Question: Result<T,E> with interfaces

[MettBeagle]

Hi,
I'm currently trying to figure out how (and when) to use this library and I'm probably missing something regarding the Result-Type.

Using the sample code below, I'm wondering why the implicit conversion from actual value to the result type doesn't work, when I try to directly return an interface instance. Could someone please explain, why that won't work or if I'm just missing another way to do that?

public class Error { }
public interface ISomething{ }
public class SomeClass : ISomething { }

public class Test
{
	public Result<SomeClass, Error> Works(SomeClass data)
		=> data;

	public Result<ISomething, Error> Works(ISomething data)
		=> Result.Success<ISomething, Error>(data);

	public Result<ISomething, Error> Breaks(ISomething data)
		=> data;
}

Thanks!

[Sviataslau Hankovich]

Hi, this is a C# limitation. Please check this question for details.