System.Xaml.XamlXmlParser.ReadObjectElement C# (CSharp) Method

ReadObjectElement() private method

private ReadObjectElement ( XamlType parentType, System.Xaml.XamlMember currentMember ) : IEnumerable
parentType XamlType
currentMember System.Xaml.XamlMember
return IEnumerable
		IEnumerable<XamlXmlNodeInfo> ReadObjectElement (XamlType parentType, XamlMember currentMember)
		{
			var theReader = r;
			
			if (r.NodeType != XmlNodeType.Element) {
				//throw new XamlParseException (String.Format ("Element is expected, but got {0}", r.NodeType));
				yield return Node (XamlNodeType.Value, r.Value);
				yield break;
			}

			if (r.MoveToFirstAttribute ()) {
				do {
					if (r.NamespaceURI == XamlLanguage.Xmlns2000Namespace)
						yield return Node (XamlNodeType.NamespaceDeclaration, new NamespaceDeclaration (r.Value, r.Prefix == "xmlns" ? r.LocalName : String.Empty));
				} while (r.MoveToNextAttribute ());
				r.MoveToElement ();
			}

			var sti = GetStartTagInfo ();

			var xt = sctx.GetXamlType (sti.TypeName);
			if (xt == null) {
				// Current element could be for another member in the parent type (if exists)
				if (parentType != null && (r.LocalName.IndexOf ('.') > 0 || parentType.GetMember (r.LocalName) != null)) {
					// stop the iteration and signal the caller to not read current element as an object. (It resolves conflicts between "start object for current collection's item" and "start member for the next member in the parent object".
					yield return Node (XamlNodeType.None, null);
					yield break;
				}

				// creates name-only XamlType. Also, it does not seem that it does not store this XamlType to XamlSchemaContext (Try GetXamlType(xtn) after reading such xaml node, it will return null).
				xt = new XamlType (sti.Namespace, sti.Name, sti.TypeName.TypeArguments == null ? null : sti.TypeName.TypeArguments.Select<XamlTypeName,XamlType> (xxtn => sctx.GetXamlType (xxtn)).ToArray (), sctx);
			}
			
			bool isGetObject = false;
			if (currentMember != null && !xt.CanAssignTo (currentMember.Type)) {
				if (currentMember.DeclaringType != null && currentMember.DeclaringType.ContentProperty == currentMember)
					isGetObject = true;

				// It could still be GetObject if current_member
				// is not a directive and current type is not
				// a markup extension.
				// (I'm not very sure about the condition;
				// it could be more complex.)
				// seealso: bug #682131
				else if (!(currentMember is XamlDirective) &&
				    !xt.IsMarkupExtension)
					isGetObject = true;
			}

			if (isGetObject) {
				yield return Node (XamlNodeType.GetObject, currentMember.Type);
				foreach (var ni in ReadMembers (parentType, currentMember.Type))
					yield return ni;
				yield return Node (XamlNodeType.EndObject, currentMember.Type);
				yield break;
			}
			// else

			yield return Node (XamlNodeType.StartObject, xt);

			// process attribute members (including MarkupExtensions)
			ProcessAttributesToMember (sctx, sti, xt);

			foreach (var pair in sti.Members) {
				yield return Node (XamlNodeType.StartMember, pair.Key);

				// Try markup extension
				// FIXME: is this rule correct?
				var v = pair.Value;
				if (!String.IsNullOrEmpty (v) && v [0] == '{') {
					var pai = ParsedMarkupExtensionInfo.Parse (v, xaml_namespace_resolver, sctx);
					yield return Node (XamlNodeType.StartObject, pai.Type);
					foreach (var xepair in pai.Arguments) {
						yield return Node (XamlNodeType.StartMember, xepair.Key);
						if (xepair.Value is List<string>)
							foreach (var s in (List<string>) xepair.Value)
								yield return Node (XamlNodeType.Value, s);
						else
							yield return Node (XamlNodeType.Value, xepair.Value);
						yield return Node (XamlNodeType.EndMember, xepair.Key);
					}
					yield return Node (XamlNodeType.EndObject, pai.Type);
				}
				else
					yield return Node (XamlNodeType.Value, pair.Value);

				yield return Node (XamlNodeType.EndMember, pair.Key);
			}

			// process content members
			if (!r.IsEmptyElement) {
				r.Read ();
				foreach (var ni in ReadMembers (parentType, xt))
					yield return ni;
				r.ReadEndElement ();
			}
			else
				r.Read (); // consume empty element.

			yield return Node (XamlNodeType.EndObject, xt);
		}