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

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Definitions SYSTEM "widlprocxml.dtd">
<Definitions>
  <webidl>  interface Node {
    readonly attribute unsigned short nodeType;
  };

  interface EventTarget {
    void addEventListener(DOMString type,
                          <ref>EventListener</ref> listener,
                          boolean useCapture);
  };

  <ref>Node</ref> implements <ref>EventTarget</ref>;</webidl>
  <Interface name="Node" id="::Node">
    <webidl>  interface Node {
    readonly attribute unsigned short nodeType;
  };</webidl>
    <Attribute readonly="readonly" name="nodeType" id="::Node::nodeType">
      <webidl>    readonly attribute unsigned short nodeType;</webidl>
      <Type type="unsigned short"/>
    </Attribute>
  </Interface>
  <Interface name="EventTarget" id="::EventTarget">
    <webidl>  interface EventTarget {
    void addEventListener(DOMString type,
                          <ref>EventListener</ref> listener,
                          boolean useCapture);
  };</webidl>
    <Operation name="addEventListener" id="::EventTarget::addEventListener">
      <webidl>    void addEventListener(DOMString type,
                          <ref>EventListener</ref> listener,
                          boolean useCapture);</webidl>
      <Type type="void"/>
      <ArgumentList>
        <Argument name="type">
          <Type type="DOMString"/>
        </Argument>
        <Argument name="listener">
          <Type name="EventListener"/>
        </Argument>
        <Argument name="useCapture">
          <Type type="boolean"/>
        </Argument>
      </ArgumentList>
    </Operation>
  </Interface>
  <Implements name1="Node" name2="EventTarget">
    <webidl>  <ref>Node</ref> implements <ref>EventTarget</ref>;</webidl>
  </Implements>
</Definitions>