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331
vendor/symfony/var-dumper/Cloner/AbstractCloner.php
vendored
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331
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 = array(
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'__PHP_Incomplete_Class' => array('Symfony\Component\VarDumper\Caster\Caster', 'castPhpIncompleteClass'),
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'Symfony\Component\VarDumper\Caster\CutStub' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'castStub'),
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'Symfony\Component\VarDumper\Caster\CutArrayStub' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'castCutArray'),
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'Symfony\Component\VarDumper\Caster\ConstStub' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'castStub'),
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'Symfony\Component\VarDumper\Caster\EnumStub' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'castEnum'),
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'Closure' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClosure'),
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'Generator' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castGenerator'),
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'ReflectionType' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castType'),
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'ReflectionGenerator' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castReflectionGenerator'),
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'ReflectionClass' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClass'),
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'ReflectionFunctionAbstract' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castFunctionAbstract'),
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'ReflectionMethod' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castMethod'),
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'ReflectionParameter' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castParameter'),
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'ReflectionProperty' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castProperty'),
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'ReflectionExtension' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castExtension'),
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'ReflectionZendExtension' => array('Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castZendExtension'),
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'Doctrine\Common\Persistence\ObjectManager' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'),
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'Doctrine\Common\Proxy\Proxy' => array('Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castCommonProxy'),
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'Doctrine\ORM\Proxy\Proxy' => array('Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castOrmProxy'),
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'Doctrine\ORM\PersistentCollection' => array('Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castPersistentCollection'),
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'DOMException' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castException'),
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'DOMStringList' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'),
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'DOMNameList' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'),
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'DOMImplementation' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castImplementation'),
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'DOMImplementationList' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'),
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'DOMNode' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castNode'),
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'DOMNameSpaceNode' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castNameSpaceNode'),
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'DOMDocument' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castDocument'),
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'DOMNodeList' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'),
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'DOMNamedNodeMap' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'),
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'DOMCharacterData' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castCharacterData'),
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'DOMAttr' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castAttr'),
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'DOMElement' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castElement'),
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'DOMText' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castText'),
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'DOMTypeinfo' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castTypeinfo'),
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'DOMDomError' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castDomError'),
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'DOMLocator' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castLocator'),
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'DOMDocumentType' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castDocumentType'),
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'DOMNotation' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castNotation'),
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'DOMEntity' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castEntity'),
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'DOMProcessingInstruction' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castProcessingInstruction'),
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'DOMXPath' => array('Symfony\Component\VarDumper\Caster\DOMCaster', 'castXPath'),
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'XmlReader' => array('Symfony\Component\VarDumper\Caster\XmlReaderCaster', 'castXmlReader'),
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'ErrorException' => array('Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castErrorException'),
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'Exception' => array('Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castException'),
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'Error' => array('Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castError'),
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'Symfony\Component\DependencyInjection\ContainerInterface' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'),
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'Symfony\Component\HttpFoundation\Request' => array('Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castRequest'),
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'Symfony\Component\VarDumper\Exception\ThrowingCasterException' => array('Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castThrowingCasterException'),
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'Symfony\Component\VarDumper\Caster\TraceStub' => array('Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castTraceStub'),
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'Symfony\Component\VarDumper\Caster\FrameStub' => array('Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castFrameStub'),
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'Symfony\Component\Debug\Exception\SilencedErrorContext' => array('Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castSilencedErrorContext'),
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'PHPUnit_Framework_MockObject_MockObject' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'),
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'Prophecy\Prophecy\ProphecySubjectInterface' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'),
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'Mockery\MockInterface' => array('Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'),
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'PDO' => array('Symfony\Component\VarDumper\Caster\PdoCaster', 'castPdo'),
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'PDOStatement' => array('Symfony\Component\VarDumper\Caster\PdoCaster', 'castPdoStatement'),
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'AMQPConnection' => array('Symfony\Component\VarDumper\Caster\AmqpCaster', 'castConnection'),
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'AMQPChannel' => array('Symfony\Component\VarDumper\Caster\AmqpCaster', 'castChannel'),
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'AMQPQueue' => array('Symfony\Component\VarDumper\Caster\AmqpCaster', 'castQueue'),
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'AMQPExchange' => array('Symfony\Component\VarDumper\Caster\AmqpCaster', 'castExchange'),
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'AMQPEnvelope' => array('Symfony\Component\VarDumper\Caster\AmqpCaster', 'castEnvelope'),
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'ArrayObject' => array('Symfony\Component\VarDumper\Caster\SplCaster', 'castArrayObject'),
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'SplDoublyLinkedList' => array('Symfony\Component\VarDumper\Caster\SplCaster', 'castDoublyLinkedList'),
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'SplFileInfo' => array('Symfony\Component\VarDumper\Caster\SplCaster', 'castFileInfo'),
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'SplFileObject' => array('Symfony\Component\VarDumper\Caster\SplCaster', 'castFileObject'),
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'SplFixedArray' => array('Symfony\Component\VarDumper\Caster\SplCaster', 'castFixedArray'),
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'SplHeap' => array('Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'),
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'SplObjectStorage' => array('Symfony\Component\VarDumper\Caster\SplCaster', 'castObjectStorage'),
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'SplPriorityQueue' => array('Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'),
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'OuterIterator' => array('Symfony\Component\VarDumper\Caster\SplCaster', 'castOuterIterator'),
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'MongoCursorInterface' => array('Symfony\Component\VarDumper\Caster\MongoCaster', 'castCursor'),
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'Redis' => array('Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedis'),
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'RedisArray' => array('Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedisArray'),
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'DateTimeInterface' => array('Symfony\Component\VarDumper\Caster\DateCaster', 'castDateTime'),
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'DateInterval' => array('Symfony\Component\VarDumper\Caster\DateCaster', 'castInterval'),
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'DateTimeZone' => array('Symfony\Component\VarDumper\Caster\DateCaster', 'castTimeZone'),
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'DatePeriod' => array('Symfony\Component\VarDumper\Caster\DateCaster', 'castPeriod'),
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':curl' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castCurl'),
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':dba' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castDba'),
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':dba persistent' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castDba'),
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':gd' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castGd'),
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':mysql link' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castMysqlLink'),
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':pgsql large object' => array('Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLargeObject'),
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':pgsql link' => array('Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'),
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':pgsql link persistent' => array('Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'),
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':pgsql result' => array('Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castResult'),
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':process' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castProcess'),
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':stream' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'),
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':persistent stream' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'),
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':stream-context' => array('Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStreamContext'),
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':xml' => array('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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protected $useExt;
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private $casters = array();
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private $prevErrorHandler;
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private $classInfo = array();
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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($casters);
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$this->useExt = extension_loaded('symfony_debug');
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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 = array()) {
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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 call_user_func($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 = array(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[$class] = array($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 = array((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 = array();
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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 = array((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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