code: func (ss *superset) FileNameString() string {
  	v := ss.FileName
  	if v == "" {
  		v = stringFromMixedArray(ss.FileNameBytes)
  	}
  	if v != "" {
  		if strings.Contains(v, "/") {
  			// Bogus schema blob; ignore.
  			return ""
  		}
  		if strings.Contains(v, "\\") {
  			// Bogus schema blob; ignore.
  			return ""
  		}
  	}
  	return v
  }
docs: // FileNameString returns the schema blob's base filename.
  //
  // If the fileName field of the blob accidentally or maliciously
  // contains a slash, this function returns an empty string instead.