From c9deed06b1311c08aa79efba90c8c8880f92d4d6 Mon Sep 17 00:00:00 2001
From: Oleg Shilo <oleg.shilo@gmail.com>
Date: Wed, 22 Jan 2025 23:22:44 +1100
Subject: [PATCH] #1732: If any of Extensions.GenericEntities, MIMETypes, or
 Verbs are set, all must be set

---
 .../Wix# Samples/ComServer/setup.cs           | 19 ++++++++++--
 Source/src/WixSharp/ComRegistration.cs        | 29 +++++++++----------
 2 files changed, 30 insertions(+), 18 deletions(-)

diff --git a/Source/src/WixSharp.Samples/Wix# Samples/ComServer/setup.cs b/Source/src/WixSharp.Samples/Wix# Samples/ComServer/setup.cs
index 2d8886c3..f0d5f3b4 100644
--- a/Source/src/WixSharp.Samples/Wix# Samples/ComServer/setup.cs	
+++ b/Source/src/WixSharp.Samples/Wix# Samples/ComServer/setup.cs	
@@ -2,6 +2,7 @@
 //css_ref Wix_bin\WixToolset.Dtf.WindowsInstaller.dll;
 //css_ref System.Core.dll;
 using System;
+using System.Diagnostics;
 using WixSharp;
 
 class Script
@@ -25,7 +26,7 @@ static public void Build()
         var project =
             new Project("MyProduct",
                 new Dir(@"%ProgramFiles%\My Company\My Product",
-                    new File(@"Files\Bin\MyApp.exe",
+                    new File(new Id("MyApp.exe"), @"Files\Bin\MyApp.exe",
                              new TypeLib
                              {
                                  Id = new Guid("6f330b47-2577-43ad-9095-1861ba25889b"),
@@ -50,6 +51,21 @@ static public void Build()
                                              {
                                                  Id = "prog.id",
                                                  Description="some description"
+                                                 ,Extensions = new[]
+                                                 {
+                                                     new Extension
+                                                     {
+                                                         ContentType = "text/plain",
+                                                         Verbs = new []
+                                                         {
+                                                             new Verb
+                                                             {
+                                                                 TargetFile = "MyApp.exe",
+                                                             }
+                                                         },
+
+                                                     }
+                                                 }
                                              }
                                          }
                                      }
@@ -58,7 +74,6 @@ static public void Build()
 
         project.GUID = new Guid("6f330b47-2577-43ad-9095-1861ba25889b");
         // project.PreserveTempFiles = true;
-
         project.BuildMsi();
     }
 
diff --git a/Source/src/WixSharp/ComRegistration.cs b/Source/src/WixSharp/ComRegistration.cs
index bbbbd164..aeb87520 100644
--- a/Source/src/WixSharp/ComRegistration.cs
+++ b/Source/src/WixSharp/ComRegistration.cs
@@ -576,17 +576,17 @@ public Extension()
         /// Extensibility point in the WiX XML Schema.
         /// Schema extensions can register additional attributes at this point in the schema.
         /// </summary>
-        public IGenericEntity[] GenericEntities;
+        public IGenericEntity[] GenericEntities = new IGenericEntity[0];
 
         /// <summary>
         /// MIME content-types for an <see cref="Extension"/>.
         /// </summary>
-        public MimeType[] MIMETypes;
+        public MimeType[] MIMETypes = new MimeType[0];
 
         /// <summary>
         /// Verb definitions for an <see cref="Extension"/>.
         /// </summary>
-        public Verb[] Verbs;
+        public Verb[] Verbs = new Verb[0];
 
         /// <summary>
         /// Adds itself as an XML content into the WiX source being generated from the <see cref="Project" />.
@@ -606,20 +606,17 @@ public void Process(ProcessingContext context)
             if (!Advertise.HasValue)
                 Advertise = false;
 
-            if (GenericEntities?.Length > 0 || MIMETypes?.Length > 0 || Verbs?.Length > 0)
+            var extensionContext = new ProcessingContext
             {
-                var extensionContext = new ProcessingContext
-                {
-                    Project = context.Project,
-                    Parent = this,
-                    FeatureComponents = context.FeatureComponents,
-                    XParent = element
-                };
-
-                _ = GenericEntities.ForEach(e => e.Process(extensionContext));
-                _ = MIMETypes.ForEach(t => t.Process(extensionContext));
-                _ = Verbs.ForEach(v => v.Process(extensionContext));
-            }
+                Project = context.Project,
+                Parent = this,
+                FeatureComponents = context.FeatureComponents,
+                XParent = element
+            };
+
+            GenericEntities.ForEach(e => e.Process(extensionContext));
+            MIMETypes.ForEach(t => t.Process(extensionContext));
+            Verbs.ForEach(v => v.Process(extensionContext));
 
             context.XParent.Add(element);
         }