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340
vendor/symfony/var-dumper/Cloner/AbstractCloner.php
vendored
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340
vendor/symfony/var-dumper/Cloner/AbstractCloner.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\VarDumper\Cloner;
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use Symfony\Component\VarDumper\Caster\Caster;
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use Symfony\Component\VarDumper\Exception\ThrowingCasterException;
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/**
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* AbstractCloner implements a generic caster mechanism for objects and resources.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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abstract class AbstractCloner implements ClonerInterface
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{
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public static $defaultCasters = [
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'__PHP_Incomplete_Class' => ['Symfony\Component\VarDumper\Caster\Caster', 'castPhpIncompleteClass'],
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'Symfony\Component\VarDumper\Caster\CutStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castStub'],
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'Symfony\Component\VarDumper\Caster\CutArrayStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castCutArray'],
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'Symfony\Component\VarDumper\Caster\ConstStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castStub'],
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'Symfony\Component\VarDumper\Caster\EnumStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castEnum'],
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'Closure' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClosure'],
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'Generator' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castGenerator'],
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'ReflectionType' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castType'],
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'ReflectionGenerator' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castReflectionGenerator'],
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'ReflectionClass' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClass'],
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'ReflectionFunctionAbstract' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castFunctionAbstract'],
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'ReflectionMethod' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castMethod'],
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'ReflectionParameter' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castParameter'],
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'ReflectionProperty' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castProperty'],
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'ReflectionExtension' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castExtension'],
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'ReflectionZendExtension' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castZendExtension'],
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'Doctrine\Common\Persistence\ObjectManager' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
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'Doctrine\Common\Proxy\Proxy' => ['Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castCommonProxy'],
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'Doctrine\ORM\Proxy\Proxy' => ['Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castOrmProxy'],
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'Doctrine\ORM\PersistentCollection' => ['Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castPersistentCollection'],
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'DOMException' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castException'],
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'DOMStringList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
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'DOMNameList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
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'DOMImplementation' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castImplementation'],
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'DOMImplementationList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
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'DOMNode' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNode'],
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'DOMNameSpaceNode' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNameSpaceNode'],
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'DOMDocument' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDocument'],
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'DOMNodeList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
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'DOMNamedNodeMap' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
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'DOMCharacterData' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castCharacterData'],
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'DOMAttr' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castAttr'],
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'DOMElement' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castElement'],
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'DOMText' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castText'],
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'DOMTypeinfo' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castTypeinfo'],
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'DOMDomError' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDomError'],
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'DOMLocator' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLocator'],
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'DOMDocumentType' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDocumentType'],
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'DOMNotation' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNotation'],
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'DOMEntity' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castEntity'],
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'DOMProcessingInstruction' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castProcessingInstruction'],
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'DOMXPath' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castXPath'],
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'XmlReader' => ['Symfony\Component\VarDumper\Caster\XmlReaderCaster', 'castXmlReader'],
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'ErrorException' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castErrorException'],
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'Exception' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castException'],
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'Error' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castError'],
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'Symfony\Component\DependencyInjection\ContainerInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
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'Symfony\Component\HttpFoundation\Request' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castRequest'],
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'Symfony\Component\VarDumper\Exception\ThrowingCasterException' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castThrowingCasterException'],
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'Symfony\Component\VarDumper\Caster\TraceStub' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castTraceStub'],
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'Symfony\Component\VarDumper\Caster\FrameStub' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castFrameStub'],
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'Symfony\Component\Debug\Exception\SilencedErrorContext' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castSilencedErrorContext'],
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'ProxyManager\Proxy\ProxyInterface' => ['Symfony\Component\VarDumper\Caster\ProxyManagerCaster', 'castProxy'],
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'PHPUnit_Framework_MockObject_MockObject' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
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'Prophecy\Prophecy\ProphecySubjectInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
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'Mockery\MockInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
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'PDO' => ['Symfony\Component\VarDumper\Caster\PdoCaster', 'castPdo'],
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'PDOStatement' => ['Symfony\Component\VarDumper\Caster\PdoCaster', 'castPdoStatement'],
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'AMQPConnection' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castConnection'],
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'AMQPChannel' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castChannel'],
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'AMQPQueue' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castQueue'],
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'AMQPExchange' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castExchange'],
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'AMQPEnvelope' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castEnvelope'],
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'ArrayObject' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castArrayObject'],
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'ArrayIterator' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castArrayIterator'],
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'SplDoublyLinkedList' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castDoublyLinkedList'],
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'SplFileInfo' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFileInfo'],
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'SplFileObject' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFileObject'],
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'SplFixedArray' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFixedArray'],
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'SplHeap' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'],
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'SplObjectStorage' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castObjectStorage'],
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'SplPriorityQueue' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'],
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'OuterIterator' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castOuterIterator'],
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'Redis' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedis'],
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'RedisArray' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedisArray'],
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'RedisCluster' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedisCluster'],
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'DateTimeInterface' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castDateTime'],
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'DateInterval' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castInterval'],
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'DateTimeZone' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castTimeZone'],
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'DatePeriod' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castPeriod'],
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'GMP' => ['Symfony\Component\VarDumper\Caster\GmpCaster', 'castGmp'],
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'MessageFormatter' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castMessageFormatter'],
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'NumberFormatter' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castNumberFormatter'],
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'IntlTimeZone' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castIntlTimeZone'],
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'IntlCalendar' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castIntlCalendar'],
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'IntlDateFormatter' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castIntlDateFormatter'],
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'Memcached' => ['Symfony\Component\VarDumper\Caster\MemcachedCaster', 'castMemcached'],
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':curl' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castCurl'],
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':dba' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castDba'],
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':dba persistent' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castDba'],
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':gd' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castGd'],
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':mysql link' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castMysqlLink'],
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':pgsql large object' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLargeObject'],
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':pgsql link' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'],
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':pgsql link persistent' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'],
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':pgsql result' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castResult'],
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':process' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castProcess'],
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':stream' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'],
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':persistent stream' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'],
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':stream-context' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStreamContext'],
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':xml' => ['Symfony\Component\VarDumper\Caster\XmlResourceCaster', 'castXml'],
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];
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protected $maxItems = 2500;
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protected $maxString = -1;
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protected $minDepth = 1;
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private $casters = [];
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private $prevErrorHandler;
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private $classInfo = [];
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private $filter = 0;
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/**
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* @param callable[]|null $casters A map of casters
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*
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* @see addCasters
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*/
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public function __construct(array $casters = null)
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{
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if (null === $casters) {
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$casters = static::$defaultCasters;
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}
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$this->addCasters($casters);
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}
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/**
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* Adds casters for resources and objects.
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*
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* Maps resources or objects types to a callback.
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* Types are in the key, with a callable caster for value.
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* Resource types are to be prefixed with a `:`,
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* see e.g. static::$defaultCasters.
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*
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* @param callable[] $casters A map of casters
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*/
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public function addCasters(array $casters)
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{
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foreach ($casters as $type => $callback) {
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$this->casters[strtolower($type)][] = \is_string($callback) && false !== strpos($callback, '::') ? explode('::', $callback, 2) : $callback;
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}
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}
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/**
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* Sets the maximum number of items to clone past the minimum depth in nested structures.
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*
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* @param int $maxItems
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*/
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public function setMaxItems($maxItems)
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{
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$this->maxItems = (int) $maxItems;
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}
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/**
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* Sets the maximum cloned length for strings.
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*
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* @param int $maxString
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*/
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public function setMaxString($maxString)
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{
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$this->maxString = (int) $maxString;
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}
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/**
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* Sets the minimum tree depth where we are guaranteed to clone all the items. After this
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* depth is reached, only setMaxItems items will be cloned.
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*
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* @param int $minDepth
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*/
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public function setMinDepth($minDepth)
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{
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$this->minDepth = (int) $minDepth;
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}
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/**
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* Clones a PHP variable.
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*
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* @param mixed $var Any PHP variable
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* @param int $filter A bit field of Caster::EXCLUDE_* constants
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*
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* @return Data The cloned variable represented by a Data object
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*/
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public function cloneVar($var, $filter = 0)
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{
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$this->prevErrorHandler = set_error_handler(function ($type, $msg, $file, $line, $context = []) {
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if (E_RECOVERABLE_ERROR === $type || E_USER_ERROR === $type) {
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// Cloner never dies
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throw new \ErrorException($msg, 0, $type, $file, $line);
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}
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if ($this->prevErrorHandler) {
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return ($this->prevErrorHandler)($type, $msg, $file, $line, $context);
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}
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return false;
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});
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$this->filter = $filter;
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if ($gc = gc_enabled()) {
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gc_disable();
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}
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try {
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return new Data($this->doClone($var));
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} finally {
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if ($gc) {
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gc_enable();
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}
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restore_error_handler();
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$this->prevErrorHandler = null;
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}
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}
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/**
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* Effectively clones the PHP variable.
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*
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* @param mixed $var Any PHP variable
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*
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* @return array The cloned variable represented in an array
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*/
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abstract protected function doClone($var);
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/**
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* Casts an object to an array representation.
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*
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* @param Stub $stub The Stub for the casted object
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* @param bool $isNested True if the object is nested in the dumped structure
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*
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* @return array The object casted as array
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*/
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protected function castObject(Stub $stub, $isNested)
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{
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$obj = $stub->value;
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$class = $stub->class;
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if (isset($class[15]) && "\0" === $class[15] && 0 === strpos($class, "class@anonymous\x00")) {
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$stub->class = get_parent_class($class).'@anonymous';
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}
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if (isset($this->classInfo[$class])) {
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list($i, $parents, $hasDebugInfo) = $this->classInfo[$class];
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} else {
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$i = 2;
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$parents = [strtolower($class)];
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$hasDebugInfo = method_exists($class, '__debugInfo');
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foreach (class_parents($class) as $p) {
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$parents[] = strtolower($p);
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++$i;
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}
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foreach (class_implements($class) as $p) {
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$parents[] = strtolower($p);
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++$i;
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}
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$parents[] = '*';
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$this->classInfo[$class] = [$i, $parents, $hasDebugInfo];
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}
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$a = Caster::castObject($obj, $class, $hasDebugInfo);
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try {
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while ($i--) {
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if (!empty($this->casters[$p = $parents[$i]])) {
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foreach ($this->casters[$p] as $callback) {
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$a = $callback($obj, $a, $stub, $isNested, $this->filter);
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}
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}
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}
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} catch (\Exception $e) {
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$a = [(Stub::TYPE_OBJECT === $stub->type ? Caster::PREFIX_VIRTUAL : '').'⚠' => new ThrowingCasterException($e)] + $a;
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}
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return $a;
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}
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/**
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* Casts a resource to an array representation.
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*
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* @param Stub $stub The Stub for the casted resource
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* @param bool $isNested True if the object is nested in the dumped structure
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*
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* @return array The resource casted as array
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*/
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protected function castResource(Stub $stub, $isNested)
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{
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$a = [];
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$res = $stub->value;
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$type = $stub->class;
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try {
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if (!empty($this->casters[':'.$type])) {
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foreach ($this->casters[':'.$type] as $callback) {
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$a = $callback($res, $a, $stub, $isNested, $this->filter);
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}
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}
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} catch (\Exception $e) {
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$a = [(Stub::TYPE_OBJECT === $stub->type ? Caster::PREFIX_VIRTUAL : '').'⚠' => new ThrowingCasterException($e)] + $a;
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}
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return $a;
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}
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}
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