/**
* Asks a question to the user.
*
* @param InputInterface $input An InputInterface instance
* @param OutputInterface $output An OutputInterface instance
* @param Question $question The question to ask
*
* @return string The user answer
*
* @throws \RuntimeException If there is no data to read in the input stream
*/
public function ask(InputInterface $input, OutputInterface $output, Question $question)
{
if (!$input->isInteractive()) {
return $question->getDefault();
}
if (!$question->getValidator()) {
return $this->doAsk($output, $question);
}
$that = $this;
$interviewer = function () use($output, $question, $that) {
return $that->doAsk($output, $question);
};
return $this->validateAttempts($interviewer, $output, $question);
}
