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✏️ Editing: DisallowObjectStringIndexSniff.php

<?php
/**
 * Ensures that object indexes are written in dot notation.
 *
 * @author    Sertan Danis <sdanis@squiz.net>
 * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/HEAD/licence.txt BSD Licence
 *
 * @deprecated 3.9.0
 */

namespace PHP_CodeSniffer\Standards\Squiz\Sniffs\Objects;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\DeprecatedSniff;
use PHP_CodeSniffer\Sniffs\Sniff;

class DisallowObjectStringIndexSniff implements Sniff, DeprecatedSniff
{

/**
     * A list of tokenizers this sniff supports.
     *
     * @var array
     */
    public $supportedTokenizers = ['JS'];

/**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array<int|string>
     */
    public function register()
    {
        return [T_OPEN_SQUARE_BRACKET];

}//end register()

/**
     * Processes this test, when one of its tokens is encountered.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the current token
     *                                               in the stack passed in $tokens.
     *
     * @return void
     */
    public function process(File $phpcsFile, $stackPtr)
    {
        $tokens = $phpcsFile->getTokens();

// Check if the next non whitespace token is a string.
        $index = $phpcsFile->findNext(T_WHITESPACE, ($stackPtr + 1), null, true);
        if ($tokens[$index]['code'] !== T_CONSTANT_ENCAPSED_STRING) {
            return;
        }

// Make sure it is the only thing in the square brackets.
        $next = $phpcsFile->findNext(T_WHITESPACE, ($index + 1), null, true);
        if ($tokens[$next]['code'] !== T_CLOSE_SQUARE_BRACKET) {
            return;
        }

// Allow indexes that have dots in them because we can't write
        // them in dot notation.
        $content = trim($tokens[$index]['content'], '"\' ');
        if (strpos($content, '.') !== false) {
            return;
        }

// Also ignore reserved words.
        if ($content === 'super') {
            return;
        }

// Token before the opening square bracket cannot be a var name.
        $prev = $phpcsFile->findPrevious(T_WHITESPACE, ($stackPtr - 1), null, true);
        if ($tokens[$prev]['code'] === T_STRING) {
            $error = 'Object indexes must be written in dot notation';
            $phpcsFile->addError($error, $prev, 'Found');
        }

}//end process()

/**
     * Provide the version number in which the sniff was deprecated.
     *
     * @return string
     */
    public function getDeprecationVersion()
    {
        return 'v3.9.0';

}//end getDeprecationVersion()

/**
     * Provide the version number in which the sniff will be removed.
     *
     * @return string
     */
    public function getRemovalVersion()
    {
        return 'v4.0.0';

}//end getRemovalVersion()

/**
     * Provide a custom message to display with the deprecation.
     *
     * @return string
     */
    public function getDeprecationMessage()
    {
        return 'Support for scanning JavaScript files will be removed completely in v4.0.0.';

}//end getDeprecationMessage()

}//end class

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