From 882593f8f0e3382878a4a0a19272c88d9353ce74 Mon Sep 17 00:00:00 2001
From: Richard Smith <richard-llvm@metafoo.co.uk>
Date: Wed, 6 Apr 2016 17:38:58 +0000
Subject: Diagnose template alias declarations in local classes.

Patch by Erik Pilkington!

llvm-svn: 265571
---
 clang/lib/Sema/SemaDeclCXX.cpp | 4 ++++
 1 file changed, 4 insertions(+)

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

diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index e7c3b6af027..995378c073b 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -8585,6 +8585,10 @@ Decl *Sema::ActOnAliasDeclaration(Scope *S,
     }
     TemplateParameterList *TemplateParams = TemplateParamLists[0];
 
+    // Check that we can declare a template here.
+    if (CheckTemplateDeclScope(S, TemplateParams))
+      return nullptr;
+
     // Only consider previous declarations in the same scope.
     FilterLookupForScope(Previous, CurContext, S, /*ConsiderLinkage*/false,
                          /*ExplicitInstantiationOrSpecialization*/false);
-- 
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