1 files changed, 19 insertions, 0 deletions

diff --git a/src/WixToolset.Extensibility/CompilerConstants.cs b/src/WixToolset.Extensibility/CompilerConstants.cs
new file mode 100644
index 00000000..6d4ca742
--- /dev/null
+++ b/src/WixToolset.Extensibility/CompilerConstants.cs
@@ -0,0 +1,19 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset
+{
+    using System;
+
+    /// <summary>
+    /// Constants used by compiler.
+    /// </summary>
+    public class CompilerConstants
+    {
+        public const int IntegerNotSet = int.MinValue;
+        public const int IllegalInteger = int.MinValue + 1;
+        public const long LongNotSet = long.MinValue;
+        public const long IllegalLong = long.MinValue + 1;
+        public const string IllegalGuid = "IllegalGuid";
+        public static readonly Version IllegalVersion = new Version(Int32.MaxValue, Int32.MaxValue, Int32.MaxValue, Int32.MaxValue);
+    }
+}