From: Simon Marlow <marlowsd@gmail.com>
Date: Mon, 8 Jun 2009 08:27:05 +0000 (+0000)
Subject: pprExpr: don't add extra parens around [a..b] in an argument position
X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=commitdiff_plain;h=340fb6fe7e6d31f73e8610d7f6fa3984555470fb

pprExpr: don't add extra parens around [a..b] in an argument position
test is tcfail205
---

diff --git a/compiler/hsSyn/HsExpr.lhs b/compiler/hsSyn/HsExpr.lhs
index 2ddb7c8..db54ab8 100644
--- a/compiler/hsSyn/HsExpr.lhs
+++ b/compiler/hsSyn/HsExpr.lhs
@@ -529,6 +529,8 @@ pprParendExpr expr
         -- I think that is usually (always?) right
     in
     case unLoc expr of
+      ArithSeq{}           -> pp_as_was
+      PArrSeq{}            -> pp_as_was
       HsLit _              -> pp_as_was
       HsOverLit _          -> pp_as_was
       HsVar _              -> pp_as_was