Microsoft's __uuidof operator implementation part 1.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113356 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/AST/ExprCXX.cpp b/lib/AST/ExprCXX.cpp
index 8caf70b3e1..f72ab98eb8 100644
--- a/lib/AST/ExprCXX.cpp
+++ b/lib/AST/ExprCXX.cpp
@@ -39,6 +39,22 @@ Stmt::child_iterator CXXTypeidExpr::child_end() {
                          : reinterpret_cast<Stmt **>(&Operand) + 1;
 }
 
+QualType CXXUuidofExpr::getTypeOperand() const {
+  assert(isTypeOperand() && "Cannot call getTypeOperand for __uuidof(expr)");
+  return Operand.get<TypeSourceInfo *>()->getType().getNonReferenceType()
+                                                        .getUnqualifiedType();
+}
+
+// CXXUuidofExpr - has child iterators if the operand is an expression
+Stmt::child_iterator CXXUuidofExpr::child_begin() {
+  return isTypeOperand() ? child_iterator() 
+                         : reinterpret_cast<Stmt **>(&Operand);
+}
+Stmt::child_iterator CXXUuidofExpr::child_end() {
+  return isTypeOperand() ? child_iterator() 
+                         : reinterpret_cast<Stmt **>(&Operand) + 1;
+}
+
 // CXXBoolLiteralExpr
 Stmt::child_iterator CXXBoolLiteralExpr::child_begin() {
   return child_iterator();