Full nameof

Mapperly supports a "fullnameof". It can be used to configure nested member paths or fully qualified names using nameof. To determine the correct reference, Mapperly tries to inteligently resolve the referenced target. To use "fullnameof" instead of the regular C# nameof, one needs to opt-in by prefixing the member path with @.

[MapProperty(nameof(@MyNamespace.Car.Make.Id), nameof(CarDto.MakeId))]
partial CarDto Map(Car car);

nameof(@MyNamespace.Car.Make.Id) will result in the property path Make.Id:

[MapProperty("Make.Id", "MakeId")]

If the @ is not used, the default C# behavior of nameof is used, which would result in the property name Id, which is not what we want in this case:

[MapProperty("Id", "MakeId")]