private function checkResponse(pb\Response $response, $token, $query = null)
{
if (is_null($response->getType())) {
throw new RqlDriverError("Response message has no type.");
}
if ($response->getToken() != $token) {
throw new RqlDriverError("Received wrong token. Response does not match the request. Expected {$token}, received " . $response->getToken());
}
if ($response->getType() == pb\Response_ResponseType::PB_CLIENT_ERROR) {
throw new RqlDriverError("Server says PHP-RQL is buggy: " . $response->getResponseAt(0)->getRStr());
} else {
if ($response->getType() == pb\Response_ResponseType::PB_COMPILE_ERROR) {
$backtrace = null;
if (!is_null($response->getBacktrace())) {
$backtrace = Backtrace::_fromProtobuffer($response->getBacktrace());
}
throw new RqlUserError("Compile error: " . $response->getResponseAt(0)->getRStr(), $query, $backtrace);
} else {
if ($response->getType() == pb\Response_ResponseType::PB_RUNTIME_ERROR) {
$backtrace = null;
if (!is_null($response->getBacktrace())) {
$backtrace = Backtrace::_fromProtobuffer($response->getBacktrace());
}
throw new RqlUserError("Runtime error: " . $response->getResponseAt(0)->getRStr(), $query, $backtrace);
}
}
}
}
