/// <summary>
/// Calculates the specified values.
/// </summary>
/// <param name="values">The values.</param>
public override IEnumerable <Object> Calculate(IEnumerable <Object> values)
{
Selector.ApplyAttributes(Attributes);
var filteredElements = values.GetOrEmpty().SelectMany(node => Selector.SelectElement(node));
foreach (var filteredElement in filteredElements)
{
if (Modifiers.Any())
{
foreach (var modifier in Modifiers)
{
foreach (var element in modifier.ModifySelection(filteredElement))
{
yield return(element);
}
}
}
else
{
yield return(filteredElement);
}
}
}
