protected function checkUseUse(UseUse $node, $namePos) {
if ('self' == strtolower($node->alias) || 'parent' == strtolower($node->alias)) {
$this->emitError(new Error(
sprintf(
'Cannot use %s as %s because \'%2$s\' is a special class name',
$node->name, $node->alias
),
$this->getAttributesAt($namePos)
));
}
}