From 209bd25b3c492108dc4ff401d167c367719c9aab Mon Sep 17 00:00:00 2001
From: Anna Zaks <ganna@apple.com>
Date: Sat, 19 May 2012 00:22:11 +0000
Subject: [PATCH] [analyzer] c++11: do not crash on namespace alias

llvm-svn: 157089
---
 .../clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h |  2 ++
 clang/test/Analysis/cxx11-crashes.cpp               | 21 +++++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/clang/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h b/clang/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h
index 97eb287..c510e20 100644
--- a/clang/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h
+++ b/clang/include/clang/Analysis/Visitors/CFGRecStmtDeclVisitor.h
@@ -69,6 +69,7 @@ public:
         DISPATCH_CASE(Field)
         DISPATCH_CASE(UsingDirective)
         DISPATCH_CASE(Using)
+        DISPATCH_CASE(NamespaceAlias)
       default:
         llvm_unreachable("Subtype of ScopedDecl not handled.");
     }
@@ -90,6 +91,7 @@ public:
   DEFAULT_DISPATCH(ObjCCategory)
   DEFAULT_DISPATCH(UsingDirective)
   DEFAULT_DISPATCH(Using)
+  DEFAULT_DISPATCH(NamespaceAlias)
 
   void VisitCXXRecordDecl(CXXRecordDecl *D) {
     static_cast<ImplClass*>(this)->VisitRecordDecl(D);
diff --git a/clang/test/Analysis/cxx11-crashes.cpp b/clang/test/Analysis/cxx11-crashes.cpp
index 9164850..6e60ac6 100644
--- a/clang/test/Analysis/cxx11-crashes.cpp
+++ b/clang/test/Analysis/cxx11-crashes.cpp
@@ -10,3 +10,24 @@ PlotPoint limitedFit () {
   fit0 = limitedFit ();
   return fit0;
 }
+
+// radar://11487541, NamespaceAlias
+namespace boost {namespace filesystem3 {
+class path {
+public:
+ path(){}
+};
+
+}}
+namespace boost
+{
+  namespace filesystem
+  {
+    using filesystem3::path;
+  }
+}
+
+void radar11487541() {
+  namespace fs = boost::filesystem;
+  fs::path p;
+}
-- 
2.7.4