<?php

/**
 * @package    Grav\Common\File
 *
 * @copyright  Copyright (c) 2015 - 2026 Trilby Media, LLC. All rights reserved.
 * @license    MIT License; see LICENSE file for details.
 */

namespace Grav\Common\File;

use Grav\Framework\File\Formatter\YamlFormatter;
use RocketTheme\Toolbox\File\YamlFile;

/**
 * Class CompiledYamlFile
 * @package Grav\Common\File
 */
class CompiledYamlFile extends YamlFile
{
    use CompiledFile;

    /**
     * Check contents and make sure it is in correct format.
     *
     * The toolbox encoder writes a `<<` key quoted, but the decoders still read it as the
     * merge key, so the file would load differently from how it was saved.
     *
     * @param mixed $var
     * @return array
     */
    protected function check($var)
    {
        $var = parent::check($var);

        YamlFormatter::assertNoMergeKeys($var);

        return $var;
    }
}