Base implementation of PEP 696 #2
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Objects/genericaliasobject.c
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| bool does_not_contain = tuple_index(parameters, nargs, t) == -1; | ||
| if (does_not_contain) { | ||
| if (_PyObject_LookupAttr(t, &_Py_ID(__default__), &default_) < 0) { | ||
| Py_DECREF(default_); |
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Isn't default_ uninitialized here? I think we need to DECREF it in the next branch instead.
Objects/genericaliasobject.c
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| bool does_not_contain = tuple_index(parameters, nargs, t2) == -1; | ||
| if (does_not_contain) { | ||
| if (_PyObject_LookupAttr(t2, &_Py_ID(__default__), &default_) < 0) { | ||
| Py_DECREF(default_); |
| T = typing.TypeVar("T") | ||
| U = typing.TypeVar("U", default=int) | ||
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| self.assertEqual((list[U] | list[T]).__parameters__, (U, T)) |
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Won't this raise TypeError as the next test asserts?
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Co-authored-by: Marc Mueller [email protected]