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✏️ Editing: RequireTrailingCommaInCallSniff.php

<?php declare(strict_types = 1);

namespace SlevomatCodingStandard\Sniffs\Functions;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;
use SlevomatCodingStandard\Helpers\FixerHelper;
use SlevomatCodingStandard\Helpers\SniffSettingsHelper;
use SlevomatCodingStandard\Helpers\TokenHelper;
use function in_array;
use const T_CLOSE_PARENTHESIS;
use const T_COMMA;
use const T_ISSET;
use const T_OPEN_PARENTHESIS;
use const T_PARENT;
use const T_SELF;
use const T_STATIC;
use const T_STRING;
use const T_UNSET;
use const T_VARIABLE;

class RequireTrailingCommaInCallSniff implements Sniff
{

public const CODE_MISSING_TRAILING_COMMA = 'MissingTrailingComma';

public ?bool $enable = null;

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

/**
	 * @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
	 * @param int $parenthesisOpenerPointer
	 */
	public function process(File $phpcsFile, $parenthesisOpenerPointer): void
	{
		$this->enable = SniffSettingsHelper::isEnabledByPhpVersion($this->enable, 70300);

if (!$this->enable) {
			return;
		}

$tokens = $phpcsFile->getTokens();

$pointerBeforeParenthesisOpener = TokenHelper::findPreviousEffective($phpcsFile, $parenthesisOpenerPointer - 1);

if (!in_array(
			$tokens[$pointerBeforeParenthesisOpener]['code'],
			[...TokenHelper::ONLY_NAME_TOKEN_CODES, T_STRING, T_VARIABLE, T_ISSET, T_UNSET, T_CLOSE_PARENTHESIS, T_SELF, T_STATIC, T_PARENT],
			true,
		)) {
			return;
		}

$functionPointer = TokenHelper::findPreviousEffective($phpcsFile, $pointerBeforeParenthesisOpener - 1);
		if (in_array($tokens[$functionPointer]['code'], TokenHelper::FUNCTION_TOKEN_CODES, true)) {
			return;
		}

$parenthesisCloserPointer = $tokens[$parenthesisOpenerPointer]['parenthesis_closer'];

if ($tokens[$parenthesisOpenerPointer]['line'] === $tokens[$parenthesisCloserPointer]['line']) {
			return;
		}

$pointerBeforeParenthesisCloser = TokenHelper::findPreviousEffective($phpcsFile, $parenthesisCloserPointer - 1);
		if ($pointerBeforeParenthesisCloser === $parenthesisOpenerPointer) {
			return;
		}

if ($tokens[$parenthesisCloserPointer]['line'] === $tokens[$pointerBeforeParenthesisCloser]['line']) {
			return;
		}

if ($tokens[$pointerBeforeParenthesisCloser]['code'] === T_COMMA) {
			return;
		}

$fix = $phpcsFile->addFixableError(
			'Multi-line function calls must have a trailing comma after the last parameter.',
			$pointerBeforeParenthesisCloser,
			self::CODE_MISSING_TRAILING_COMMA,
		);

if (!$fix) {
			return;
		}

$phpcsFile->fixer->beginChangeset();
		FixerHelper::add($phpcsFile, $pointerBeforeParenthesisCloser, ',');
		$phpcsFile->fixer->endChangeset();
	}

}

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