--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Jint.Runtime/VM/AbstractBox.cs	Sun Oct 27 21:20:59 2013 +0400
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Jint.Runtime.VM {
+    using OpCodes;
+
+    abstract class AbstractBox {
+
+        protected AbstractBox(Type type) {
+            holdingType = type;
+        }
+
+        public readonly Type holdingType;
+
+        public abstract void InvokeBinaryOperation(Codes code, int arg2, int dest, Frame frame);
+        public abstract void InvokeUnaryOperation(Codes code, int dest, Frame frame);
+        public abstract void InvokeCompareOperation(int arg2, int dest, Frame frame);
+        public abstract void InvokeEqualityOperation(int arg2, int dest, Frame frame);
+    }
+}