/**
* Last update time.
*
* @param string $key
* @return int
*/
public function getTimestamp($key)
{
if (!$this->environment->cachable()) {
//Always expired
return 0;
}
if ($this->files->exists($key)) {
return $this->files->time($key);
}
return 0;
}
/**
* {@inheritdoc}
*/
public function generateKey($name, $className)
{
$hash = hash('md5', $className . '.' . $this->environment->getID());
return $this->environment->cacheDirectory() . '/' . $hash[0] . $hash[1] . '/' . $hash . '.php';
}
/**
* Modify given source.
*
* @param string $source Source.
* @param string $namespace View namespace.
* @param string $name View name (no extension included).
* @return mixed
*/
public function modify($source, $namespace, $name)
{
return preg_replace_callback($this->pattern, function ($matches) {
return $this->environment->getValue($matches[1]);
}, $source);
}
/**
* {@inheritdoc}
*
* @return $this
*/
public function setEnvironment(EnvironmentInterface $environment)
{
$this->environment = $environment;
if (!$environment->cachable()) {
$this->twig->setCache(false);
return $this;
}
$this->twig->setCache(new TwigCache($this->files, $environment));
return $this;
}
