-ms-extensions: Implement __super scope specifier (PR13236).

We build a NestedNameSpecifier that records the CXXRecordDecl in which
__super appeared. Name lookup is performed in all base classes of the
recorded CXXRecordDecl. Use of __super is allowed only inside class and
member function scope.

llvm-svn: 218484

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index 4717174b4a4..d2d02fac03e 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -814,6 +814,9 @@ void CXXNameMangler::mangleUnresolvedPrefix(NestedNameSpecifier *qualifier,
     // We never want an 'E' here.
     return;
 
+  case NestedNameSpecifier::Super:
+    llvm_unreachable("Can't mangle __super specifier");
+
   case NestedNameSpecifier::Namespace:
     if (qualifier->getPrefix())
       mangleUnresolvedPrefix(qualifier->getPrefix(), firstQualifierLookup,
@@ -1462,6 +1465,9 @@ void CXXNameMangler::manglePrefix(NestedNameSpecifier *qualifier) {
     // nothing
     return;
 
+  case NestedNameSpecifier::Super:
+    llvm_unreachable("Can't mangle __super specifier");
+
   case NestedNameSpecifier::Namespace:
     mangleName(qualifier->getAsNamespace());
     return;