1 files changed, 12 insertions, 0 deletions
diff --git a/include/clang/Basic/LangOptions.h b/include/clang/Basic/LangOptions.h
index dc77d4c149..5cdeda3877 100644
--- a/include/clang/Basic/LangOptions.h
+++ b/include/clang/Basic/LangOptions.h
@@ -296,6 +296,18 @@ public:
   }
 };
 
+/// \brief Describes the kind of translation unit being processed.
+enum TranslationUnitKind {
+  /// \brief The translation unit is a complete translation unit.
+  TU_Complete,
+  /// \brief The translation unit is a prefix to a translation unit, and is
+  /// not complete.
+  TU_Prefix,
+  /// \brief The translation unit is a module.
+  TU_Module
+};
+  
+  /// \brief 
 }  // end namespace clang
 
 #endif