Mapster.Tool incorrect codegen map to existing object

Empty console project for .Net 6.0 with nullable enabled

public struct Source
{
    public string Name { get; set; }
}

public struct Dest
{
    public string Name { get; set; }
}

[Mapper]
public interface ITestMapping
{
    Dest AdaptTo(Source source, Dest dest);
}

Got next generated code:

public partial class TestMapping : ITestMapping
{
    public Dest AdaptTo(Source p1, Dest p2)
    {
        Dest result = new Dest();
        
        result.Name = p1.Name;
        return result;
        
    }
}

Parameter p2 doesn’t used. But expected next code

public partial class TestMapping : ITestMapping
{
    public Dest AdaptTo(Source p1, Dest p2)
    {
        p2.Name = p1.Name;
        return p2;
    }
}

[andrerav]

@heggi I’ve verified that this fixes the issue for both basic mapping and code generation. Please try version 8.4.0-pre05 and let me know how it goes:

dotnet tool install --global Mapster.Tool --version 8.4.0-pre05

[andrerav]

Great, thank you! This fix will be included in Mapster.Tool 8.4.0 and Mapster 7.4.0 which should be released in a few weeks at the latest.