--- /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;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class Data
+{
+ private $data;
+ private $maxDepth = 20;
+ private $maxItemsPerDepth = -1;
+ private $useRefHandles = -1;
+
+ /**
+ * @param array $data A array as returned by ClonerInterface::cloneVar()
+ */
+ public function __construct(array $data)
+ {
+ $this->data = $data;
+ }
+
+ /**
+ * @return array The raw data structure
+ */
+ public function getRawData()
+ {
+ return $this->data;
+ }
+
+ /**
+ * Returns a depth limited clone of $this.
+ *
+ * @param int $maxDepth The max dumped depth level
+ *
+ * @return self A clone of $this
+ */
+ public function withMaxDepth($maxDepth)
+ {
+ $data = clone $this;
+ $data->maxDepth = (int) $maxDepth;
+
+ return $data;
+ }
+
+ /**
+ * Limits the number of elements per depth level.
+ *
+ * @param int $maxItemsPerDepth The max number of items dumped per depth level
+ *
+ * @return self A clone of $this
+ */
+ public function withMaxItemsPerDepth($maxItemsPerDepth)
+ {
+ $data = clone $this;
+ $data->maxItemsPerDepth = (int) $maxItemsPerDepth;
+
+ return $data;
+ }
+
+ /**
+ * Enables/disables objects' identifiers tracking.
+ *
+ * @param bool $useRefHandles False to hide global ref. handles
+ *
+ * @return self A clone of $this
+ */
+ public function withRefHandles($useRefHandles)
+ {
+ $data = clone $this;
+ $data->useRefHandles = $useRefHandles ? -1 : 0;
+
+ return $data;
+ }
+
+ /**
+ * Returns a depth limited clone of $this.
+ *
+ * @param int $maxDepth The max dumped depth level
+ * @param int $maxItemsPerDepth The max number of items dumped per depth level
+ * @param bool $useRefHandles False to hide ref. handles
+ *
+ * @return self A depth limited clone of $this
+ *
+ * @deprecated since Symfony 2.7, to be removed in 3.0. Use withMaxDepth, withMaxItemsPerDepth or withRefHandles instead.
+ */
+ public function getLimitedClone($maxDepth, $maxItemsPerDepth, $useRefHandles = true)
+ {
+ @trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.7 and will be removed in 3.0. Use withMaxDepth, withMaxItemsPerDepth or withRefHandles methods instead.', E_USER_DEPRECATED);
+
+ $data = clone $this;
+ $data->maxDepth = (int) $maxDepth;
+ $data->maxItemsPerDepth = (int) $maxItemsPerDepth;
+ $data->useRefHandles = $useRefHandles ? -1 : 0;
+
+ return $data;
+ }
+
+ /**
+ * Dumps data with a DumperInterface dumper.
+ */
+ public function dump(DumperInterface $dumper)
+ {
+ $refs = array(0);
+ $this->dumpItem($dumper, new Cursor(), $refs, $this->data[0][0]);
+ }
+
+ /**
+ * Depth-first dumping of items.
+ *
+ * @param DumperInterface $dumper The dumper being used for dumping
+ * @param Cursor $cursor A cursor used for tracking dumper state position
+ * @param array &$refs A map of all references discovered while dumping
+ * @param mixed $item A Stub object or the original value being dumped
+ */
+ private function dumpItem($dumper, $cursor, &$refs, $item)
+ {
+ $cursor->refIndex = 0;
+ $cursor->softRefTo = $cursor->softRefHandle = $cursor->softRefCount = 0;
+ $cursor->hardRefTo = $cursor->hardRefHandle = $cursor->hardRefCount = 0;
+ $firstSeen = true;
+
+ if (!$item instanceof Stub) {
+ $type = gettype($item);
+ } elseif (Stub::TYPE_REF === $item->type) {
+ if ($item->handle) {
+ if (!isset($refs[$r = $item->handle - (PHP_INT_MAX >> 1)])) {
+ $cursor->refIndex = $refs[$r] = $cursor->refIndex ?: ++$refs[0];
+ } else {
+ $firstSeen = false;
+ }
+ $cursor->hardRefTo = $refs[$r];
+ $cursor->hardRefHandle = $this->useRefHandles & $item->handle;
+ $cursor->hardRefCount = $item->refCount;
+ }
+ $type = $item->class ?: gettype($item->value);
+ $item = $item->value;
+ }
+ if ($item instanceof Stub) {
+ if ($item->refCount) {
+ if (!isset($refs[$r = $item->handle])) {
+ $cursor->refIndex = $refs[$r] = $cursor->refIndex ?: ++$refs[0];
+ } else {
+ $firstSeen = false;
+ }
+ $cursor->softRefTo = $refs[$r];
+ }
+ $cursor->softRefHandle = $this->useRefHandles & $item->handle;
+ $cursor->softRefCount = $item->refCount;
+ $cut = $item->cut;
+
+ if ($item->position && $firstSeen) {
+ $children = $this->data[$item->position];
+
+ if ($cursor->stop) {
+ if ($cut >= 0) {
+ $cut += count($children);
+ }
+ $children = array();
+ }
+ } else {
+ $children = array();
+ }
+ switch ($item->type) {
+ case Stub::TYPE_STRING:
+ $dumper->dumpString($cursor, $item->value, Stub::STRING_BINARY === $item->class, $cut);
+ break;
+
+ case Stub::TYPE_ARRAY:
+ $item = clone $item;
+ $item->type = $item->class;
+ $item->class = $item->value;
+ // No break;
+ case Stub::TYPE_OBJECT:
+ case Stub::TYPE_RESOURCE:
+ $withChildren = $children && $cursor->depth !== $this->maxDepth && $this->maxItemsPerDepth;
+ $dumper->enterHash($cursor, $item->type, $item->class, $withChildren);
+ if ($withChildren) {
+ $cut = $this->dumpChildren($dumper, $cursor, $refs, $children, $cut, $item->type);
+ } elseif ($children && 0 <= $cut) {
+ $cut += count($children);
+ }
+ $dumper->leaveHash($cursor, $item->type, $item->class, $withChildren, $cut);
+ break;
+
+ default:
+ throw new \RuntimeException(sprintf('Unexpected Stub type: %s', $item->type));
+ }
+ } elseif ('array' === $type) {
+ $dumper->enterHash($cursor, Cursor::HASH_INDEXED, 0, false);
+ $dumper->leaveHash($cursor, Cursor::HASH_INDEXED, 0, false, 0);
+ } elseif ('string' === $type) {
+ $dumper->dumpString($cursor, $item, false, 0);
+ } else {
+ $dumper->dumpScalar($cursor, $type, $item);
+ }
+ }
+
+ /**
+ * Dumps children of hash structures.
+ *
+ * @param DumperInterface $dumper
+ * @param Cursor $parentCursor The cursor of the parent hash
+ * @param array &$refs A map of all references discovered while dumping
+ * @param array $children The children to dump
+ * @param int $hashCut The number of items removed from the original hash
+ * @param string $hashType A Cursor::HASH_* const
+ *
+ * @return int The final number of removed items
+ */
+ private function dumpChildren($dumper, $parentCursor, &$refs, $children, $hashCut, $hashType)
+ {
+ $cursor = clone $parentCursor;
+ ++$cursor->depth;
+ $cursor->hashType = $hashType;
+ $cursor->hashIndex = 0;
+ $cursor->hashLength = count($children);
+ $cursor->hashCut = $hashCut;
+ foreach ($children as $key => $child) {
+ $cursor->hashKeyIsBinary = isset($key[0]) && !preg_match('//u', $key);
+ $cursor->hashKey = $key;
+ $this->dumpItem($dumper, $cursor, $refs, $child);
+ if (++$cursor->hashIndex === $this->maxItemsPerDepth || $cursor->stop) {
+ $parentCursor->stop = true;
+
+ return $hashCut >= 0 ? $hashCut + $cursor->hashLength - $cursor->hashIndex : $hashCut;
+ }
+ }
+
+ return $hashCut;
+ }
+}