2 files changed, 6 insertions, 0 deletions

diff --git a/include/clang/Sema/ExternalSemaSource.h b/include/clang/Sema/ExternalSemaSource.h
index 05c56451b2188..d27e29281b5a3 100644
--- a/include/clang/Sema/ExternalSemaSource.h
+++ b/include/clang/Sema/ExternalSemaSource.h
@@ -34,6 +34,9 @@ public:
   /// tree.
   virtual void InitializeSema(Sema &S) {}
 
+  /// \brief Inform the semantic consumer that Sema is no longer available.
+  virtual void ForgetSema() {}
+
   /// \brief Load the contents of the global method pool for a given
   /// selector.
   ///
diff --git a/include/clang/Sema/SemaConsumer.h b/include/clang/Sema/SemaConsumer.h
index b213daf8a39ea..3689a6e7a820c 100644
--- a/include/clang/Sema/SemaConsumer.h
+++ b/include/clang/Sema/SemaConsumer.h
@@ -34,6 +34,9 @@ namespace clang {
     /// tree.
     virtual void InitializeSema(Sema &S) {}
 
+    /// \brief Inform the semantic consumer that Sema is no longer available.
+    virtual void ForgetSema() {}
+
     // isa/cast/dyn_cast support
     static bool classof(const ASTConsumer *Consumer) {
       return Consumer->SemaConsumer;