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import WebIDL
def WebIDLTest(parser, harness):
parser.parse(
"""
interface TestCallbackConstructor {
attribute CallbackConstructorType? constructorAttribute;
};
callback constructor CallbackConstructorType = TestCallbackConstructor (unsigned long arg);
"""
)
results = parser.finish()
harness.ok(True, "TestCallbackConstructor interface parsed without error.")
harness.check(len(results), 2, "Should be two productions.")
iface = results[0]
harness.ok(isinstance(iface, WebIDL.IDLInterface), "Should be an IDLInterface")
harness.check(
iface.identifier.QName(),
"::TestCallbackConstructor",
"Interface has the right QName",
)
harness.check(
iface.identifier.name, "TestCallbackConstructor", "Interface has the right name"
)
harness.check(len(iface.members), 1, "Expect %s members" % 1)
attr = iface.members[0]
harness.ok(isinstance(attr, WebIDL.IDLAttribute), "Should be an IDLAttribute")
harness.ok(attr.isAttr(), "Should be an attribute")
harness.ok(not attr.isMethod(), "Attr is not an method")
harness.ok(not attr.isConst(), "Attr is not a const")
harness.check(
attr.identifier.QName(),
"::TestCallbackConstructor::constructorAttribute",
"Attr has the right QName",
)
harness.check(
attr.identifier.name, "constructorAttribute", "Attr has the right name"
)
t = attr.type
harness.ok(not isinstance(t, WebIDL.IDLWrapperType), "Attr has the right type")
harness.ok(isinstance(t, WebIDL.IDLNullableType), "Attr has the right type")
harness.ok(t.isCallback(), "Attr has the right type")
callback = results[1]
harness.ok(callback.isConstructor(), "Callback is constructor")
parser.reset()
threw = False
try:
parser.parse(
"""
[LegacyTreatNonObjectAsNull]
callback constructor CallbackConstructorType = object ();
"""
)
results = parser.finish()
except WebIDL.WebIDLError:
threw = True
harness.ok(
threw, "Should throw on LegacyTreatNonObjectAsNull callback constructors"
)
parser.reset()
threw = False
try:
parser.parse(
"""
[MOZ_CAN_RUN_SCRIPT_BOUNDARY]
callback constructor CallbackConstructorType = object ();
"""
)
results = parser.finish()
except WebIDL.WebIDLError:
threw = True
harness.ok(
threw, "Should not permit MOZ_CAN_RUN_SCRIPT_BOUNDARY callback constructors"
)