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import WebIDL
def WebIDLTest(parser, harness):
threw = False
try:
parser.parse(
"""
interface OptionalConstraints1 {
undefined foo(optional byte arg1, byte arg2);
};
"""
)
parser.finish()
except WebIDL.WebIDLError:
threw = True
harness.ok(
not threw,
"Should not have thrown on non-optional argument following "
"optional argument.",
)
parser = parser.reset()
parser.parse(
"""
interface OptionalConstraints2 {
undefined foo(optional byte arg1 = 1, optional byte arg2 = 2,
optional byte arg3, optional byte arg4 = 4,
optional byte arg5, optional byte arg6 = 9);
};
"""
)
results = parser.finish()
args = results[0].members[0].signatures()[0][1]
harness.check(len(args), 6, "Should have 6 arguments")
harness.check(args[5].defaultValue.value, 9, "Should have correct default value")
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