/**
* Optimizes print nodes.
*
* It replaces:
*
* * "echo $this->render(Parent)Block()" with "$this->display(Parent)Block()"
* * "echo $this->getContext('...')" with "if (isset('...')) { echo '...' }"
*
* @param Twig_NodeInterface $node A Node
* @param Twig_Environment $env The current Twig environment
*/
protected function optimizePrintNode($node, $env)
{
if (!$node instanceof Twig_Node_Print) {
return $node;
}
if ($node->getNode('expr') instanceof Twig_Node_Expression_BlockReference || $node->getNode('expr') instanceof Twig_Node_Expression_Parent || $node->getNode('expr') instanceof Twig_Node_Expression_Name && !$env->hasExtension('sandbox') && !$env->isStrictVariables()) {
$node->getNode('expr')->setAttribute('output', true);
return $node->getNode('expr');
}
return $node;
}
