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/opt/cpanel/ea-wappspector/vendor/slevomat/coding-standard/SlevomatCodingStandard/Sniffs/PHP/DisallowReferenceSniff.php

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<?php declare(strict_types = 1);

namespace SlevomatCodingStandard\Sniffs\PHP;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;
use SlevomatCodingStandard\Helpers\IdentificatorHelper;
use SlevomatCodingStandard\Helpers\TokenHelper;
use function array_key_exists;
use function in_array;
use const T_AS;
use const T_BITWISE_AND;
use const T_COMMA;
use const T_DOUBLE_ARROW;
use const T_EQUAL;
use const T_OPEN_PARENTHESIS;
use const T_OPEN_SHORT_ARRAY;
use const T_USE;

class DisallowReferenceSniff implements Sniff
{

public const CODE_DISALLOWED_PASSING_BY_REFERENCE = 'DisallowedPassingByReference';
	public const CODE_DISALLOWED_RETURNING_REFERENCE = 'DisallowedReturningReference';
	public const CODE_DISALLOWED_INHERITING_VARIABLE_BY_REFERENCE = 'DisallowedInheritingVariableByReference';
	public const CODE_DISALLOWED_ASSIGNING_BY_REFERENCE = 'DisallowedAssigningByReference';

/**
	 * @return array<int, (int|string)>
	 */
	public function register(): array
	{
		return [
			T_BITWISE_AND,
		];
	}

/**
	 * @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
	 * @param int $referencePointer
	 */
	public function process(File $phpcsFile, $referencePointer): void
	{
		$tokens = $phpcsFile->getTokens();

$previousPointer = TokenHelper::findPreviousEffective($phpcsFile, $referencePointer - 1);
		if (in_array($tokens[$previousPointer]['code'], TokenHelper::FUNCTION_TOKEN_CODES, true)) {
			$phpcsFile->addError('Returning reference is disallowed.', $referencePointer, self::CODE_DISALLOWED_RETURNING_REFERENCE);
			return;
		}

$previousParenthesisOpenerPointer = TokenHelper::findPrevious($phpcsFile, T_OPEN_PARENTHESIS, $referencePointer - 1);
		if (
			$previousParenthesisOpenerPointer !== null
			&& $tokens[$previousParenthesisOpenerPointer]['parenthesis_closer'] > $referencePointer
		) {
			if (array_key_exists('parenthesis_owner', $tokens[$previousParenthesisOpenerPointer])) {
				$parenthesisOwnerPointer = $tokens[$previousParenthesisOpenerPointer]['parenthesis_owner'];
				if (in_array($tokens[$parenthesisOwnerPointer]['code'], TokenHelper::FUNCTION_TOKEN_CODES, true)) {
					$phpcsFile->addError(
						'Passing by reference is disallowed.',
						$referencePointer,
						self::CODE_DISALLOWED_PASSING_BY_REFERENCE,
					);
					return;
				}
			}

$pointerBeforeParenthesisOpener = TokenHelper::findPreviousEffective($phpcsFile, $previousParenthesisOpenerPointer - 1);
			if (
				$pointerBeforeParenthesisOpener !== null
				&& $tokens[$pointerBeforeParenthesisOpener]['code'] === T_USE
			) {
				$phpcsFile->addError(
					'Inheriting variable by reference is disallowed.',
					$referencePointer,
					self::CODE_DISALLOWED_INHERITING_VARIABLE_BY_REFERENCE,
				);
				return;
			}
		}

/** @var int $variableStartPointer */
		$variableStartPointer = TokenHelper::findNextEffective($phpcsFile, $referencePointer + 1);
		$variableEndPointer = IdentificatorHelper::findEndPointer($phpcsFile, $variableStartPointer);

if ($variableEndPointer === null) {
			return;
		}

$previousPointer = TokenHelper::findPreviousEffective($phpcsFile, $referencePointer - 1);
		if (!in_array($tokens[$previousPointer]['code'], [T_EQUAL, T_DOUBLE_ARROW, T_OPEN_SHORT_ARRAY, T_COMMA, T_AS], true)) {
			return;
		}

$phpcsFile->addError('Assigning by reference is disallowed.', $referencePointer, self::CODE_DISALLOWED_ASSIGNING_BY_REFERENCE);
	}

}

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Name	Size	Perms	Modified	Actions
DisallowDirectMagicInvokeCallSniff.php	1.63 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
DisallowReferenceSniff.php	3.35 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
ForbiddenClassesSniff.php	8.01 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
OptimizedFunctionsWithoutUnpackingSniff.php	3.71 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
ReferenceSpacingSniff.php	4.00 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
RequireExplicitAssertionSniff.php	14.18 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
RequireNowdocSniff.php	2.00 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
ShortListSniff.php	1.30 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
TypeCastSniff.php	2.59 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
UselessParenthesesSniff.php	18.70 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive
UselessSemicolonSniff.php	4.24 KB	lrw-r--r--	2025-09-13 08:53:30	Edit Download recursive recursive

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