SetNode.php
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<?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\Node;
use Twig\Compiler;
use Twig\Node\Expression\ConstantExpression;
/**
* Represents a set node.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class SetNode extends Node implements NodeCaptureInterface
{
public function __construct($capture, \Twig_NodeInterface $names, \Twig_NodeInterface $values, $lineno, $tag = null)
{
parent::__construct(['names' => $names, 'values' => $values], ['capture' => $capture, 'safe' => false], $lineno, $tag);
/*
* Optimizes the node when capture is used for a large block of text.
*
* {% set foo %}foo{% endset %} is compiled to $context['foo'] = new Twig\Markup("foo");
*/
if ($this->getAttribute('capture')) {
$this->setAttribute('safe', true);
$values = $this->getNode('values');
if ($values instanceof TextNode) {
$this->setNode('values', new ConstantExpression($values->getAttribute('data'), $values->getTemplateLine()));
$this->setAttribute('capture', false);
}
}
}
public function compile(Compiler $compiler)
{
$compiler->addDebugInfo($this);
if (\count($this->getNode('names')) > 1) {
$compiler->write('list(');
foreach ($this->getNode('names') as $idx => $node) {
if ($idx) {
$compiler->raw(', ');
}
$compiler->subcompile($node);
}
$compiler->raw(')');
} else {
if ($this->getAttribute('capture')) {
$compiler
->write("ob_start();\n")
->subcompile($this->getNode('values'))
;
}
$compiler->subcompile($this->getNode('names'), false);
if ($this->getAttribute('capture')) {
$compiler->raw(" = ('' === \$tmp = ob_get_clean()) ? '' : new Markup(\$tmp, \$this->env->getCharset())");
}
}
if (!$this->getAttribute('capture')) {
$compiler->raw(' = ');
if (\count($this->getNode('names')) > 1) {
$compiler->write('[');
foreach ($this->getNode('values') as $idx => $value) {
if ($idx) {
$compiler->raw(', ');
}
$compiler->subcompile($value);
}
$compiler->raw(']');
} else {
if ($this->getAttribute('safe')) {
$compiler
->raw("('' === \$tmp = ")
->subcompile($this->getNode('values'))
->raw(") ? '' : new Markup(\$tmp, \$this->env->getCharset())")
;
} else {
$compiler->subcompile($this->getNode('values'));
}
}
}
$compiler->raw(";\n");
}
}
class_alias('Twig\Node\SetNode', 'Twig_Node_Set');