<?php
namespace ElementorDeps\DI\Definition\Source;
use ElementorDeps\DI\Definition\AutowireDefinition;
use ElementorDeps\DI\Definition\Definition;
use ElementorDeps\DI\Definition\ObjectDefinition;
/**
* Decorator that caches another definition source.
*
* @author Matthieu Napoli <matthieu@mnapoli.fr>
*/
class SourceCache implements DefinitionSource, MutableDefinitionSource
{
/**
* @var string
*/
const CACHE_KEY = 'php-di.definitions.';
/**
* @var DefinitionSource
*/
private $cachedSource;
/**
* @var string
*/
private $cacheNamespace;
public function __construct(DefinitionSource $cachedSource, string $cacheNamespace = '')
{
$this->cachedSource = $cachedSource;
$this->cacheNamespace = $cacheNamespace;
}
public function getDefinition(string $name)
{
$definition = \apcu_fetch($this->getCacheKey($name));
if ($definition === \false) {
$definition = $this->cachedSource->getDefinition($name);
// Update the cache
if ($this->shouldBeCached($definition)) {
\apcu_store($this->getCacheKey($name), $definition);
}
}
return $definition;
}
/**
* Used only for the compilation so we can skip the cache safely.
*/
public function getDefinitions() : array
{
return $this->cachedSource->getDefinitions();
}
public static function isSupported() : bool
{
return \function_exists('apcu_fetch') && \ini_get('apc.enabled') && !('cli' === \PHP_SAPI && !\ini_get('apc.enable_cli'));
}
public function getCacheKey(string $name) : string
{
return self::CACHE_KEY . $this->cacheNamespace . $name;
}
public function addDefinition(Definition $definition)
{
throw new \LogicException('You cannot set a definition at runtime on a container that has caching enabled. Doing so would risk caching the definition for the next execution, where it might be different. You can either put your definitions in a file, remove the cache or ->set() a raw value directly (PHP object, string, int, ...) instead of a PHP-DI definition.');
}
private function shouldBeCached(Definition $definition = null) : bool
{
return $definition === null || $definition instanceof ObjectDefinition || $definition instanceof AutowireDefinition;
}
}