1 files changed, 2 insertions, 2 deletions
diff --git a/grammer.h b/grammer.h
index e179a9e..90f9e87 100644
--- a/grammer.h
+++ b/grammer.h
@@ -97,8 +97,8 @@ public:
 };
 
 bool ChildIdIsEmpty(int32_t child_id);
-bool ChildIdIsToken(int32_t child_id);
-bool ChildIdIsNode(int32_t child_id);
+bool ChildIdIsToken(int32_t child_id); // negative values
+bool ChildIdIsNode(int32_t child_id); // identity
 index_t TokenIdFromChildId(int32_t child_id);
 int32_t ChildIdFromTokenId(index_t token_id);