public static void Case <TToken, T>(
this IReply <TToken, T> reply,
Action <ITokenStream <TToken>, String> failure,
Action <ITokenStream <TToken>, T> success)
{
reply.Case(
failure: (stream, errorMessage) =>
{ failure(stream, errorMessage); return(Unit.Instance); },
success: (stream, value) =>
{ success(stream, value); return(Unit.Instance); });
}
public static bool IsSuccess <TToken, T>(this IReply <TToken, T> reply) => reply.Case((_, __) => false, (_, __) => true);