1 files changed, 78 insertions, 0 deletions
diff --git a/clang/test/CXX/expr/expr.prim/expr.prim.general/p8-0x.cpp b/clang/test/CXX/expr/expr.prim/expr.prim.general/p8-0x.cpp
new file mode 100644
index 0000000..5b3a004
--- /dev/null
+++ b/clang/test/CXX/expr/expr.prim/expr.prim.general/p8-0x.cpp
@@ -0,0 +1,78 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
+
+struct global {
+};
+
+namespace PR10127 {
+  struct outer {
+    struct middle {
+      struct inner {
+        int func();
+        int i;
+      };
+      struct inner2 {
+      };
+      struct inner3 {
+      };
+      int mfunc();
+    };
+    typedef int td_int;
+  };
+
+  struct str {
+    operator decltype(outer::middle::inner()) ();
+    operator decltype(outer::middle())::inner2 ();
+    operator decltype(outer())::middle::inner3 ();
+    str(int (decltype(outer::middle::inner())::*n)(),
+             int (decltype(outer::middle())::inner::*o)(),
+             int (decltype(outer())::middle::inner::*p)());
+  };
+
+  decltype(outer::middle::inner()) a;
+  void scope() {
+    a.decltype(outer::middle())::mfunc(); // expected-error{{'PR10127::outer::middle::mfunc' is not a member of class 'decltype(outer::middle::inner())'}}
+    a.decltype(outer::middle::inner())::func();
+    a.decltype(outer::middle())::inner::func();
+    a.decltype(outer())::middle::inner::func();
+
+    a.decltype(outer())::middle::inner::~inner();
+
+    decltype(outer())::middle::inner().func();
+  }
+  decltype(outer::middle())::inner b;
+  decltype(outer())::middle::inner c;
+  decltype(outer())::fail d; // expected-error{{no type named 'fail' in 'PR10127::outer'}}
+  decltype(outer())::fail::inner e; // expected-error{{no member named 'fail' in 'PR10127::outer'}}
+  decltype()::fail f; // expected-error{{expected expression}}
+  decltype()::middle::fail g; // expected-error{{expected expression}}
+  
+  decltype(int()) h;
+  decltype(int())::PR10127::outer i; // expected-error{{'decltype(int())' (aka 'int') is not a class, namespace, or scoped enumeration}}
+  decltype(int())::global j; // expected-error{{'decltype(int())' (aka 'int') is not a class, namespace, or scoped enumeration}}
+  
+  outer::middle k = decltype(outer())::middle();
+  outer::middle::inner l = decltype(outer())::middle::inner();
+
+  template<typename T>
+  struct templ {
+    typename decltype(T())::middle::inner x; // expected-error{{type 'decltype(int())' (aka 'int') cannot be used prior to '::' because it has no members}}
+  };
+
+  template class templ<int>; // expected-note{{in instantiation of template class 'PR10127::templ<int>' requested here}}
+  template class templ<outer>;
+
+  enum class foo {
+    bar,
+    baz
+  };
+  
+  foo m = decltype(foo::bar)::baz;
+
+  enum E {
+  };
+  struct bar {
+    enum E : decltype(outer())::td_int(4);
+    enum F : decltype(outer())::td_int;
+    enum G : decltype; // expected-error{{expected '(' after 'decltype'}}
+  };
+}