Implement pack expansions whose pattern is a base-specifier.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122782 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 1 deletions

diff --git a/lib/Parse/ParseDeclCXX.cpp b/lib/Parse/ParseDeclCXX.cpp
index fe2390f1aa..adbecdc4a9 100644
--- a/lib/Parse/ParseDeclCXX.cpp
+++ b/lib/Parse/ParseDeclCXX.cpp
@@ -1196,13 +1196,20 @@ Parser::BaseResult Parser::ParseBaseSpecifier(Decl *ClassDecl) {
   if (BaseType.isInvalid())
     return true;
 
+  // Parse the optional ellipsis (for a pack expansion). The ellipsis is 
+  // actually part of the base-specifier-list grammar productions, but we
+  // parse it here for convenience.
+  SourceLocation EllipsisLoc;
+  if (Tok.is(tok::ellipsis))
+    EllipsisLoc = ConsumeToken();
+  
   // Find the complete source range for the base-specifier.
   SourceRange Range(StartLoc, EndLocation);
 
   // Notify semantic analysis that we have parsed a complete
   // base-specifier.
   return Actions.ActOnBaseSpecifier(ClassDecl, Range, IsVirtual, Access,
-                                    BaseType.get(), BaseLoc);
+                                    BaseType.get(), BaseLoc, EllipsisLoc);
 }
 
 /// getAccessSpecifierIfPresent - Determine whether the next token is