/usr/share/php/Nette/common/FreezableObject.php is in php-nette 2.1.0-1.
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/**
* This file is part of the Nette Framework (http://nette.org)
* Copyright (c) 2004 David Grudl (http://davidgrudl.com)
*/
namespace Nette;
use Nette;
/**
* Defines an object that has a modifiable and a read-only (frozen) state.
*
* @author David Grudl
*
* @property-read bool $frozen
* @deprecated
*/
abstract class FreezableObject extends Object implements IFreezable
{
/** @var bool */
private $frozen = FALSE;
/**
* Makes the object unmodifiable.
* @return void
*/
public function freeze()
{
$this->frozen = TRUE;
}
/**
* Is the object unmodifiable?
* @return bool
*/
public function isFrozen()
{
return $this->frozen;
}
/**
* Creates a modifiable clone of the object.
* @return void
*/
public function __clone()
{
$this->frozen = FALSE;
}
/**
* @return void
*/
protected function updating()
{
if ($this->frozen) {
$class = get_class($this);
throw new InvalidStateException("Cannot modify a frozen object $class.");
}
}
}
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