If InvokeAllocate produces an object, this starts reading an element by calling InvokeConsumeAttributes and then InvokeConsumeBody, passing it that object. Finally this calls InvokeConsumeObjectFinish. This method will return null if InvokeAllocate returns null. This method is called by ConsumeRootBody and by any other code that needs to read/construct an object. You probably do not need to override this method.

Reference

GoXmlReader Class
GoXmlReader Members
ReaderNode Property