fixing default assembly

Author: StephaneDelcroix

src/Controls/src/Build.Tasks/XamlTask.cs

@@ -48,7 +48,6 @@ internal static ILRootNode ParseXaml(Stream stream, ModuleDefinition module, Typ
 				&& (a.ConstructorArguments.Count == 0 || a.ConstructorArguments[0].Value is bool b && b));
 
 			var nsmgr = new XmlNamespaceManager(new NameTable());
-			nsmgr.AddNamespace("__f__", XamlParser.MauiUri);
 			if (allowImplicitXmlns)
 			{
 				nsmgr.AddNamespace("", XamlParser.DefaultImplicitUri);

src/Controls/src/Build.Tasks/XmlTypeExtensions.cs

@@ -72,7 +72,7 @@ static void GatherXmlnsDefinitionAttributes(List<XmlnsDefinitionAttribute> xmlns
 				{
 					var attr = GetXmlnsDefinition(ca, asmDef);
 					//only add globalxmlns definition from the current assembly
-					if (attr.XmlNamespace == XamlParser.MauiGlobal
+					if (attr.XmlNamespace == XamlParser.MauiGlobalUri
 						&& asmDef != currentAssembly)
 						continue;
 					ValidateProtectedXmlns(attr.XmlNamespace, attr.AssemblyName);

src/Controls/src/SourceGen/CodeBehindGenerator.cs

@@ -293,7 +293,7 @@ static AssemblyCaches GetAssemblyAttributes(Compilation compilation, Cancellatio
 					}
 
 					//only add globalxmlns definition from the current assembly
-					if (xmlnsDef.XmlNamespace == XamlParser.MauiGlobal
+					if (xmlnsDef.XmlNamespace == XamlParser.MauiGlobalUri
 						&& !SymbolEqualityComparer.Default.Equals(assembly, compilation.Assembly))
 					{
 						continue;
@@ -318,7 +318,7 @@ static AssemblyCaches GetAssemblyAttributes(Compilation compilation, Cancellatio
 			}
 		}
 
-		var globalXmlns = xmlnsDefinitions.Where(x => x.XmlNamespace == XamlParser.MauiGlobal).ToList();
+		var globalXmlns = xmlnsDefinitions.Where(x => x.XmlNamespace == XamlParser.MauiGlobalUri).ToList();
 		var globalGeneratedXmlnsDefinitions = new List<XmlnsDefinitionAttribute>();
 		foreach (var global in globalXmlns)
 		{

src/Controls/src/Xaml/XamlLoader.cs

@@ -66,7 +66,6 @@ public static void Load(object view, string xaml, Assembly rootAssembly, bool us
 				&& (a.ConstructorArguments.Count == 0 || a.ConstructorArguments[0].Value is bool b && b));
 
 			var nsmgr = new XmlNamespaceManager(new NameTable());
-			nsmgr.AddNamespace("__f__", XamlParser.MauiUri);
 			if (allowImplicitXmlns)
 			{
 				nsmgr.AddNamespace("", XamlParser.DefaultImplicitUri);

src/Controls/src/Xaml/XamlParser.Namespaces.cs

@@ -6,13 +6,12 @@ static partial class XamlParser
 	{
 		[Obsolete("Should not be used except for migration/error message purposes")]
 		public const string FormsUri = "http://xamarin.com/schemas/2014/forms";
-		public const string DefaultImplicitUri = MauiUri;
+		public const string DefaultImplicitUri = MauiGlobalUri;
 		public const string MauiGlobalUri = "http://schemas.microsoft.com/dotnet/maui/global";
 		public const string MauiUri = "http://schemas.microsoft.com/dotnet/2021/maui";
 		public const string MauiDesignUri = "http://schemas.microsoft.com/dotnet/2021/maui/design";
 		public const string X2006Uri = "http://schemas.microsoft.com/winfx/2006/xaml";
 		public const string X2009Uri = "http://schemas.microsoft.com/winfx/2009/xaml";
 		public const string McUri = "http://schemas.openxmlformats.org/markup-compatibility/2006";
-		public const string MauiGlobal = "http://schemas.microsoft.com/dotnet/maui/global";
 	}
 }

src/Controls/src/Xaml/XamlParser.cs

@@ -360,7 +360,7 @@ static void GatherXmlnsDefinitionAttributes(Assembly currentAssembly)
 					foreach (XmlnsDefinitionAttribute attribute in assembly.GetCustomAttributes(typeof(XmlnsDefinitionAttribute)))
 					{
 						// Only add global xmlns definition from the current assembly
-						if (attribute.XmlNamespace == XamlParser.MauiGlobal
+						if (attribute.XmlNamespace == XamlParser.MauiGlobalUri
 							&& assembly != currentAssembly)
 							continue;