2 files changed, 42 insertions, 0 deletions

diff --git a/src/WixToolset.Extensibility/Data/CustomActionPlatforms.cs b/src/WixToolset.Extensibility/Data/CustomActionPlatforms.cs
new file mode 100644
index 00000000..c3c5ba82
--- /dev/null
+++ b/src/WixToolset.Extensibility/Data/CustomActionPlatforms.cs
@@ -0,0 +1,31 @@
+// 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.Extensibility.Data
+{
+    using System;
+
+    /// <summary>
+    /// Platforms supported by custom actions.
+    /// </summary>
+    [Flags]
+    public enum CustomActionPlatforms
+    {
+        /// <summary>Not specified.</summary>
+        None = 0,
+
+        /// <summary>x86.</summary>
+        X86 = 0x1,
+
+        /// <summary>x64.</summary>
+        X64 = 0x2,
+
+        /// <summary>ia64.</summary>
+        IA64 = 0x4,
+
+        /// <summary>arm.</summary>
+        ARM = 0x8,
+
+        /// <summary>arm64.</summary>
+        ARM64 = 0x10
+    }
+}
diff --git a/src/WixToolset.Extensibility/Services/IParseHelper.cs b/src/WixToolset.Extensibility/Services/IParseHelper.cs
index 2a51e240..a8f8da4f 100644
--- a/src/WixToolset.Extensibility/Services/IParseHelper.cs
+++ b/src/WixToolset.Extensibility/Services/IParseHelper.cs
@@ -126,6 +126,17 @@ namespace WixToolset.Extensibility.Services
         void CreateSimpleReference(IntermediateSection section, SourceLineNumber sourceLineNumbers, string tableName, params string[] primaryKeys);
 
         /// <summary>
+        /// Create a reference in the specified section for a custom action specialized for specific platforms,
+        /// given standard prefixes for naming and suffixes for platforms.
+        /// </summary>
+        /// <param name="sourceLineNumbers">Source line information.</param>
+        /// <param name="section">Section to create the reference in.</param>
+        /// <param name="customAction">The custom action base name.</param>
+        /// <param name="currentPlatform">The platform being compiled.</param>
+        /// <param name="supportedPlatforms">The platforms for which there are specialized custom actions.</param>
+        void CreateCustomActionReference(SourceLineNumber sourceLineNumbers, IntermediateSection section, string customAction, Platform platform, CustomActionPlatforms supportedPlatforms);
+
+        /// <summary>
         /// Creates WixComplexReference and WixGroup rows in the active section.
         /// </summary>
         /// <param name="sourceLineNumbers">Source line information.</param>