src/Activator/CacheActivator.php
public function isActive($name, Context $context)
    {
        $hash = static::CACHE_KEY . '#' . $this->getName() . '#' . md5($name . '-' . $context->serialize());

        // Step 1: Try get from memory cache
        if (array_key_exists($hash, $this->memory)) {
            return $this->memory[$hash];
        }

        // Step 2: Try get from (optional) cache
        $cacheItem = null;
        if ($this->cachePool !== null) {
            $cacheItem = $this->cachePool->getItem($hash);

            if ($cacheItem->isHit()) {
                $this->memory[$hash] = $cacheItem->get();
                return $this->memory[$hash];
            }
        }

        // Step 3: Get from activators and save to cache
        $this->memory[$hash] = $this->activator->isActive($name, $context);

        // Write result to cache
        if ($this->cachePool !== null && $cacheItem !== null) {
            $cacheItem->set($this->memory[$hash]);
            $cacheItem->expiresAfter($this->cacheTtl);
            $this->cachePool->save($cacheItem);
        }

        return $this->memory[$hash];
    }
public function isActive($name, Context $context)
    {
        $hash = static::CACHE_KEY . '#' . $this->getName() . '#' . md5($name . '-' . $context->serialize());

        // Step 1: Try get from memory cache
        if (array_key_exists($hash, $this->memory)) {
            return $this->memory[$hash];
        }

        // Step 2: Try get from (optional) cache
        $cacheItem = null;
        if ($this->cachePool !== null) {
            $cacheItem = $this->cachePool->getItem($hash);

            if ($cacheItem->isHit()) {
                $this->memory[$hash] = $cacheItem->get();
                return $this->memory[$hash];
            }
        }

        // Step 3: Get from activators and save to cache
        $this->memory[$hash] = $this->activator->isActive($name, $context);

        // Write result to cache
        if ($this->cachePool !== null && $cacheItem !== null) {
            $cacheItem->set($this->memory[$hash]);
            $cacheItem->expiresAfter($this->cacheTtl);
            $this->cachePool->save($cacheItem);
        }

        return $this->memory[$hash];
    }
{@inheritdoc}