From 6fcfe0a5cf8f53658e50e346076768eec229e695 Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Sun, 1 Mar 2020 22:34:35 +0100
Subject: Vector invalidation fix

---
 grammer.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'grammer.h')

diff --git a/grammer.h b/grammer.h
index bdb2718..c2eb705 100644
--- a/grammer.h
+++ b/grammer.h
@@ -38,8 +38,8 @@ private:
  BNF &bnf; // not const for access via operator[]
  const std::string& Top;
 
- std::map<std::string, std::set<std::string>> ReverseBNF; // possible parent types of a given type
-
+ std::map<std::string, std::set<std::string>> ReverseBNF; // possible parent types of a given type; unused now: remove?
+ std::map<std::string, std::set<std::string>> reversedFirst; // possible parent types of first childs of a given type
 
  // Tree specific
  void clear();
-- 
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