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Merge branch 'master' of https://github.com/pybind/pybind11 into skylion007/classmethod

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This commit is contained in:
Aaron Gokaslan 2022-10-11 11:44:32 -07:00
commit 511df01562
24 changed files with 328 additions and 98 deletions
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24
.codespell-ignore-lines Normal file
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@ -0,0 +1,24 @@
template <op_id id, op_type ot, typename L = undefined_t, typename R = undefined_t>
template <typename ThisT>
auto &this_ = static_cast<ThisT &>(*this);
if (load_impl<ThisT>(temp, false)) {
ssize_t nd = 0;
auto trivial = broadcast(buffers, nd, shape);
auto ndim = (size_t) nd;
int nd;
ssize_t ndim() const { return detail::array_proxy(m_ptr)->nd; }
using op = op_impl<id, ot, Base, L_type, R_type>;
template <op_id id, op_type ot, typename L, typename R>
template <detail::op_id id, detail::op_type ot, typename L, typename R, typename... Extra>
class_ &def(const detail::op_<id, ot, L, R> &op, const Extra &...extra) {
class_ &def_cast(const detail::op_<id, ot, L, R> &op, const Extra &...extra) {
@pytest.mark.parametrize("access", ["ro", "rw", "static_ro", "static_rw"])
struct IntStruct {
explicit IntStruct(int v) : value(v){};
~IntStruct() { value = -value; }
IntStruct(const IntStruct &) = default;
IntStruct &operator=(const IntStruct &) = default;
py::class_<IntStruct>(m, "IntStruct").def(py::init([](const int i) { return IntStruct(i); }));
py::implicitly_convertible<int, IntStruct>();
m.def("test", [](int expected, const IntStruct &in) {
[](int expected, const IntStruct &in) {

23
.github/workflows/ci.yml vendored
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@ -80,7 +80,7 @@ jobs:
run: brew install boost
- name: Update CMake
uses: jwlawson/actions-setup-cmake@v1.12
uses: jwlawson/actions-setup-cmake@v1.13
- name: Cache wheels
if: runner.os == 'macOS'
@ -202,7 +202,7 @@ jobs:
debug: ${{ matrix.python-debug }}
- name: Update CMake
uses: jwlawson/actions-setup-cmake@v1.12
uses: jwlawson/actions-setup-cmake@v1.13
- name: Valgrind cache
if: matrix.valgrind
@ -324,8 +324,8 @@ jobs:
# Testing NVCC; forces sources to behave like .cu files
cuda:
runs-on: ubuntu-latest
name: "🐍 3.8 • CUDA 11.2 • Ubuntu 20.04"
container: nvidia/cuda:11.2.2-devel-ubuntu20.04
name: "🐍 3.10 • CUDA 11.7 • Ubuntu 22.04"
container: nvidia/cuda:11.7.0-devel-ubuntu22.04
steps:
- uses: actions/checkout@v3
@ -465,7 +465,7 @@ jobs:
run: python3 -m pip install --upgrade pip
- name: Update CMake
uses: jwlawson/actions-setup-cmake@v1.12
uses: jwlawson/actions-setup-cmake@v1.13
- name: Configure
shell: bash
@ -737,6 +737,9 @@ jobs:
args: -DCMAKE_CXX_STANDARD=20
- python: 3.8
args: -DCMAKE_CXX_STANDARD=17
- python: 3.7
args: -DCMAKE_CXX_STANDARD=14
name: "🐍 ${{ matrix.python }} • MSVC 2019 • x86 ${{ matrix.args }}"
runs-on: windows-2019
@ -751,10 +754,10 @@ jobs:
architecture: x86
- name: Update CMake
uses: jwlawson/actions-setup-cmake@v1.12
uses: jwlawson/actions-setup-cmake@v1.13
- name: Prepare MSVC
uses: ilammy/msvc-dev-cmd@v1.10.0
uses: ilammy/msvc-dev-cmd@v1.11.0
with:
arch: x86
@ -804,10 +807,10 @@ jobs:
architecture: x86
- name: Update CMake
uses: jwlawson/actions-setup-cmake@v1.12
uses: jwlawson/actions-setup-cmake@v1.13
- name: Prepare MSVC
uses: ilammy/msvc-dev-cmd@v1.10.0
uses: ilammy/msvc-dev-cmd@v1.11.0
with:
arch: x86
@ -855,7 +858,7 @@ jobs:
python3 -m pip install -r tests/requirements.txt
- name: Update CMake
uses: jwlawson/actions-setup-cmake@v1.12
uses: jwlawson/actions-setup-cmake@v1.13
- name: Configure C++20
run: >

2
.github/workflows/configure.yml vendored
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@ -51,7 +51,7 @@ jobs:
# An action for adding a specific version of CMake:
# https://github.com/jwlawson/actions-setup-cmake
- name: Setup CMake ${{ matrix.cmake }}
uses: jwlawson/actions-setup-cmake@v1.12
uses: jwlawson/actions-setup-cmake@v1.13
with:
cmake-version: ${{ matrix.cmake }}

2
.github/workflows/upstream.yml vendored
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@ -31,7 +31,7 @@ jobs:
run: sudo apt-get install libboost-dev
- name: Update CMake
uses: jwlawson/actions-setup-cmake@v1.12
uses: jwlawson/actions-setup-cmake@v1.13
- name: Prepare env
run: |

26
.pre-commit-config.yaml
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@ -12,6 +12,12 @@
#
# See https://github.com/pre-commit/pre-commit
ci:
autoupdate_commit_msg: "chore(deps): update pre-commit hooks"
autofix_commit_msg: "style: pre-commit fixes"
autoupdate_schedule: monthly
# third-party content
exclude: ^tools/JoinPaths.cmake$
@ -35,7 +41,7 @@ repos:
# Upgrade old Python syntax
- repo: https://github.com/asottile/pyupgrade
rev: "v2.37.3"
rev: "v2.38.2"
hooks:
- id: pyupgrade
args: [--py36-plus]
@ -48,7 +54,7 @@ repos:
# Black, the code formatter, natively supports pre-commit
- repo: https://github.com/psf/black
rev: "22.6.0" # Keep in sync with blacken-docs
rev: "22.8.0" # Keep in sync with blacken-docs
hooks:
- id: black
@ -58,16 +64,16 @@ repos:
hooks:
- id: blacken-docs
additional_dependencies:
- black==22.6.0 # keep in sync with black hook
- black==22.8.0 # keep in sync with black hook
# Changes tabs to spaces
- repo: https://github.com/Lucas-C/pre-commit-hooks
rev: "v1.3.0"
rev: "v1.3.1"
hooks:
- id: remove-tabs
- repo: https://github.com/sirosen/texthooks
rev: "0.3.1"
rev: "0.4.0"
hooks:
- id: fix-ligatures
- id: fix-smartquotes
@ -110,7 +116,7 @@ repos:
# PyLint has native support - not always usable, but works for us
- repo: https://github.com/PyCQA/pylint
rev: "v2.14.5"
rev: "v2.15.3"
hooks:
- id: pylint
files: ^pybind11
@ -126,7 +132,7 @@ repos:
# Check static types with mypy
- repo: https://github.com/pre-commit/mirrors-mypy
rev: "v0.971"
rev: "v0.981"
hooks:
- id: mypy
args: []
@ -143,12 +149,14 @@ repos:
additional_dependencies: [cmake, ninja]
# Check for spelling
# Use tools/codespell_ignore_lines_from_errors.py
# to rebuild .codespell-ignore-lines
- repo: https://github.com/codespell-project/codespell
rev: "v2.1.0"
rev: "v2.2.1"
hooks:
- id: codespell
exclude: ".supp$"
args: ["-L", "nd,ot,thist"]
args: ["-x", ".codespell-ignore-lines"]
# Check for common shell mistakes
- repo: https://github.com/shellcheck-py/shellcheck-py

40
docs/advanced/misc.rst
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@ -39,15 +39,42 @@ The ``PYBIND11_MAKE_OPAQUE`` macro does *not* require the above workarounds.
Global Interpreter Lock (GIL)
=============================
When calling a C++ function from Python, the GIL is always held.
The Python C API dictates that the Global Interpreter Lock (GIL) must always
be held by the current thread to safely access Python objects. As a result,
when Python calls into C++ via pybind11 the GIL must be held, and pybind11
will never implicitly release the GIL.
.. code-block:: cpp
void my_function() {
/* GIL is held when this function is called from Python */
}
PYBIND11_MODULE(example, m) {
m.def("my_function", &my_function);
}
pybind11 will ensure that the GIL is held when it knows that it is calling
Python code. For example, if a Python callback is passed to C++ code via
``std::function``, when C++ code calls the function the built-in wrapper
will acquire the GIL before calling the Python callback. Similarly, the
``PYBIND11_OVERRIDE`` family of macros will acquire the GIL before calling
back into Python.
When writing C++ code that is called from other C++ code, if that code accesses
Python state, it must explicitly acquire and release the GIL.
The classes :class:`gil_scoped_release` and :class:`gil_scoped_acquire` can be
used to acquire and release the global interpreter lock in the body of a C++
function call. In this way, long-running C++ code can be parallelized using
multiple Python threads. Taking :ref:`overriding_virtuals` as an example, this
multiple Python threads, **but great care must be taken** when any
:class:`gil_scoped_release` appear: if there is any way that the C++ code
can access Python objects, :class:`gil_scoped_acquire` should be used to
reacquire the GIL. Taking :ref:`overriding_virtuals` as an example, this
could be realized as follows (important changes highlighted):
.. code-block:: cpp
:emphasize-lines: 8,9,31,32
:emphasize-lines: 8,30,31
class PyAnimal : public Animal {
public:
@ -56,9 +83,7 @@ could be realized as follows (important changes highlighted):
/* Trampoline (need one for each virtual function) */
std::string go(int n_times) {
/* Acquire GIL before calling Python code */
py::gil_scoped_acquire acquire;
/* PYBIND11_OVERRIDE_PURE will acquire the GIL before accessing Python state */
PYBIND11_OVERRIDE_PURE(
std::string, /* Return type */
Animal, /* Parent class */
@ -78,7 +103,8 @@ could be realized as follows (important changes highlighted):
.def(py::init<>());
m.def("call_go", [](Animal *animal) -> std::string {
/* Release GIL before calling into (potentially long-running) C++ code */
// GIL is held when called from Python code. Release GIL before
// calling into (potentially long-running) C++ code
py::gil_scoped_release release;
return call_go(animal);
});

2
include/pybind11/cast.h
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@ -1545,7 +1545,7 @@ private:
throw cast_error_unable_to_convert_call_arg(a.name, a.type);
#endif
}
m_kwargs[a.name] = a.value;
m_kwargs[a.name] = std::move(a.value);
}
void process(list & /*args_list*/, detail::kwargs_proxy kp) {

10
include/pybind11/detail/class.h
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@ -55,6 +55,9 @@ extern "C" inline int pybind11_static_set(PyObject *self, PyObject *obj, PyObjec
return PyProperty_Type.tp_descr_set(self, cls, value);
}
// Forward declaration to use in `make_static_property_type()`
inline void enable_dynamic_attributes(PyHeapTypeObject *heap_type);
/** A `static_property` is the same as a `property` but the `__get__()` and `__set__()`
methods are modified to always use the object type instead of a concrete instance.
Return value: New reference. */
@ -87,6 +90,13 @@ inline PyTypeObject *make_static_property_type() {
pybind11_fail("make_static_property_type(): failure in PyType_Ready()!");
}
# if PY_VERSION_HEX >= 0x030C0000
// PRE 3.12 FEATURE FREEZE. PLEASE REVIEW AFTER FREEZE.
// Since Python-3.12 property-derived types are required to
// have dynamic attributes (to set `__doc__`)
enable_dynamic_attributes(heap_type);
# endif
setattr((PyObject *) type, "__module__", str("pybind11_builtins"));
PYBIND11_SET_OLDPY_QUALNAME(type, name_obj);

7
include/pybind11/detail/common.h
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@ -1033,12 +1033,7 @@ PYBIND11_NAMESPACE_END(detail)
/// - regular: static_cast<Return (Class::*)(Arg0, Arg1, Arg2)>(&Class::func)
/// - sweet: overload_cast<Arg0, Arg1, Arg2>(&Class::func)
template <typename... Args>
# if (defined(_MSC_VER) && _MSC_VER < 1920) /* MSVC 2017 */ \
|| (defined(__clang__) && __clang_major__ == 5)
static constexpr detail::overload_cast_impl<Args...> overload_cast = {};
# else
static constexpr detail::overload_cast_impl<Args...> overload_cast;
# endif
static constexpr detail::overload_cast_impl<Args...> overload_cast{};
#endif
/// Const member function selector for overload_cast

11
include/pybind11/detail/internals.h
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@ -412,6 +412,8 @@ PYBIND11_NOINLINE internals &get_internals() {
// Cannot use py::gil_scoped_acquire here since that constructor calls get_internals.
struct gil_scoped_acquire_local {
gil_scoped_acquire_local() : state(PyGILState_Ensure()) {}
gil_scoped_acquire_local(const gil_scoped_acquire_local &) = delete;
gil_scoped_acquire_local &operator=(const gil_scoped_acquire_local &) = delete;
~gil_scoped_acquire_local() { PyGILState_Release(state); }
const PyGILState_STATE state;
} gil;
@ -512,8 +514,13 @@ struct local_internals {
/// Works like `get_internals`, but for things which are locally registered.
inline local_internals &get_local_internals() {
static local_internals locals;
return locals;
// Current static can be created in the interpreter finalization routine. If the later will be
// destroyed in another static variable destructor, creation of this static there will cause
// static deinitialization fiasco. In order to avoid it we avoid destruction of the
// local_internals static. One can read more about the problem and current solution here:
// https://google.github.io/styleguide/cppguide.html#Static_and_Global_Variables
static auto *locals = new local_internals();
return *locals;
}
/// Constructs a std::string with the given arguments, stores it in `internals`, and returns its

10
include/pybind11/gil.h
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@ -80,6 +80,9 @@ public:
inc_ref();
}
gil_scoped_acquire(const gil_scoped_acquire &) = delete;
gil_scoped_acquire &operator=(const gil_scoped_acquire &) = delete;
void inc_ref() { ++tstate->gilstate_counter; }
PYBIND11_NOINLINE void dec_ref() {
@ -144,6 +147,9 @@ public:
}
}
gil_scoped_release(const gil_scoped_acquire &) = delete;
gil_scoped_release &operator=(const gil_scoped_acquire &) = delete;
/// This method will disable the PyThreadState_DeleteCurrent call and the
/// GIL won't be acquired. This method should be used if the interpreter
/// could be shutting down when this is called, as thread deletion is not
@ -178,6 +184,8 @@ class gil_scoped_acquire {
public:
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); }
void disarm() {}
};
@ -187,6 +195,8 @@ class gil_scoped_release {
public:
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() {}
};

2
include/pybind11/numpy.h
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@ -1401,7 +1401,7 @@ PYBIND11_NOINLINE void register_structured_dtype(any_container<field_descriptor>
oss << '}';
auto format_str = oss.str();
// Sanity check: verify that NumPy properly parses our buffer format string
// Smoke test: verify that NumPy properly parses our buffer format string
auto &api = npy_api::get();
auto arr = array(buffer_info(nullptr, itemsize, format_str, 1));
if (!api.PyArray_EquivTypes_(dtype_ptr, arr.dtype().ptr())) {

1
include/pybind11/operators.h
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@ -84,6 +84,7 @@ struct op_impl {};
/// Operator implementation generator
template <op_id id, op_type ot, typename L, typename R>
struct op_ {
static constexpr bool op_enable_if_hook = true;
template <typename Class, typename... Extra>
void execute(Class &cl, const Extra &...extra) const {
using Base = typename Class::type;

8
include/pybind11/pybind11.h
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@ -1590,14 +1590,14 @@ public:
return *this;
}
template <detail::op_id id, detail::op_type ot, typename L, typename R, typename... Extra>
class_ &def(const detail::op_<id, ot, L, R> &op, const Extra &...extra) {
template <typename T, typename... Extra, detail::enable_if_t<T::op_enable_if_hook, int> = 0>
class_ &def(const T &op, const Extra &...extra) {
op.execute(*this, extra...);
return *this;
}
template <detail::op_id id, detail::op_type ot, typename L, typename R, typename... Extra>
class_ &def_cast(const detail::op_<id, ot, L, R> &op, const Extra &...extra) {
template <typename T, typename... Extra, detail::enable_if_t<T::op_enable_if_hook, int> = 0>
class_ &def_cast(const T &op, const Extra &...extra) {
op.execute_cast(*this, extra...);
return *this;
}

20
include/pybind11/pytypes.h
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@ -473,7 +473,7 @@ struct error_fetch_and_normalize {
+ " failed to obtain the name "
"of the normalized active exception type.");
}
#if defined(PYPY_VERSION)
#if defined(PYPY_VERSION_NUM) && PYPY_VERSION_NUM < 0x07030a00
// This behavior runs the risk of masking errors in the error handling, but avoids a
// conflict with PyPy, which relies on the normalization here to change OSError to
// FileNotFoundError (https://github.com/pybind/pybind11/issues/4075).
@ -1830,18 +1830,18 @@ public:
// guard if destructor called while err indicator is set
error_scope error_guard;
auto destructor = reinterpret_cast<void (*)(void *)>(PyCapsule_GetContext(o));
if (destructor == nullptr) {
if (PyErr_Occurred()) {
throw error_already_set();
}
pybind11_fail("Unable to get capsule context");
}
const char *name = get_name_in_error_scope(o);
void *ptr = PyCapsule_GetPointer(o, name);
if (ptr == nullptr) {
throw error_already_set();
}
if (destructor != nullptr) {
destructor(ptr);
}
});
if (!m_ptr || PyCapsule_SetContext(m_ptr, (void *) destructor) != 0) {
@ -2023,14 +2023,20 @@ public:
detail::list_iterator end() const { return {*this, PyList_GET_SIZE(m_ptr)}; }
template <typename T>
void append(T &&val) /* py-non-const */ {
PyList_Append(m_ptr, detail::object_or_cast(std::forward<T>(val)).ptr());
if (PyList_Append(m_ptr, detail::object_or_cast(std::forward<T>(val)).ptr()) != 0) {
throw error_already_set();
}
}
template <typename IdxType,
typename ValType,
detail::enable_if_t<std::is_integral<IdxType>::value, int> = 0>
void insert(const IdxType &index, ValType &&val) /* py-non-const */ {
PyList_Insert(
m_ptr, ssize_t_cast(index), detail::object_or_cast(std::forward<ValType>(val)).ptr());
if (PyList_Insert(m_ptr,
ssize_t_cast(index),
detail::object_or_cast(std::forward<ValType>(val)).ptr())
!= 0) {
throw error_already_set();
}
}
};

27
include/pybind11/stl.h
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@ -49,17 +49,31 @@ constexpr forwarded_type<T, U> forward_like(U &&u) {
return std::forward<detail::forwarded_type<T, U>>(std::forward<U>(u));
}
// Checks if a container has a STL style reserve method.
// This will only return true for a `reserve()` with a `void` return.
template <typename C>
using has_reserve_method = std::is_same<decltype(std::declval<C>().reserve(0)), void>;
template <typename Type, typename Key>
struct set_caster {
using type = Type;
using key_conv = make_caster<Key>;
private:
template <typename T = Type, enable_if_t<has_reserve_method<T>::value, int> = 0>
void reserve_maybe(const anyset &s, Type *) {
value.reserve(s.size());
}
void reserve_maybe(const anyset &, void *) {}
public:
bool load(handle src, bool convert) {
if (!isinstance<anyset>(src)) {
return false;
}
auto s = reinterpret_borrow<anyset>(src);
value.clear();
reserve_maybe(s, &value);
for (auto entry : s) {
key_conv conv;
if (!conv.load(entry, convert)) {
@ -94,12 +108,21 @@ struct map_caster {
using key_conv = make_caster<Key>;
using value_conv = make_caster<Value>;
private:
template <typename T = Type, enable_if_t<has_reserve_method<T>::value, int> = 0>
void reserve_maybe(const dict &d, Type *) {
value.reserve(d.size());
}
void reserve_maybe(const dict &, void *) {}
public:
bool load(handle src, bool convert) {
if (!isinstance<dict>(src)) {
return false;
}
auto d = reinterpret_borrow<dict>(src);
value.clear();
reserve_maybe(d, &value);
for (auto it : d) {
key_conv kconv;
value_conv vconv;
@ -160,9 +183,7 @@ struct list_caster {
}
private:
template <
typename T = Type,
enable_if_t<std::is_same<decltype(std::declval<T>().reserve(0)), void>::value, int> = 0>
template <typename T = Type, enable_if_t<has_reserve_method<T>::value, int> = 0>
void reserve_maybe(const sequence &s, Type *) {
value.reserve(s.size());
}

2
tests/constructor_stats.h
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@ -115,7 +115,7 @@ public:
#if defined(PYPY_VERSION)
PyObject *globals = PyEval_GetGlobals();
PyObject *result = PyRun_String("import gc\n"
"for i in range(2):"
"for i in range(2):\n"
" gc.collect()\n",
Py_file_input,
globals,

22
tests/test_class.cpp
View File

@ -36,6 +36,26 @@ struct NoBraceInitialization {
std::vector<int> vec;
};
namespace test_class {
namespace pr4220_tripped_over_this { // PR #4227
template <int>
struct SoEmpty {};
template <typename T>
std::string get_msg(const T &) {
return "This is really only meant to exercise successful compilation.";
}
using Empty0 = SoEmpty<0x0>;
void bind_empty0(py::module_ &m) {
py::class_<Empty0>(m, "Empty0").def(py::init<>()).def("get_msg", get_msg<Empty0>);
}
} // namespace pr4220_tripped_over_this
} // namespace test_class
TEST_SUBMODULE(class_, m) {
// test_instance
struct NoConstructor {
@ -525,6 +545,8 @@ TEST_SUBMODULE(class_, m) {
py::class_<OtherDuplicateNested>(gt, "OtherDuplicateNested");
py::class_<OtherDuplicateNested>(gt, "YetAnotherDuplicateNested");
});
test_class::pr4220_tripped_over_this::bind_empty0(m);
}
template <int N>

7
tests/test_class.py
View File

@ -476,3 +476,10 @@ def test_register_duplicate_class():
m.register_duplicate_nested_class_type(ClassScope)
expected = 'generic_type: type "YetAnotherDuplicateNested" is already registered!'
assert str(exc_info.value) == expected
def test_pr4220_tripped_over_this():
assert (
m.Empty0().get_msg()
== "This is really only meant to exercise successful compilation."
)

33
tests/test_eigen.cpp
View File

@ -197,11 +197,40 @@ TEST_SUBMODULE(eigen, m) {
// Return a block of a matrix (gives non-standard strides)
m.def("block",
[](const Eigen::Ref<const Eigen::MatrixXd> &x,
[m](const py::object &x_obj,
int start_row,
int start_col,
int block_rows,
int block_cols) { return x.block(start_row, start_col, block_rows, block_cols); });
int block_cols) {
return m.attr("_block")(x_obj, x_obj, start_row, start_col, block_rows, block_cols);
});
m.def(
"_block",
[](const py::object &x_obj,
const Eigen::Ref<const Eigen::MatrixXd> &x,
int start_row,
int start_col,
int block_rows,
int block_cols) {
// See PR #4217 for background. This test is a bit over the top, but might be useful
// as a concrete example to point to when explaining the dangling reference trap.
auto i0 = py::make_tuple(0, 0);
auto x0_orig = x_obj[*i0].cast<double>();
if (x(0, 0) != x0_orig) {
throw std::runtime_error(
"Something in the type_caster for Eigen::Ref is terribly wrong.");
}
double x0_mod = x0_orig + 1;
x_obj[*i0] = x0_mod;
auto copy_detected = (x(0, 0) != x0_mod);
x_obj[*i0] = x0_orig;
if (copy_detected) {
throw std::runtime_error("type_caster for Eigen::Ref made a copy.");
}
return x.block(start_row, start_col, block_rows, block_cols);
},
py::keep_alive<0, 1>());
// test_eigen_return_references, test_eigen_keepalive
// return value referencing/copying tests:

83
tests/test_eigen.py
View File

@ -217,15 +217,24 @@ def test_negative_stride_from_python(msg):
)
def test_block_runtime_error_type_caster_eigen_ref_made_a_copy():
with pytest.raises(RuntimeError) as excinfo:
m.block(ref, 0, 0, 0, 0)
assert str(excinfo.value) == "type_caster for Eigen::Ref made a copy."
def test_nonunit_stride_to_python():
assert np.all(m.diagonal(ref) == ref.diagonal())
assert np.all(m.diagonal_1(ref) == ref.diagonal(1))
for i in range(-5, 7):
assert np.all(m.diagonal_n(ref, i) == ref.diagonal(i)), f"m.diagonal_n({i})"
assert np.all(m.block(ref, 2, 1, 3, 3) == ref[2:5, 1:4])
assert np.all(m.block(ref, 1, 4, 4, 2) == ref[1:, 4:])
assert np.all(m.block(ref, 1, 4, 3, 2) == ref[1:4, 4:])
# Must be order="F", otherwise the type_caster will make a copy and
# m.block() will return a dangling reference (heap-use-after-free).
rof = np.asarray(ref, order="F")
assert np.all(m.block(rof, 2, 1, 3, 3) == rof[2:5, 1:4])
assert np.all(m.block(rof, 1, 4, 4, 2) == rof[1:, 4:])
assert np.all(m.block(rof, 1, 4, 3, 2) == rof[1:4, 4:])
def test_eigen_ref_to_python():
@ -251,14 +260,14 @@ def array_copy_but_one(a, r, c, v):
def test_eigen_return_references():
"""Tests various ways of returning references and non-referencing copies"""
master = np.ones((10, 10))
primary = np.ones((10, 10))
a = m.ReturnTester()
a_get1 = a.get()
assert not a_get1.flags.owndata and a_get1.flags.writeable
assign_both(a_get1, master, 3, 3, 5)
assign_both(a_get1, primary, 3, 3, 5)
a_get2 = a.get_ptr()
assert not a_get2.flags.owndata and a_get2.flags.writeable
assign_both(a_get1, master, 2, 3, 6)
assign_both(a_get1, primary, 2, 3, 6)
a_view1 = a.view()
assert not a_view1.flags.owndata and not a_view1.flags.writeable
@ -271,25 +280,25 @@ def test_eigen_return_references():
a_copy1 = a.copy_get()
assert a_copy1.flags.owndata and a_copy1.flags.writeable
np.testing.assert_array_equal(a_copy1, master)
np.testing.assert_array_equal(a_copy1, primary)
a_copy1[7, 7] = -44 # Shouldn't affect anything else
c1want = array_copy_but_one(master, 7, 7, -44)
c1want = array_copy_but_one(primary, 7, 7, -44)
a_copy2 = a.copy_view()
assert a_copy2.flags.owndata and a_copy2.flags.writeable
np.testing.assert_array_equal(a_copy2, master)
np.testing.assert_array_equal(a_copy2, primary)
a_copy2[4, 4] = -22 # Shouldn't affect anything else
c2want = array_copy_but_one(master, 4, 4, -22)
c2want = array_copy_but_one(primary, 4, 4, -22)
a_ref1 = a.ref()
assert not a_ref1.flags.owndata and a_ref1.flags.writeable
assign_both(a_ref1, master, 1, 1, 15)
assign_both(a_ref1, primary, 1, 1, 15)
a_ref2 = a.ref_const()
assert not a_ref2.flags.owndata and not a_ref2.flags.writeable
with pytest.raises(ValueError):
a_ref2[5, 5] = 33
a_ref3 = a.ref_safe()
assert not a_ref3.flags.owndata and a_ref3.flags.writeable
assign_both(a_ref3, master, 0, 7, 99)
assign_both(a_ref3, primary, 0, 7, 99)
a_ref4 = a.ref_const_safe()
assert not a_ref4.flags.owndata and not a_ref4.flags.writeable
with pytest.raises(ValueError):
@ -297,23 +306,23 @@ def test_eigen_return_references():
a_copy3 = a.copy_ref()
assert a_copy3.flags.owndata and a_copy3.flags.writeable
np.testing.assert_array_equal(a_copy3, master)
np.testing.assert_array_equal(a_copy3, primary)
a_copy3[8, 1] = 11
c3want = array_copy_but_one(master, 8, 1, 11)
c3want = array_copy_but_one(primary, 8, 1, 11)
a_copy4 = a.copy_ref_const()
assert a_copy4.flags.owndata and a_copy4.flags.writeable
np.testing.assert_array_equal(a_copy4, master)
np.testing.assert_array_equal(a_copy4, primary)
a_copy4[8, 4] = 88
c4want = array_copy_but_one(master, 8, 4, 88)
c4want = array_copy_but_one(primary, 8, 4, 88)
a_block1 = a.block(3, 3, 2, 2)
assert not a_block1.flags.owndata and a_block1.flags.writeable
a_block1[0, 0] = 55
master[3, 3] = 55
primary[3, 3] = 55
a_block2 = a.block_safe(2, 2, 3, 2)
assert not a_block2.flags.owndata and a_block2.flags.writeable
a_block2[2, 1] = -123
master[4, 3] = -123
primary[4, 3] = -123
a_block3 = a.block_const(6, 7, 4, 3)
assert not a_block3.flags.owndata and not a_block3.flags.writeable
with pytest.raises(ValueError):
@ -321,18 +330,18 @@ def test_eigen_return_references():
a_copy5 = a.copy_block(2, 2, 2, 3)
assert a_copy5.flags.owndata and a_copy5.flags.writeable
np.testing.assert_array_equal(a_copy5, master[2:4, 2:5])
np.testing.assert_array_equal(a_copy5, primary[2:4, 2:5])
a_copy5[1, 1] = 777
c5want = array_copy_but_one(master[2:4, 2:5], 1, 1, 777)
c5want = array_copy_but_one(primary[2:4, 2:5], 1, 1, 777)
a_corn1 = a.corners()
assert not a_corn1.flags.owndata and a_corn1.flags.writeable
a_corn1 *= 50
a_corn1[1, 1] = 999
master[0, 0] = 50
master[0, 9] = 50
master[9, 0] = 50
master[9, 9] = 999
primary[0, 0] = 50
primary[0, 9] = 50
primary[9, 0] = 50
primary[9, 9] = 999
a_corn2 = a.corners_const()
assert not a_corn2.flags.owndata and not a_corn2.flags.writeable
with pytest.raises(ValueError):
@ -340,22 +349,22 @@ def test_eigen_return_references():
# All of the changes made all the way along should be visible everywhere
# now (except for the copies, of course)
np.testing.assert_array_equal(a_get1, master)
np.testing.assert_array_equal(a_get2, master)
np.testing.assert_array_equal(a_view1, master)
np.testing.assert_array_equal(a_view2, master)
np.testing.assert_array_equal(a_ref1, master)
np.testing.assert_array_equal(a_ref2, master)
np.testing.assert_array_equal(a_ref3, master)
np.testing.assert_array_equal(a_ref4, master)
np.testing.assert_array_equal(a_block1, master[3:5, 3:5])
np.testing.assert_array_equal(a_block2, master[2:5, 2:4])
np.testing.assert_array_equal(a_block3, master[6:10, 7:10])
np.testing.assert_array_equal(a_get1, primary)
np.testing.assert_array_equal(a_get2, primary)
np.testing.assert_array_equal(a_view1, primary)
np.testing.assert_array_equal(a_view2, primary)
np.testing.assert_array_equal(a_ref1, primary)
np.testing.assert_array_equal(a_ref2, primary)
np.testing.assert_array_equal(a_ref3, primary)
np.testing.assert_array_equal(a_ref4, primary)
np.testing.assert_array_equal(a_block1, primary[3:5, 3:5])
np.testing.assert_array_equal(a_block2, primary[2:5, 2:4])
np.testing.assert_array_equal(a_block3, primary[6:10, 7:10])
np.testing.assert_array_equal(
a_corn1, master[0 :: master.shape[0] - 1, 0 :: master.shape[1] - 1]
a_corn1, primary[0 :: primary.shape[0] - 1, 0 :: primary.shape[1] - 1]
)
np.testing.assert_array_equal(
a_corn2, master[0 :: master.shape[0] - 1, 0 :: master.shape[1] - 1]
a_corn2, primary[0 :: primary.shape[0] - 1, 0 :: primary.shape[1] - 1]
)
np.testing.assert_array_equal(a_copy1, c1want)

6
tests/test_pytypes.cpp
View File

@ -289,6 +289,12 @@ TEST_SUBMODULE(pytypes, m) {
return capsule;
});
m.def("return_capsule_with_explicit_nullptr_dtor", []() {
py::print("creating capsule with explicit nullptr dtor");
return py::capsule(reinterpret_cast<void *>(1234),
static_cast<void (*)(void *)>(nullptr)); // PR #4221
});
// test_accessors
m.def("accessor_api", [](const py::object &o) {
auto d = py::dict();

11
tests/test_pytypes.py
View File

@ -299,6 +299,17 @@ def test_capsule(capture):
"""
)
with capture:
a = m.return_capsule_with_explicit_nullptr_dtor()
del a
pytest.gc_collect()
assert (
capture.unordered
== """
creating capsule with explicit nullptr dtor
"""
)
def test_accessors():
class SubTestObject:

35
tools/codespell_ignore_lines_from_errors.py Normal file
View File

@ -0,0 +1,35 @@
"""Simple script for rebuilding .codespell-ignore-lines
Usage:
cat < /dev/null > .codespell-ignore-lines
pre-commit run --all-files codespell >& /tmp/codespell_errors.txt
python3 tools/codespell_ignore_lines_from_errors.py /tmp/codespell_errors.txt > .codespell-ignore-lines
git diff to review changes, then commit, push.
"""
import sys
from typing import List
def run(args: List[str]) -> None:
assert len(args) == 1, "codespell_errors.txt"
cache = {}
done = set()
for line in sorted(open(args[0]).read().splitlines()):
i = line.find(" ==> ")
if i > 0:
flds = line[:i].split(":")
if len(flds) >= 2:
filename, line_num = flds[:2]
if filename not in cache:
cache[filename] = open(filename).read().splitlines()
supp = cache[filename][int(line_num) - 1]
if supp not in done:
print(supp)
done.add(supp)
if __name__ == "__main__":
run(args=sys.argv[1:])