forked from twigphp/Twig
/
MacroAutoImportNodeVisitor.php
76 lines (66 loc) · 2.25 KB
/
MacroAutoImportNodeVisitor.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
<?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) {
$body = [new ImportNode(new NameExpression('_self', 0), new AssignNameExpression('_self', 0), 0, 'import', true)];
foreach ($node->getNode('body') as $n) {
$body[] = $n;
}
$node->setNode('body', new Node($body));
}
} 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;
}
}