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53 lines
1.5 KiB
PHP
53 lines
1.5 KiB
PHP
<?php
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/*
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*
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* ____ _ _ __ __ _ __ __ ____
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* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
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* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
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* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
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* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* @author PocketMine Team
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* @link http://www.pocketmine.net/
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*
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*
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*/
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declare(strict_types=1);
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namespace pocketmine\utils;
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use Ds\Set;
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/**
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* This trait provides destructor callback functionality to objects which use it. This enables a weakmap-like system
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* to function without actually having weak maps.
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* TODO: remove this in PHP 8
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*/
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trait DestructorCallbackTrait{
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/**
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* @var Set
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* @phpstan-var Set<\Closure() : void>|null
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*/
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private $destructorCallbacks = null;
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/** @phpstan-return Set<\Closure() : void> */
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public function getDestructorCallbacks() : Set{
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return $this->destructorCallbacks === null ? ($this->destructorCallbacks = new Set()) : $this->destructorCallbacks;
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}
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public function __destruct(){
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if($this->destructorCallbacks !== null){
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foreach($this->destructorCallbacks as $callback){
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$callback();
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}
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}
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}
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}
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