Awesome

ThisClass

Exposes class and type information as constants in the ThisClass class using source generators powered by Roslyn, inspired by ThisAssembly.

ThisClass

Add the ThisClassAttribute to generate type information for a class.

[ThisClass]
partial class Demo
{
    public Demo()
    {
        Logger.Info($"Hello from {ThisClass.FullName}"); // SampleApp.Demo
    }
}

NLog.Extensions.ThisClass

Create class loggers without using reflection.

using SomeNamespace;

namespace SampleApp.NLog
{
    ...
    namespace AnotherNamespace
    {
        using SomeOtherNamespace;
        [ClassLoggerLazy]
        partial class Demo2<T> : SomeInterface<T> where T : SomeOtherInterface
        {
            public static void SayHello()
            {
                Logger.Info("Hello");
            }

            [ClassLogger]
            internal partial class NestedClass : SomeInterface<SomeOtherInterface>
            {
            }
        }
    }
}

Looks like this behind the scenes

// <auto-generated/>
#nullable enable
namespace SampleApp.NLog
{
    partial class Demo1
    {
        public static partial class ThisClass
        {
            /// <summary>
            /// Gets the fully qualified name of the parent class, including the namespace but not the assembly.
            /// </summary>
            public const string FullName = "SampleApp.NLog.Demo1";
        }
    }
}

// <auto-generated/>
#nullable enable
namespace SampleApp.NLog
{
    namespace AnotherNamespace
    {
        using SomeOtherNamespace;

        partial class Demo2<T> : global::SomeNamespace.SomeInterface<T> where T : global::SomeOtherNamespace.SomeOtherInterface
        {
            public static partial class ThisClass
            {
                /// <summary>
                /// Gets the fully qualified name of the parent class, including the namespace but not the assembly.
                /// </summary>
                public const string FullName = "SampleApp.NLog.AnotherNamespace.Demo2";
            }

            private static global::NLog.Logger? __loggerLazy;
            private static global::NLog.Logger Logger => __loggerLazy ??= global::NLog.LogManager.GetLogger(ThisClass.FullName);
        }
    }
}

// <auto-generated/>
#nullable enable
namespace SampleApp.NLog
{
    namespace AnotherNamespace
    {
        using SomeOtherNamespace;

        partial class Demo2<T> : global::SomeNamespace.SomeInterface<T> where T : global::SomeOtherNamespace.SomeOtherInterface
        {
            partial class NestedClass : global::SomeNamespace.SomeInterface<global::SomeOtherNamespace.SomeOtherInterface>
            {
                public static partial class ThisClass
                {
                    /// <summary>
                    /// Gets the fully qualified name of the parent class, including the namespace but not the assembly.
                    /// </summary>
                    public const string FullName = "SampleApp.NLog.AnotherNamespace.Demo2.NestedClass";
                }

                private static readonly global::NLog.Logger Logger = global::NLog.LogManager.GetLogger(ThisClass.FullName);
            }
        }
    }
}