Implement C++ [temp.local]p4, which specifies how we eliminate

name-lookup ambiguities when there are multiple base classes that are
all specializations of the same class template. This is part of a
general cleanup for ambiguities in template-name lookup. Fixes
PR6717.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101065 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 32 insertions, 0 deletions

diff --git a/test/CXX/temp/temp.res/temp.local/p3.cpp b/test/CXX/temp/temp.res/temp.local/p3.cpp
new file mode 100644
index 0000000000..88f8963e6b
--- /dev/null
+++ b/test/CXX/temp/temp.res/temp.local/p3.cpp
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -verify %s
+
+template <class T> struct Base { // expected-note 4 {{member found by ambiguous name lookup}}
+  static void f();
+}; 
+
+struct X0 { };
+
+template <class T> struct Derived: Base<int>, Base<char> {
+  typename Derived::Base b;	// expected-error{{member 'Base' found in multiple base classes of different types}}
+  typename Derived::Base<double> d;	// OK
+
+  void g(X0 *t) {
+    t->Derived::Base<T>::f();
+    t->Base<T>::f();
+    t->Base::f(); // expected-error{{member 'Base' found in multiple base classes of different types}} \
+    // expected-error{{no member named 'f' in 'X0'}} \
+    // expected-error{{expected a class or namespace}}
+  }
+};
+
+namespace PR6717 {
+  template <typename T>
+  class WebVector {
+  }
+
+    WebVector(const WebVector<T>& other) { } 
+
+  template <typename C>
+  WebVector<T>& operator=(const C& other) { } // expected-error{{unknown type name 'WebVector'}} \
+  // expected-error{{unqualified-id}}
+}