<?php

/**
 * Fontis Australia Post API client library for PHP
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/osl-3.0.php
 *
 * @category   Fontis
 * @package    Fontis_Auspost
 * @copyright  Copyright (c) 2019 Fontis Pty. Ltd. (https://www.fontis.com.au)
 * @license    https://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */
declare (strict_types=1);
namespace OctolizeShippingAustraliaPostVendor\Fontis\Auspost\Model;

use ReflectionClass;
/**
 * Represents an enumerable set of values
 */
abstract class Enum
{
    /**
     * @var array A cache of all enum values to increase performance
     */
    protected static $cache = array();
    /**
     * Returns the names (or keys) of all of constants in the enum
     *
     * @return array
     */
    public static function keys()
    {
        return array_keys(static::values());
    }
    /**
     * Return the names and values of all the constants in the enum
     *
     * @return array
     */
    public static function values()
    {
        $class = get_called_class();
        if (!isset(self::$cache[$class])) {
            $reflected = new ReflectionClass($class);
            self::$cache[$class] = $reflected->getConstants();
        }
        return self::$cache[$class];
    }
}
