public function guessPatternForConstraint(Constraint $constraint)
    {
        switch (\get_class($constraint)) {
            case 'Symfony\Component\Validator\Constraints\Length':
                if (is_numeric($constraint->min)) {
                    return new ValueGuess(sprintf('.{%s,}', (string) $constraint->min), Guess::LOW_CONFIDENCE);
                }
                break;

            case 'Symfony\Component\Validator\Constraints\Regex':
                $htmlPattern = $constraint->getHtmlPattern();

                if (null !== $htmlPattern) {
                    return new ValueGuess($htmlPattern, Guess::HIGH_CONFIDENCE);
                }
                break;

            case 'Symfony\Component\Validator\Constraints\Range':
                if (is_numeric($constraint->min)) {
                    return new ValueGuess(sprintf('.{%s,}', \strlen((string) $constraint->min)), Guess::LOW_CONFIDENCE);
                }
                break;

            case 'Symfony\Component\Validator\Constraints\Type':
                if (\in_array($constraint->type, ['double', 'float', 'numeric', 'real'])) {
                    return new ValueGuess(null, Guess::MEDIUM_CONFIDENCE);
                }
                break;
        }
    }