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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'],
'Symfony\Component\VarDumper\Caster\ScalarStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castScalar'],
'Fiber' => ['Symfony\Component\VarDumper\Caster\FiberCaster', 'castFiber'],
'Closure' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClosure'],
'Generator' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castGenerator'],
'ReflectionType' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castType'],
'ReflectionAttribute' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castAttribute'],
'ReflectionGenerator' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castReflectionGenerator'],
'ReflectionClass' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClass'],
'ReflectionClassConstant' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClassConstant'],
'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'],
'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\Bridge\Monolog\Logger' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
'Symfony\Component\DependencyInjection\ContainerInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
'Symfony\Component\EventDispatcher\EventDispatcherInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
'Symfony\Component\HttpClient\AmpHttpClient' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClient'],
'Symfony\Component\HttpClient\CurlHttpClient' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClient'],
'Symfony\Component\HttpClient\NativeHttpClient' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClient'],
'Symfony\Component\HttpClient\Response\AmpResponse' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClientResponse'],
'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\Uid\Ulid' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castUlid'],
'Symfony\Component\Uid\Uuid' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castUuid'],
'Symfony\Component\VarExporter\Internal\LazyObjectState' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castLazyObjectState'],
'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\FlattenException' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castFlattenException'],
'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'],
'WeakMap' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castWeakMap'],
'WeakReference' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castWeakReference'],
'Redis' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedis'],
'Relay\Relay' => ['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'],
':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'],
':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'],
'RdKafka' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castRdKafka'],
'RdKafka\Conf' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castConf'],
'RdKafka\KafkaConsumer' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castKafkaConsumer'],
'RdKafka\Metadata\Broker' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castBrokerMetadata'],
'RdKafka\Metadata\Collection' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castCollectionMetadata'],
'RdKafka\Metadata\Partition' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castPartitionMetadata'],
'RdKafka\Metadata\Topic' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopicMetadata'],
'RdKafka\Message' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castMessage'],
'RdKafka\Topic' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopic'],
'RdKafka\TopicPartition' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopicPartition'],
'RdKafka\TopicConf' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopicConf'],
'FFI\CData' => ['Symfony\Component\VarDumper\Caster\FFICaster', 'castCTypeOrCData'],
'FFI\CType' => ['Symfony\Component\VarDumper\Caster\FFICaster', 'castCTypeOrCData'],
];
protected $maxItems = 2500;
protected $maxString = -1;
protected $minDepth = 1;
/**
* @var array<string, list<callable>>
*/
private array $casters = [];
/**
* @var callable|null
*/
private $prevErrorHandler;
private array $classInfo = [];
private int $filter = 0;
/**
* @param callable[]|null $casters A map of casters
*
* @see addCasters
*/
public function __construct(array $casters = null)
{
$this->addCasters($casters ?? static::$defaultCasters);
}
/**
* Adds casters for resources and objects.
*
* Maps resources or objects types to a callback.
* Types are in the key, with a callable caster for value.
* Resource types are to be prefixed with a `:`,
* see e.g. static::$defaultCasters.
*
* @param callable[] $casters A map of casters
*
* @return void
*/
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.
*
* @return void
*/
public function setMaxItems(int $maxItems)
{
$this->maxItems = $maxItems;
}
/**
* Sets the maximum cloned length for strings.
*
* @return void
*/
public function setMaxString(int $maxString)
{
$this->maxString = $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.
*
* @return void
*/
public function setMinDepth(int $minDepth)
{
$this->minDepth = $minDepth;
}
/**
* Clones a PHP variable.
*
* @param int $filter A bit field of Caster::EXCLUDE_* constants
*/
public function cloneVar(mixed $var, int $filter = 0): Data
{
$this->prevErrorHandler = set_error_handler(function ($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.
*/
abstract protected function doClone(mixed $var): array;
/**
* Casts an object to an array representation.
*
* @param bool $isNested True if the object is nested in the dumped structure
*/
protected function castObject(Stub $stub, bool $isNested): array
{
$obj = $stub->value;
$class = $stub->class;
if (str_contains($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
*/
protected function castResource(Stub $stub, bool $isNested): array
{
$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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