From a6b3cd493c0069eab8c0341783c42fb1b859964b Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Thu, 10 May 2012 03:01:34 +0000
Subject: Warn about visibility attributes in typedefs.

llvm-svn: 156534
---
 clang/lib/Sema/SemaDeclAttr.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'clang/lib/Sema/SemaDeclAttr.cpp')

diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index 280e3d7fca4..9cd72b2e1ef 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -1857,6 +1857,10 @@ static void handleAvailabilityAttr(Sema &S, Decl *D,
 bool Sema::mergeVisibilityAttr(Decl *D, SourceRange Range,
                                bool Inherited,
                                VisibilityAttr::VisibilityType Vis) {
+  if (isa<TypedefNameDecl>(D)) {
+    Diag(Range.getBegin(), diag::warn_attribute_ignored) << "visibility";
+    return false;
+  }
   VisibilityAttr *ExistingAttr = D->getAttr<VisibilityAttr>();
   if (ExistingAttr) {
     VisibilityAttr::VisibilityType ExistingVis = ExistingAttr->getVisibility();
-- 
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