--- /dev/null
+<?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 = array(
+ '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',
+ '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',
+
+ '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',
+
+ '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\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',
+
+ 'PHPUnit_Framework_MockObject_MockObject' => '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',
+ 'SplDoublyLinkedList' => 'Symfony\Component\VarDumper\Caster\SplCaster::castDoublyLinkedList',
+ 'SplFileInfo' => 'Symfony\Component\VarDumper\Caster\SplCaster::castFileInfo',
+ 'SplFileObject' => 'Symfony\Component\VarDumper\Caster\SplCaster::castFileObject',
+ 'SplFixedArray' => 'Symfony\Component\VarDumper\Caster\SplCaster::castFixedArray',
+ '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',
+
+ 'MongoCursorInterface' => 'Symfony\Component\VarDumper\Caster\MongoCaster::castCursor',
+
+ ':curl' => 'Symfony\Component\VarDumper\Caster\ResourceCaster::castCurl',
+ ':dba' => 'Symfony\Component\VarDumper\Caster\ResourceCaster::castDba',
+ ':dba persistent' => 'Symfony\Component\VarDumper\Caster\ResourceCaster::castDba',
+ ':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',
+ ':persistent stream' => 'Symfony\Component\VarDumper\Caster\ResourceCaster::castStream',
+ ':stream-context' => 'Symfony\Component\VarDumper\Caster\ResourceCaster::castStreamContext',
+ ':xml' => 'Symfony\Component\VarDumper\Caster\XmlResourceCaster::castXml',
+ );
+
+ protected $maxItems = 2500;
+ protected $maxString = -1;
+ protected $useExt;
+
+ private $casters = array();
+ private $prevErrorHandler;
+ private $classInfo = array();
+ 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);
+ $this->useExt = extension_loaded('symfony_debug');
+ }
+
+ /**
+ * Adds casters for resources and objects.
+ *
+ * Maps resources or objects types to a callback.
+ * Types are in the key, with a callable caster for value.
+ * Resource types are to be prefixed with a `:`,
+ * see e.g. static::$defaultCasters.
+ *
+ * @param callable[] $casters A map of casters
+ */
+ public function addCasters(array $casters)
+ {
+ foreach ($casters as $type => $callback) {
+ $this->casters[strtolower($type)][] = $callback;
+ }
+ }
+
+ /**
+ * Sets the maximum number of items to clone past the first level 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;
+ }
+
+ /**
+ * 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->filter = $filter;
+ $this->prevErrorHandler = set_error_handler(array($this, 'handleError'));
+ try {
+ $data = $this->doClone($var);
+ } catch (\Exception $e) {
+ }
+ restore_error_handler();
+ $this->prevErrorHandler = null;
+
+ if (isset($e)) {
+ throw $e;
+ }
+
+ return new Data($data);
+ }
+
+ /**
+ * 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 Stub $stub The Stub for the casted object
+ * @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 = $stub->class;
+
+ if (isset($class[15]) && "\0" === $class[15] && 0 === strpos($class, "class@anonymous\x00")) {
+ $stub->class = get_parent_class($class).'@anonymous';
+ }
+ if (isset($this->classInfo[$class])) {
+ $classInfo = $this->classInfo[$class];
+ } else {
+ $classInfo = array(
+ new \ReflectionClass($class),
+ array_reverse(array($class => $class) + class_parents($class) + class_implements($class) + array('*' => '*')),
+ );
+
+ $this->classInfo[$class] = $classInfo;
+ }
+
+ $a = $this->callCaster('Symfony\Component\VarDumper\Caster\Caster::castObject', $obj, $classInfo[0], null, $isNested);
+
+ foreach ($classInfo[1] as $p) {
+ if (!empty($this->casters[$p = strtolower($p)])) {
+ foreach ($this->casters[$p] as $p) {
+ $a = $this->callCaster($p, $obj, $a, $stub, $isNested);
+ }
+ }
+ }
+
+ return $a;
+ }
+
+ /**
+ * Casts a resource to an array representation.
+ *
+ * @param Stub $stub The Stub for the casted resource
+ * @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 = array();
+ $res = $stub->value;
+ $type = $stub->class;
+
+ if (!empty($this->casters[':'.$type])) {
+ foreach ($this->casters[':'.$type] as $c) {
+ $a = $this->callCaster($c, $res, $a, $stub, $isNested);
+ }
+ }
+
+ return $a;
+ }
+
+ /**
+ * Calls a custom caster.
+ *
+ * @param callable $callback The caster
+ * @param object|resource $obj The object/resource being casted
+ * @param array $a The result of the previous cast for chained casters
+ * @param Stub $stub The Stub for the casted object/resource
+ * @param bool $isNested True if $obj is nested in the dumped structure
+ *
+ * @return array The casted object/resource
+ */
+ private function callCaster($callback, $obj, $a, $stub, $isNested)
+ {
+ try {
+ $cast = call_user_func($callback, $obj, $a, $stub, $isNested, $this->filter);
+
+ if (is_array($cast)) {
+ $a = $cast;
+ }
+ } catch (\Exception $e) {
+ $a[(Stub::TYPE_OBJECT === $stub->type ? Caster::PREFIX_VIRTUAL : '').'⚠'] = new ThrowingCasterException($e);
+ }
+
+ return $a;
+ }
+
+ /**
+ * Special handling for errors: cloning must be fail-safe.
+ *
+ * @internal
+ */
+ public function handleError($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 call_user_func($this->prevErrorHandler, $type, $msg, $file, $line, $context);
+ }
+
+ return false;
+ }
+}