DisallowShortTernaryOperatorSniff.php

<?php

declare (strict_types=1);
namespace SlevomatCodingStandard\Sniffs\ControlStructures;

use PHP_CodeSniffer\Files\File;
use PHP_CodeSniffer\Sniffs\Sniff;
use SlevomatCodingStandard\Helpers\TokenHelper;
use function sprintf;
use const T_INLINE_ELSE;
use const T_INLINE_THEN;
use const T_VARIABLE;
class DisallowShortTernaryOperatorSniff implements Sniff {
    public const CODE_DISALLOWED_SHORT_TERNARY_OPERATOR = 'DisallowedShortTernaryOperator';
    
    /** @var bool */
    public $fixable = true;
    
    /**
     * @return array<int, (int|string)>
     */
    public function register() : array {
        return [
            T_INLINE_THEN,
        ];
    }
    
    /**
     * @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
     * @param int $inlineThenPointer
     */
    public function process(File $phpcsFile, $inlineThenPointer) : void {
        $tokens = $phpcsFile->getTokens();
        $nextPointer = TokenHelper::findNextEffective($phpcsFile, $inlineThenPointer + 1);
        if ($tokens[$nextPointer]['code'] !== T_INLINE_ELSE) {
            return;
        }
        $previousPointer = TokenHelper::findPreviousEffective($phpcsFile, $inlineThenPointer - 1);
        $message = 'Use of short ternary operator is disallowed.';
        if ($tokens[$previousPointer]['code'] !== T_VARIABLE) {
            $phpcsFile->addError($message, $inlineThenPointer, self::CODE_DISALLOWED_SHORT_TERNARY_OPERATOR);
            return;
        }
        if (!$this->fixable) {
            $phpcsFile->addError($message, $inlineThenPointer, self::CODE_DISALLOWED_SHORT_TERNARY_OPERATOR);
            return;
        }
        $fix = $phpcsFile->addFixableError($message, $inlineThenPointer, self::CODE_DISALLOWED_SHORT_TERNARY_OPERATOR);
        if (!$fix) {
            return;
        }
        $phpcsFile->fixer
            ->beginChangeset();
        $phpcsFile->fixer
            ->addContent($inlineThenPointer, sprintf(' %s ', $tokens[$previousPointer]['content']));
        $phpcsFile->fixer
            ->endChangeset();
    }

}