private function validateParameterLists(): void
  {
    // Make list with names of parameters used in database.
    $database_parameters_names = [];
    foreach ($this->parameters as $parameter_info)
    {
      $database_parameters_names[] = $parameter_info['parameter_name'];
    }

    // Make list with names of parameters used in dock block of routine.
    $doc_block_parameters_names = [];
    if (isset($this->docBlockPartsSource['parameters']))
    {
      foreach ($this->docBlockPartsSource['parameters'] as $parameter)
      {
        $doc_block_parameters_names[] = $parameter['name'];
      }
    }

    // Check and show warning if any parameters is missing in doc block.
    $tmp = array_diff($database_parameters_names, $doc_block_parameters_names);
    foreach ($tmp as $name)
    {
      $this->io->logNote('Parameter <dbo>%s</dbo> is missing from doc block', $name);
    }

    // Check and show warning if find unknown parameters in doc block.
    $tmp = array_diff($doc_block_parameters_names, $database_parameters_names);
    foreach ($tmp as $name)
    {
      $this->io->logNote('Unknown parameter <dbo>%s</dbo> found in doc block', $name);
    }
  }