1 files changed, 13 insertions, 0 deletions
diff --git a/include/clang/Lex/MacroInfo.h b/include/clang/Lex/MacroInfo.h
index 90f95b7..717c300 100644
--- a/include/clang/Lex/MacroInfo.h
+++ b/include/clang/Lex/MacroInfo.h
@@ -82,6 +82,9 @@ private:
   /// AllowRedefinitionsWithoutWarning - True if this macro can be redefined
   /// without emitting a warning.
   bool IsAllowRedefinitionsWithoutWarning : 1;
+
+  /// \brief Must warn if the macro is unused at the end of translation unit.
+  bool IsWarnIfUnused : 1;
    
    ~MacroInfo() {
     assert(ArgumentList == 0 && "Didn't call destroy before dtor!");
@@ -138,6 +141,11 @@ public:
     IsAllowRedefinitionsWithoutWarning = Val;
   }
 
+  /// \brief Set the value of the IsWarnIfUnused flag.
+  void setIsWarnIfUnused(bool val) {
+    IsWarnIfUnused = val;
+  }
+
   /// setArgumentList - Set the specified list of identifiers as the argument
   /// list for this macro.
   void setArgumentList(IdentifierInfo* const *List, unsigned NumArgs,
@@ -201,6 +209,11 @@ public:
     return IsAllowRedefinitionsWithoutWarning;
   }
 
+  /// \brief Return true if we should emit a warning if the macro is unused.
+  bool isWarnIfUnused() const {
+    return IsWarnIfUnused;
+  }
+
   /// getNumTokens - Return the number of tokens that this macro expands to.
   ///
   unsigned getNumTokens() const {