--- /dev/null
+/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
+ * Use of this file is governed by the BSD 3-clause license that
+ * can be found in the LICENSE.txt file in the project root.
+ */
+
+#pragma once
+
+#include "antlr4-common.h"
+
+namespace antlr4 {
+namespace atn {
+
+ /// Represents the type of recognizer an ATN applies to.
+ enum class ATNType {
+ LEXER = 0,
+ PARSER = 1,
+ };
+
+} // namespace atn
+} // namespace antlr4