Viewing file:  GetAttrExpression.php (2.72 KB) -rw-r--r--
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<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
* (c) Armin Ronacher
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Twig\Node\Expression;
use Twig\Compiler;
use Twig\Extension\SandboxExtension;
use Twig\Template;
class GetAttrExpression extends AbstractExpression
{
public function __construct(AbstractExpression $node, AbstractExpression $attribute, ?AbstractExpression $arguments, string $type, int $lineno)
{
$nodes = ['node' => $node, 'attribute' => $attribute];
if (null !== $arguments) {
$nodes['arguments'] = $arguments;
}
parent::__construct($nodes, ['type' => $type, 'is_defined_test' => false, 'ignore_strict_check' => false, 'optimizable' => true], $lineno);
}
public function compile(Compiler $compiler): void
{
$env = $compiler->getEnvironment();
// optimize array calls
if (
$this->getAttribute('optimizable')
&& (!$env->isStrictVariables() || $this->getAttribute('ignore_strict_check'))
&& !$this->getAttribute('is_defined_test')
&& Template::ARRAY_CALL === $this->getAttribute('type')
) {
$var = '$'.$compiler->getVarName();
$compiler
->raw('(('.$var.' = ')
->subcompile($this->getNode('node'))
->raw(') && is_array(')
->raw($var)
->raw(') || ')
->raw($var)
->raw(' instanceof ArrayAccess ? (')
->raw($var)
->raw('[')
->subcompile($this->getNode('attribute'))
->raw('] ?? null) : null)')
;
return;
}
$compiler->raw('twig_get_attribute($this->env, $this->source, ');
if ($this->getAttribute('ignore_strict_check')) {
$this->getNode('node')->setAttribute('ignore_strict_check', true);
}
$compiler
->subcompile($this->getNode('node'))
->raw(', ')
->subcompile($this->getNode('attribute'))
;
if ($this->hasNode('arguments')) {
$compiler->raw(', ')->subcompile($this->getNode('arguments'));
} else {
$compiler->raw(', []');
}
$compiler->raw(', ')
->repr($this->getAttribute('type'))
->raw(', ')->repr($this->getAttribute('is_defined_test'))
->raw(', ')->repr($this->getAttribute('ignore_strict_check'))
->raw(', ')->repr($env->hasExtension(SandboxExtension::class))
->raw(', ')->repr($this->getNode('node')->getTemplateLine())
->raw(')')
;
}
}
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