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Edit File: GetAttrExpression.php

<?php
namespace MailPoetVendor\Twig\Node\Expression;
if (!defined('ABSPATH')) exit;
use MailPoetVendor\Twig\Compiler;
use MailPoetVendor\Twig\Extension\SandboxExtension;
use MailPoetVendor\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();
 $arrayAccessSandbox = \false;
 // optimize array calls
 if ($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($var);
 if (!$env->hasExtension(SandboxExtension::class)) {
 $compiler->raw(') || ')->raw($var)->raw(' instanceof ArrayAccess ? (')->raw($var)->raw('[')->subcompile($this->getNode('attribute'))->raw('] ?? null) : null)');
 return;
 }
 $arrayAccessSandbox = \true;
 $compiler->raw(') || ')->raw($var)->raw(' instanceof ArrayAccess && in_array(')->raw('get_class(' . $var . ')')->raw(', CoreExtension::ARRAY_LIKE_CLASSES, true) ? (')->raw($var)->raw('[')->subcompile($this->getNode('attribute'))->raw('] ?? null) : ');
 }
 $compiler->raw('CoreExtension::getAttribute($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(')');
 if ($arrayAccessSandbox) {
 $compiler->raw(')');
 }
 }
}

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