Eccube\Form\Type\Front\CustomerLoginType::buildForm PHP Method

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('login_email', 'email', array('attr' => array('max_length' => 320), 'constraints' => array(new Assert\NotBlank(), new Assert\Email(array('strict' => true))), 'data' => $this->session->get('_security.last_username')));
        $builder->add('login_memory', 'checkbox', array('required' => false));
        $builder->add('login_pass', 'password', array('attr' => array('max_length' => 320), 'constraints' => array(new Assert\NotBlank())));
    }