/// <summary>
/// DescendantsAndSelf iterator
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
private static IEnumerable <TokenSequence> DescendantsAndSelfIterator(TokenSequence source)
{
// and self
yield return(source);
foreach (TokenSequence descendant in ModelSubsequencer.DescendantsIterator(source))
{
yield return(descendant);
}
}
/// <summary>
/// Gets all descendant values below the current root
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static IEnumerable <TokenSequence> Descendants(this TokenSequence source)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (!(source is IList <ModelToken>))
{
// ensure buffered
source = new SequenceBuffer <ModelToken>(source);
}
return(ModelSubsequencer.DescendantsIterator(source));
}
