third_party/web_platform_tests/WebIDL/valid/xml/callback.widlprocxml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Definitions SYSTEM "widlprocxml.dtd">
<Definitions>
  <webidl>callback AsyncOperationCallback = void (DOMString status);

callback interface EventHandler {
  void eventOccurred(DOMString details);
};</webidl>
  <Callback name="AsyncOperationCallback" id="::AsyncOperationCallback">
    <webidl>callback AsyncOperationCallback = void (DOMString status);</webidl>
    <Type type="void"/>
    <ArgumentList>
      <Argument name="status">
        <Type type="DOMString"/>
      </Argument>
    </ArgumentList>
  </Callback>
  <Interface name="EventHandler" callback="callback" id="::EventHandler">
    <webidl>callback interface EventHandler {
  void eventOccurred(DOMString details);
};</webidl>
    <Operation name="eventOccurred" id="::EventHandler::eventOccurred">
      <webidl>  void eventOccurred(DOMString details);</webidl>
      <Type type="void"/>
      <ArgumentList>
        <Argument name="details">
          <Type type="DOMString"/>
        </Argument>
      </ArgumentList>
    </Operation>
  </Interface>
</Definitions>