interface Primitives {
  attribute boolean truth;
  attribute byte character;
  attribute octet value;
  attribute short number;
  attribute unsigned short positive;
  attribute long big;
  attribute unsigned long bigpositive;
  attribute long long bigbig;
  attribute  unsigned long long bigbigpositive;
  attribute float real;
  attribute double bigreal; 
  attribute unrestricted float realwithinfinity;
  attribute unrestricted double bigrealwithinfinity; 
  attribute DOMString string; 
  attribute ByteString bytes; 
  attribute Date date;
  attribute RegExp regexp;
};