--- a/Implab/Automaton/DFAStateDescriptor.cs	Thu Feb 25 02:11:13 2016 +0300
+++ b/Implab/Automaton/DFAStateDescriptor.cs	Mon Feb 29 02:02:17 2016 +0300
@@ -1,7 +1,15 @@
 namespace Implab.Automaton {
-    public struct DFAStateDescriptior<TTag> {
-        public bool final;
-        public TTag[] tag;
-        public int[] transitions;
+    public struct DFAStateDescriptior {
+        public readonly bool final;
+        public readonly int[] transitions;
+
+
+        public DFAStateDescriptior(int[] transitions, bool final) {
+            this.transitions = transitions;
+            this.final = final;
+        }
+
+        public DFAStateDescriptior(int[] transitions) : this(transitions, false) {
+        }
     }
 }