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addl unit tests for PR #3970 (#3977)

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* Add test_perf_accessors (to be merged into test_pytypes).

* Python < 3.8 f-string compatibility

* Use thread_local in inc_ref_counter()

* Intentional breakage, brute-force way to quickly find out how many platforms reach the PYBIND11_HANDLE_REF_DEBUG code, with and without threads.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Remove Intentional breakage

* Drop perf test, move inc_refs tests to test_pytypes

* Fold in PR #3970 with `#ifdef`s

* Complete test coverage for all newly added code.

* Condense new unit tests via a simple local helper macro.

* Remove PYBIND11_PR3970 define. See https://github.com/pybind/pybind11/pull/3977#issuecomment-1142526417

* Move static keyword first (fixes silly oversight).

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
This commit is contained in:
Ralf W. Grosse-Kunstleve
2022-05-31 12:59:19 -07:00
committed by GitHub
parent b24c5ed204
commit 9f7b3f735a
3 changed files with 77 additions and 0 deletions
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49
tests/test_pytypes.cpp
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@@ -297,6 +297,55 @@ TEST_SUBMODULE(pytypes, m) {
return d;
});
m.def("accessor_moves", []() { // See PR #3970
py::list return_list;
#ifdef PYBIND11_HANDLE_REF_DEBUG
py::int_ py_int_0(0);
py::int_ py_int_42(42);
py::str py_str_count("count");
auto tup = py::make_tuple(0);
py::sequence seq(tup);
py::list lst;
lst.append(0);
# define PYBIND11_LOCAL_DEF(...) \
{ \
std::size_t inc_refs = py::handle::inc_ref_counter(); \
__VA_ARGS__; \
inc_refs = py::handle::inc_ref_counter() - inc_refs; \
return_list.append(inc_refs); \
}
PYBIND11_LOCAL_DEF(tup[py_int_0]) // l-value (to have a control)
PYBIND11_LOCAL_DEF(tup[py::int_(0)]) // r-value
PYBIND11_LOCAL_DEF(tup.attr(py_str_count)) // l-value
PYBIND11_LOCAL_DEF(tup.attr(py::str("count"))) // r-value
PYBIND11_LOCAL_DEF(seq[py_int_0]) // l-value
PYBIND11_LOCAL_DEF(seq[py::int_(0)]) // r-value
PYBIND11_LOCAL_DEF(seq.attr(py_str_count)) // l-value
PYBIND11_LOCAL_DEF(seq.attr(py::str("count"))) // r-value
PYBIND11_LOCAL_DEF(lst[py_int_0]) // l-value
PYBIND11_LOCAL_DEF(lst[py::int_(0)]) // r-value
PYBIND11_LOCAL_DEF(lst.attr(py_str_count)) // l-value
PYBIND11_LOCAL_DEF(lst.attr(py::str("count"))) // r-value
auto lst_acc = lst[py::int_(0)];
lst_acc = py::int_(42); // Detaches lst_acc from lst.
PYBIND11_LOCAL_DEF(lst_acc = py_int_42) // l-value
PYBIND11_LOCAL_DEF(lst_acc = py::int_(42)) // r-value
# undef PYBIND11_LOCAL_DEF
#endif
return return_list;
});
// test_constructors
m.def("default_constructors", []() {
return py::dict("bytes"_a = py::bytes(),