third_party/web_platform_tests/WebIDL/valid/idl/attributes.widl

// Extracted from http://dev.w3.org/2006/webapi/WebIDL/ on 2011-05-06
exception InvalidName {
  DOMString reason;
};

exception NoSuchPet { };

interface Person {

  // A simple attribute that can be set to any value the range an unsigned
  // short can take.
  attribute unsigned short age;

};