public static XElement LoadStream(XmlReader reader, XName rootName, params XName[] streamNames)
{
ArgumentNullException.ThrowIfNull(reader);
ArgumentNullException.ThrowIfNull(rootName);
ArgumentNullException.ThrowIfNull(streamNames);
for (int i = 0; i < streamNames.Length; i++)
{
if (streamNames[i] == null)
{
throw new ArgumentNullException("streamNames[" + i + "]");
}
}
if (reader.MoveToContent() != XmlNodeType.Element)
{
throw new InvalidOperationException(string.Format("The reader should be on a node of type '{0}'.", XmlNodeType.Element));
}
XElement source = new XElement(rootName);
StreamLoader loader = new StreamLoader(reader, streamNames);
XName streamName = streamNames.Length > 0 ? streamNames[0] : null;
loader.ReadElementUntil(source, streamName);
if (streamName != null)
{
source.AddAnnotation(loader);
}
return(source);
}
public IEnumerator <XElement> GetEnumerator()
{
if (_loader._index != _index - 1 || (_index - 1 >= 0 && _loader._iterators[_index - 1] != null && _loader._iterators[_index - 1].source != source))
{
yield break;
}
int depth = _loader._baseDepth + _index + 1;
XName name = _loader._streamNames[_index];
XName streamName = _loader._streamNames.Length > _index + 1 ? _loader._streamNames[_index + 1] : null;
if (_loader.SkipContentUntil(depth, name))
{
_loader._iterators[_index] = this;
_loader._index = _index;
do
{
source = new XElement(name);
_loader.ReadElementUntil(source, streamName);
if (streamName != null)
{
source.AddAnnotation(_loader);
}
yield return(source);
if (_loader._iterators[_index] != this)
{
yield break;
}
if (_loader._index != _index)
{
for (int i = _index + 1; i <= _loader._index; i++)
{
_loader._iterators[i] = null;
}
_loader._index = _index;
}
} while (_loader.SkipContentUntil(depth, name));
_loader._iterators[_index] = null;
_loader._index = _index - 1;
}
}