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/ usr / share / php / Symfony / Component / ExpressionLanguage / Node /

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NullCoalesceNode.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\ExpressionLanguage\Node;

use Symfony\Component\ExpressionLanguage\Compiler;

/**
 * @author Fabien Potencier <fabien@symfony.com>
 *
 * @internal
 */
class NullCoalesceNode extends Node
{
    public function __construct(Node $expr1, Node $expr2)
    {
        parent::__construct(['expr1' => $expr1, 'expr2' => $expr2]);
    }

public function compile(Compiler $compiler): void
    {
        $compiler
            ->raw('((')
            ->compile($this->nodes['expr1'])
            ->raw(') ?? (')
            ->compile($this->nodes['expr2'])
            ->raw('))')
        ;
    }

public function evaluate(array $functions, array $values): mixed
    {
        if ($this->nodes['expr1'] instanceof GetAttrNode) {
            $this->addNullCoalesceAttributeToGetAttrNodes($this->nodes['expr1']);
        }

return $this->nodes['expr1']->evaluate($functions, $values) ?? $this->nodes['expr2']->evaluate($functions, $values);
    }

public function toArray(): array
    {
        return ['(', $this->nodes['expr1'], ') ?? (', $this->nodes['expr2'], ')'];
    }

private function addNullCoalesceAttributeToGetAttrNodes(Node $node): void
    {
        if (!$node instanceof GetAttrNode) {
            return;
        }

$node->attributes['is_null_coalesce'] = true;

foreach ($node->nodes as $node) {
            $this->addNullCoalesceAttributeToGetAttrNodes($node);
        }
    }
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	drwxr-xr-x	2024-07-28 09:11:43
..	dir	-	root/root	drwxr-xr-x	2024-07-28 09:11:43
ArgumentsNode.php	text/x-php	832 B	root/root	-rw-r--r--	2024-03-05 02:31:15
ArrayNode.php	text/x-php	2.7 KB	root/root	-rw-r--r--	2024-03-05 02:31:15
BinaryNode.php	text/x-php	6.27 KB	root/root	-rw-r--r--	2024-03-05 02:31:15
ConditionalNode.php	text/x-php	1.41 KB	root/root	-rw-r--r--	2024-03-05 02:31:15
ConstantNode.php	text/x-php	2.09 KB	root/root	-rw-r--r--	2024-03-05 02:31:15
FunctionNode.php	text/x-php	1.64 KB	root/root	-rw-r--r--	2024-03-05 02:31:15
GetAttrNode.php	text/x-php	6.03 KB	root/root	-rw-r--r--	2024-03-05 02:31:15
NameNode.php	text/x-php	942 B	root/root	-rw-r--r--	2024-03-05 02:31:15
Node.php	text/x-php	2.88 KB	root/root	-rw-r--r--	2024-03-05 02:31:15
NullCoalesceNode.php	text/x-php	1.65 KB	root/root	-rw-r--r--	2024-03-05 02:31:15
UnaryNode.php	text/x-php	1.43 KB	root/root	-rw-r--r--	2024-03-05 02:31:15