public static IDataflow <Either <TLeft, TRightOutput> > SelectSafe
<TLeft, TRightInput, TRightMedium, TRightOutput>(
this IDataflow <Either <TLeft, TRightInput> > source,
Func <TRightInput, Either <TLeft, TRightMedium> > mediumSelector,
Func <TRightInput, TRightMedium, TRightOutput> resultSelector)
{
return(source.Select(item => item.SelectSafe(mediumSelector, resultSelector)));
}
public static IDataflow <Either <TLeft, TRightOutput> > SelectSafe <TLeft, TRightInput, TRightOutput>(
this IDataflow <Either <TLeft, TRightInput> > source,
Func <TRightInput, Either <TLeft, TRightOutput> > selector)
{
return(source.Select(item => item.SelectSafe(selector)));
}
public static IDataflow <TLeft> Lefts <TLeft, TRight>(this IDataflow <Either <TLeft, TRight> > source)
{
return(source.Select(item => item.GetLeftSafe()));
}