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path: root/dom/bindings/parser/tests/test_constructor.py
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import WebIDL

def WebIDLTest(parser, harness):
    def checkArgument(argument, QName, name, type, optional, variadic):
        harness.ok(isinstance(argument, WebIDL.IDLArgument),
                   "Should be an IDLArgument")
        harness.check(argument.identifier.QName(), QName, "Argument has the right QName")
        harness.check(argument.identifier.name, name, "Argument has the right name")
        harness.check(str(argument.type), type, "Argument has the right return type")
        harness.check(argument.optional, optional, "Argument has the right optional value")
        harness.check(argument.variadic, variadic, "Argument has the right variadic value")

    def checkMethod(method, QName, name, signatures,
                    static=True, getter=False, setter=False, creator=False,
                    deleter=False, legacycaller=False, stringifier=False,
                    chromeOnly=False, htmlConstructor=False):
        harness.ok(isinstance(method, WebIDL.IDLMethod),
                   "Should be an IDLMethod")
        harness.ok(method.isMethod(), "Method is a method")
        harness.ok(not method.isAttr(), "Method is not an attr")
        harness.ok(not method.isConst(), "Method is not a const")
        harness.check(method.identifier.QName(), QName, "Method has the right QName")
        harness.check(method.identifier.name, name, "Method has the right name")
        harness.check(method.isStatic(), static, "Method has the correct static value")
        harness.check(method.isGetter(), getter, "Method has the correct getter value")
        harness.check(method.isSetter(), setter, "Method has the correct setter value")
        harness.check(method.isCreator(), creator, "Method has the correct creator value")
        harness.check(method.isDeleter(), deleter, "Method has the correct deleter value")
        harness.check(method.isLegacycaller(), legacycaller, "Method has the correct legacycaller value")
        harness.check(method.isStringifier(), stringifier, "Method has the correct stringifier value")
        harness.check(method.getExtendedAttribute("ChromeOnly") is not None, chromeOnly, "Method has the correct value for ChromeOnly")
        harness.check(method.isHTMLConstructor(), htmlConstructor, "Method has the correct htmlConstructor value")
        harness.check(len(method.signatures()), len(signatures), "Method has the correct number of signatures")

        sigpairs = zip(method.signatures(), signatures)
        for (gotSignature, expectedSignature) in sigpairs:
            (gotRetType, gotArgs) = gotSignature
            (expectedRetType, expectedArgs) = expectedSignature

            harness.check(str(gotRetType), expectedRetType,
                          "Method has the expected return type.")

            for i in range(0, len(gotArgs)):
                (QName, name, type, optional, variadic) = expectedArgs[i]
                checkArgument(gotArgs[i], QName, name, type, optional, variadic)

    parser.parse("""
        [Constructor]
        interface TestConstructorNoArgs {
        };

        [Constructor(DOMString name)]
        interface TestConstructorWithArgs {
        };

        [Constructor(object foo), Constructor(boolean bar)]
        interface TestConstructorOverloads {
        };
    """)
    results = parser.finish()
    harness.check(len(results), 3, "Should be three productions")
    harness.ok(isinstance(results[0], WebIDL.IDLInterface),
               "Should be an IDLInterface")
    harness.ok(isinstance(results[1], WebIDL.IDLInterface),
               "Should be an IDLInterface")
    harness.ok(isinstance(results[2], WebIDL.IDLInterface),
               "Should be an IDLInterface")

    checkMethod(results[0].ctor(), "::TestConstructorNoArgs::constructor",
                "constructor", [("TestConstructorNoArgs (Wrapper)", [])])
    checkMethod(results[1].ctor(), "::TestConstructorWithArgs::constructor",
                "constructor",
                [("TestConstructorWithArgs (Wrapper)",
                 [("::TestConstructorWithArgs::constructor::name", "name", "String", False, False)])])
    checkMethod(results[2].ctor(), "::TestConstructorOverloads::constructor",
                "constructor",
                [("TestConstructorOverloads (Wrapper)",
                 [("::TestConstructorOverloads::constructor::foo", "foo", "Object", False, False)]),
                 ("TestConstructorOverloads (Wrapper)",
                 [("::TestConstructorOverloads::constructor::bar", "bar", "Boolean", False, False)])])

    parser = parser.reset()
    parser.parse("""
        [HTMLConstructor]
        interface TestHTMLConstructor {
        };
    """)
    results = parser.finish()
    harness.check(len(results), 1, "Should be one production")
    harness.ok(isinstance(results[0], WebIDL.IDLInterface),
               "Should be an IDLInterface")

    checkMethod(results[0].ctor(), "::TestHTMLConstructor::constructor",
                "constructor", [("TestHTMLConstructor (Wrapper)", [])],
                htmlConstructor=True)

    parser = parser.reset()
    parser.parse("""
        [ChromeConstructor()]
        interface TestChromeConstructor {
        };
    """)
    results = parser.finish()
    harness.check(len(results), 1, "Should be one production")
    harness.ok(isinstance(results[0], WebIDL.IDLInterface),
               "Should be an IDLInterface")

    checkMethod(results[0].ctor(), "::TestChromeConstructor::constructor",
                "constructor", [("TestChromeConstructor (Wrapper)", [])],
                chromeOnly=True)

    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
        [Constructor(),
         ChromeConstructor(DOMString a)]
        interface TestChromeConstructor {
        };
        """)
        results = parser.finish()
    except:
        threw = True

    harness.ok(threw, "Can't have both a Constructor and a ChromeConstructor")

    # Test HTMLConstructor with argument
    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [HTMLConstructor(DOMString a)]
            interface TestHTMLConstructorWithArgs {
            };
        """)
        results = parser.finish()
    except:
        threw = True

    harness.ok(threw, "HTMLConstructor should take no argument")

    # Test HTMLConstructor on a callback interface
    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [HTMLConstructor]
            callback interface TestHTMLConstructorOnCallbackInterface {
            };
        """)
        results = parser.finish()
    except:
        threw = True

    harness.ok(threw, "HTMLConstructor can't be used on a callback interface")

    # Test HTMLConstructor and Constructor
    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [Constructor,
             HTMLConstructor]
            interface TestHTMLConstructorAndConstructor {
            };
        """)
        results = parser.finish()
    except:
        threw = True

    harness.ok(threw, "Can't have both a Constructor and a HTMLConstructor")

    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [HTMLConstructor,
             Constructor]
            interface TestHTMLConstructorAndConstructor {
            };
        """)
        results = parser.finish()
    except:
        threw = True

    harness.ok(threw, "Can't have both a HTMLConstructor and a Constructor")

    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [HTMLConstructor,
             Constructor(DOMString a)]
            interface TestHTMLConstructorAndConstructor {
            };
        """)
    except:
        threw = True

    harness.ok(threw, "Can't have both a HTMLConstructor and a Constructor")

    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [Constructor(DOMString a),
             HTMLConstructor]
            interface TestHTMLConstructorAndConstructor {
            };
        """)
    except:
        threw = True

    harness.ok(threw, "Can't have both a HTMLConstructor and a Constructor")

    # Test HTMLConstructor and ChromeConstructor
    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [ChromeConstructor,
             HTMLConstructor]
            interface TestHTMLConstructorAndChromeConstructor {
            };
        """)
        results = parser.finish()
    except:
        threw = True

    harness.ok(threw, "Can't have both a HTMLConstructor and a ChromeConstructor")

    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [HTMLConstructor,
             ChromeConstructor]
            interface TestHTMLConstructorAndChromeConstructor {
            };
        """)
        results = parser.finish()
    except:
        threw = True

    harness.ok(threw, "Can't have both a HTMLConstructor and a ChromeConstructor")

    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [ChromeConstructor(DOMString a),
             HTMLConstructor]
            interface TestHTMLConstructorAndChromeConstructor {
            };
        """)
        results = parser.finish()
    except:
        threw = True

    parser = parser.reset()
    threw = False
    try:
        parser.parse("""
            [HTMLConstructor,
             ChromeConstructor(DOMString a)]
            interface TestHTMLConstructorAndChromeConstructor {
            };
        """)
        results = parser.finish()
    except:
        threw = True

    harness.ok(threw, "Can't have both a HTMLConstructor and a ChromeConstructor")