IEnumerable <XamlNodeMember> GetNodeMembers(XamlObject xobj, IValueSerializerContext vsctx)
{
var member = new XamlNodeMember();
// XData.XmlReader is not returned.
if (ReferenceEquals(xobj.Type, XamlLanguage.XData))
{
yield return(member.Set(xobj, XamlLanguage.XData.GetMember("Text")));
yield break;
}
// FIXME: find out why root Reference has PositionalParameters.
if (xobj.Value != root && ReferenceEquals(xobj.Type, XamlLanguage.Reference))
{
yield return(member.Set(xobj, XamlLanguage.PositionalParameters));
}
else
{
var inst = xobj.Value;
var atts = new KeyValuePair <AttachableMemberIdentifier, object> [AttachablePropertyServices.GetAttachedPropertyCount(inst)];
AttachablePropertyServices.CopyPropertiesTo(inst, atts, 0);
XamlObject cobj = null;
foreach (var p in atts)
{
var axt = ctx.GetXamlType(p.Key.DeclaringType);
if (cobj == null)
{
cobj = new XamlObject();
}
yield return(member.Set(cobj.Set(axt, p.Value), axt.GetAttachableMember(p.Key.MemberName)));
}
var type = xobj.Type;
if (type.HasPositionalParameters(vsctx))
{
yield return(member.Set(xobj, XamlLanguage.PositionalParameters));
yield break;
}
// Note that if the XamlType has the default constructor, we don't need "Arguments".
IEnumerable <XamlMember> args = type.ConstructionRequiresArguments ? type.GetSortedConstructorArguments() : null;
if (args != null && args.Any())
{
yield return(member.Set(xobj, XamlLanguage.Arguments));
}
if (type.IsContentValue(vsctx))
{
yield return(member.Set(xobj, XamlLanguage.Initialization));
yield break;
}
if (type.IsDictionary)
{
yield return(member.Set(xobj, XamlLanguage.Items));
yield break;
}
var members = type.GetAllMembersAsList();
for (int i = 0; i < members.Count; i++)
{
var m = members[i];
// do not read constructor arguments twice (they are written inside Arguments).
if (args != null && args.Contains(m))
{
continue;
}
// do not return non-public members (of non-collection/xdata). Not sure why .NET filters out them though.
if (!m.IsReadPublic ||
!m.ShouldSerialize(xobj.Value))
{
continue;
}
if (!m.IsWritePublic &&
!m.Type.IsXData &&
!m.Type.IsArray &&
!m.Type.IsCollection &&
!m.Type.IsDictionary)
{
continue;
}
yield return(member.Set(xobj, m));
}
if (type.IsCollection)
{
yield return(member.Set(xobj, XamlLanguage.Items));
}
}
}