Diagnose attempst to template using declarations and using directives.

Recover from the latter and fail early for the former.  Fixes PR8022.

llvm-svn: 118669

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaTemplate.cpp b/clang/lib/Sema/SemaTemplate.cpp
index d7c809f35dd..3243903863d 100644
--- a/clang/lib/Sema/SemaTemplate.cpp
+++ b/clang/lib/Sema/SemaTemplate.cpp
@@ -30,6 +30,14 @@
 using namespace clang;
 using namespace sema;
 
+// Exported for use by Parser.
+SourceRange
+clang::getTemplateParamsRange(TemplateParameterList const * const *Ps,
+                              unsigned N) {
+  if (!N) return SourceRange();
+  return SourceRange(Ps[0]->getTemplateLoc(), Ps[N-1]->getRAngleLoc());
+}
+
 /// \brief Determine whether the declaration found is acceptable as the name
 /// of a template and, if so, return that template declaration. Otherwise,
 /// returns NULL.