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✏️ Editing: NoMultilineWhitespaceAroundDoubleArrowFixer.php

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<?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\Fixer\ArrayNotation;

use PhpCsFixer\AbstractFixer;
use PhpCsFixer\FixerDefinition\CodeSample;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;

/**
 * @author Carlos Cirello <carlos.cirello.nl@gmail.com>
 * @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
 * @author Graham Campbell <hello@gjcampbell.co.uk>
 */
final class NoMultilineWhitespaceAroundDoubleArrowFixer extends AbstractFixer
{
    public function getDefinition(): FixerDefinitionInterface
    {
        return new FixerDefinition(
            'Operator `=>` should not be surrounded by multi-line whitespaces.',
            [new CodeSample("<?php\n\$a = array(1\n\n=> 2);\n")]
        );
    }

/**
     * {@inheritdoc}
     *
     * Must run before BinaryOperatorSpacesFixer, MethodArgumentSpaceFixer.
     */
    public function getPriority(): int
    {
        return 31;
    }

public function isCandidate(Tokens $tokens): bool
    {
        return $tokens->isTokenKindFound(T_DOUBLE_ARROW);
    }

protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
    {
        foreach ($tokens as $index => $token) {
            if (!$token->isGivenKind(T_DOUBLE_ARROW)) {
                continue;
            }

if (!$tokens[$index - 2]->isComment() || str_starts_with($tokens[$index - 2]->getContent(), '/*')) {
                $this->fixWhitespace($tokens, $index - 1);
            }

// do not move anything about if there is a comment following the whitespace
            if (!$tokens[$index + 2]->isComment()) {
                $this->fixWhitespace($tokens, $index + 1);
            }
        }
    }

private function fixWhitespace(Tokens $tokens, int $index): void
    {
        $token = $tokens[$index];

if ($token->isWhitespace() && !$token->isWhitespace(" \t")) {
            $tokens[$index] = new Token([T_WHITESPACE, rtrim($token->getContent()).' ']);
        }
    }
}

✏️ Editing: NoMultilineWhitespaceAroundDoubleArrowFixer.php

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