using Microsoft.Extensions.Logging;

namespace ProjectA;

public class ObjectToLog
{
    // This property MUST NOT be logged.
    [LogPropertyIgnore]
    public string? PropertyToIgnore { get; set; }

    // This property MUST be logged.
    public string? PropertyToLog { get; set; }

    // This property MUST be logged. Each property of FieldToLog MUST be logged separately.
    [LogProperties]
    public Field? FieldToLog { get; set; }
}

public class Field
{
    public string? Name { get; set; }
    public string? Value { get; set; }
}

using Microsoft.Extensions.Logging;
using ProjectA;

internal static partial class Log
{
    [LoggerMessage(LogLevel.Information)]
    public static partial void LogObject(this ILogger logger, [LogProperties] ObjectToLog objectToLog);
}

using Microsoft.Extensions.Logging;
using ProjectA;

using ILoggerFactory loggerFactory = LoggerFactory.Create(builder =>
{
    builder.ClearProviders();
    builder.AddJsonConsole(options => options.JsonWriterOptions = new() { Indented = true });
});

ILogger logger = loggerFactory.CreateLogger("Demo");

logger.LogObject(new ObjectToLog
{
    PropertyToIgnore = "Foo",
    PropertyToLog = "Bar",
    FieldToLog = new Field { Name = "Fizz", Value = "Buzz" }
});

#define CODE_GENERATION_ATTRIBUTES

public class ObjectToLog
{
    ...
}