<?php
/**
 *
 * Copyright © 2016 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Config\Controller\Adminhtml\System\Config;

class Index extends AbstractScopeConfig
{
    /**
     * @var \Magento\Backend\Model\View\Result\ForwardFactory
     */
    protected $resultForwardFactory;

    /**
     * @param \Magento\Backend\App\Action\Context $context
     * @param \Magento\Config\Model\Config\Structure $configStructure
     * @param \Magento\Config\Controller\Adminhtml\System\ConfigSectionChecker $sectionChecker
     * @param \Magento\Config\Model\Config $backendConfig
     * @param \Magento\Backend\Model\View\Result\ForwardFactory $resultForwardFactory
     */
    public function __construct(
        \Magento\Backend\App\Action\Context $context,
        \Magento\Config\Model\Config\Structure $configStructure,
        \Magento\Config\Controller\Adminhtml\System\ConfigSectionChecker $sectionChecker,
        \Magento\Config\Model\Config $backendConfig,
        \Magento\Backend\Model\View\Result\ForwardFactory $resultForwardFactory
    ) {
        parent::__construct($context, $configStructure, $sectionChecker, $backendConfig);
        $this->resultForwardFactory = $resultForwardFactory;
    }

    /**
     * Index action
     *
     * @return \Magento\Backend\Model\View\Result\Forward
     */
    public function execute()
    {
        /** @var \Magento\Backend\Model\View\Result\Forward $resultForward */
        $resultForward = $this->resultForwardFactory->create();
        return $resultForward->forward('edit');
    }
}