public static Either <IGenInstance <TSource>, IGenIteration <TNonInstance> > ToEither <TSource, TNonInstance>(
this IGenIteration <TSource> iteration) => iteration.Match <Either <IGenInstance <TSource>, IGenIteration <TNonInstance> > >(
onInstance: instance => new Left <IGenInstance <TSource>, IGenIteration <TNonInstance> >(instance),
onError: error => new Right <IGenInstance <TSource>, IGenIteration <TNonInstance> >(
GenIterationFactory.Error <TNonInstance>(error.ReplayParameters, error.NextParameters, error.GenName, error.Message)),
onDiscard: discard => new Right <IGenInstance <TSource>, IGenIteration <TNonInstance> >(
GenIterationFactory.Discard <TNonInstance>(discard.ReplayParameters, discard.NextParameters, discard.ExampleSpace)));
public static bool IsDiscard <T>(this IGenIteration <T> iteration) => iteration.Match(
onInstance: _ => false,
onError: _ => false,
onDiscard: _ => true);
