private Ref xmlPrimaryReference(Context cx, XMLName xmlName, Scriptable scope) {
XMLObjectImpl xmlObj;
XMLObjectImpl firstXml = null;
for (; ; ) {
// XML object can only present on scope chain as a wrapper
// of XMLWithScope
if (scope instanceof XMLWithScope) {
xmlObj = (XMLObjectImpl) scope.getPrototype();
if (xmlObj.hasXMLProperty(xmlName)) {
break;
}
if (firstXml == null) {
firstXml = xmlObj;
}
}
scope = scope.getParentScope();
if (scope == null) {
xmlObj = firstXml;
break;
}
}
// xmlObj == null corresponds to undefined as the target of
// the reference
if (xmlObj != null) {
xmlName.initXMLObject(xmlObj);
}
return xmlName;
}
