NS_IF_ADDREF(*_retval = file); return NS_OK;
} *_retval = file; NS_ADDREF(*_retval); return GetNextEntry();
nsDirEnumeratorUnix::GetNext(nsISupports **_retval){    nsCOMPtr<nsIFile> file;    nsresult rv = GetNextFile(getter_AddRefs(file));    if (NS_FAILED(rv))        return rv;    NS_IF_ADDREF(*_retval = file);    return NS_OK;}