src/third_party/web_platform_tests/WebIDL/valid/xml/nullableobjects.widlprocxml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Definitions SYSTEM "widlprocxml.dtd">
<Definitions>
  <webidl>interface A {
};
interface B {
};
interface C {
  void f(<ref>A</ref>? x);
  void f(<ref>B</ref>? x);

};</webidl>
  <Interface name="A" id="::A">
    <webidl>interface A {
};</webidl>
  </Interface>
  <Interface name="B" id="::B">
    <webidl>interface B {
};</webidl>
  </Interface>
  <Interface name="C" id="::C">
    <webidl>interface C {
  void f(<ref>A</ref>? x);
  void f(<ref>B</ref>? x);

};</webidl>
    <Operation name="f" id="::C::f">
      <webidl>  void f(<ref>A</ref>? x);</webidl>
      <Type type="void"/>
      <ArgumentList>
        <Argument name="x">
          <Type name="A" nullable="nullable"/>
        </Argument>
      </ArgumentList>
    </Operation>
    <Operation name="f" id="::C::f">
      <webidl>  void f(<ref>B</ref>? x);</webidl>
      <Type type="void"/>
      <ArgumentList>
        <Argument name="x">
          <Type name="B" nullable="nullable"/>
        </Argument>
      </ArgumentList>
    </Operation>
  </Interface>
</Definitions>