1 files changed, 1 insertions, 0 deletions
diff --git a/src/ast/ast.hpp b/src/ast/ast.hpp
index 8976cfc7..43a0e027 100644
--- a/src/ast/ast.hpp
+++ b/src/ast/ast.hpp
@@ -599,6 +599,7 @@ TAGGED_UNION_EX(Item, (), None,
     (
     (None, struct {} ),
     (MacroInv, MacroInvocation),
+    // TODO: MacroDefinition
     (Use, UseItem),
 
     // Nameless items