NS_NOTYETIMPLEMENTED("write me!"); return NS_ERROR_NOT_IMPLEMENTED;
NS_PRECONDITION(aReturn != nsnull, "null ptr"); if (! aReturn) return NS_ERROR_NULL_POINTER;  nsresult rv;  nsCOMPtr<nsITextContent> text; rv = nsComponentManager::CreateInstance(kTextNodeCID, nsnull, nsITextContent::GetIID(), getter_AddRefs(text)); if (NS_FAILED(rv)) return rv;  rv = text->SetText(aData.GetUnicode(), aData.Length(), PR_FALSE); if (NS_FAILED(rv)) return rv;  rv = text->QueryInterface(nsIDOMText::GetIID(), (void**) aReturn); NS_ASSERTION(NS_SUCCEEDED(rv), "not a DOMText"); if (NS_FAILED(rv)) return rv;  return NS_OK;
XULDocumentImpl::CreateTextNode(const nsString& aData, nsIDOMText** aReturn){    NS_NOTYETIMPLEMENTED("write me!");    return NS_ERROR_NOT_IMPLEMENTED;}