| 1 | n/a | import unittest |
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| 2 | n/a | from ctypes import * |
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| 3 | n/a | |
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| 4 | n/a | class AnonTest(unittest.TestCase): |
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| 5 | n/a | |
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| 6 | n/a | def test_anon(self): |
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| 7 | n/a | class ANON(Union): |
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| 8 | n/a | _fields_ = [("a", c_int), |
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| 9 | n/a | ("b", c_int)] |
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| 10 | n/a | |
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| 11 | n/a | class Y(Structure): |
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| 12 | n/a | _fields_ = [("x", c_int), |
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| 13 | n/a | ("_", ANON), |
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| 14 | n/a | ("y", c_int)] |
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| 15 | n/a | _anonymous_ = ["_"] |
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| 16 | n/a | |
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| 17 | n/a | self.assertEqual(Y.a.offset, sizeof(c_int)) |
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| 18 | n/a | self.assertEqual(Y.b.offset, sizeof(c_int)) |
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| 19 | n/a | |
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| 20 | n/a | self.assertEqual(ANON.a.offset, 0) |
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| 21 | n/a | self.assertEqual(ANON.b.offset, 0) |
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| 22 | n/a | |
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| 23 | n/a | def test_anon_nonseq(self): |
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| 24 | n/a | # TypeError: _anonymous_ must be a sequence |
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| 25 | n/a | self.assertRaises(TypeError, |
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| 26 | n/a | lambda: type(Structure)("Name", |
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| 27 | n/a | (Structure,), |
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| 28 | n/a | {"_fields_": [], "_anonymous_": 42})) |
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| 29 | n/a | |
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| 30 | n/a | def test_anon_nonmember(self): |
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| 31 | n/a | # AttributeError: type object 'Name' has no attribute 'x' |
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| 32 | n/a | self.assertRaises(AttributeError, |
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| 33 | n/a | lambda: type(Structure)("Name", |
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| 34 | n/a | (Structure,), |
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| 35 | n/a | {"_fields_": [], |
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| 36 | n/a | "_anonymous_": ["x"]})) |
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| 37 | n/a | |
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| 38 | n/a | def test_nested(self): |
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| 39 | n/a | class ANON_S(Structure): |
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| 40 | n/a | _fields_ = [("a", c_int)] |
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| 41 | n/a | |
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| 42 | n/a | class ANON_U(Union): |
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| 43 | n/a | _fields_ = [("_", ANON_S), |
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| 44 | n/a | ("b", c_int)] |
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| 45 | n/a | _anonymous_ = ["_"] |
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| 46 | n/a | |
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| 47 | n/a | class Y(Structure): |
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| 48 | n/a | _fields_ = [("x", c_int), |
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| 49 | n/a | ("_", ANON_U), |
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| 50 | n/a | ("y", c_int)] |
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| 51 | n/a | _anonymous_ = ["_"] |
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| 52 | n/a | |
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| 53 | n/a | self.assertEqual(Y.x.offset, 0) |
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| 54 | n/a | self.assertEqual(Y.a.offset, sizeof(c_int)) |
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| 55 | n/a | self.assertEqual(Y.b.offset, sizeof(c_int)) |
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| 56 | n/a | self.assertEqual(Y._.offset, sizeof(c_int)) |
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| 57 | n/a | self.assertEqual(Y.y.offset, sizeof(c_int) * 2) |
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| 58 | n/a | |
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| 59 | n/a | if __name__ == "__main__": |
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| 60 | n/a | unittest.main() |
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