From: Douglas Gregor <dgregor@apple.com>
Date: Sun, 18 Mar 2012 00:15:42 +0000 (+0000)
Subject: Replace a FIXME with a diagnostic when we can't resolve the
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=957ff27311d444fb87b5b3acb6f44d5de4533b23;p=clang

Replace a FIXME with a diagnostic when we can't resolve the
nested-name-specifier for a class template declaration. Fixes PR12291.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153006 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Sema/SemaTemplate.cpp b/lib/Sema/SemaTemplate.cpp
index afa6c0e15b..680e6eaf2e 100644
--- a/lib/Sema/SemaTemplate.cpp
+++ b/lib/Sema/SemaTemplate.cpp
@@ -872,7 +872,8 @@ Sema::CheckClassTemplate(Scope *S, unsigned TagSpec, TagUseKind TUK,
   if (SS.isNotEmpty() && !SS.isInvalid()) {
     SemanticContext = computeDeclContext(SS, true);
     if (!SemanticContext) {
-      // FIXME: Produce a reasonable diagnostic here
+      Diag(NameLoc, diag::err_template_qualified_declarator_no_match)
+        << SS.getScopeRep() << SS.getRange();
       return true;
     }
 
diff --git a/test/SemaTemplate/qualified-id.cpp b/test/SemaTemplate/qualified-id.cpp
index 29eab89d84..64dff1ce23 100644
--- a/test/SemaTemplate/qualified-id.cpp
+++ b/test/SemaTemplate/qualified-id.cpp
@@ -45,3 +45,12 @@ namespace PR6063 {
     detail::f(a, b);
   }
 }
+
+namespace PR12291 {
+  template <typename T>
+  class Outer2 {
+    template <typename V>
+    template <typename W>
+    class Outer2<V>::Inner; // expected-error{{nested name specifier 'Outer2<V>::' for declaration does not refer into a class, class template or class template partial specialization}}
+  };
+}