kalten Posts - Answer Overflow

kalten

•Created by kalten on 9/9/2024 in #help

Support generic method NativeAOT JsonTypedInfo all together

Hello, I'm in the process of rewriting some of my libs to support native aot. But I have one use case for which I don't know how to do it. My use case look like this:

public interface IMyService
{
    T Get<T>();
}
public class MyService(bool useV1) : IMyService
{
    public T Get<T>()
    {
        return useV1
            ? GetA<T>()
            : GetB<T>();
    }

    private T GetA<T>()
    {
        string json = "{\"Data\": {\"Name\":\"Hello\", \"Id\":1 }}";
        return JsonSerializer.Deserialize<ModelA<T>>(json).Data;
    }

    private T GetB<T>()
    {
        string json = "{\"Data\": {\"Name\":\"World\", \"Id\":2 }}";
        return JsonSerializer.Deserialize<ModelB<T>>(json).Data;
    }
}

public class ModelA<T>
{
    public T Data { get; set; }
}
public class ModelB<T>
{
    public T Data { get; set; }
}

public interface IMyService
{
    T Get<T>();
}
public class MyService(bool useV1) : IMyService
{
    public T Get<T>()
    {
        return useV1
            ? GetA<T>()
            : GetB<T>();
    }

    private T GetA<T>()
    {
        string json = "{\"Data\": {\"Name\":\"Hello\", \"Id\":1 }}";
        return JsonSerializer.Deserialize<ModelA<T>>(json).Data;
    }

    private T GetB<T>()
    {
        string json = "{\"Data\": {\"Name\":\"World\", \"Id\":2 }}";
        return JsonSerializer.Deserialize<ModelB<T>>(json).Data;
    }
}

public class ModelA<T>
{
    public T Data { get; set; }
}
public class ModelB<T>
{
    public T Data { get; set; }
}

The issue is that JsonSerializer.Deserialize need either a JsonTypeInfo or a JsonSerializerOptions with TypeInfoResolver property set, to be working in NativeAot mode. But I don't know how to change IMyService without having to ask the user to provide two JsonTypeInfo parameters (One for ModelA<CustomData> and one for ModelB<CustiomData>) And using a JsonSerializerOptions would make the api less intuitive. Is there a way to JsonSourceGen only ModelA<> and ModelB<> in the lib and le the user provide the the T part? Any advice is welcome.

3 replies

CC#

•Created by kalten on 2/13/2024 in #help

JumpList PublishAOT

Hello, I'm creating an Avalonia app and it support PublishAOT build I would like to add JumpList support to it but I'm not able to make it work after the AOT build. I tried to use Vanara (https://github.com/dahall/Vanara/) but it stop working as soon as set PublishAOT=true with an InvalidProgramException. I also tried to use CsWin32 (https://github.com/microsoft/CsWin32/discussions) hoping to have a more modern com support. But I don't have the knowledge to use this low level api. I tried Avalonia.Win32.JumpLists nuget package too without much more success. Any idea on how to make it work?

140 replies

Gaming

Programming