From a869874499b802e10d2cda5fa9b2d055cd97c745 Mon Sep 17 00:00:00 2001
From: Ken Thompson <ken@golang.org>
Date: Mon, 28 Jun 2010 16:30:55 -0700
Subject: compiler fatal error in switch. fixes issue 867.

R=rsc
CC=golang-dev
http://codereview.appspot.com/1691045
---
 src/cmd/gc/swt.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/cmd/gc/swt.c b/src/cmd/gc/swt.c
index 2ed8216bc..fbc9c4903 100644
--- a/src/cmd/gc/swt.c
+++ b/src/cmd/gc/swt.c
@@ -777,11 +777,12 @@ typeswitch(Node *sw)
 		// binary search among cases to narrow by hash
 		cas = list(cas, typebsw(c1, ncase));
 	}
-	
-	cas = list(cas, def);
-	sw->nbody = concat(cas, sw->nbody);
-	sw->list = nil;
-	walkstmtlist(sw->nbody);
+	if(nerrors == 0) {
+		cas = list(cas, def);
+		sw->nbody = concat(cas, sw->nbody);
+		sw->list = nil;
+		walkstmtlist(sw->nbody);
+	}
 }
 
 void
-- 
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