1 files changed, 127 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/namespace-alias.cpp b/clang/test/SemaCXX/namespace-alias.cpp
new file mode 100644
index 0000000..e18b58b
--- /dev/null
+++ b/clang/test/SemaCXX/namespace-alias.cpp
@@ -0,0 +1,127 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+namespace N { struct X { }; };
+
+namespace A = N;
+
+int B; // expected-note {{previous definition is here}}
+namespace B = N; // expected-error {{redefinition of 'B' as different kind of symbol}}
+
+namespace C { } // expected-note {{previous definition is here}}
+namespace C = N; // expected-error {{redefinition of 'C'}}
+
+int i;
+namespace D =
+i; // expected-error {{expected namespace name}}
+
+namespace E1 = N::
+Foo; // expected-error {{expected namespace name}}
+namespace E2 = N::
+X; // expected-error {{expected namespace name}}
+
+namespace F {
+  namespace A { namespace B { } } // expected-note {{candidate found by name lookup is 'F::A::B'}}
+  namespace B { } // expected-note {{candidate found by name lookup is 'F::B'}}
+  using namespace A;
+  namespace D = B; // expected-error {{reference to 'B' is ambiguous}}
+}
+
+namespace G { 
+  namespace B = N;
+}
+
+namespace H {
+  namespace A1 { }
+  namespace A2 { }
+
+  // These all point to A1.
+  namespace B = A1; // expected-note {{previous definition is here}}
+  namespace B = A1;
+  namespace C = B;
+  namespace B = C;
+
+  namespace B = A2; // expected-error {{redefinition of 'B' as different kind of symbol}}
+}
+
+namespace I { 
+  namespace A1 { int i; }
+  
+  namespace A2 = A1;
+}
+
+int f() {
+  return I::A2::i;
+}
+
+namespace J {
+  namespace A { 
+    namespace B { void func (); }
+  }
+
+  namespace C = A;
+
+  using namespace C::B;
+
+  void g() {
+    func();
+  }
+}
+
+namespace K {
+  namespace KA { void func(); }
+
+  void f() {
+    namespace KB = KA;
+    KB::func();
+  }
+
+  template <class T> void g() {
+    namespace KC = KA;
+    KC::func();
+  }
+  template void g<int>();
+  template void g<long>();
+
+  void h() {
+    KB::func(); // expected-error {{undeclared identifier 'KB'}}
+    KC::func(); // expected-error {{undeclared identifier 'KC'}}
+  }
+}
+
+namespace {
+  class C1;
+}
+namespace {
+  class C1;
+}
+C1 *pc1 = 0;
+
+namespace N {
+  namespace {
+    class C2;
+  }
+}
+namespace N {
+  namespace {
+    class C2;
+  }
+}
+N::C2 *pc2 = 0;
+
+// PR6341
+namespace A = N;
+namespace N { }
+namespace A = N;
+
+A::X nx;
+
+namespace PR7014 {
+  namespace X
+  {
+    namespace Y {}
+  }
+
+  using namespace X;
+
+  namespace Y = X::Y;
+}