public function prune(&$maxsize, &$maxdepth, &$log)
{
if ($maxsize >= $this->getSize()) {
$maxsize = $maxsize - $this->getSize();
return $this;
} elseif ($maxsize <= 0) {
$log[] = $this->getQueryString();
$result = new ThingDescription();
} else {
$result = new ClassDescription(array_slice($this->m_diWikiPages, 0, $maxsize));
$rest = new ClassDescription(array_slice($this->m_diWikiPages, $maxsize));
$log[] = $rest->getQueryString();
$maxsize = 0;
}
$result->setPrintRequests($this->getPrintRequests());
return $result;
}