1 files changed, 7 insertions, 0 deletions
diff --git a/ast.h b/ast.h
index 37df4a0e08..f73e74906f 100644
--- a/ast.h
+++ b/ast.h
@@ -440,6 +440,13 @@ public:
 private:
    /** Is this parameter declaration part of a formal parameter list? */
    bool formal_parameter;
+
+   /**
+    * Is this parameter 'void' type?
+    *
+    * This field is set by \c ::hir.
+    */
+   bool is_void;
 };