class NamedArgumentSpacingSniff

class NamedArgumentSpacingSniff implements Sniff {
    public const CODE_WHITESPACE_BEFORE_COLON = 'WhitespaceBeforeColon';
    public const CODE_NO_WHITESPACE_AFTER_COLON = 'NoWhitespaceAfterColon';
    
    /**
     * @return list<string>
     */
    public function register() : array {
        return [
            T_PARAM_NAME,
        ];
    }
    
    /**
     * @phpcsSuppress SlevomatCodingStandard.TypeHints.ParameterTypeHint.MissingNativeTypeHint
     * @param int $pointer
     */
    public function process(File $phpcsFile, $pointer) : void {
        $tokens = $phpcsFile->getTokens();
        
        /** @var int $colonPointer */
        $colonPointer = TokenHelper::findNext($phpcsFile, T_COLON, $pointer + 1);
        $parameterName = $tokens[$pointer]['content'];
        if ($colonPointer !== $pointer + 1) {
            $fix = $phpcsFile->addFixableError(sprintf('There must be no whitespace between named argument "%s" and colon.', $parameterName), $colonPointer, self::CODE_WHITESPACE_BEFORE_COLON);
            if ($fix) {
                $phpcsFile->fixer
                    ->replaceToken($colonPointer - 1, '');
            }
        }
        $whitespacePointer = $colonPointer + 1;
        if ($tokens[$whitespacePointer]['code'] === T_WHITESPACE && $tokens[$whitespacePointer]['content'] === ' ') {
            return;
        }
        $fix = $phpcsFile->addFixableError(sprintf('There must be exactly one space after colon in named argument "%s".', $parameterName), $colonPointer, self::CODE_NO_WHITESPACE_AFTER_COLON);
        if (!$fix) {
            return;
        }
        if ($tokens[$whitespacePointer]['code'] === T_WHITESPACE) {
            $phpcsFile->fixer
                ->replaceToken($whitespacePointer, ' ');
        }
        else {
            $phpcsFile->fixer
                ->addContent($colonPointer, ' ');
        }
    }

}