/// <summary>
/// SelectMany
/// </summary>
public static EitherStrict <L, VR> SelectMany <L, TR, UR, VR>(
this EitherStrict <L, TR> self,
Func <TR, EitherStrict <L, UR> > selector,
Func <TR, UR, VR> projector)
{
if (selector == null)
{
throw new ArgumentNullException("selector");
}
if (projector == null)
{
throw new ArgumentNullException("projector");
}
if (self.IsLeft)
{
return(EitherStrict.Left <L, VR>(self.Left));
}
var res = selector(self.Right);
if (res.IsLeft)
{
return(EitherStrict.Left <L, VR>(res.Left));
}
return(EitherStrict.Right <L, VR>(projector(self.Right, res.Right)));
}
/// <summary>
/// Select
/// </summary>
public static EitherStrict <L, UR> Select <L, TR, UR>(
this EitherStrict <L, TR> self,
Func <TR, UR> selector)
{
if (selector == null)
{
throw new ArgumentNullException("selector");
}
if (self.IsLeft)
{
return(EitherStrict.Left <L, UR>(self.Left));
}
return(EitherStrict.Right <L, UR>(selector(self.Right)));
}