DisallowContinueWithoutIntegerOperandInSwitchSniff.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 array_reverse;
use function current;
use const T_CONTINUE;
use const T_LNUMBER;
use const T_SWITCH;
class DisallowContinueWithoutIntegerOperandInSwitchSniff implements Sniff {
    public const CODE_DISALLOWED_CONTINUE_WITHOUT_INTEGER_OPERAND_IN_SWITCH = 'DisallowedContinueWithoutIntegerOperandInSwitch';
    
    /**
     * @return array<int, (int|string)>
     */
    public function register() : array {
        return [
            T_CONTINUE,
        ];
    }
    
    /**
     * @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
     * @param int $continuePointer
     */
    public function process(File $phpcsFile, $continuePointer) : void {
        $tokens = $phpcsFile->getTokens();
        $operandPointer = TokenHelper::findNextEffective($phpcsFile, $continuePointer + 1);
        if ($tokens[$operandPointer]['code'] === T_LNUMBER) {
            return;
        }
        $conditionTokenCode = current(array_reverse($tokens[$continuePointer]['conditions']));
        if ($conditionTokenCode !== T_SWITCH) {
            return;
        }
        $fix = $phpcsFile->addFixableError('Usage of "continue" without integer operand in "switch" is disallowed, use "break" instead.', $continuePointer, self::CODE_DISALLOWED_CONTINUE_WITHOUT_INTEGER_OPERAND_IN_SWITCH);
        if (!$fix) {
            return;
        }
        $phpcsFile->fixer
            ->beginChangeset();
        $phpcsFile->fixer
            ->replaceToken($continuePointer, 'break');
        $phpcsFile->fixer
            ->endChangeset();
    }

}