1 files changed, 22 insertions, 0 deletions

diff --git a/src/WixToolset.Core/Preprocess/IfState.cs b/src/WixToolset.Core/Preprocess/IfState.cs
new file mode 100644
index 00000000..f5bb3e87
--- /dev/null
+++ b/src/WixToolset.Core/Preprocess/IfState.cs
@@ -0,0 +1,22 @@
+// 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.Core.Preprocess
+{
+    /// <summary>
+    /// Current state of the if context.
+    /// </summary>
+    internal enum IfState
+    {
+        /// <summary>Context currently in unknown state.</summary>
+        Unknown,
+
+        /// <summary>Context currently inside if statement.</summary>
+        If,
+
+        /// <summary>Context currently inside elseif statement..</summary>
+        ElseIf,
+
+        /// <summary>Conext currently inside else statement.</summary>
+        Else,
+    }
+}