private ISequence <T> EvaluateInternal <T>(ISequence <T> input, SortDirection sortDirection)
{
return(input.Buffer()
.SelectMany(xs =>
{
var ys = (sortDirection == SortDirection.Ascending) ? xs.OrderBy(x => x) : xs.OrderByDescending(x => x);
return ys.ToSequence();
}));
}
private ISequence <T> EvaluateInternal <T>(ISequence <T> input)
{
return(input.Buffer().SelectManySequential(x => x.Reverse().ToSequence()));
}
private object EvaluateInternal <T>(ISequence <T> input, int?count)
{
return(count.HasValue ? input.Buffer(count.Value) : input.Buffer());
}
private ISequence <T> EvaluateInternal <T>(ISequence <T> input)
{
return(input.Buffer().SelectManySequential(x => x.Shuffle(ThreadSafeRandom.Generator).ToSequence()));
}
