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cast.h return_value_policy_override _clif_automatic (#4364)
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@ -1042,6 +1042,7 @@ struct return_value_policy_override<
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void>> {
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void>> {
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static return_value_policy policy(return_value_policy p) {
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static return_value_policy policy(return_value_policy p) {
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return !std::is_lvalue_reference<Return>::value && !std::is_pointer<Return>::value
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return !std::is_lvalue_reference<Return>::value && !std::is_pointer<Return>::value
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&& p != return_value_policy::_clif_automatic
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? return_value_policy::move
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? return_value_policy::move
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: p;
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: p;
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}
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}
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@ -167,6 +167,7 @@ set(PYBIND11_TEST_FILES
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test_operator_overloading
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test_operator_overloading
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test_pickling
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test_pickling
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test_pytypes
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test_pytypes
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test_return_value_policy_override
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test_sequences_and_iterators
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test_sequences_and_iterators
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test_smart_ptr
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test_smart_ptr
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test_stl
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test_stl
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82
tests/test_return_value_policy_override.cpp
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82
tests/test_return_value_policy_override.cpp
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@ -0,0 +1,82 @@
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#include "pybind11_tests.h"
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namespace test_return_value_policy_override {
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struct some_type {};
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} // namespace test_return_value_policy_override
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using test_return_value_policy_override::some_type;
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namespace pybind11 {
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namespace detail {
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const char *return_value_policy_name(return_value_policy policy) {
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switch (policy) {
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case return_value_policy::automatic:
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return "automatic";
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case return_value_policy::automatic_reference:
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return "automatic_reference";
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case return_value_policy::take_ownership:
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return "take_ownership";
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case return_value_policy::copy:
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return "copy";
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case return_value_policy::move:
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return "move";
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case return_value_policy::reference:
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return "reference";
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case return_value_policy::reference_internal:
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return "reference_internal";
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case return_value_policy::_return_as_bytes:
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return "_return_as_bytes";
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case return_value_policy::_clif_automatic:
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return "_clif_automatic";
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default:
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return "Expected to be unreachable.";
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}
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};
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template <>
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struct type_caster<some_type> : type_caster_base<some_type> {
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static handle cast(some_type &&, return_value_policy policy, handle /*parent*/) {
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return str(std::string(return_value_policy_name(policy))).release().ptr();
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}
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static handle cast(some_type *, return_value_policy policy, handle /*parent*/) {
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return str(std::string(return_value_policy_name(policy))).release().ptr();
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}
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};
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} // namespace detail
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} // namespace pybind11
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TEST_SUBMODULE(return_value_policy_override, m) {
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m.def("return_value_with_default_policy", []() { return some_type(); });
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m.def(
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"return_value_with_policy_copy",
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[]() { return some_type(); },
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py::return_value_policy::copy);
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m.def(
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"return_value_with_policy_clif_automatic",
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[]() { return some_type(); },
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py::return_value_policy::_clif_automatic);
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m.def("return_pointer_with_default_policy", []() {
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static some_type value;
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return &value;
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});
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m.def(
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"return_pointer_with_policy_move",
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[]() {
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static some_type value;
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return &value;
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},
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py::return_value_policy::move);
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m.def(
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"return_pointer_with_policy_clif_automatic",
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[]() {
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static some_type value;
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return &value;
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},
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py::return_value_policy::_clif_automatic);
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}
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13
tests/test_return_value_policy_override.py
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13
tests/test_return_value_policy_override.py
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@ -0,0 +1,13 @@
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from pybind11_tests import return_value_policy_override as m
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def test_return_value():
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assert m.return_value_with_default_policy() == "move"
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assert m.return_value_with_policy_copy() == "move"
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assert m.return_value_with_policy_clif_automatic() == "_clif_automatic"
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def test_return_pointer():
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assert m.return_pointer_with_default_policy() == "automatic"
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assert m.return_pointer_with_policy_move() == "move"
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assert m.return_pointer_with_policy_clif_automatic() == "_clif_automatic"
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