From 0639e5cd34c81debb8140ca5dba75e0635fb019c Mon Sep 17 00:00:00 2001
From: David <github.site@torick.net>
Date: Wed, 18 Oct 2023 20:58:47 -0400
Subject: [PATCH] chore: Update to latests uno

---
 .../Uno.UI.RuntimeTests.Engine.Mobile.csproj  |  6 ++---
 ...Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj |  6 ++---
 ...Tests.Engine.Skia.Linux.FrameBuffer.csproj |  6 ++---
 ...Uno.UI.RuntimeTests.Engine.Skia.WPF.csproj |  6 ++---
 .../Uno.UI.RuntimeTests.Engine.Wasm.csproj    |  6 ++---
 .../Uno.UI.RuntimeTests.Engine.Mobile.csproj  |  6 ++---
 ...Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj |  6 ++---
 ...Tests.Engine.Skia.Linux.FrameBuffer.csproj |  6 ++---
 ...Uno.UI.RuntimeTests.Engine.Skia.Wpf.csproj |  6 ++---
 .../Uno.UI.RuntimeTests.Engine.Wasm.csproj    |  6 ++---
 .../Helpers/HotReloadHelper.DevServer.cs      | 11 +++++---
 .../Library/Helpers/HotReloadHelper.cs        |  8 +++---
 .../_Compat/MetadataUpdateHandlerAttribute.cs | 25 +++++++++++++++++++
 ...o.UI.RuntimeTests.Engine.Library.projitems |  1 +
 14 files changed, 67 insertions(+), 38 deletions(-)
 create mode 100644 src/Uno.UI.RuntimeTests.Engine.Library/Library/_Compat/MetadataUpdateHandlerAttribute.cs

diff --git a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Mobile/Uno.UI.RuntimeTests.Engine.Mobile.csproj b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Mobile/Uno.UI.RuntimeTests.Engine.Mobile.csproj
index bc90757..8452e96 100644
--- a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Mobile/Uno.UI.RuntimeTests.Engine.Mobile.csproj
+++ b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Mobile/Uno.UI.RuntimeTests.Engine.Mobile.csproj
@@ -22,9 +22,9 @@
 		<RuntimeIdentifier Condition="'$(TargetFramework)' == 'net7.0-macos'">osx-x64</RuntimeIdentifier>
 	</PropertyGroup>
 	<ItemGroup>
-		<PackageReference Include="Uno.UI" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3500" Condition="'$(Configuration)'=='Debug'" />
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.UI" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3552" Condition="'$(Configuration)'=='Debug'" />
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 		<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="5.0.0" />
 
 		<PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
diff --git a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.Gtk/Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.Gtk/Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj
index 1f41071..573e4ec 100644
--- a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.Gtk/Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj
+++ b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.Gtk/Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj
@@ -16,9 +16,9 @@
 	</ItemGroup>
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="5.0.0" />
-		<PackageReference Include="Uno.UI.Skia.Gtk" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3500" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.UI.Skia.Gtk" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3552" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 
 		<PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
diff --git a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer.csproj b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer.csproj
index 6c4c734..b201f23 100644
--- a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer.csproj
+++ b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer.csproj
@@ -16,9 +16,9 @@
 	</ItemGroup>
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="5.0.0" />
-		<PackageReference Include="Uno.UI.Skia.Linux.FrameBuffer" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3500" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.UI.Skia.Linux.FrameBuffer" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3552" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 
 		<PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
diff --git a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.WPF/Uno.UI.RuntimeTests.Engine.Skia.WPF.csproj b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.WPF/Uno.UI.RuntimeTests.Engine.Skia.WPF.csproj
index e8a8247..5d39293 100644
--- a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.WPF/Uno.UI.RuntimeTests.Engine.Skia.WPF.csproj
+++ b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Skia.WPF/Uno.UI.RuntimeTests.Engine.Skia.WPF.csproj
@@ -20,9 +20,9 @@
 	</ItemGroup>
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="5.0.0" />
-		<PackageReference Include="Uno.UI.Skia.Wpf" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3500"/><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.UI.Skia.Wpf" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3552"/><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 
 		<PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
diff --git a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Wasm/Uno.UI.RuntimeTests.Engine.Wasm.csproj b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Wasm/Uno.UI.RuntimeTests.Engine.Wasm.csproj
index e9e0bb0..ef0bb0c 100644
--- a/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Wasm/Uno.UI.RuntimeTests.Engine.Wasm.csproj
+++ b/src/TestApp/uwp/Uno.UI.RuntimeTests.Engine.Wasm/Uno.UI.RuntimeTests.Engine.Wasm.csproj
@@ -44,9 +44,9 @@
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Extensions.Logging" Version="5.0.0" />
 		<PackageReference Include="Uno.Extensions.Logging.WebAssembly.Console" Version="1.4.0" />
-		<PackageReference Include="Uno.UI.WebAssembly" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3500" Condition="'$(Configuration)'=='Debug'" />
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.UI.WebAssembly" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.UI.DevServer" Version="5.0.0-dev.3552" Condition="'$(Configuration)'=='Debug'" />
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 		<PackageReference Include="Uno.Wasm.Bootstrap" Version="7.0.5" />
 		<PackageReference Include="Uno.Wasm.Bootstrap.DevServer" Version="7.0.5" />
 
diff --git a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Mobile/Uno.UI.RuntimeTests.Engine.Mobile.csproj b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Mobile/Uno.UI.RuntimeTests.Engine.Mobile.csproj
index f32b5cd..8c9779e 100644
--- a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Mobile/Uno.UI.RuntimeTests.Engine.Mobile.csproj
+++ b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Mobile/Uno.UI.RuntimeTests.Engine.Mobile.csproj
@@ -18,9 +18,9 @@
 		<SupportedOSPlatformVersion Condition="'$(TargetFramework)'=='net7.0-macos'">10.14</SupportedOSPlatformVersion>
 	</PropertyGroup>
 	<ItemGroup>
-		<PackageReference Include="Uno.WinUI" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3500" Condition="'$(Configuration)'=='Debug'" />
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.WinUI" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3552" Condition="'$(Configuration)'=='Debug'" />
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 		<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="6.0.0" />
 
 		<PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
diff --git a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Gtk/Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Gtk/Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj
index 7f25f60..1a77bce 100644
--- a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Gtk/Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj
+++ b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Gtk/Uno.UI.RuntimeTests.Engine.Skia.Gtk.csproj
@@ -16,9 +16,9 @@
 	</ItemGroup>
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="6.0.0" />
-		<PackageReference Include="Uno.WinUI.Skia.Gtk" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3500" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.WinUI.Skia.Gtk" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3552" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 
 		<PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
diff --git a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer.csproj b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer.csproj
index 807d756..16260e6 100644
--- a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer.csproj
+++ b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer/Uno.UI.RuntimeTests.Engine.Skia.Linux.FrameBuffer.csproj
@@ -16,9 +16,9 @@
 	</ItemGroup>
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="6.0.0" />
-		<PackageReference Include="Uno.WinUI.Skia.Linux.FrameBuffer" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3500" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.WinUI.Skia.Linux.FrameBuffer" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3552" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 
 		<PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
diff --git a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Wpf/Uno.UI.RuntimeTests.Engine.Skia.Wpf.csproj b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Wpf/Uno.UI.RuntimeTests.Engine.Skia.Wpf.csproj
index 04cde58..c598c10 100644
--- a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Wpf/Uno.UI.RuntimeTests.Engine.Skia.Wpf.csproj
+++ b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Skia.Wpf/Uno.UI.RuntimeTests.Engine.Skia.Wpf.csproj
@@ -20,9 +20,9 @@
 	</ItemGroup>
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="6.0.0" />
-		<PackageReference Include="Uno.WinUI.Skia.Wpf" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3500" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.WinUI.Skia.Wpf" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3552" /><!--Note: Keep the DevServer package also in release for hot reload tests (cf. HotReloadHelper).-->
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 
 		<PackageReference Include="MSTest.TestFramework" Version="2.2.10" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
diff --git a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Wasm/Uno.UI.RuntimeTests.Engine.Wasm.csproj b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Wasm/Uno.UI.RuntimeTests.Engine.Wasm.csproj
index 8421a83..2976787 100644
--- a/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Wasm/Uno.UI.RuntimeTests.Engine.Wasm.csproj
+++ b/src/TestApp/winui/Uno.UI.RuntimeTests.Engine.Wasm/Uno.UI.RuntimeTests.Engine.Wasm.csproj
@@ -44,9 +44,9 @@
 	<ItemGroup>
 		<PackageReference Include="Microsoft.Extensions.Logging" Version="5.0.0" />
 		<PackageReference Include="Uno.Extensions.Logging.WebAssembly.Console" Version="1.4.0" />
-		<PackageReference Include="Uno.WinUI.WebAssembly" Version="5.0.0-dev.3500" />
-		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3500" Condition="'$(Configuration)'=='Debug'" />
-		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3500" />
+		<PackageReference Include="Uno.WinUI.WebAssembly" Version="5.0.0-dev.3552" />
+		<PackageReference Include="Uno.WinUI.DevServer" Version="5.0.0-dev.3552" Condition="'$(Configuration)'=='Debug'" />
+		<PackageReference Include="Uno.UI.Adapter.Microsoft.Extensions.Logging" Version="5.0.0-dev.3552" />
 		<PackageReference Include="Uno.Wasm.Bootstrap" Version="7.0.5" />
 		<PackageReference Include="Uno.Wasm.Bootstrap.DevServer" Version="7.0.5" />
 
diff --git a/src/Uno.UI.RuntimeTests.Engine.Library/Library/Helpers/HotReloadHelper.DevServer.cs b/src/Uno.UI.RuntimeTests.Engine.Library/Library/Helpers/HotReloadHelper.DevServer.cs
index 5877f7a..6de51d0 100644
--- a/src/Uno.UI.RuntimeTests.Engine.Library/Library/Helpers/HotReloadHelper.DevServer.cs
+++ b/src/Uno.UI.RuntimeTests.Engine.Library/Library/Helpers/HotReloadHelper.DevServer.cs
@@ -9,6 +9,7 @@
 using System;
 using System.Collections;
 using System.IO;
+using System.Linq;
 using System.Net.WebSockets;
 using System.Reflection;
 using System.Threading;
@@ -50,6 +51,11 @@ public async ValueTask EnsureReady(CancellationToken ct)
 				throw new InvalidOperationException("Dev server is not available.");
 			}
 
+			if (RemoteControlClient.Instance.Processors.OfType<ClientHotReloadProcessor>().FirstOrDefault() is not { } hotReload)
+			{
+				throw new InvalidOperationException("App is not configured to accept hot-reload.");
+			}
+
 			var timeout = Task.Delay(ConnectionTimeout, ct);
 			if (await Task.WhenAny(timeout, RemoteControlClient.Instance.WaitForConnection(ct)) == timeout)
 			{
@@ -62,10 +68,7 @@ public async ValueTask EnsureReady(CancellationToken ct)
 
 			_log.LogTrace("Client connected, waiting for dev-server to load the workspace (i.e. initializing roslyn with the solution) ...");
 
-			var processors = typeof(RemoteControlClient).GetField("_processors", BindingFlags.Instance | BindingFlags.NonPublic)?.GetValue(RemoteControlClient.Instance) as IDictionary ?? throw new InvalidOperationException("Processors is null");
-			var processor = processors["hotreload"] as ClientHotReloadProcessor ?? throw new InvalidOperationException("HotReloadProcessor is null");
-			var hotReloadReady = typeof(ClientHotReloadProcessor).GetProperty("HotReloadWorkspaceLoaded", BindingFlags.Instance | BindingFlags.NonPublic)?.GetValue(processor) as Task ?? throw new IOException("HotReloadWorkspaceLoaded is null");
-
+			var hotReloadReady = hotReload.WaitForWorkspaceLoaded(ct);
 			timeout = Task.Delay(WorkspaceTimeout, ct);
 			if (await Task.WhenAny(timeout, hotReloadReady) == timeout)
 			{
diff --git a/src/Uno.UI.RuntimeTests.Engine.Library/Library/Helpers/HotReloadHelper.cs b/src/Uno.UI.RuntimeTests.Engine.Library/Library/Helpers/HotReloadHelper.cs
index 5fe4b08..c9e0458 100644
--- a/src/Uno.UI.RuntimeTests.Engine.Library/Library/Helpers/HotReloadHelper.cs
+++ b/src/Uno.UI.RuntimeTests.Engine.Library/Library/Helpers/HotReloadHelper.cs
@@ -90,10 +90,10 @@ static HotReloadHelper()
 			TryUseDevServerFileUpdater();
 		}
 
-		if (!IsSupported)
-		{
-			TryUseLocalFileUpdater();
-		}
+		//if (!IsSupported)
+		//{
+		//	TryUseLocalFileUpdater();
+		//}
 	}
 
 	static partial void TryUseDevServerFileUpdater();
diff --git a/src/Uno.UI.RuntimeTests.Engine.Library/Library/_Compat/MetadataUpdateHandlerAttribute.cs b/src/Uno.UI.RuntimeTests.Engine.Library/Library/_Compat/MetadataUpdateHandlerAttribute.cs
new file mode 100644
index 0000000..a02cf5c
--- /dev/null
+++ b/src/Uno.UI.RuntimeTests.Engine.Library/Library/_Compat/MetadataUpdateHandlerAttribute.cs
@@ -0,0 +1,25 @@
+#if !UNO_RUNTIMETESTS_DISABLE_LIBRARY && WINDOWS_UWP
+#if !IS_UNO_RUNTIMETEST_PROJECT
+#pragma warning disable
+#endif
+
+
+using System.Diagnostics.CodeAnalysis;
+
+#nullable enable
+namespace System.Reflection.Metadata
+{
+	/// <summary>Indicates that a type that should receive notifications of metadata updates.</summary>
+	[AttributeUsage(AttributeTargets.Assembly, AllowMultiple = true)]
+	public sealed class MetadataUpdateHandlerAttribute : Attribute
+	{
+		/// <summary>Initializes the attribute.</summary>
+		/// <param name="handlerType">A type that handles metadata updates and that should be notified when any occur.</param>
+		public MetadataUpdateHandlerAttribute([DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)] Type handlerType) => this.HandlerType = handlerType;
+
+		/// <summary>Gets the type that handles metadata updates and that should be notified when any occur.</summary>
+		[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)]
+		public Type HandlerType { get; }
+	}
+}
+#endif
\ No newline at end of file
diff --git a/src/Uno.UI.RuntimeTests.Engine.Library/Uno.UI.RuntimeTests.Engine.Library.projitems b/src/Uno.UI.RuntimeTests.Engine.Library/Uno.UI.RuntimeTests.Engine.Library.projitems
index c445508..86cb3a1 100644
--- a/src/Uno.UI.RuntimeTests.Engine.Library/Uno.UI.RuntimeTests.Engine.Library.projitems
+++ b/src/Uno.UI.RuntimeTests.Engine.Library/Uno.UI.RuntimeTests.Engine.Library.projitems
@@ -34,6 +34,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Library\Helpers\HotReloadHelper.MetadataUpdateHandler.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Library\Helpers\HotReloadHelper.NotSupported.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Library\_Compat\CallerArgumentExpressionAttribute.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Library\_Compat\MetadataUpdateHandlerAttribute.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Library\_Private\ColorExtensions.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Library\Helpers\HotReloadHelper.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Library\Helpers\ImageAssert.cs" />