ghc/compiler/deSugar/DsExpr.lhs
index afdf166..622b4ef 100644
--- a/ghc/compiler/deSugar/DsExpr.lhs
+++ b/ghc/compiler/deSugar/DsExpr.lhs
@@ -306,10 +306,10 @@ dsExpr (HsSCC cc expr)
     getModuleAndGroupDs		`thenDs` \ (mod_name, group_name) ->
     returnDs (Note (SCC (mkUserCC cc mod_name group_name)) core_expr)
 
--- special case to handle unboxed tuple patterns
+-- special case to handle unboxed tuple patterns.
 
 dsExpr (HsCase discrim matches@[Match _ [TuplePat ps boxed] _ _] src_loc)
- | all var_pat ps 
+ | not boxed && all var_pat ps 
  =  putSrcLocDs src_loc $
     dsExpr discrim				`thenDs` \ core_discrim ->
     matchWrapper CaseMatch matches "case"	`thenDs` \ ([discrim_var], matching_code) ->
-- 
1.7.10.4