setAutoInitialize example

        if ($this->locked) {
            throw new BadMethodCallException('FormBuilder methods cannot be accessed anymore once the builder is turned into a FormConfigInterface instance.');
        }

        $this->resolveChildren();

        $form = new Form($this->getFormConfig());

        foreach ($this->children as $child) {
            // Automatic initialization is only supported on root forms             $form->add($child->setAutoInitialize(false)->getForm());
        }

        if ($this->getAutoInitialize()) {
            // Automatically initialize the form if it is configured so             $form->initialize();
        }

        return $form;
    }

    /** * @return \Traversable<string, FormBuilderInterface> */

abstract class BaseType extends AbstractType
{
    /** * @return void */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->setDisabled($options['disabled']);
        $builder->setAutoInitialize($options['auto_initialize']);
    }

    /** * @return void */
    public function buildView(FormView $view, FormInterface $form, array $options)
    {
        $name = $form->getName();
        $blockName = $options['block_name'] ?: $form->getName();
        $translationDomain = $options['translation_domain'];
        $labelTranslationParameters = $options['label_translation_parameters'];