Introduce a method to get from an anonymous struct or union record declaration

to the associated object declaration.

llvm-svn: 104309

1 files changed, 11 insertions, 0 deletions

diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index 695a8b8b514..ffdcb471d08 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -1627,6 +1627,17 @@ void RecordDecl::completeDefinition() {
   TagDecl::completeDefinition();
 }
 
+ValueDecl *RecordDecl::getAnonymousStructOrUnionObject() {
+  // Force the decl chain to come into existence properly.
+  if (!getNextDeclInContext()) getParent()->decls_begin();
+
+  assert(isAnonymousStructOrUnion());
+  ValueDecl *D = cast<ValueDecl>(getNextDeclInContext());
+  assert(D->getType()->isRecordType());
+  assert(D->getType()->getAs<RecordType>()->getDecl() == this);
+  return D;
+}
+
 //===----------------------------------------------------------------------===//
 // BlockDecl Implementation
 //===----------------------------------------------------------------------===//