Make ObjectFactory<T> covariant (#102553)

dotnet · Dec 5, 2024 · 2300123 · 2300123
1 parent 2f81513
commit 2300123
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/...ndencyInjection.Abstractions/ref/Microsoft.Extensions.DependencyInjection.Abstractions.cs b/...ndencyInjection.Abstractions/ref/Microsoft.Extensions.DependencyInjection.Abstractions.cs
@@ -73,7 +73,7 @@ public static partial class KeyedService
         public static object AnyKey { get { throw null; } }
     }
     public delegate object ObjectFactory(System.IServiceProvider serviceProvider, object?[]? arguments);
-    public delegate T ObjectFactory<T>(System.IServiceProvider serviceProvider, object?[]? arguments);
+    public delegate T ObjectFactory<out T>(System.IServiceProvider serviceProvider, object?[]? arguments);
     public partial class ServiceCollection : Microsoft.Extensions.DependencyInjection.IServiceCollection, System.Collections.Generic.ICollection<Microsoft.Extensions.DependencyInjection.ServiceDescriptor>, System.Collections.Generic.IEnumerable<Microsoft.Extensions.DependencyInjection.ServiceDescriptor>, System.Collections.Generic.IList<Microsoft.Extensions.DependencyInjection.ServiceDescriptor>, System.Collections.IEnumerable
     {
         public ServiceCollection() { }

diff --git a/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/src/ObjectFactoryT.cs b/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/src/ObjectFactoryT.cs
@@ -12,5 +12,5 @@ namespace Microsoft.Extensions.DependencyInjection
     /// <param name="serviceProvider">The <see cref="IServiceProvider"/> to get service arguments from.</param>
     /// <param name="arguments">Additional constructor arguments.</param>
     /// <returns>An instance of type <typeparamref name="T" />.</returns>
-    public delegate T ObjectFactory<T>(IServiceProvider serviceProvider, object?[]? arguments);
+    public delegate T ObjectFactory<out T>(IServiceProvider serviceProvider, object?[]? arguments);
 }