2 files changed, 7 insertions, 0 deletions
diff --git a/include/clang/AST/ASTMutationListener.h b/include/clang/AST/ASTMutationListener.h
index ea09b0c202..72e4571cc8 100644
--- a/include/clang/AST/ASTMutationListener.h
+++ b/include/clang/AST/ASTMutationListener.h
@@ -14,6 +14,7 @@
 #define LLVM_CLANG_AST_ASTMUTATIONLISTENER_H
 
 namespace clang {
+  class TagDecl;
   class CXXRecordDecl;
   class CXXMethodDecl;
 
@@ -23,6 +24,9 @@ namespace clang {
 class ASTMutationListener {
 public:
   virtual ~ASTMutationListener();
+
+  /// \brief A new TagDecl definition was completed.
+  virtual void CompletedTagDefinition(const TagDecl *D) { }
 };
 
 } // end namespace clang
diff --git a/include/clang/Serialization/ASTWriter.h b/include/clang/Serialization/ASTWriter.h
index d6b1467576..7b6b00155d 100644
--- a/include/clang/Serialization/ASTWriter.h
+++ b/include/clang/Serialization/ASTWriter.h
@@ -511,6 +511,9 @@ public:
   void DeclRead(serialization::DeclID ID, const Decl *D);
   void SelectorRead(serialization::SelectorID ID, Selector Sel);
   void MacroDefinitionRead(serialization::MacroID ID, MacroDefinition *MD);
+
+  // ASTMutationListener implementation.
+  virtual void CompletedTagDefinition(const TagDecl *D);
 };
 
 /// \brief AST and semantic-analysis consumer that generates a