Fix Trim analysis warning IL2075: Elastic.Transport.Extensions.EnumExtensions.GetEnumName(Enum)

Author: Mpdreamz

examples/transport-aot-example/transport-aot-example.csproj

@@ -8,6 +8,7 @@
     <Nullable>enable</Nullable>
     <PublishAot>true</PublishAot>
     <TrimmerSingleWarn>false</TrimmerSingleWarn>
+    <WarningsAsErrors>true</WarningsAsErrors>
   </PropertyGroup>
 
   <ItemGroup>

src/Elastic.Transport/Extensions/Extensions.cs

@@ -4,6 +4,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Globalization;
 using System.IO;
 using System.Linq;
@@ -14,9 +15,10 @@ namespace Elastic.Transport.Extensions;
 
 internal static class EnumExtensions
 {
-	public static string GetEnumName(this Enum e)
+	public static string GetEnumName<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicFields)]T>(this T e)
+		where T : Enum
 	{
-		var attributes = e.GetType().GetField(e.ToString())?.GetCustomAttributes(typeof(EnumMemberAttribute), false);
+		var attributes = typeof(T).GetField(e.ToString())?.GetCustomAttributes(typeof(EnumMemberAttribute), false);
 		if (attributes is null || attributes.Length == 0)
 			return e.ToString();