/**
* @param string $expected
* @param array $token
*
* @throws InvalidValueException
*/
protected function syntaxError($expected = '', $token = null)
{
if ($token === null) {
$token = $this->lexer->lookahead;
}
$tokenPos = isset($token['position']) ? $token['position'] : '-1';
$message = 'line 0, col ' . $tokenPos . ': Error: ';
$message .= $expected !== '' ? 'Expected ' . $expected . ', got ' : 'Unexpected ';
$message .= $this->lexer->lookahead === null ? 'end of string.' : '"' . $token['value'] . '"';
throw InvalidValueException::syntaxError($message, $this->input);
}
