using System.Collections.Generic; using System.Xml.Linq; namespace Newtonsoft.Json.Converters { internal class XContainerWrapper : XObjectWrapper { private List<IXmlNode> _childNodes; private XContainer Container => (XContainer)base.WrappedNode; public override List<IXmlNode> ChildNodes { get { if (_childNodes == null) { if (!HasChildNodes) _childNodes = XmlNodeConverter.EmptyChildNodes; else { _childNodes = new List<IXmlNode>(); foreach (XNode item in Container.Nodes()) { _childNodes.Add(WrapNode(item)); } } } return _childNodes; } } protected virtual bool HasChildNodes => Container.LastNode != null; public override IXmlNode ParentNode { get { if (Container.Parent == null) return null; return WrapNode(Container.Parent); } } public XContainerWrapper(XContainer container) : base(container) { } internal static IXmlNode WrapNode(XObject node) { XDocument document; if ((document = (node as XDocument)) != null) return new XDocumentWrapper(document); XElement element; if ((element = (node as XElement)) != null) return new XElementWrapper(element); XContainer container; if ((container = (node as XContainer)) != null) return new XContainerWrapper(container); XProcessingInstruction processingInstruction; if ((processingInstruction = (node as XProcessingInstruction)) != null) return new XProcessingInstructionWrapper(processingInstruction); XText text; if ((text = (node as XText)) != null) return new XTextWrapper(text); XComment text2; if ((text2 = (node as XComment)) != null) return new XCommentWrapper(text2); XAttribute attribute; if ((attribute = (node as XAttribute)) != null) return new XAttributeWrapper(attribute); XDocumentType documentType; if ((documentType = (node as XDocumentType)) != null) return new XDocumentTypeWrapper(documentType); return new XObjectWrapper(node); } public override IXmlNode AppendChild(IXmlNode newChild) { Container.Add(newChild.WrappedNode); _childNodes = null; return newChild; } } }