49 lines
1.2 KiB
PHP
49 lines
1.2 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\VarExporter\Internal;
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/**
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* Keeps the state of lazy objects.
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*
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* As a micro-optimization, this class uses no type declarations.
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*
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* @internal
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*/
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class LazyObjectState
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{
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public ?\Closure $initializer = null;
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public object $realInstance;
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public object $cloneInstance;
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public function __clone()
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{
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if (isset($this->cloneInstance)) {
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try {
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$this->realInstance = $this->cloneInstance;
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} finally {
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unset($this->cloneInstance);
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}
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} elseif (isset($this->realInstance)) {
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$this->realInstance = clone $this->realInstance;
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}
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}
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public function __get($name)
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{
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if ('realInstance' !== $name) {
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throw new \BadMethodCallException(\sprintf('No such property "%s::$%s"', self::class, $name));
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}
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return $this->realInstance = ($this->initializer)();
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}
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}
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