From 2fbb4d751b0fc9ce11632570f71e267420d36384 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Sat, 26 Mar 2011 05:45:31 +0000
Subject: [PATCH] Better error when setting const to nil.

From-SVN: r171541
---
 gcc/go/gofrontend/gogo.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/go/gofrontend/gogo.cc b/gcc/go/gofrontend/gogo.cc
index a09ffb3aaec..9001d2b9ea7 100644
--- a/gcc/go/gofrontend/gogo.cc
+++ b/gcc/go/gofrontend/gogo.cc
@@ -1527,7 +1527,9 @@ Check_types_traverse::constant(Named_object* named_object, bool)
       && !ctype->is_boolean_type()
       && !ctype->is_string_type())
     {
-      if (!ctype->is_error())
+      if (ctype->is_nil_type())
+	error_at(constant->location(), "const initializer cannot be nil");
+      else if (!ctype->is_error())
 	error_at(constant->location(), "invalid constant type");
       constant->set_error();
     }
-- 
2.30.2