public static IEither <TException, T2> SelectMany <TException, T0, T1, T2>(
this IEither <TException, T0> either,
Func <T0, IEither <TException, T1> > selector,
Func <T0, T1, T2> projector)
{
return(either.SelectMany(value0 => selector(value0).Select(value1 => projector(value0, value1))));
}
public static IEither <L, R1> SelectMany <L, R, R1, U>(
this IEither <L, R> source,
Func <R, IEither <L, U> > k,
Func <R, U, R1> s)
{
return(source
.SelectMany(x => k(x)
.SelectMany(y => new Right <L, R1>(s(x, y)))));
}