TypedMapInterface.php

<?php


/**
 * This file is part of the ramsey/collection library
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
 * @license http://opensource.org/licenses/MIT MIT
 */
declare (strict_types=1);
namespace Ramsey\Collection\Map;


/**
 * A `TypedMapInterface` represents a map of elements where key and value are
 * typed.
 *
 * @template K of array-key
 * @template T
 * @extends MapInterface<K, T>
 */
interface TypedMapInterface extends MapInterface {
    
    /**
     * Return the type used on the key.
     */
    public function getKeyType() : string;
    
    /**
     * Return the type forced on the values.
     */
    public function getValueType() : string;

}