mirror of
https://github.com/pybind/pybind11.git
synced 2024-11-22 13:15:12 +00:00
Merge branch 'master' into sh_merge_master
This commit is contained in:
commit
b739a5324b
@ -1376,13 +1376,24 @@ enable_if_t<!cast_is_temporary_value_reference<T>::value, T> cast_ref(object &&,
|
||||
// static_assert, even though if it's in dead code, so we provide a "trampoline" to pybind11::cast
|
||||
// that only does anything in cases where pybind11::cast is valid.
|
||||
template <typename T>
|
||||
enable_if_t<cast_is_temporary_value_reference<T>::value, T> cast_safe(object &&) {
|
||||
enable_if_t<cast_is_temporary_value_reference<T>::value
|
||||
&& !detail::is_same_ignoring_cvref<T, PyObject *>::value,
|
||||
T>
|
||||
cast_safe(object &&) {
|
||||
pybind11_fail("Internal error: cast_safe fallback invoked");
|
||||
}
|
||||
template <typename T>
|
||||
enable_if_t<std::is_void<T>::value, void> cast_safe(object &&) {}
|
||||
template <typename T>
|
||||
enable_if_t<detail::none_of<cast_is_temporary_value_reference<T>, std::is_void<T>>::value, T>
|
||||
enable_if_t<detail::is_same_ignoring_cvref<T, PyObject *>::value, PyObject *>
|
||||
cast_safe(object &&o) {
|
||||
return o.release().ptr();
|
||||
}
|
||||
template <typename T>
|
||||
enable_if_t<detail::none_of<cast_is_temporary_value_reference<T>,
|
||||
detail::is_same_ignoring_cvref<T, PyObject *>,
|
||||
std::is_void<T>>::value,
|
||||
T>
|
||||
cast_safe(object &&o) {
|
||||
return pybind11::cast<T>(std::move(o));
|
||||
}
|
||||
|
@ -3128,10 +3128,14 @@ function get_override(const T *this_ptr, const char *name) {
|
||||
= pybind11::get_override(static_cast<const cname *>(this), name); \
|
||||
if (override) { \
|
||||
auto o = override(__VA_ARGS__); \
|
||||
if (pybind11::detail::cast_is_temporary_value_reference<ret_type>::value) { \
|
||||
PYBIND11_WARNING_PUSH \
|
||||
PYBIND11_WARNING_DISABLE_MSVC(4127) \
|
||||
if (pybind11::detail::cast_is_temporary_value_reference<ret_type>::value \
|
||||
&& !pybind11::detail::is_same_ignoring_cvref<ret_type, PyObject *>::value) { \
|
||||
static pybind11::detail::override_caster_t<ret_type> caster; \
|
||||
return pybind11::detail::cast_ref<ret_type>(std::move(o), caster); \
|
||||
} \
|
||||
PYBIND11_WARNING_POP \
|
||||
return pybind11::detail::cast_safe<ret_type>(std::move(o)); \
|
||||
} \
|
||||
} while (false)
|
||||
|
@ -5,9 +5,10 @@
|
||||
#include "pybind11_tests.h"
|
||||
|
||||
#include <cstddef>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
|
||||
namespace {
|
||||
namespace test_type_caster_pyobject_ptr {
|
||||
|
||||
std::vector<PyObject *> make_vector_pyobject_ptr(const py::object &ValueHolder) {
|
||||
std::vector<PyObject *> vec_obj;
|
||||
@ -18,9 +19,39 @@ std::vector<PyObject *> make_vector_pyobject_ptr(const py::object &ValueHolder)
|
||||
return vec_obj;
|
||||
}
|
||||
|
||||
} // namespace
|
||||
struct WithPyObjectPtrReturn {
|
||||
#if defined(__clang_major__) && __clang_major__ < 4
|
||||
WithPyObjectPtrReturn() = default;
|
||||
WithPyObjectPtrReturn(const WithPyObjectPtrReturn &) = default;
|
||||
#endif
|
||||
virtual ~WithPyObjectPtrReturn() = default;
|
||||
virtual PyObject *return_pyobject_ptr() const = 0;
|
||||
};
|
||||
|
||||
struct WithPyObjectPtrReturnTrampoline : WithPyObjectPtrReturn {
|
||||
PyObject *return_pyobject_ptr() const override {
|
||||
PYBIND11_OVERRIDE_PURE(PyObject *, WithPyObjectPtrReturn, return_pyobject_ptr,
|
||||
/* no arguments */);
|
||||
}
|
||||
};
|
||||
|
||||
std::string call_return_pyobject_ptr(const WithPyObjectPtrReturn *base_class_ptr) {
|
||||
PyObject *returned_obj = base_class_ptr->return_pyobject_ptr();
|
||||
#if !defined(PYPY_VERSION) // It is not worth the trouble doing something special for PyPy.
|
||||
if (Py_REFCNT(returned_obj) != 1) {
|
||||
py::pybind11_fail(__FILE__ ":" PYBIND11_TOSTRING(__LINE__));
|
||||
}
|
||||
#endif
|
||||
auto ret_val = py::repr(returned_obj).cast<std::string>();
|
||||
Py_DECREF(returned_obj);
|
||||
return ret_val;
|
||||
}
|
||||
|
||||
} // namespace test_type_caster_pyobject_ptr
|
||||
|
||||
TEST_SUBMODULE(type_caster_pyobject_ptr, m) {
|
||||
using namespace test_type_caster_pyobject_ptr;
|
||||
|
||||
m.def("cast_from_pyobject_ptr", []() {
|
||||
PyObject *ptr = PyLong_FromLongLong(6758L);
|
||||
return py::cast(ptr, py::return_value_policy::take_ownership);
|
||||
@ -127,4 +158,10 @@ TEST_SUBMODULE(type_caster_pyobject_ptr, m) {
|
||||
(void) py::cast(*ptr);
|
||||
}
|
||||
#endif
|
||||
|
||||
py::class_<WithPyObjectPtrReturn, WithPyObjectPtrReturnTrampoline>(m, "WithPyObjectPtrReturn")
|
||||
.def(py::init<>())
|
||||
.def("return_pyobject_ptr", &WithPyObjectPtrReturn::return_pyobject_ptr);
|
||||
|
||||
m.def("call_return_pyobject_ptr", call_return_pyobject_ptr);
|
||||
}
|
||||
|
@ -102,3 +102,19 @@ def test_return_list_pyobject_ptr_reference():
|
||||
def test_type_caster_name_via_incompatible_function_arguments_type_error():
|
||||
with pytest.raises(TypeError, match=r"1\. \(arg0: object, arg1: int\) -> None"):
|
||||
m.pass_pyobject_ptr_and_int(ValueHolder(101), ValueHolder(202))
|
||||
|
||||
|
||||
def test_trampoline_with_pyobject_ptr_return():
|
||||
class Drvd(m.WithPyObjectPtrReturn):
|
||||
def return_pyobject_ptr(self):
|
||||
return ["11", "22", "33"]
|
||||
|
||||
# Basic health check: First make sure this works as expected.
|
||||
d = Drvd()
|
||||
assert d.return_pyobject_ptr() == ["11", "22", "33"]
|
||||
|
||||
while True:
|
||||
# This failed before PR #5156: AddressSanitizer: heap-use-after-free ... in Py_DECREF
|
||||
d_repr = m.call_return_pyobject_ptr(d)
|
||||
assert d_repr == repr(["11", "22", "33"])
|
||||
break # Comment out for manual leak checking.
|
||||
|
Loading…
Reference in New Issue
Block a user