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| <?php/* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */namespace Symfony\Component\VarDumper\Cloner;use Symfony\Component\VarDumper\Caster\Caster;use Symfony\Component\VarDumper\Exception\ThrowingCasterException;/** * AbstractCloner implements a generic caster mechanism for objects and resources. * * @author Nicolas Grekas <p@tchwork.com> */abstract class AbstractCloner implements ClonerInterface{    public static $defaultCasters = [        '__PHP_Incomplete_Class' => ['Symfony\Component\VarDumper\Caster\Caster', 'castPhpIncompleteClass'],        'Symfony\Component\VarDumper\Caster\CutStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castStub'],        'Symfony\Component\VarDumper\Caster\CutArrayStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castCutArray'],        'Symfony\Component\VarDumper\Caster\ConstStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castStub'],        'Symfony\Component\VarDumper\Caster\EnumStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castEnum'],        'Closure' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClosure'],        'Generator' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castGenerator'],        'ReflectionType' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castType'],        'ReflectionGenerator' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castReflectionGenerator'],        'ReflectionClass' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClass'],        'ReflectionFunctionAbstract' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castFunctionAbstract'],        'ReflectionMethod' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castMethod'],        'ReflectionParameter' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castParameter'],        'ReflectionProperty' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castProperty'],        'ReflectionReference' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castReference'],        'ReflectionExtension' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castExtension'],        'ReflectionZendExtension' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castZendExtension'],        'Doctrine\Common\Persistence\ObjectManager' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'Doctrine\Common\Proxy\Proxy' => ['Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castCommonProxy'],        'Doctrine\ORM\Proxy\Proxy' => ['Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castOrmProxy'],        'Doctrine\ORM\PersistentCollection' => ['Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castPersistentCollection'],        'Doctrine\Persistence\ObjectManager' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'DOMException' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castException'],        'DOMStringList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],        'DOMNameList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],        'DOMImplementation' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castImplementation'],        'DOMImplementationList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],        'DOMNode' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNode'],        'DOMNameSpaceNode' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNameSpaceNode'],        'DOMDocument' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDocument'],        'DOMNodeList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],        'DOMNamedNodeMap' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],        'DOMCharacterData' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castCharacterData'],        'DOMAttr' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castAttr'],        'DOMElement' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castElement'],        'DOMText' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castText'],        'DOMTypeinfo' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castTypeinfo'],        'DOMDomError' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDomError'],        'DOMLocator' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLocator'],        'DOMDocumentType' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDocumentType'],        'DOMNotation' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNotation'],        'DOMEntity' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castEntity'],        'DOMProcessingInstruction' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castProcessingInstruction'],        'DOMXPath' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castXPath'],        'XMLReader' => ['Symfony\Component\VarDumper\Caster\XmlReaderCaster', 'castXmlReader'],        'ErrorException' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castErrorException'],        'Exception' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castException'],        'Error' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castError'],        'Symfony\Component\DependencyInjection\ContainerInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'Symfony\Component\EventDispatcher\EventDispatcherInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'Symfony\Component\HttpClient\CurlHttpClient' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClient'],        'Symfony\Component\HttpClient\NativeHttpClient' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClient'],        'Symfony\Component\HttpClient\Response\CurlResponse' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClientResponse'],        'Symfony\Component\HttpClient\Response\NativeResponse' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClientResponse'],        'Symfony\Component\HttpFoundation\Request' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castRequest'],        'Symfony\Component\VarDumper\Exception\ThrowingCasterException' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castThrowingCasterException'],        'Symfony\Component\VarDumper\Caster\TraceStub' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castTraceStub'],        'Symfony\Component\VarDumper\Caster\FrameStub' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castFrameStub'],        'Symfony\Component\VarDumper\Cloner\AbstractCloner' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'Symfony\Component\ErrorHandler\Exception\SilencedErrorContext' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castSilencedErrorContext'],        'Imagine\Image\ImageInterface' => ['Symfony\Component\VarDumper\Caster\ImagineCaster', 'castImage'],        'Ramsey\Uuid\UuidInterface' => ['Symfony\Component\VarDumper\Caster\UuidCaster', 'castRamseyUuid'],        'ProxyManager\Proxy\ProxyInterface' => ['Symfony\Component\VarDumper\Caster\ProxyManagerCaster', 'castProxy'],        'PHPUnit_Framework_MockObject_MockObject' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'PHPUnit\Framework\MockObject\MockObject' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'PHPUnit\Framework\MockObject\Stub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'Prophecy\Prophecy\ProphecySubjectInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'Mockery\MockInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],        'PDO' => ['Symfony\Component\VarDumper\Caster\PdoCaster', 'castPdo'],        'PDOStatement' => ['Symfony\Component\VarDumper\Caster\PdoCaster', 'castPdoStatement'],        'AMQPConnection' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castConnection'],        'AMQPChannel' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castChannel'],        'AMQPQueue' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castQueue'],        'AMQPExchange' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castExchange'],        'AMQPEnvelope' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castEnvelope'],        'ArrayObject' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castArrayObject'],        'ArrayIterator' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castArrayIterator'],        'SplDoublyLinkedList' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castDoublyLinkedList'],        'SplFileInfo' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFileInfo'],        'SplFileObject' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFileObject'],        'SplHeap' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'],        'SplObjectStorage' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castObjectStorage'],        'SplPriorityQueue' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'],        'OuterIterator' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castOuterIterator'],        'WeakReference' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castWeakReference'],        'Redis' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedis'],        'RedisArray' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedisArray'],        'RedisCluster' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedisCluster'],        'DateTimeInterface' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castDateTime'],        'DateInterval' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castInterval'],        'DateTimeZone' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castTimeZone'],        'DatePeriod' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castPeriod'],        'GMP' => ['Symfony\Component\VarDumper\Caster\GmpCaster', 'castGmp'],        'MessageFormatter' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castMessageFormatter'],        'NumberFormatter' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castNumberFormatter'],        'IntlTimeZone' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castIntlTimeZone'],        'IntlCalendar' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castIntlCalendar'],        'IntlDateFormatter' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castIntlDateFormatter'],        'Memcached' => ['Symfony\Component\VarDumper\Caster\MemcachedCaster', 'castMemcached'],        'Ds\Collection' => ['Symfony\Component\VarDumper\Caster\DsCaster', 'castCollection'],        'Ds\Map' => ['Symfony\Component\VarDumper\Caster\DsCaster', 'castMap'],        'Ds\Pair' => ['Symfony\Component\VarDumper\Caster\DsCaster', 'castPair'],        'Symfony\Component\VarDumper\Caster\DsPairStub' => ['Symfony\Component\VarDumper\Caster\DsCaster', 'castPairStub'],        'mysqli_driver' => ['Symfony\Component\VarDumper\Caster\MysqliCaster', 'castMysqliDriver'],        'CurlHandle' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castCurl'],        ':curl' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castCurl'],        ':dba' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castDba'],        ':dba persistent' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castDba'],        'GdImage' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castGd'],        ':gd' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castGd'],        ':mysql link' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castMysqlLink'],        ':pgsql large object' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLargeObject'],        ':pgsql link' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'],        ':pgsql link persistent' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'],        ':pgsql result' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castResult'],        ':process' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castProcess'],        ':stream' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'],        'OpenSSLCertificate' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castOpensslX509'],        ':OpenSSL X.509' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castOpensslX509'],        ':persistent stream' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'],        ':stream-context' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStreamContext'],        'XmlParser' => ['Symfony\Component\VarDumper\Caster\XmlResourceCaster', 'castXml'],        ':xml' => ['Symfony\Component\VarDumper\Caster\XmlResourceCaster', 'castXml'],    ];    protected $maxItems = 2500;    protected $maxString = -1;    protected $minDepth = 1;    private $casters = [];    private $prevErrorHandler;    private $classInfo = [];    private $filter = 0;    /**     * @param callable[]|null $casters A map of casters     *     * @see addCasters     */    public function __construct(array $casters = null)    {        if (null === $casters) {            $casters = static::$defaultCasters;        }        $this->addCasters($casters);    }    /**     * Adds casters for resources and objects.     *     * Maps resources or objects types to a callback.     * Types are in the key, with a callable caster for value.     * Resource types are to be prefixed with a `:`,     * see e.g. static::$defaultCasters.     *     * @param callable[] $casters A map of casters     */    public function addCasters(array $casters)    {        foreach ($casters as $type => $callback) {            $this->casters[$type][] = $callback;        }    }    /**     * Sets the maximum number of items to clone past the minimum depth in nested structures.     *     * @param int $maxItems     */    public function setMaxItems($maxItems)    {        $this->maxItems = (int) $maxItems;    }    /**     * Sets the maximum cloned length for strings.     *     * @param int $maxString     */    public function setMaxString($maxString)    {        $this->maxString = (int) $maxString;    }    /**     * Sets the minimum tree depth where we are guaranteed to clone all the items.  After this     * depth is reached, only setMaxItems items will be cloned.     *     * @param int $minDepth     */    public function setMinDepth($minDepth)    {        $this->minDepth = (int) $minDepth;    }    /**     * Clones a PHP variable.     *     * @param mixed $var    Any PHP variable     * @param int   $filter A bit field of Caster::EXCLUDE_* constants     *     * @return Data The cloned variable represented by a Data object     */    public function cloneVar($var, $filter = 0)    {        $this->prevErrorHandler = set_error_handler(function ($type, $msg, $file, $line, $context = []) {            if (\E_RECOVERABLE_ERROR === $type || \E_USER_ERROR === $type) {                // Cloner never dies                throw new \ErrorException($msg, 0, $type, $file, $line);            }            if ($this->prevErrorHandler) {                return ($this->prevErrorHandler)($type, $msg, $file, $line, $context);            }            return false;        });        $this->filter = $filter;        if ($gc = gc_enabled()) {            gc_disable();        }        try {            return new Data($this->doClone($var));        } finally {            if ($gc) {                gc_enable();            }            restore_error_handler();            $this->prevErrorHandler = null;        }    }    /**     * Effectively clones the PHP variable.     *     * @param mixed $var Any PHP variable     *     * @return array The cloned variable represented in an array     */    abstract protected function doClone($var);    /**     * Casts an object to an array representation.     *     * @param bool $isNested True if the object is nested in the dumped structure     *     * @return array The object casted as array     */    protected function castObject(Stub $stub, $isNested)    {        $obj = $stub->value;        $class = $stub->class;        if (\PHP_VERSION_ID < 80000 ? "\0" === ($class[15] ?? null) : str_contains($class, "@anonymous\0")) {            $stub->class = get_debug_type($obj);        }        if (isset($this->classInfo[$class])) {            [$i, $parents, $hasDebugInfo, $fileInfo] = $this->classInfo[$class];        } else {            $i = 2;            $parents = [$class];            $hasDebugInfo = method_exists($class, '__debugInfo');            foreach (class_parents($class) as $p) {                $parents[] = $p;                ++$i;            }            foreach (class_implements($class) as $p) {                $parents[] = $p;                ++$i;            }            $parents[] = '*';            $r = new \ReflectionClass($class);            $fileInfo = $r->isInternal() || $r->isSubclassOf(Stub::class) ? [] : [                'file' => $r->getFileName(),                'line' => $r->getStartLine(),            ];            $this->classInfo[$class] = [$i, $parents, $hasDebugInfo, $fileInfo];        }        $stub->attr += $fileInfo;        $a = Caster::castObject($obj, $class, $hasDebugInfo, $stub->class);        try {            while ($i--) {                if (!empty($this->casters[$p = $parents[$i]])) {                    foreach ($this->casters[$p] as $callback) {                        $a = $callback($obj, $a, $stub, $isNested, $this->filter);                    }                }            }        } catch (\Exception $e) {            $a = [(Stub::TYPE_OBJECT === $stub->type ? Caster::PREFIX_VIRTUAL : '').'⚠' => new ThrowingCasterException($e)] + $a;        }        return $a;    }    /**     * Casts a resource to an array representation.     *     * @param bool $isNested True if the object is nested in the dumped structure     *     * @return array The resource casted as array     */    protected function castResource(Stub $stub, $isNested)    {        $a = [];        $res = $stub->value;        $type = $stub->class;        try {            if (!empty($this->casters[':'.$type])) {                foreach ($this->casters[':'.$type] as $callback) {                    $a = $callback($res, $a, $stub, $isNested, $this->filter);                }            }        } catch (\Exception $e) {            $a = [(Stub::TYPE_OBJECT === $stub->type ? Caster::PREFIX_VIRTUAL : '').'⚠' => new ThrowingCasterException($e)] + $a;        }        return $a;    }}
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