Merge branch 'master' into sh_merge_master

This commit is contained in:
Ralf W. Grosse-Kunstleve 2022-10-30 13:26:32 -07:00
commit 4928b03bae
28 changed files with 671 additions and 104 deletions

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@ -6,7 +6,8 @@ body:
- type: markdown
attributes:
value: |
Maintainers will only make a best effort to triage PRs. Please do your best to make the issue as easy to act on as possible, and only open if clearly a problem with pybind11 (ask first if unsure).
Please do your best to make the issue as easy to act on as possible, and only submit here if there is clearly a problem with pybind11 (ask first if unsure). **Note that a reproducer in a PR is much more likely to get immediate attention.**
- type: checkboxes
id: steps
attributes:
@ -20,6 +21,12 @@ body:
- label: Consider asking first in the [Gitter chat room](https://gitter.im/pybind/Lobby) or in a [Discussion](https:/pybind/pybind11/discussions/new).
required: false
- type: Input
id: version
attributes:
label: What version (or hash if on master) of pybind11 are you using?
required: true
- type: textarea
id: description
attributes:
@ -40,6 +47,14 @@ body:
The code should be minimal, have no external dependencies, isolate the
function(s) that cause breakage. Submit matched and complete C++ and
Python snippets that can be easily compiled and run to diagnose the
issue. If possible, make a PR with a new, failing test to give us a
starting point to work on!
issue. — Note that a reproducer in a PR is much more likely to get
immediate attention: failing tests in the pybind11 CI are the best
starting point for working out fixes.
render: text
- type: Input
id: regression
attributes:
label: Is this a regression? Put the last known working version here if it is.
description: Put the last known working version here if this is a regression.
value: Not a regression

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@ -31,7 +31,7 @@ jobs:
- '3.6'
- '3.9'
- '3.10'
- '3.11-dev'
- '3.11'
- 'pypy-3.7'
- 'pypy-3.8'
- 'pypy-3.9'
@ -103,10 +103,12 @@ jobs:
run: python -m pip install pytest-github-actions-annotate-failures
# First build - C++11 mode and inplace
# More-or-less randomly adding -DPYBIND11_SIMPLE_GIL_MANAGEMENT=ON here.
- name: Configure C++11 ${{ matrix.args }}
run: >
cmake -S . -B .
-DPYBIND11_WERROR=ON
-DPYBIND11_SIMPLE_GIL_MANAGEMENT=ON
-DDOWNLOAD_CATCH=ON
-DDOWNLOAD_EIGEN=ON
-DCMAKE_CXX_STANDARD=11
@ -120,7 +122,7 @@ jobs:
- name: C++11 tests
# TODO: Figure out how to load the DLL on Python 3.8+
if: "!(runner.os == 'Windows' && (matrix.python == 3.8 || matrix.python == 3.9 || matrix.python == '3.10' || matrix.python == '3.11-dev' || matrix.python == 'pypy-3.8'))"
if: "!(runner.os == 'Windows' && (matrix.python == 3.8 || matrix.python == 3.9 || matrix.python == '3.10' || matrix.python == '3.11' || matrix.python == 'pypy-3.8'))"
run: cmake --build . --target cpptest -j 2
- name: Interface test C++11
@ -130,10 +132,12 @@ jobs:
run: git clean -fdx
# Second build - C++17 mode and in a build directory
# More-or-less randomly adding -DPYBIND11_SIMPLE_GIL_MANAGEMENT=OFF here.
- name: Configure C++17
run: >
cmake -S . -B build2
-DPYBIND11_WERROR=ON
-DPYBIND11_SIMPLE_GIL_MANAGEMENT=OFF
-DDOWNLOAD_CATCH=ON
-DDOWNLOAD_EIGEN=ON
-DCMAKE_CXX_STANDARD=17
@ -147,7 +151,7 @@ jobs:
- name: C++ tests
# TODO: Figure out how to load the DLL on Python 3.8+
if: "!(runner.os == 'Windows' && (matrix.python == 3.8 || matrix.python == 3.9 || matrix.python == '3.10' || matrix.python == '3.11-dev' || matrix.python == 'pypy-3.8'))"
if: "!(runner.os == 'Windows' && (matrix.python == 3.8 || matrix.python == 3.9 || matrix.python == '3.10' || matrix.python == '3.11' || matrix.python == 'pypy-3.8'))"
run: cmake --build build2 --target cpptest
# Third build - C++17 mode with unstable ABI
@ -187,7 +191,7 @@ jobs:
- python-version: "3.9"
python-debug: true
valgrind: true
- python-version: "3.11-dev"
- python-version: "3.11"
python-debug: false
name: "🐍 ${{ matrix.python-version }}${{ matrix.python-debug && '-dbg' || '' }} (deadsnakes)${{ matrix.valgrind && ' • Valgrind' || '' }} • x64"
@ -392,7 +396,7 @@ jobs:
# Testing on CentOS 7 + PGI compilers, which seems to require more workarounds
centos-nvhpc7:
runs-on: ubuntu-latest
name: "🐍 3 • CentOS7 / PGI 22.3 • x64"
name: "🐍 3 • CentOS7 / PGI 22.9 • x64"
container: centos:7
steps:
@ -402,7 +406,7 @@ jobs:
run: yum update -y && yum install -y epel-release && yum install -y git python3-devel make environment-modules cmake3 yum-utils
- name: Install NVidia HPC SDK
run: yum-config-manager --add-repo https://developer.download.nvidia.com/hpc-sdk/rhel/nvhpc.repo && yum -y install nvhpc-22.3
run: yum-config-manager --add-repo https://developer.download.nvidia.com/hpc-sdk/rhel/nvhpc.repo && yum -y install nvhpc-22.9
# On CentOS 7, we have to filter a few tests (compiler internal error)
# and allow deeper template recursion (not needed on CentOS 8 with a newer
@ -412,12 +416,12 @@ jobs:
shell: bash
run: |
source /etc/profile.d/modules.sh
module load /opt/nvidia/hpc_sdk/modulefiles/nvhpc/22.3
module load /opt/nvidia/hpc_sdk/modulefiles/nvhpc/22.9
cmake3 -S . -B build -DDOWNLOAD_CATCH=ON \
-DCMAKE_CXX_STANDARD=11 \
-DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)") \
-DCMAKE_CXX_FLAGS="-Wc,--pending_instantiations=0" \
-DPYBIND11_TEST_FILTER="test_smart_ptr.cpp;test_virtual_functions.cpp"
-DPYBIND11_TEST_FILTER="test_smart_ptr.cpp"
# Building before installing Pip should produce a warning but not an error
- name: Build

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@ -10,7 +10,11 @@ jobs:
steps:
- uses: actions/labeler@main
if: github.event.pull_request.merged == true
if: >
github.event.pull_request.merged == true &&
!startsWith(github.event.pull_request.title, 'chore(deps):') &&
!startsWith(github.event.pull_request.title, 'ci(fix):') &&
!startsWith(github.event.pull_request.title, 'docs(changelog):')
with:
repo-token: ${{ secrets.GITHUB_TOKEN }}
configuration-path: .github/labeler_merged.yml

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@ -91,10 +91,16 @@ endif()
option(PYBIND11_INSTALL "Install pybind11 header files?" ${PYBIND11_MASTER_PROJECT})
option(PYBIND11_TEST "Build pybind11 test suite?" ${PYBIND11_MASTER_PROJECT})
option(PYBIND11_NOPYTHON "Disable search for Python" OFF)
option(PYBIND11_SIMPLE_GIL_MANAGEMENT
"Use simpler GIL management logic that does not support disassociation" OFF)
set(PYBIND11_INTERNALS_VERSION
""
CACHE STRING "Override the ABI version, may be used to enable the unstable ABI.")
if(PYBIND11_SIMPLE_GIL_MANAGEMENT)
add_compile_definitions(PYBIND11_SIMPLE_GIL_MANAGEMENT)
endif()
cmake_dependent_option(
USE_PYTHON_INCLUDE_DIR
"Install pybind11 headers in Python include directory instead of default installation prefix"

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@ -16,6 +16,104 @@ IN DEVELOPMENT
Changes will be summarized here periodically.
Version 2.10.1 (Oct 2?, 2022)
-----------------------------
Changes:
* Allow ``pybind11::capsule`` constructor to take null destructor pointers.
`#4221 <https://github.com/pybind/pybind11/pull/4221>`_
* ``embed.h`` was changed so that ``PYTHONPATH`` is used also with Python 3.11
(established behavior).
`#4119 <https://github.com/pybind/pybind11/pull/4119>`_
Bug fixes:
* Fix MSVC 2019 v.1924 & C++14 mode error for ``overload_cast``.
`#4188 <https://github.com/pybind/pybind11/pull/4188>`_
* Make augmented assignment operators non-const for the object-api. Behavior
was previously broken for augmented assignment operators.
`#4065 <https://github.com/pybind/pybind11/pull/4065>`_
* Add proper error checking to C++ bindings for Python list append and insert.
`#4208 <https://github.com/pybind/pybind11/pull/4208>`_
* Work-around for Nvidia's CUDA nvcc compiler in versions 11.4.0 - 11.8.0.
`#4220 <https://github.com/pybind/pybind11/pull/4220>`_
* A workaround for PyPy was added in the ``py::error_already_set``
implementation, related to PR `#1895 <https://github.com/pybind/pybind11/pull/1895>`_
released with v2.10.0.
`#4079 <https://github.com/pybind/pybind11/pull/4079>`_
* Fixed compiler errors when C++23 ``std::forward_like`` is available.
`#4136 <https://github.com/pybind/pybind11/pull/4136>`_
* Properly raise exceptions in contains methods (like when an object in unhashable).
`#4209 <https://github.com/pybind/pybind11/pull/4209>`_
* Further improve another error in exception handling.
`#4232 <https://github.com/pybind/pybind11/pull/4232>`_
* ``get_local_internals()`` was made compatible with
``finalize_interpreter()``, fixing potential freezes during interpreter
finalization.
`#4192 <https://github.com/pybind/pybind11/pull/4192>`_
Performance and style:
* Reserve space in set and STL map casters if possible. This will prevent
unnecessary rehashing / resizing by knowing the number of keys ahead of time
for Python to C++ casting. This improvement will greatly speed up the casting
of large unordered maps and sets.
`#4194 <https://github.com/pybind/pybind11/pull/4194>`_
* GIL RAII scopes are non-copyable to avoid potential bugs.
`#4183 <https://github.com/pybind/pybind11/pull/4183>`_
* Explicitly default all relevant ctors for pytypes in the ``PYBIND11_OBJECT``
macros and enforce the clang-tidy checks ``modernize-use-equals-default`` in
macros as well.
`#4017 <https://github.com/pybind/pybind11/pull/4017>`_
* Optimize iterator advancement in C++ bindings.
`#4237 <https://github.com/pybind/pybind11/pull/4237>`_
* Use the modern ``PyObject_GenericGetDict`` and ``PyObject_GenericSetDict``
for handling dynamic attribute dictionaries.
`#4106 <https://github.com/pybind/pybind11/pull/4106>`_
* Document that users should use ``PYBIND11_NAMESPACE`` instead of using ``pybind11`` when
opening namespaces. Using namespace declarations and namespace qualification
remain the same as ``pybind11``. This is done to ensure consistent symbol
visibility.
`#4098 <https://github.com/pybind/pybind11/pull/4098>`_
* Mark ``detail::forward_like`` as constexpr.
`#4147 <https://github.com/pybind/pybind11/pull/4147>`_
* Optimize unpacking_collector when processing ``arg_v`` arguments.
`#4219 <https://github.com/pybind/pybind11/pull/4219>`_
Build system improvements:
* Include a pkg-config file when installing pybind11, such as in the Python
package.
`#4077 <https://github.com/pybind/pybind11/pull/4077>`_
* Avoid stripping debug symbols when ``CMAKE_BUILD_TYPE`` is set to ``DEBUG``
instead of ``Debug``.
`#4078 <https://github.com/pybind/pybind11/pull/4078>`_
* Followup to `#3948 <https://github.com/pybind/pybind11/pull/3948>`_, fixing vcpkg again.
`#4123 <https://github.com/pybind/pybind11/pull/4123>`_
Version 2.10.0 (Jul 15, 2022)
-----------------------------

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@ -278,7 +278,7 @@ public:
return false;
}
static handle cast(T, return_value_policy /* policy */, handle /* parent */) {
return none().inc_ref();
return none().release();
}
PYBIND11_TYPE_CASTER(T, const_name("None"));
};
@ -321,7 +321,7 @@ public:
if (ptr) {
return capsule(ptr).release();
}
return none().inc_ref();
return none().release();
}
template <typename T>
@ -571,7 +571,7 @@ public:
static handle cast(const CharT *src, return_value_policy policy, handle parent) {
if (src == nullptr) {
return pybind11::none().inc_ref();
return pybind11::none().release();
}
return StringCaster::cast(StringType(src), policy, parent);
}
@ -1220,11 +1220,9 @@ enable_if_t<cast_is_temporary_value_reference<T>::value, T> cast_safe(object &&)
pybind11_fail("Internal error: cast_safe fallback invoked");
}
template <typename T>
enable_if_t<std::is_same<void, intrinsic_t<T>>::value, void> cast_safe(object &&) {}
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_same<void, intrinsic_t<T>>>::value,
T>
enable_if_t<detail::none_of<cast_is_temporary_value_reference<T>, std::is_void<T>>::value, T>
cast_safe(object &&o) {
return pybind11::cast<T>(std::move(o));
}

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@ -205,11 +205,8 @@
# endif
#endif
#if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L
# define PYBIND11_HAS_U8STRING
#endif
#include <Python.h>
// Reminder: WITH_THREAD is always defined if PY_VERSION_HEX >= 0x03070000
#if PY_VERSION_HEX < 0x03060000
# error "PYTHON < 3.6 IS UNSUPPORTED. pybind11 v2.9 was the last to support Python 2 and 3.5."
#endif
@ -233,6 +230,10 @@
# undef copysign
#endif
#if defined(PYPY_VERSION) && !defined(PYBIND11_SIMPLE_GIL_MANAGEMENT)
# define PYBIND11_SIMPLE_GIL_MANAGEMENT
#endif
#if defined(_MSC_VER)
# if defined(PYBIND11_DEBUG_MARKER)
# define _DEBUG
@ -259,6 +260,11 @@
# endif
#endif
// Must be after including <version> or one of the other headers specified by the standard
#if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L
# define PYBIND11_HAS_U8STRING
#endif
// #define PYBIND11_STR_LEGACY_PERMISSIVE
// If DEFINED, pybind11::str can hold PyUnicodeObject or PyBytesObject
// (probably surprising and never documented, but this was the

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@ -9,6 +9,12 @@
#pragma once
#include "common.h"
#if defined(WITH_THREAD) && defined(PYBIND11_SIMPLE_GIL_MANAGEMENT)
# include "../gil.h"
#endif
#include "../pytypes.h"
#include "smart_holder_sfinae_hooks_only.h"
@ -50,7 +56,7 @@ inline PyObject *make_object_base_type(PyTypeObject *metaclass);
// `Py_LIMITED_API` anyway.
# if PYBIND11_INTERNALS_VERSION > 4
# define PYBIND11_TLS_KEY_REF Py_tss_t &
# ifdef __GNUC__
# if defined(__GNUC__) && !defined(__INTEL_COMPILER)
// Clang on macOS warns due to `Py_tss_NEEDS_INIT` not specifying an initializer
// for every field.
# define PYBIND11_TLS_KEY_INIT(var) \
@ -170,10 +176,12 @@ struct internals {
PyTypeObject *default_metaclass;
PyObject *instance_base;
#if defined(WITH_THREAD)
// Unused if PYBIND11_SIMPLE_GIL_MANAGEMENT is defined:
PYBIND11_TLS_KEY_INIT(tstate)
# if PYBIND11_INTERNALS_VERSION > 4
PYBIND11_TLS_KEY_INIT(loader_life_support_tls_key)
# endif // PYBIND11_INTERNALS_VERSION > 4
// Unused if PYBIND11_SIMPLE_GIL_MANAGEMENT is defined:
PyInterpreterState *istate = nullptr;
~internals() {
# if PYBIND11_INTERNALS_VERSION > 4
@ -419,6 +427,10 @@ PYBIND11_NOINLINE internals &get_internals() {
return **internals_pp;
}
#if defined(WITH_THREAD)
# if defined(PYBIND11_SIMPLE_GIL_MANAGEMENT)
gil_scoped_acquire gil;
# else
// Ensure that the GIL is held since we will need to make Python calls.
// Cannot use py::gil_scoped_acquire here since that constructor calls get_internals.
struct gil_scoped_acquire_local {
@ -428,6 +440,8 @@ PYBIND11_NOINLINE internals &get_internals() {
~gil_scoped_acquire_local() { PyGILState_Release(state); }
const PyGILState_STATE state;
} gil;
# endif
#endif
error_scope err_scope;
PYBIND11_STR_TYPE id(PYBIND11_INTERNALS_ID);

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@ -11,7 +11,6 @@
#include "../numpy.h"
// Similar to comments & pragma block in eigen_tensor.h. PLEASE KEEP IN SYNC.
/* HINT: To suppress warnings originating from the Eigen headers, use -isystem.
See also:
https://stackoverflow.com/questions/2579576/i-dir-vs-isystem-dir

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@ -110,7 +110,7 @@ public:
template <typename Func>
static handle cast(Func &&f_, return_value_policy policy, handle /* parent */) {
if (!f_) {
return none().inc_ref();
return none().release();
}
auto result = f_.template target<function_type>();

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@ -10,7 +10,10 @@
#pragma once
#include "detail/common.h"
#include "detail/internals.h"
#if defined(WITH_THREAD) && !defined(PYBIND11_SIMPLE_GIL_MANAGEMENT)
# include "detail/internals.h"
#endif
PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE)
@ -21,7 +24,9 @@ PyThreadState *get_thread_state_unchecked();
PYBIND11_NAMESPACE_END(detail)
#if defined(WITH_THREAD) && !defined(PYPY_VERSION)
#if defined(WITH_THREAD)
# if !defined(PYBIND11_SIMPLE_GIL_MANAGEMENT)
/* The functions below essentially reproduce the PyGILState_* API using a RAII
* pattern, but there are a few important differences:
@ -62,11 +67,11 @@ public:
if (!tstate) {
tstate = PyThreadState_New(internals.istate);
# if defined(PYBIND11_DETAILED_ERROR_MESSAGES)
# if defined(PYBIND11_DETAILED_ERROR_MESSAGES)
if (!tstate) {
pybind11_fail("scoped_acquire: could not create thread state!");
}
# endif
# endif
tstate->gilstate_counter = 0;
PYBIND11_TLS_REPLACE_VALUE(internals.tstate, tstate);
} else {
@ -87,20 +92,20 @@ public:
PYBIND11_NOINLINE void dec_ref() {
--tstate->gilstate_counter;
# if defined(PYBIND11_DETAILED_ERROR_MESSAGES)
# if defined(PYBIND11_DETAILED_ERROR_MESSAGES)
if (detail::get_thread_state_unchecked() != tstate) {
pybind11_fail("scoped_acquire::dec_ref(): thread state must be current!");
}
if (tstate->gilstate_counter < 0) {
pybind11_fail("scoped_acquire::dec_ref(): reference count underflow!");
}
# endif
# endif
if (tstate->gilstate_counter == 0) {
# if defined(PYBIND11_DETAILED_ERROR_MESSAGES)
# if defined(PYBIND11_DETAILED_ERROR_MESSAGES)
if (!release) {
pybind11_fail("scoped_acquire::dec_ref(): internal error!");
}
# endif
# endif
PyThreadState_Clear(tstate);
if (active) {
PyThreadState_DeleteCurrent();
@ -178,12 +183,14 @@ private:
bool disassoc;
bool active = true;
};
#elif defined(PYPY_VERSION)
# else // PYBIND11_SIMPLE_GIL_MANAGEMENT
class gil_scoped_acquire {
PyGILState_STATE state;
public:
gil_scoped_acquire() { state = PyGILState_Ensure(); }
gil_scoped_acquire() : state{PyGILState_Ensure()} {}
gil_scoped_acquire(const gil_scoped_acquire &) = delete;
gil_scoped_acquire &operator=(const gil_scoped_acquire &) = delete;
~gil_scoped_acquire() { PyGILState_Release(state); }
@ -194,19 +201,39 @@ class gil_scoped_release {
PyThreadState *state;
public:
gil_scoped_release() { state = PyEval_SaveThread(); }
gil_scoped_release() : state{PyEval_SaveThread()} {}
gil_scoped_release(const gil_scoped_release &) = delete;
gil_scoped_release &operator=(const gil_scoped_acquire &) = delete;
~gil_scoped_release() { PyEval_RestoreThread(state); }
void disarm() {}
};
#else
# endif // PYBIND11_SIMPLE_GIL_MANAGEMENT
#else // WITH_THREAD
class gil_scoped_acquire {
public:
gil_scoped_acquire() {
// Trick to suppress `unused variable` error messages (at call sites).
(void) (this != (this + 1));
}
gil_scoped_acquire(const gil_scoped_acquire &) = delete;
gil_scoped_acquire &operator=(const gil_scoped_acquire &) = delete;
void disarm() {}
};
class gil_scoped_release {
public:
gil_scoped_release() {
// Trick to suppress `unused variable` error messages (at call sites).
(void) (this != (this + 1));
}
gil_scoped_release(const gil_scoped_release &) = delete;
gil_scoped_release &operator=(const gil_scoped_acquire &) = delete;
void disarm() {}
};
#endif
#endif // WITH_THREAD
PYBIND11_NAMESPACE_END(PYBIND11_NAMESPACE)

View File

@ -2588,7 +2588,7 @@ template <typename Access,
typename Sentinel,
typename ValueType,
typename... Extra>
iterator make_iterator_impl(Iterator &&first, Sentinel &&last, Extra &&...extra) {
iterator make_iterator_impl(Iterator first, Sentinel last, Extra &&...extra) {
using state = detail::iterator_state<Access, Policy, Iterator, Sentinel, ValueType, Extra...>;
// TODO: state captures only the types of Extra, not the values
@ -2614,7 +2614,7 @@ iterator make_iterator_impl(Iterator &&first, Sentinel &&last, Extra &&...extra)
Policy);
}
return cast(state{std::forward<Iterator>(first), std::forward<Sentinel>(last), true});
return cast(state{first, last, true});
}
PYBIND11_NAMESPACE_END(detail)
@ -2625,15 +2625,13 @@ template <return_value_policy Policy = return_value_policy::reference_internal,
typename Sentinel,
typename ValueType = typename detail::iterator_access<Iterator>::result_type,
typename... Extra>
iterator make_iterator(Iterator &&first, Sentinel &&last, Extra &&...extra) {
iterator make_iterator(Iterator first, Sentinel last, Extra &&...extra) {
return detail::make_iterator_impl<detail::iterator_access<Iterator>,
Policy,
Iterator,
Sentinel,
ValueType,
Extra...>(std::forward<Iterator>(first),
std::forward<Sentinel>(last),
std::forward<Extra>(extra)...);
Extra...>(first, last, std::forward<Extra>(extra)...);
}
/// Makes a python iterator over the keys (`.first`) of a iterator over pairs from a
@ -2643,15 +2641,13 @@ template <return_value_policy Policy = return_value_policy::reference_internal,
typename Sentinel,
typename KeyType = typename detail::iterator_key_access<Iterator>::result_type,
typename... Extra>
iterator make_key_iterator(Iterator &&first, Sentinel &&last, Extra &&...extra) {
iterator make_key_iterator(Iterator first, Sentinel last, Extra &&...extra) {
return detail::make_iterator_impl<detail::iterator_key_access<Iterator>,
Policy,
Iterator,
Sentinel,
KeyType,
Extra...>(std::forward<Iterator>(first),
std::forward<Sentinel>(last),
std::forward<Extra>(extra)...);
Extra...>(first, last, std::forward<Extra>(extra)...);
}
/// Makes a python iterator over the values (`.second`) of a iterator over pairs from a
@ -2661,15 +2657,13 @@ template <return_value_policy Policy = return_value_policy::reference_internal,
typename Sentinel,
typename ValueType = typename detail::iterator_value_access<Iterator>::result_type,
typename... Extra>
iterator make_value_iterator(Iterator &&first, Sentinel &&last, Extra &&...extra) {
iterator make_value_iterator(Iterator first, Sentinel last, Extra &&...extra) {
return detail::make_iterator_impl<detail::iterator_value_access<Iterator>,
Policy,
Iterator,
Sentinel,
ValueType,
Extra...>(std::forward<Iterator>(first),
std::forward<Sentinel>(last),
std::forward<Extra>(extra)...);
Extra...>(first, last, std::forward<Extra>(extra)...);
}
/// Makes an iterator over values of an stl container or other container supporting

View File

@ -1432,6 +1432,9 @@ public:
str(const char *c, const SzType &n)
: object(PyUnicode_FromStringAndSize(c, ssize_t_cast(n)), stolen_t{}) {
if (!m_ptr) {
if (PyErr_Occurred()) {
throw error_already_set();
}
pybind11_fail("Could not allocate string object!");
}
}
@ -1441,6 +1444,9 @@ public:
// NOLINTNEXTLINE(google-explicit-constructor)
str(const char *c = "") : object(PyUnicode_FromString(c), stolen_t{}) {
if (!m_ptr) {
if (PyErr_Occurred()) {
throw error_already_set();
}
pybind11_fail("Could not allocate string object!");
}
}
@ -1598,6 +1604,9 @@ inline str::str(const bytes &b) {
}
auto obj = reinterpret_steal<object>(PyUnicode_FromStringAndSize(buffer, length));
if (!obj) {
if (PyErr_Occurred()) {
throw error_already_set();
}
pybind11_fail("Could not allocate string object!");
}
m_ptr = obj.release().ptr();

View File

@ -311,7 +311,7 @@ struct optional_caster {
template <typename T>
static handle cast(T &&src, return_value_policy policy, handle parent) {
if (!src) {
return none().inc_ref();
return none().release();
}
if (!std::is_lvalue_reference<T>::value) {
policy = return_value_policy_override<Value>::policy(policy);

View File

@ -210,4 +210,5 @@ def pytest_report_header(config):
f" {pybind11_tests.compiler_info}"
f" {pybind11_tests.cpp_std}"
f" {pybind11_tests.PYBIND11_INTERNALS_ID}"
f" PYBIND11_SIMPLE_GIL_MANAGEMENT={pybind11_tests.PYBIND11_SIMPLE_GIL_MANAGEMENT}"
)

View File

@ -6,9 +6,15 @@
All rights reserved. Use of this source code is governed by a
BSD-style license that can be found in the LICENSE file.
*/
#if defined(PYBIND11_INTERNALS_VERSION)
# undef PYBIND11_INTERNALS_VERSION
#endif
#define PYBIND11_INTERNALS_VERSION 21814642 // Ensure this module has its own `internals` instance.
#include <pybind11/pybind11.h>
#include <cstdint>
#include <string>
#include <thread>
// This file mimics a DSO that makes pybind11 calls but does not define a
// PYBIND11_MODULE. The purpose is to test that such a DSO can create a
@ -21,8 +27,54 @@
namespace {
namespace py = pybind11;
void gil_acquire() { py::gil_scoped_acquire gil; }
std::string gil_multi_acquire_release(unsigned bits) {
if ((bits & 0x1u) != 0u) {
py::gil_scoped_acquire gil;
}
if ((bits & 0x2u) != 0u) {
py::gil_scoped_release gil;
}
if ((bits & 0x4u) != 0u) {
py::gil_scoped_acquire gil;
}
if ((bits & 0x8u) != 0u) {
py::gil_scoped_release gil;
}
return PYBIND11_INTERNALS_ID;
}
struct CustomAutoGIL {
CustomAutoGIL() : gstate(PyGILState_Ensure()) {}
~CustomAutoGIL() { PyGILState_Release(gstate); }
PyGILState_STATE gstate;
};
struct CustomAutoNoGIL {
CustomAutoNoGIL() : save(PyEval_SaveThread()) {}
~CustomAutoNoGIL() { PyEval_RestoreThread(save); }
PyThreadState *save;
};
template <typename Acquire, typename Release>
void gil_acquire_inner() {
Acquire acquire_outer;
Acquire acquire_inner;
Release release;
}
template <typename Acquire, typename Release>
void gil_acquire_nested() {
Acquire acquire_outer;
Acquire acquire_inner;
Release release;
auto thread = std::thread(&gil_acquire_inner<Acquire, Release>);
thread.join();
}
constexpr char kModuleName[] = "cross_module_gil_utils";
struct PyModuleDef moduledef = {
@ -30,6 +82,9 @@ struct PyModuleDef moduledef = {
} // namespace
#define ADD_FUNCTION(Name, ...) \
PyModule_AddObject(m, Name, PyLong_FromVoidPtr(reinterpret_cast<void *>(&__VA_ARGS__)));
extern "C" PYBIND11_EXPORT PyObject *PyInit_cross_module_gil_utils() {
PyObject *m = PyModule_Create(&moduledef);
@ -37,8 +92,16 @@ extern "C" PYBIND11_EXPORT PyObject *PyInit_cross_module_gil_utils() {
if (m != nullptr) {
static_assert(sizeof(&gil_acquire) == sizeof(void *),
"Function pointer must have the same size as void*");
PyModule_AddObject(
m, "gil_acquire_funcaddr", PyLong_FromVoidPtr(reinterpret_cast<void *>(&gil_acquire)));
ADD_FUNCTION("gil_acquire_funcaddr", gil_acquire)
ADD_FUNCTION("gil_multi_acquire_release_funcaddr", gil_multi_acquire_release)
ADD_FUNCTION("gil_acquire_inner_custom_funcaddr",
gil_acquire_inner<CustomAutoGIL, CustomAutoNoGIL>)
ADD_FUNCTION("gil_acquire_nested_custom_funcaddr",
gil_acquire_nested<CustomAutoGIL, CustomAutoNoGIL>)
ADD_FUNCTION("gil_acquire_inner_pybind11_funcaddr",
gil_acquire_inner<py::gil_scoped_acquire, py::gil_scoped_release>)
ADD_FUNCTION("gil_acquire_nested_pybind11_funcaddr",
gil_acquire_nested<py::gil_scoped_acquire, py::gil_scoped_release>)
}
return m;

View File

@ -89,6 +89,12 @@ PYBIND11_MODULE(pybind11_tests, m) {
#endif
m.attr("cpp_std") = cpp_std();
m.attr("PYBIND11_INTERNALS_ID") = PYBIND11_INTERNALS_ID;
m.attr("PYBIND11_SIMPLE_GIL_MANAGEMENT") =
#if defined(PYBIND11_SIMPLE_GIL_MANAGEMENT)
true;
#else
false;
#endif
bind_ConstructorStats(m);

View File

@ -398,6 +398,8 @@ TEST_SUBMODULE(class_, m) {
protected:
virtual int foo() const { return value; }
virtual void *void_foo() { return static_cast<void *>(&value); }
virtual void *get_self() { return static_cast<void *>(this); }
private:
int value = 42;
@ -406,6 +408,8 @@ TEST_SUBMODULE(class_, m) {
class TrampolineB : public ProtectedB {
public:
int foo() const override { PYBIND11_OVERRIDE(int, ProtectedB, foo, ); }
void *void_foo() override { PYBIND11_OVERRIDE(void *, ProtectedB, void_foo, ); }
void *get_self() override { PYBIND11_OVERRIDE(void *, ProtectedB, get_self, ); }
};
class PublicistB : public ProtectedB {
@ -415,11 +419,23 @@ TEST_SUBMODULE(class_, m) {
// (in Debug builds only, tested with icpc (ICC) 2021.1 Beta 20200827)
~PublicistB() override{}; // NOLINT(modernize-use-equals-default)
using ProtectedB::foo;
using ProtectedB::get_self;
using ProtectedB::void_foo;
};
m.def("read_foo", [](const void *original) {
const int *ptr = reinterpret_cast<const int *>(original);
return *ptr;
});
m.def("pointers_equal",
[](const void *original, const void *comparison) { return original == comparison; });
py::class_<ProtectedB, TrampolineB>(m, "ProtectedB")
.def(py::init<>())
.def("foo", &PublicistB::foo);
.def("foo", &PublicistB::foo)
.def("void_foo", &PublicistB::void_foo)
.def("get_self", &PublicistB::get_self);
// test_brace_initialization
struct BraceInitialization {

View File

@ -313,6 +313,8 @@ def test_bind_protected_functions():
b = m.ProtectedB()
assert b.foo() == 42
assert m.read_foo(b.void_foo()) == 42
assert m.pointers_equal(b.get_self(), b)
class C(m.ProtectedB):
def __init__(self):

View File

@ -9,8 +9,16 @@ try:
from pybind11_tests import eigen_tensor_avoid_stl_array as avoid
submodules += [avoid.c_style, avoid.f_style]
except ImportError:
pass
except ImportError as e:
# Ensure config, build, toolchain, etc. issues are not masked here:
raise RuntimeError(
"import pybind11_tests.eigen_tensor_avoid_stl_array FAILED, while "
"import pybind11_tests.eigen_tensor succeeded. "
"Please ensure that "
"test_eigen_tensor.cpp & "
"test_eigen_tensor_avoid_stl_array.cpp "
"are built together (or both are not built if Eigen is not available)."
) from e
tensor_ref = np.empty((3, 5, 2), dtype=np.int64)

View File

@ -293,7 +293,6 @@ TEST_CASE("Threads") {
{
py::gil_scoped_release gil_release{};
REQUIRE(has_pybind11_internals_static());
auto threads = std::vector<std::thread>();
for (auto i = 0; i < num_threads; ++i) {

View File

@ -11,6 +11,13 @@
#include "pybind11_tests.h"
#include <string>
#include <thread>
#define CROSS_MODULE(Function) \
auto cm = py::module_::import("cross_module_gil_utils"); \
auto target = reinterpret_cast<void (*)()>(PyLong_AsVoidPtr(cm.attr(Function).ptr()));
class VirtClass {
public:
virtual ~VirtClass() = default;
@ -28,6 +35,16 @@ class PyVirtClass : public VirtClass {
};
TEST_SUBMODULE(gil_scoped, m) {
m.attr("defined_THREAD_SANITIZER") =
#if defined(THREAD_SANITIZER)
true;
#else
false;
#endif
m.def("intentional_deadlock",
[]() { std::thread([]() { py::gil_scoped_acquire gil_acquired; }).join(); });
py::class_<VirtClass, PyVirtClass>(m, "VirtClass")
.def(py::init<>())
.def("virtual_func", &VirtClass::virtual_func)
@ -37,11 +54,91 @@ TEST_SUBMODULE(gil_scoped, m) {
m.def("test_callback_std_func", [](const std::function<void()> &func) { func(); });
m.def("test_callback_virtual_func", [](VirtClass &virt) { virt.virtual_func(); });
m.def("test_callback_pure_virtual_func", [](VirtClass &virt) { virt.pure_virtual_func(); });
m.def("test_cross_module_gil", []() {
auto cm = py::module_::import("cross_module_gil_utils");
auto gil_acquire = reinterpret_cast<void (*)()>(
PyLong_AsVoidPtr(cm.attr("gil_acquire_funcaddr").ptr()));
m.def("test_cross_module_gil_released", []() {
CROSS_MODULE("gil_acquire_funcaddr")
py::gil_scoped_release gil_release;
gil_acquire();
target();
});
m.def("test_cross_module_gil_acquired", []() {
CROSS_MODULE("gil_acquire_funcaddr")
py::gil_scoped_acquire gil_acquire;
target();
});
m.def("test_cross_module_gil_inner_custom_released", []() {
CROSS_MODULE("gil_acquire_inner_custom_funcaddr")
py::gil_scoped_release gil_release;
target();
});
m.def("test_cross_module_gil_inner_custom_acquired", []() {
CROSS_MODULE("gil_acquire_inner_custom_funcaddr")
py::gil_scoped_acquire gil_acquire;
target();
});
m.def("test_cross_module_gil_inner_pybind11_released", []() {
CROSS_MODULE("gil_acquire_inner_pybind11_funcaddr")
py::gil_scoped_release gil_release;
target();
});
m.def("test_cross_module_gil_inner_pybind11_acquired", []() {
CROSS_MODULE("gil_acquire_inner_pybind11_funcaddr")
py::gil_scoped_acquire gil_acquire;
target();
});
m.def("test_cross_module_gil_nested_custom_released", []() {
CROSS_MODULE("gil_acquire_nested_custom_funcaddr")
py::gil_scoped_release gil_release;
target();
});
m.def("test_cross_module_gil_nested_custom_acquired", []() {
CROSS_MODULE("gil_acquire_nested_custom_funcaddr")
py::gil_scoped_acquire gil_acquire;
target();
});
m.def("test_cross_module_gil_nested_pybind11_released", []() {
CROSS_MODULE("gil_acquire_nested_pybind11_funcaddr")
py::gil_scoped_release gil_release;
target();
});
m.def("test_cross_module_gil_nested_pybind11_acquired", []() {
CROSS_MODULE("gil_acquire_nested_pybind11_funcaddr")
py::gil_scoped_acquire gil_acquire;
target();
});
m.def("test_release_acquire", [](const py::object &obj) {
py::gil_scoped_release gil_released;
py::gil_scoped_acquire gil_acquired;
return py::str(obj);
});
m.def("test_nested_acquire", [](const py::object &obj) {
py::gil_scoped_release gil_released;
py::gil_scoped_acquire gil_acquired_outer;
py::gil_scoped_acquire gil_acquired_inner;
return py::str(obj);
});
m.def("test_multi_acquire_release_cross_module", [](unsigned bits) {
py::set internals_ids;
internals_ids.add(PYBIND11_INTERNALS_ID);
{
py::gil_scoped_release gil_released;
auto thread_f = [bits, &internals_ids]() {
py::gil_scoped_acquire gil_acquired;
auto cm = py::module_::import("cross_module_gil_utils");
auto target = reinterpret_cast<std::string (*)(unsigned)>(
PyLong_AsVoidPtr(cm.attr("gil_multi_acquire_release_funcaddr").ptr()));
std::string cm_internals_id = target(bits >> 3);
internals_ids.add(cm_internals_id);
};
if ((bits & 0x1u) != 0u) {
thread_f();
}
if ((bits & 0x2u) != 0u) {
std::thread non_python_thread(thread_f);
non_python_thread.join();
}
if ((bits & 0x4u) != 0u) {
thread_f();
}
}
return internals_ids;
});
}

View File

@ -1,45 +1,199 @@
import multiprocessing
import sys
import threading
import time
import pytest
from pybind11_tests import gil_scoped as m
class ExtendedVirtClass(m.VirtClass):
def virtual_func(self):
pass
def pure_virtual_func(self):
pass
def test_callback_py_obj():
m.test_callback_py_obj(lambda: None)
def test_callback_std_func():
m.test_callback_std_func(lambda: None)
def test_callback_virtual_func():
extended = ExtendedVirtClass()
m.test_callback_virtual_func(extended)
def test_callback_pure_virtual_func():
extended = ExtendedVirtClass()
m.test_callback_pure_virtual_func(extended)
def test_cross_module_gil_released():
"""Makes sure that the GIL can be acquired by another module from a GIL-released state."""
m.test_cross_module_gil_released() # Should not raise a SIGSEGV
def test_cross_module_gil_acquired():
"""Makes sure that the GIL can be acquired by another module from a GIL-acquired state."""
m.test_cross_module_gil_acquired() # Should not raise a SIGSEGV
def test_cross_module_gil_inner_custom_released():
"""Makes sure that the GIL can be acquired/released by another module
from a GIL-released state using custom locking logic."""
m.test_cross_module_gil_inner_custom_released()
def test_cross_module_gil_inner_custom_acquired():
"""Makes sure that the GIL can be acquired/acquired by another module
from a GIL-acquired state using custom locking logic."""
m.test_cross_module_gil_inner_custom_acquired()
def test_cross_module_gil_inner_pybind11_released():
"""Makes sure that the GIL can be acquired/released by another module
from a GIL-released state using pybind11 locking logic."""
m.test_cross_module_gil_inner_pybind11_released()
def test_cross_module_gil_inner_pybind11_acquired():
"""Makes sure that the GIL can be acquired/acquired by another module
from a GIL-acquired state using pybind11 locking logic."""
m.test_cross_module_gil_inner_pybind11_acquired()
def test_cross_module_gil_nested_custom_released():
"""Makes sure that the GIL can be nested acquired/released by another module
from a GIL-released state using custom locking logic."""
m.test_cross_module_gil_nested_custom_released()
def test_cross_module_gil_nested_custom_acquired():
"""Makes sure that the GIL can be nested acquired/acquired by another module
from a GIL-acquired state using custom locking logic."""
m.test_cross_module_gil_nested_custom_acquired()
def test_cross_module_gil_nested_pybind11_released():
"""Makes sure that the GIL can be nested acquired/released by another module
from a GIL-released state using pybind11 locking logic."""
m.test_cross_module_gil_nested_pybind11_released()
def test_cross_module_gil_nested_pybind11_acquired():
"""Makes sure that the GIL can be nested acquired/acquired by another module
from a GIL-acquired state using pybind11 locking logic."""
m.test_cross_module_gil_nested_pybind11_acquired()
def test_release_acquire():
assert m.test_release_acquire(0xAB) == "171"
def test_nested_acquire():
assert m.test_nested_acquire(0xAB) == "171"
def test_multi_acquire_release_cross_module():
for bits in range(16 * 8):
internals_ids = m.test_multi_acquire_release_cross_module(bits)
assert len(internals_ids) == 2 if bits % 8 else 1
# Intentionally putting human review in the loop here, to guard against accidents.
VARS_BEFORE_ALL_BASIC_TESTS = dict(vars()) # Make a copy of the dict (critical).
ALL_BASIC_TESTS = (
test_callback_py_obj,
test_callback_std_func,
test_callback_virtual_func,
test_callback_pure_virtual_func,
test_cross_module_gil_released,
test_cross_module_gil_acquired,
test_cross_module_gil_inner_custom_released,
test_cross_module_gil_inner_custom_acquired,
test_cross_module_gil_inner_pybind11_released,
test_cross_module_gil_inner_pybind11_acquired,
test_cross_module_gil_nested_custom_released,
test_cross_module_gil_nested_custom_acquired,
test_cross_module_gil_nested_pybind11_released,
test_cross_module_gil_nested_pybind11_acquired,
test_release_acquire,
test_nested_acquire,
test_multi_acquire_release_cross_module,
)
def test_all_basic_tests_completeness():
num_found = 0
for key, value in VARS_BEFORE_ALL_BASIC_TESTS.items():
if not key.startswith("test_"):
continue
assert value in ALL_BASIC_TESTS
num_found += 1
assert len(ALL_BASIC_TESTS) == num_found
def _intentional_deadlock():
m.intentional_deadlock()
ALL_BASIC_TESTS_PLUS_INTENTIONAL_DEADLOCK = ALL_BASIC_TESTS + (_intentional_deadlock,)
SKIP_IF_DEADLOCK = True # See PR #4216
def _run_in_process(target, *args, **kwargs):
"""Runs target in process and returns its exitcode after 10s (None if still alive)."""
if len(args) == 0:
test_fn = target
else:
test_fn = args[0]
# Do not need to wait much, 10s should be more than enough.
timeout = 0.1 if test_fn is _intentional_deadlock else 10
process = multiprocessing.Process(target=target, args=args, kwargs=kwargs)
process.daemon = True
try:
t_start = time.time()
process.start()
# Do not need to wait much, 10s should be more than enough.
process.join(timeout=10)
if timeout >= 100: # For debugging.
print(
"\nprocess.pid STARTED", process.pid, (sys.argv, target, args, kwargs)
)
print(f"COPY-PASTE-THIS: gdb {sys.argv[0]} -p {process.pid}", flush=True)
process.join(timeout=timeout)
if timeout >= 100:
print("\nprocess.pid JOINED", process.pid, flush=True)
t_delta = time.time() - t_start
if process.exitcode == 66 and m.defined_THREAD_SANITIZER: # Issue #2754
# WOULD-BE-NICE-TO-HAVE: Check that the message below is actually in the output.
# Maybe this could work:
# https://gist.github.com/alexeygrigorev/01ce847f2e721b513b42ea4a6c96905e
pytest.skip(
"ThreadSanitizer: starting new threads after multi-threaded fork is not supported."
)
elif test_fn is _intentional_deadlock:
assert process.exitcode is None
return 0
elif process.exitcode is None:
assert t_delta > 0.9 * timeout
msg = "DEADLOCK, most likely, exactly what this test is meant to detect."
if SKIP_IF_DEADLOCK:
pytest.skip(msg)
raise RuntimeError(msg)
return process.exitcode
finally:
if process.is_alive():
process.terminate()
def _python_to_cpp_to_python():
"""Calls different C++ functions that come back to Python."""
class ExtendedVirtClass(m.VirtClass):
def virtual_func(self):
pass
def pure_virtual_func(self):
pass
extended = ExtendedVirtClass()
m.test_callback_py_obj(lambda: None)
m.test_callback_std_func(lambda: None)
m.test_callback_virtual_func(extended)
m.test_callback_pure_virtual_func(extended)
def _python_to_cpp_to_python_from_threads(num_threads, parallel=False):
"""Calls different C++ functions that come back to Python, from Python threads."""
def _run_in_threads(test_fn, num_threads, parallel):
threads = []
for _ in range(num_threads):
thread = threading.Thread(target=_python_to_cpp_to_python)
thread = threading.Thread(target=test_fn)
thread.daemon = True
thread.start()
if parallel:
@ -51,43 +205,40 @@ def _python_to_cpp_to_python_from_threads(num_threads, parallel=False):
# TODO: FIXME, sometimes returns -11 (segfault) instead of 0 on macOS Python 3.9
def test_python_to_cpp_to_python_from_thread():
@pytest.mark.parametrize("test_fn", ALL_BASIC_TESTS_PLUS_INTENTIONAL_DEADLOCK)
def test_run_in_process_one_thread(test_fn):
"""Makes sure there is no GIL deadlock when running in a thread.
It runs in a separate process to be able to stop and assert if it deadlocks.
"""
assert _run_in_process(_python_to_cpp_to_python_from_threads, 1) == 0
assert _run_in_process(_run_in_threads, test_fn, num_threads=1, parallel=False) == 0
# TODO: FIXME on macOS Python 3.9
def test_python_to_cpp_to_python_from_thread_multiple_parallel():
@pytest.mark.parametrize("test_fn", ALL_BASIC_TESTS_PLUS_INTENTIONAL_DEADLOCK)
def test_run_in_process_multiple_threads_parallel(test_fn):
"""Makes sure there is no GIL deadlock when running in a thread multiple times in parallel.
It runs in a separate process to be able to stop and assert if it deadlocks.
"""
assert _run_in_process(_python_to_cpp_to_python_from_threads, 8, parallel=True) == 0
assert _run_in_process(_run_in_threads, test_fn, num_threads=8, parallel=True) == 0
# TODO: FIXME on macOS Python 3.9
def test_python_to_cpp_to_python_from_thread_multiple_sequential():
@pytest.mark.parametrize("test_fn", ALL_BASIC_TESTS_PLUS_INTENTIONAL_DEADLOCK)
def test_run_in_process_multiple_threads_sequential(test_fn):
"""Makes sure there is no GIL deadlock when running in a thread multiple times sequentially.
It runs in a separate process to be able to stop and assert if it deadlocks.
"""
assert (
_run_in_process(_python_to_cpp_to_python_from_threads, 8, parallel=False) == 0
)
assert _run_in_process(_run_in_threads, test_fn, num_threads=8, parallel=False) == 0
# TODO: FIXME on macOS Python 3.9
def test_python_to_cpp_to_python_from_process():
@pytest.mark.parametrize("test_fn", ALL_BASIC_TESTS_PLUS_INTENTIONAL_DEADLOCK)
def test_run_in_process_direct(test_fn):
"""Makes sure there is no GIL deadlock when using processes.
This test is for completion, but it was never an issue.
"""
assert _run_in_process(_python_to_cpp_to_python) == 0
def test_cross_module_gil():
"""Makes sure that the GIL can be acquired by another module from a GIL-released state."""
m.test_cross_module_gil() # Should not raise a SIGSEGV
assert _run_in_process(test_fn) == 0

View File

@ -206,7 +206,12 @@ TEST_SUBMODULE(pytypes, m) {
m.def("str_from_char_ssize_t", []() { return py::str{"red", (py::ssize_t) 3}; });
m.def("str_from_char_size_t", []() { return py::str{"blue", (py::size_t) 4}; });
m.def("str_from_string", []() { return py::str(std::string("baz")); });
m.def("str_from_std_string_input", [](const std::string &stri) { return py::str(stri); });
m.def("str_from_cstr_input", [](const char *c_str) { return py::str(c_str); });
m.def("str_from_bytes", []() { return py::str(py::bytes("boo", 3)); });
m.def("str_from_bytes_input",
[](const py::bytes &encoded_str) { return py::str(encoded_str); });
m.def("str_from_object", [](const py::object &obj) { return py::str(obj); });
m.def("repr_from_object", [](const py::object &obj) { return py::repr(obj); });
m.def("str_from_handle", [](py::handle h) { return py::str(h); });

View File

@ -244,6 +244,20 @@ def test_str(doc):
m.str_from_string_from_str(ucs_surrogates_str)
@pytest.mark.parametrize(
"func",
[
m.str_from_bytes_input,
m.str_from_cstr_input,
m.str_from_std_string_input,
],
)
def test_surrogate_pairs_unicode_error(func):
input_str = "\ud83d\ude4f".encode("utf-8", "surrogatepass")
with pytest.raises(UnicodeDecodeError):
func(input_str)
def test_bytes(doc):
assert m.bytes_from_char_ssize_t().decode() == "green"
assert m.bytes_from_char_size_t().decode() == "purple"

View File

@ -559,4 +559,23 @@ TEST_SUBMODULE(sequences_and_iterators, m) {
[]() { return py::make_iterator<py::return_value_policy::copy>(list); });
m.def("make_iterator_2",
[]() { return py::make_iterator<py::return_value_policy::automatic>(list); });
// test_iterator on c arrays
// #4100: ensure lvalue required as increment operand
class CArrayHolder {
public:
CArrayHolder(double x, double y, double z) {
values[0] = x;
values[1] = y;
values[2] = z;
};
double values[3];
};
py::class_<CArrayHolder>(m, "CArrayHolder")
.def(py::init<double, double, double>())
.def(
"__iter__",
[](const CArrayHolder &v) { return py::make_iterator(v.values, v.values + 3); },
py::keep_alive<0, 1>());
}

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@ -241,3 +241,11 @@ def test_iterator_rvp():
assert list(m.make_iterator_1()) == [1, 2, 3]
assert list(m.make_iterator_2()) == [1, 2, 3]
assert not isinstance(m.make_iterator_1(), type(m.make_iterator_2()))
def test_carray_iterator():
"""#4100: Check for proper iterator overload with C-Arrays"""
args_gt = list(float(i) for i in range(3))
arr_h = m.CArrayHolder(*args_gt)
args = list(arr_h)
assert args_gt == args

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@ -151,9 +151,13 @@ if(NOT _PYTHON_SUCCESS MATCHES 0)
return()
endif()
option(
PYBIND11_PYTHONLIBS_OVERWRITE
"Overwrite cached values read from Python library (classic search). Turn off if cross-compiling and manually setting these values."
ON)
# Can manually set values when cross-compiling
macro(_PYBIND11_GET_IF_UNDEF lst index name)
if(NOT DEFINED "${name}")
if(PYBIND11_PYTHONLIBS_OVERWRITE OR NOT DEFINED "${name}")
list(GET "${lst}" "${index}" "${name}")
endif()
endmacro()