Working with warnings

CSharp/Applications/AvaloniaSerilogDI/ViewLocator.cs

@@ -2,15 +2,24 @@ using Avalonia.Controls;
 using Avalonia.Controls.Templates;
 using AvaloniaSerilogDI.ViewModels;
 using System;
+using System.Diagnostics.CodeAnalysis;
 
 namespace AvaloniaSerilogDI;
-
+// <summary>
+/// Given a view model, returns the corresponding view if possible.
+/// </summary>
+[RequiresUnreferencedCode(
+    "Default implementation of ViewLocator involves reflection which may be trimmed away.",
+    Url = "https://docs.avaloniaui.net/docs/concepts/view-locator")]
 public class ViewLocator : IDataTemplate
 {
-    public IControl Build(object data)
+    public Control? Build(object? param)
     {
-        string name = data.GetType().FullName!.Replace("ViewModel", "View");
-        Type? type = Type.GetType(name);
+        if (param is null)
+            return null;
+
+        var name = param.GetType().FullName!.Replace("ViewModel", "View", StringComparison.Ordinal);
+        var type = Type.GetType(name);
 
         if (type != null)
         {
@@ -20,8 +29,8 @@ public class ViewLocator : IDataTemplate
         return new TextBlock { Text = "Not Found: " + name };
     }
 
-    public bool Match(object data)
+    public bool Match(object? data)
     {
         return data is ViewModelBase;
     }
-}
+}