internal void ProcessAttributes(ref XmlSchemaElement xse, XmlSchemaType effectiveSchemaType, bool bCreatingNewType, XmlSchema parentSchema)
{
XmlSchemaObjectCollection attributesSeen = new XmlSchemaObjectCollection();
XmlSchemaComplexType ct = effectiveSchemaType as XmlSchemaComplexType;
Debug.Assert(xtr.NodeType == XmlNodeType.Attribute);
do
{
if (xtr.NamespaceURI == XmlSchema.Namespace)
{
throw new XmlSchemaInferenceException(Res.SchInf_schema, 0, 0);
}
if (xtr.NamespaceURI == "http://www.w3.org/2000/xmlns/")
{
if (xtr.Prefix=="xmlns")
NamespaceManager.AddNamespace(xtr.LocalName, xtr.Value);
}
else if (xtr.NamespaceURI == "http://www.w3.org/2001/XMLSchema-instance")
{
string localName = xtr.LocalName;
if (localName == "nil")
{
xse.IsNillable = true;
}
else if (localName != "type" && localName != "schemaLocation" && localName != "noNamespaceSchemaLocation")
{
throw new XmlSchemaInferenceException(Res.Sch_NotXsiAttribute,localName);
}
}
else
{
if (ct == null || ct == XmlSchemaComplexType.AnyType)
{
ct = new XmlSchemaComplexType();
xse.SchemaType = ct;
}
XmlSchemaAttribute xsa=null;
//The earlier assumption of checking just schemaTypeName !Empty is not correct for schemas that are not generated by us, schemaTypeName can point to any complex type as well
//Check that it is a simple type by checking typeCode
//Switch to complex type simple content extension
if (effectiveSchemaType != null && effectiveSchemaType.Datatype != null && !xse.SchemaTypeName.IsEmpty)
{
//type was previously simple type, now it will become complex with simple type extension
Debug.Assert(ct != null);
XmlSchemaSimpleContent sc = new XmlSchemaSimpleContent();
ct.ContentModel = sc;
XmlSchemaSimpleContentExtension sce = new XmlSchemaSimpleContentExtension();
sc.Content = sce;
sce.BaseTypeName = xse.SchemaTypeName;
sce.LineNumber = xse.LineNumber;
xse.LineNumber = 0;
xse.SchemaTypeName = XmlQualifiedName.Empty; //re-set the name
}
Debug.Assert(ct != null); //either the user-defined type itself is a complex type or we switched from a simple type to a complex type
if (ct.ContentModel != null)
{
XmlSchemaSimpleContentExtension sce = CheckSimpleContentExtension(ct);
Debug.Assert(sce != null);
xsa = AddAttribute(xtr.LocalName, xtr.Prefix, xtr.NamespaceURI, xtr.Value, bCreatingNewType, parentSchema, sce.Attributes, ct.AttributeUses);
}
else //add atributes directly to complex type
{
xsa = AddAttribute(xtr.LocalName, xtr.Prefix, xtr.NamespaceURI, xtr.Value, bCreatingNewType, parentSchema, ct.Attributes, ct.AttributeUses);
}
if (xsa != null) {
attributesSeen.Add(xsa);
}
}
} while (xtr.MoveToNextAttribute());
if (!bCreatingNewType)
{
//make attributes that did not appear this time optional
if (ct!=null) {
MakeExistingAttributesOptional(ct, attributesSeen);
}
}
}
