Add the clang library to the repo (with some of my changes, too).

1 files changed, 152 insertions, 0 deletions

diff --git a/clang/test/CXX/temp/temp.decls/temp.class/temp.mem.enum/p1.cpp b/clang/test/CXX/temp/temp.decls/temp.class/temp.mem.enum/p1.cpp
new file mode 100644
index 0000000..f8cc009
--- /dev/null
+++ b/clang/test/CXX/temp/temp.decls/temp.class/temp.mem.enum/p1.cpp
@@ -0,0 +1,152 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s
+
+template<typename T> struct A {
+  enum E : T; // expected-note {{here}}
+  E v;
+  E f() { return A::e1; } // expected-error {{no member named 'e1' in 'A<T>'}}
+  E g() { return E::e1; }
+  E h();
+};
+
+A<int> a;
+A<int>::E a0 = A<int>().v;
+int n = A<int>::E::e1; // expected-error {{implicit instantiation of undefined member}}
+
+template<typename T> enum A<T>::E : T { e1, e2 };
+
+// FIXME: Now that A<T>::E is defined, we are supposed to inject its enumerators
+// into the already-instantiated class A<T>. This seems like a really bad idea,
+// though, so we don't implement that, but what we do implement is inconsistent.
+//
+// Either do as the standard says, or only include enumerators lexically defined
+// within the class in its scope.
+A<int>::E a1 = A<int>::e1; // expected-error {{no member named 'e1' in 'A<int>'}}
+
+A<char>::E a2 = A<char>::e2;
+
+template<typename T> typename A<T>::E A<T>::h() { return e2; }
+A<short>::E a3 = A<short>().h();
+
+
+template<typename T> struct B {
+  enum class E;
+  E v;
+  E f() { return E::e1; }
+  E g();
+};
+
+B<int> b;
+B<int>::E b0 = B<int>().v;
+
+template<typename T> enum class B<T>::E { e1, e2 };
+B<int>::E b1 = B<int>::E::e1;
+
+B<char>::E b2 = B<char>::E::e2;
+
+template<typename T> typename B<T>::E B<T>::g() { return e2; }
+B<short>::E b3 = B<short>().g();
+
+
+// Enumeration members of class templates can be explicitly specialized. For
+// unscoped enumerations, specializations must be defined before the primary
+// template is, since otherwise the primary template will be implicitly
+// instantiated when we parse the nested name specifier.
+template<> enum A<long long>::E : long long { e3, e4 }; // expected-error {{explicit specialization of 'E' after instantiation}} expected-note {{first required here}}
+
+template<> enum class B<long long>::E { e3, e4 };
+B<long long>::E b4 = B<long long>::E::e4;
+
+B<long>::E b5;
+template<> enum class B<long>::E { e5 };
+void fb5() { b5 = decltype(b5)::e5; }
+B<long>::E b6 = B<long>::E::e5;
+
+
+template<typename T> struct C {
+  enum class E : T;
+};
+
+template<> enum class C<long long>::E : long long { e3, e4 };
+C<long long>::E c0 = C<long long>::E::e3;
+
+C<long>::E c1;
+template<> enum class C<long>::E : long { e5 };
+void fc1() { c1 = decltype(c1)::e5; }
+C<long>::E c2 = C<long>::E::e5;
+
+template<> enum class C<int>::E : int { e6 };
+template<typename T> enum class C<T>::E : T { e0 };
+C<int>::E c3 = C<int>::E::e6;
+C<int>::E c4 = C<int>::E::e0; // expected-error {{no member named 'e0' in 'C<int>::E'}}
+
+
+// Enumeration members can't be partially-specialized.
+template<typename T> enum class B<T*>::E { e5, e6 }; // expected-error {{nested name specifier for a declaration cannot depend on a template parameter}}
+
+
+// Explicit specializations can be forward-declared.
+template<typename T>
+struct D {
+  enum class E { e1 };
+};
+template<> enum class D<int>::E;
+D<int>::E d1 = D<int>::E::e1; // expected-error {{incomplete type 'D<int>::E'}}
+template<> enum class D<int>::E { e2 };
+D<int>::E d2 = D<int>::E::e2;
+D<char>::E d3 = D<char>::E::e1; // expected-note {{first required here}}
+D<char>::E d4 = D<char>::E::e2; // expected-error {{no member named 'e2'}}
+template<> enum class D<char>::E { e3 }; // expected-error {{explicit specialization of 'E' after instantiation}}
+
+template<> enum class D<short>::E;
+struct F {
+  // Per C++11 [class.friend]p3, these friend declarations have no effect.
+  // Only classes and functions can be friends.
+  template<typename T> friend enum D<T>::E;
+  template<> friend enum D<short>::E;
+
+  template<> friend enum D<double>::E { e3 }; // expected-error {{cannot define a type in a friend declaration}}
+
+private:
+  static const int n = 1; // expected-note {{private here}}
+};
+template<> enum class D<short>::E {
+  e = F::n // expected-error {{private member}}
+};
+
+class Access {
+  friend class X;
+
+  template<typename T>
+  class Priv {
+    friend class X;
+
+    enum class E : T;
+  };
+
+  class S {
+    typedef int N; // expected-note {{here}}
+    static const int k = 3; // expected-note {{here}}
+
+    friend class Priv<char>;
+  };
+
+  static const int k = 5;
+};
+
+template<> enum class Access::Priv<Access::S::N>::E
+  : Access::S::N { // expected-error {{private member}}
+  a = Access::k, // ok
+  b = Access::S::k // expected-error {{private member}}
+};
+
+template<typename T> enum class Access::Priv<T>::E : T {
+  c = Access::k,
+  d = Access::S::k
+};
+
+class X {
+  Access::Priv<int>::E a = Access::Priv<int>::E::a;
+  Access::Priv<char>::E c = Access::Priv<char>::E::d;
+  // FIXME: We should see an access error for this enumerator.
+  Access::Priv<short>::E b = Access::Priv<short>::E::d;
+};