class DisallowNumericLiteralSeparatorSniff

class DisallowNumericLiteralSeparatorSniff implements Sniff {
    public const CODE_DISALLOWED_NUMERIC_LITERAL_SEPARATOR = 'DisallowedNumericLiteralSeparator';
    
    /**
     * @return array<int, (int|string)>
     */
    public function register() : array {
        return [
            T_LNUMBER,
            T_DNUMBER,
        ];
    }
    
    /**
     * @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
     * @param int $numberPointer
     */
    public function process(File $phpcsFile, $numberPointer) : void {
        $tokens = $phpcsFile->getTokens();
        if (strpos($tokens[$numberPointer]['content'], '_') === false) {
            return;
        }
        $fix = $phpcsFile->addFixableError('Use of numeric literal separator is disallowed.', $numberPointer, self::CODE_DISALLOWED_NUMERIC_LITERAL_SEPARATOR);
        if (!$fix) {
            return;
        }
        $phpcsFile->fixer
            ->beginChangeset();
        $phpcsFile->fixer
            ->replaceToken($numberPointer, str_replace('_', '', $tokens[$numberPointer]['content']));
        $phpcsFile->fixer
            ->endChangeset();
    }

}