Файл: symfony-2.7/src/Symfony/Component/VarDumper/Cloner/Data.php
Строк: 186
<?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 SymfonyComponentVarDumperCloner;
/**
* @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.
* @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 $this.
*/
public function getLimitedClone($maxDepth, $maxItemsPerDepth, $useRefHandles = true)
{
$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:
$dumper->enterHash($cursor, $item->class, $item->value, (bool) $children);
$cut = $this->dumpChildren($dumper, $cursor, $refs, $children, $cut, $item->class);
$dumper->leaveHash($cursor, $item->class, $item->value, (bool) $children, $cut);
break;
case Stub::TYPE_OBJECT:
case Stub::TYPE_RESOURCE:
$dumper->enterHash($cursor, $item->type, $item->class, (bool) $children);
$cut = $this->dumpChildren($dumper, $cursor, $refs, $children, $cut, $item->type);
$dumper->leaveHash($cursor, $item->type, $item->class, (bool) $children, $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, $hashType)
{
if ($children) {
if ($parentCursor->depth !== $this->maxDepth && $this->maxItemsPerDepth) {
$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 = $cursor->hashKeyIsBinary ? self::utf8Encode($key) : $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 : $hashCut;
}
}
} elseif ($hashCut >= 0) {
$hashCut += count($children);
}
}
return $hashCut;
}
/**
* Portable variant of utf8_encode()
*
* @param string $s
*
* @return string
*
* @internal
*/
public static function utf8Encode($s)
{
if (function_exists('mb_convert_encoding')) {
return mb_convert_encoding($s, 'UTF-8', 'CP1252');
}
$s .= $s;
$len = strlen($s);
for ($i = $len >> 1, $j = 0; $i < $len; ++$i, ++$j) {
switch (true) {
case $s[$i] < "x80": $s[$j] = $s[$i]; break;
case $s[$i] < "xC0": $s[$j] = "xC2"; $s[++$j] = $s[$i]; break;
default: $s[$j] = "xC3"; $s[++$j] = chr(ord($s[$i]) - 64); break;
}
}
return substr($s, 0, $j);
}
}