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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Form\Extension\DataCollector;

use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormView;

/**
 * Extracts arrays of information out of forms.
 *
 * @since  2.4
 * @author Bernhard Schussek <bschussek@gmail.com>
 */
interface FormDataExtractorInterface
{
    /**
     * Extracts the configuration data of a form.
     *
     * @param FormInterface $form The form
     *
     * @return array Information about the form's configuration
     */
    public function extractConfiguration(FormInterface $form);

    /**
     * Extracts the default data of a form.
     *
     * @param FormInterface $form The form
     *
     * @return array Information about the form's default data
     */
    public function extractDefaultData(FormInterface $form);

    /**
     * Extracts the submitted data of a form.
     *
     * @param FormInterface $form The form
     *
     * @return array Information about the form's submitted data
     */
    public function extractSubmittedData(FormInterface $form);

    /**
     * Extracts the view variables of a form.
     *
     * @param FormView $view The form view
     *
     * @return array Information about the view's variables
     */
    public function extractViewVariables(FormView $view);
}