<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Twig\NodeVisitor;
use Twig\Environment;
use Twig\Node\Expression\AssignNameExpression;
use Twig\Node\Expression\ConstantExpression;
use Twig\Node\Expression\GetAttrExpression;
use Twig\Node\Expression\MethodCallExpression;
use Twig\Node\Expression\NameExpression;
use Twig\Node\ImportNode;
use Twig\Node\ModuleNode;
use Twig\Node\Node;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
final class MacroAutoImportNodeVisitor implements NodeVisitorInterface
{
private $inAModule = false;
private $hasMacroCalls = false;
public function enterNode(Node $node, Environment $env)
{
if ($node instanceof ModuleNode) {
$this->inAModule = true;
$this->hasMacroCalls = false;
}
return $node;
}
public function leaveNode(Node $node, Environment $env)
{
if ($node instanceof ModuleNode) {
$this->inAModule = false;
if ($this->hasMacroCalls) {
$node->getNode('constructor_end')->setNode('_auto_macro_import', new ImportNode(new NameExpression('_self', 0), new AssignNameExpression('_self', 0), 0, 'import', true));
}
} elseif ($this->inAModule) {
if (
$node instanceof GetAttrExpression &&
$node->getNode('node') instanceof NameExpression &&
'_self' === $node->getNode('node')->getAttribute('name') &&
$node->getNode('attribute') instanceof ConstantExpression
) {
$this->hasMacroCalls = true;
$name = $node->getNode('attribute')->getAttribute('value');
$node = new MethodCallExpression($node->getNode('node'), 'macro_'.$name, $node->getNode('arguments'), $node->getTemplateLine());
$node->setAttribute('safe', true);
}
}
return $node;
}
public function getPriority()
{
// we must be ran before auto-escaping
return -10;
}
}