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path: root/dom/bindings/parser/tests/test_typedef.py
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def WebIDLTest(parser, harness):
    parser.parse(
        """
      typedef long mylong;
      typedef long? mynullablelong;
      interface Foo {
        const mylong X = 5;
        undefined foo(optional mynullablelong arg = 7);
        undefined bar(optional mynullablelong arg = null);
        undefined baz(mylong arg);
      };
    """
    )

    results = parser.finish()

    harness.check(
        results[2].members[1].signatures()[0][1][0].type.name,
        "LongOrNull",
        "Should expand typedefs",
    )

    parser = parser.reset()
    threw = False
    try:
        parser.parse(
            """
          typedef long? mynullablelong;
          interface Foo {
            undefined foo(mynullablelong? Y);
          };
        """
        )
        results = parser.finish()
    except Exception:
        threw = True

    harness.ok(threw, "Should have thrown on nullable inside nullable arg.")

    parser = parser.reset()
    threw = False
    try:
        parser.parse(
            """
          typedef long? mynullablelong;
          interface Foo {
            const mynullablelong? X = 5;
          };
        """
        )
        results = parser.finish()
    except Exception:
        threw = True

    harness.ok(threw, "Should have thrown on nullable inside nullable const.")

    parser = parser.reset()
    threw = False
    try:
        parser.parse(
            """
          interface Foo {
            const mynullablelong? X = 5;
          };
          typedef long? mynullablelong;
        """
        )
        results = parser.finish()
    except Exception:
        threw = True

    harness.ok(
        threw,
        "Should have thrown on nullable inside nullable const typedef "
        "after interface.",
    )

    parser = parser.reset()
    parser.parse(
        """
      interface Foo {
        const mylong X = 5;
      };
      typedef long mylong;
    """
    )

    results = parser.finish()

    harness.check(
        results[0].members[0].type.name,
        "Long",
        "Should expand typedefs that come before interface",
    )