Symfony Profiler

<?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\Cache\Adapter;
use Psr\Cache\CacheItemInterface;
use Psr\Cache\CacheItemPoolInterface;
use Symfony\Component\Cache\CacheItem;
use Symfony\Component\Cache\Exception\InvalidArgumentException;
use Symfony\Component\Cache\PruneableInterface;
use Symfony\Component\Cache\ResettableInterface;
use Symfony\Component\Cache\Traits\PhpArrayTrait;
/**
* Caches items at warm up time using a PHP array that is stored in shared memory by OPCache since PHP 7.0.
* Warmed up items are read-only and run-time discovered items are cached using a fallback adapter.
*
* @author Titouan Galopin <galopintitouan@gmail.com>
* @author Nicolas Grekas <p@tchwork.com>
*/
class PhpArrayAdapter implements AdapterInterface, PruneableInterface, ResettableInterface
{
use PhpArrayTrait;
private $createCacheItem;
/**
* @param string $file The PHP file were values are cached
* @param AdapterInterface $fallbackPool A pool to fallback on when an item is not hit
*/
public function __construct($file, AdapterInterface $fallbackPool)
{
$this->file = $file;
$this->pool = $fallbackPool;
$this->zendDetectUnicode = filter_var(ini_get('zend.detect_unicode'), FILTER_VALIDATE_BOOLEAN);
$this->createCacheItem = \Closure::bind(
static function ($key, $value, $isHit) {
$item = new CacheItem();
$item->key = $key;
$item->value = $value;
$item->isHit = $isHit;
return $item;
},
null,
CacheItem::class
);
}
/**
* This adapter should only be used on PHP 7.0+ to take advantage of how PHP
* stores arrays in its latest versions. This factory method decorates the given
* fallback pool with this adapter only if the current PHP version is supported.
*
* @param string $file The PHP file were values are cached
* @param CacheItemPoolInterface $fallbackPool Fallback for old PHP versions or opcache disabled
*
* @return CacheItemPoolInterface
*/
public static function create($file, CacheItemPoolInterface $fallbackPool)
{
// Shared memory is available in PHP 7.0+ with OPCache enabled and in HHVM
if ((\PHP_VERSION_ID >= 70000 && filter_var(ini_get('opcache.enable'), FILTER_VALIDATE_BOOLEAN)) || \defined('HHVM_VERSION')) {
if (!$fallbackPool instanceof AdapterInterface) {
$fallbackPool = new ProxyAdapter($fallbackPool);
}
return new static($file, $fallbackPool);
}
return $fallbackPool;
}
/**
* {@inheritdoc}
*/
public function getItem($key)
{
if (!\is_string($key)) {
throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
}
if (null === $this->values) {
$this->initialize();
}
if (!isset($this->values[$key])) {
return $this->pool->getItem($key);
}
$value = $this->values[$key];
$isHit = true;
if ('N;' === $value) {
$value = null;
} elseif (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
try {
$e = null;
$value = unserialize($value);
} catch (\Error $e) {
} catch (\Exception $e) {
}
if (null !== $e) {
$value = null;
$isHit = false;
}
}
$f = $this->createCacheItem;
return $f($key, $value, $isHit);
}
/**
* {@inheritdoc}
*/
public function getItems(array $keys = [])
{
foreach ($keys as $key) {
if (!\is_string($key)) {
throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
}
}
if (null === $this->values) {
$this->initialize();
}
return $this->generateItems($keys);
}
/**
* {@inheritdoc}
*/
public function hasItem($key)
{
if (!\is_string($key)) {
throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
}
if (null === $this->values) {
$this->initialize();
}
return isset($this->values[$key]) || $this->pool->hasItem($key);
}
/**
* {@inheritdoc}
*/
public function deleteItem($key)
{
if (!\is_string($key)) {
throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
}
if (null === $this->values) {
$this->initialize();
}
return !isset($this->values[$key]) && $this->pool->deleteItem($key);
}
/**
* {@inheritdoc}
*/
public function deleteItems(array $keys)
{
$deleted = true;
$fallbackKeys = [];
foreach ($keys as $key) {
if (!\is_string($key)) {
throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
}
if (isset($this->values[$key])) {
$deleted = false;
} else {
$fallbackKeys[] = $key;
}
}
if (null === $this->values) {
$this->initialize();
}
if ($fallbackKeys) {
$deleted = $this->pool->deleteItems($fallbackKeys) && $deleted;
}
return $deleted;
}
/**
* {@inheritdoc}
*/
public function save(CacheItemInterface $item)
{
if (null === $this->values) {
$this->initialize();
}
return !isset($this->values[$item->getKey()]) && $this->pool->save($item);
}
/**
* {@inheritdoc}
*/
public function saveDeferred(CacheItemInterface $item)
{
if (null === $this->values) {
$this->initialize();
}
return !isset($this->values[$item->getKey()]) && $this->pool->saveDeferred($item);
}
/**
* {@inheritdoc}
*/
public function commit()
{
return $this->pool->commit();
}
/**
* @return \Generator
*/
private function generateItems(array $keys)
{
$f = $this->createCacheItem;
$fallbackKeys = [];
foreach ($keys as $key) {
if (isset($this->values[$key])) {
$value = $this->values[$key];
if ('N;' === $value) {
yield $key => $f($key, null, true);
} elseif (\is_string($value) && isset($value[2]) && ':' === $value[1]) {
try {
yield $key => $f($key, unserialize($value), true);
} catch (\Error $e) {
yield $key => $f($key, null, false);
} catch (\Exception $e) {
yield $key => $f($key, null, false);
}
} else {
yield $key => $f($key, $value, true);
}
} else {
$fallbackKeys[] = $key;
}
}
if ($fallbackKeys) {
foreach ($this->pool->getItems($fallbackKeys) as $key => $item) {
yield $key => $item;
}
}
}
/**
* @throws \ReflectionException When $class is not found and is required
*
* @internal to be removed in Symfony 5.0
*/
public static function throwOnRequiredClass($class)
{
$e = new \ReflectionException("Class $class does not exist");
$trace = $e->getTrace();
$autoloadFrame = [
'function' => 'spl_autoload_call',
'args' => [$class],
];
$i = 1 + array_search($autoloadFrame, $trace, true);
if (isset($trace[$i]['function']) && !isset($trace[$i]['class'])) {
switch ($trace[$i]['function']) {
case 'get_class_methods':
case 'get_class_vars':
case 'get_parent_class':
case 'is_a':
case 'is_subclass_of':
case 'class_exists':
case 'class_implements':
case 'class_parents':
case 'trait_exists':
case 'defined':
case 'interface_exists':
case 'method_exists':
case 'property_exists':
case 'is_callable':
return;
}
}
throw $e;
}
}

vendor/symfony/cache/Adapter/PhpArrayAdapter.php line 94