Current File : /home/vacivi36/code/vendor/friendsofphp/php-cs-fixer/src/Tokenizer/Analyzer/AttributeAnalyzer.php
<?php
declare(strict_types=1);
/*
* This file is part of PHP CS Fixer.
*
* (c) Fabien Potencier <fabien@symfony.com>
* Dariusz Rumiński <dariusz.ruminski@gmail.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
namespace PhpCsFixer\Tokenizer\Analyzer;
use PhpCsFixer\Tokenizer\CT;
use PhpCsFixer\Tokenizer\Tokens;
/**
* @internal
*/
final class AttributeAnalyzer
{
private const TOKEN_KINDS_NOT_ALLOWED_IN_ATTRIBUTE = [
';',
'{',
[T_ATTRIBUTE],
[T_FUNCTION],
[T_OPEN_TAG],
[T_OPEN_TAG_WITH_ECHO],
[T_PRIVATE],
[T_PROTECTED],
[T_PUBLIC],
[T_RETURN],
[T_VARIABLE],
[CT::T_ATTRIBUTE_CLOSE],
];
/**
* Check if given index is an attribute declaration.
*/
public static function isAttribute(Tokens $tokens, int $index): bool
{
if (
!\defined('T_ATTRIBUTE') // attributes not available, PHP version lower than 8.0
|| !$tokens[$index]->isGivenKind(T_STRING) // checked token is not a string
|| !$tokens->isAnyTokenKindsFound([T_ATTRIBUTE]) // no attributes in the tokens collection
) {
return false;
}
$attributeStartIndex = $tokens->getPrevTokenOfKind($index, self::TOKEN_KINDS_NOT_ALLOWED_IN_ATTRIBUTE);
if (!$tokens[$attributeStartIndex]->isGivenKind(T_ATTRIBUTE)) {
return false;
}
// now, between attribute start and the attribute candidate index cannot be more "(" than ")"
$count = 0;
for ($i = $attributeStartIndex + 1; $i < $index; ++$i) {
if ($tokens[$i]->equals('(')) {
++$count;
} elseif ($tokens[$i]->equals(')')) {
--$count;
}
}
return 0 === $count;
}
}
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