CallbackSlotValidator.php

<?php
 
/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */
 
declare(strict_types=1);
 
namespace pocketmine\inventory\transaction\action\validator;
 
use pocketmine\inventory\Inventory;
use pocketmine\inventory\transaction\TransactionValidationException;
use pocketmine\item\Item;
use pocketmine\utils\Utils;
 
class CallbackSlotValidator implements SlotValidator{
    public function __construct(
        private \Closure $validate
    ){
        Utils::validateCallableSignature(function(Inventory $inventory, Item $item, int $slot) : ?TransactionValidationException{ return null; }, $validate);
    }
 
    public function validate(Inventory $inventory, Item $item, int $slot) : ?TransactionValidationException{
        return ($this->validate)($inventory, $item, $slot);
    }
}