How can I make an interface instance method accept arguments of the same class only, really?

Question

This SO discussion proposes the following idiom:

public interface IComparable> {
    int compare(T t);
}

Answer 1

Indeed. I'd advocate that we use This as the conventional name for such type parameters

public interface IComparesWith 
{
    int compare(This t);
}

my previous answer: Convenient way to write generic interface that points out to its implementor