/// <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)));
}
public static EitherStrict <L, D> M <L, A, B, C, D>(EitherStrict <L, A> ma, EitherStrict <L, B> mb, EitherStrict <L, C> mc, Func <A, B, C, D> liftFn)
{
return(from a in ma
from b in mb
from c in mc
select liftFn(a, b, c));
}
/// <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)));
}
public static EitherStrict <L, U> M <L, R, U>(EitherStrict <L, R> m, Func <R, U> liftFn)
{
return(from v in m select liftFn(v));
}
public static EitherStrict <L, C> M <L, A, B, C>(EitherStrict <L, A> ma, EitherStrict <L, B> mb, Func <A, B, C> liftFn)
{
return(from a in ma
from b in mb
select liftFn(a, b));
}
/// <summary>
/// If the result is left, it interprets it as an error and throws and exception.
/// </summary>
public static T ThrowIfError <T>(this EitherStrict <RestBusinessError, T> result)
{
return(result.Match(
Right: v => v,
Left: err => { throw err.ToHttpError().ToRestException(); }));
}
