/** {@inheritdoc} */
public function perform(Context $context)
{
return $context->override($this->overrideContext);
}
/** {@inheritdoc} */
public function evaluate(Context $context = null)
{
$string = new StringTemplate($this->value);
$variables = $context ? $context->getIterator()->getArrayCopy() : array();
return $string->render($variables);
}