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13 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Ralf W. Grosse-Kunstleve
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55105fbeaf
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[smart_holder] Bug fix: std::unique_ptr deleter needs to be copied. (#4850)
* Store `std::function<void (void *)>` del_fun; in `guarded_delete`
* Specialize the simple common case.
Using a `union` is complicated: https://en.cppreference.com/w/cpp/language/union
> If members of a union are classes with user-defined constructors and destructors, to switch the active member, explicit destructor and placement new are generally needed:
Using `std::variant` increases compile-time overhead.
It is currently unclear how much these effects matter in practice: optimization left for later.
* Add one test case (more later).
* Add `const` to resolve clang-tidy error.
```
-- The CXX compiler identification is Clang 15.0.7
/usr/bin/cmake -E __run_co_compile --tidy="/usr/bin/clang-tidy;--use-color;--warnings-as-errors=*;--extra-arg-before=--driver-mode=g++" --source=/__w/pybind11/pybind11/tests/test_class_sh_inheritance.cpp -- /usr/bin/c++ -DPYBIND11_ENABLE_TYPE_CASTER_ODR_GUARD_IF_AVAILABLE -DPYBIND11_TEST_EIGEN -Dpybind11_tests_EXPORTS -I/__w/pybind11/pybind11/include -isystem /usr/include/python3.9 -isystem /__w/pybind11/pybind11/build/_deps/eigen-src -Os -DNDEBUG -fPIC -fvisibility=hidden -Wall -Wextra -Wconversion -Wcast-qual -Wdeprecated -Wundef -Wnon-virtual-dtor -flto=thin -std=c++17 -o CMakeFiles/pybind11_tests.dir/test_class_sh_inheritance.cpp.o -c /__w/pybind11/pybind11/tests/test_class_sh_inheritance.cpp
/__w/pybind11/pybind11/tests/pure_cpp/smart_holder_poc_test.cpp:264:30: error: pointer parameter 'raw_ptr' can be pointer to const [readability-non-const-parameter,-warnings-as-errors]
new int(19), [](int *raw_ptr) { delete raw_ptr; });
^
const
```
* Introduce `struct custom_deleter` to ensure the deleter is moved as desired (the lambda function only captures a reference, which can become dangling).
* Resolve helpful clang-tidy errors.
```
/usr/bin/cmake -E __run_co_compile --tidy="/usr/bin/clang-tidy;--use-color;--warnings-as-errors=*;--extra-arg-before=--driver-mode=g++" --source=/__w/pybind11/pybind11/tests/test_class.cpp -- /usr/bin/c++ -DPYBIND11_ENABLE_TYPE_CASTER_ODR_GUARD_IF_AVAILABLE -DPYBIND11_TEST_EIGEN -Dpybind11_tests_EXPORTS -I/__w/pybind11/pybind11/include -isystem /usr/include/python3.9 -isystem /__w/pybind11/pybind11/build/_deps/eigen-src -Os -DNDEBUG -fPIC -fvisibility=hidden -Wall -Wextra -Wconversion -Wcast-qual -Wdeprecated -Wundef -Wnon-virtual-dtor -flto=thin -std=c++17 -o CMakeFiles/pybind11_tests.dir/test_class.cpp.o -c /__w/pybind11/pybind11/tests/test_class.cpp
/__w/pybind11/pybind11/include/pybind11/detail/smart_holder_poc.h:114:5: error: single-argument constructors must be marked explicit to avoid unintentional implicit conversions [google-explicit-constructor,-warnings-as-errors]
custom_deleter(D &&deleter) : deleter{std::move(deleter)} {}
^
explicit
/__w/pybind11/pybind11/include/pybind11/detail/smart_holder_poc.h:120:76: error: forwarding reference passed to std::move(), which may unexpectedly cause lvalues to be moved; use std::forward() instead [bugprone-move-forwarding-reference,-warnings-as-errors]
return guarded_delete(std::function<void(void *)>(custom_deleter<T, D>(std::move(uqp_del))),
^~~~~~~~~
std::forward<D>
```
* Workaround for gcc 4.8.5, clang 3.6
* Transfer reduced test here.
Reduced from a PyCLIF use case in the wild by @wangxf123456 (internal change cl/565476030).
* Add missing include (clangd Include Cleaner)
* Change `std::move` to `std::forward` as suggested by @iwanders.
* Add missing includes (clangd Include Cleaner)
* Use new `PYBIND11_TESTS_PURE_CPP_SMART_HOLDER_POC_TEST_CPP` to exclude `smart_holder::as_unique_ptr` method from production code.
* Systematically add `PYBIND11_TESTS_PURE_CPP_SMART_HOLDER_POC_TEST_CPP` to mark code that is not used from production code. Add comment to explain.
* Very simple experiment related to https://github.com/pybind/pybind11/pull/4850#issuecomment-1789780676
Does the `PYBIND11_TESTS_PURE_CPP_SMART_HOLDER_POC_TEST_CPP` define have anything to do with it?
* Revert "Very simple experiment related to https://github.com/pybind/pybind11/pull/4850#issuecomment-1789780676"
This reverts commit
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Ralf W. Grosse-Kunstleve
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8f31c19e99 | Fix new (after upgrade) clang-tidy error, adjust .codespell-ignorelines accordingly. | ||
Xiaofei Wang
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c0cfe95b1b
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Support loading unique_ptr<Derived> as unique_ptr<Base>. (#4031)
* Support loading unique_ptr<derived> as unique_ptr<base>. * Fix incorrect test * pre commit fix * Fix clang tidy * Resolve comments * Resolve comments |
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Ralf W. Grosse-Kunstleve
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97862b126a
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Using #undef _ before "#include <catch.hpp>", as suggested by @henryiii (#3747)
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Ralf W. Grosse-Kunstleve
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b4e1ac9a94 | clang-tidy fixes related to PR #3250 | ||
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Ralf W. Grosse-Kunstleve
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e41fb99e7e | clang-tidy fixes (mostly manual) related to PR #3166 | ||
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Ralf W. Grosse-Kunstleve
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52c3f4cc30
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This was meant to be PR #3065: pure clang-format changes. NO manual changes. (#3073) | ||
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Ralf W. Grosse-Kunstleve
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2c828ff552 |
More clang-tidy fixes. These escaped before because -DDOWNLOAD_EIGEN=ON -DDOWNLOAD_CATCH=ON -DCMAKE_CXX_STANDARD=17, as used in the GitHub Actions, were missing in the interactive run.
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Ralf W. Grosse-Kunstleve
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6c922614ed
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Adding reclaim_disowned logic & miscellaneous naming and documentation improvements. (#2943)
* Using new smart_holder::reclaim_disowned in smart_holder_type_caster for unique_ptr. * Systematically renaming was_disowned to is_disowned (because disowning is now reversible: reclaim_disowned). * Systematically renaming virtual_overrider_self_life_support to trampoline_self_life_support (to reuse existing terminology instead of introducing new one). * Systematically renaming test_class_sh_with_alias to test_class_sh_trampoline_basic. * Adding a Trampolines and std::unique_ptr section to README_smart_holder.rst. * MSVC compatibility. |
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Ralf W. Grosse-Kunstleve
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469792032a
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Adding virtual_overrider_self_life_support. (#2902)
* Initial version of virtual_overrider_self_life_support (enables safely passing unique_ptr to C++). * Clang 3.6, 3.7 compatibility. * Adding missing default constructor. * Restoring test for exception for the case that virtual_overrider_self_life_support is not used. * Fixing oversight: Adding missing holder().ensure_was_not_disowned(). * Adding unit tests for new `struct smart_holder` member functions. * Moving virtual_overrider_self_life_support to separate include file, with iwyu cleanup. |
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Ralf W. Grosse-Kunstleve
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3a336a2047
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shared_ptr<bool> vptr_deleter_armed_flag_ptr (instead of unique_ptr) (#2882)
* shared_ptr<bool> vptr_deleter_armed_flag_ptr (instead of unique_ptr), to fix heap-use-after-free bug. * Fixing generated by some compilers in the pybind11 CI suite. |
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Ralf W. Grosse-Kunstleve
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01e0045547
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Enabling use of smart_holder for types with non-public destructors. (#2878)
* Enabling use of smart_holder for types with non-public destructors. * Resolving clang-tidy error (GitHub CI). |
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Ralf W. Grosse-Kunstleve
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1bafd5db5f
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Adding py::smart_holder (for smart-pointer interoperability). (#2672)
* Adding test_unique_ptr_member (for desired PyCLIF behavior). See also: https://github.com/pybind/pybind11/issues/2583 Does not build with upstream master or https://github.com/pybind/pybind11/pull/2047, but builds with https://github.com/RobotLocomotion/pybind11 and almost runs: ``` Running tests in directory "/usr/local/google/home/rwgk/forked/EricCousineau-TRI/pybind11/tests": ================================================================================= test session starts ================================================================================= platform linux -- Python 3.8.5, pytest-5.4.3, py-1.9.0, pluggy-0.13.1 rootdir: /usr/local/google/home/rwgk/forked/EricCousineau-TRI/pybind11/tests, inifile: pytest.ini collected 2 items test_unique_ptr_member.py .F [100%] ====================================================================================== FAILURES ======================================================================================= _____________________________________________________________________________ test_pointee_and_ptr_owner ______________________________________________________________________________ def test_pointee_and_ptr_owner(): obj = m.pointee() assert obj.get_int() == 213 m.ptr_owner(obj) with pytest.raises(ValueError) as exc_info: > obj.get_int() E Failed: DID NOT RAISE <class 'ValueError'> test_unique_ptr_member.py:17: Failed ============================================================================= 1 failed, 1 passed in 0.06s ============================================================================= ``` * unique_ptr or shared_ptr return * new test_variant_unique_shared with vptr_holder prototype * moving prototype code to pybind11/vptr_holder.h, adding type_caster specialization to make the bindings involving unique_ptr passing compile, but load and cast implementations are missing * disabling GitHub Actions on pull_request (for this PR) * disabling AppVeyor (for this PR) * TRIGGER_SEGSEV macro, annotations for GET_STACK (vptr::get), GET_INT_STACK (pointee) * adding test_promotion_of_disowned_to_shared * Copying tests as-is from xxx_value_ptr_xxx_holder branch. https://github.com/rwgk/pybind11/tree/xxx_value_ptr_xxx_holder Systematically exercising returning and passing unique_ptr<T>, shared_ptr<T> with unique_ptr, shared_ptr holder. Observations: test_holder_unique_ptr: make_unique_pointee OK pass_unique_pointee BUILD_FAIL (as documented) make_shared_pointee Abort free(): double free detected pass_shared_pointee RuntimeError: Unable to load a custom holder type from a default-holder instance test_holder_shared_ptr: make_unique_pointee Segmentation fault (#1138) pass_unique_pointee BUILD_FAIL (as documented) make_shared_pointee OK pass_shared_pointee OK * Copying tests as-is from xxx_value_ptr_xxx_holder branch. https://github.com/rwgk/pybind11/tree/xxx_value_ptr_xxx_holder Systematically exercising casting between shared_ptr<base>, shared_ptr<derived>. * Demonstration of Undefined Behavior in handling of shared_ptr holder. Based on https://godbolt.org/z/4fdjaW by jorgbrown@ (thanks Jorg!). * Additional demonstration of Undefined Behavior in handling of shared_ptr holder. * fixing up-down mixup in comment * Demonstration of Undefined Behavior in handling of polymorphic pointers. (This demo does NOT involve smart pointers at all, unlike the otherwise similar test_smart_ptr_private_first_base.) * minor test_private_first_base.cpp simplification (after discovering that this can be wrapped with Boost.Python, using boost::noncopyable) * pybind11 equivalent of Boost.Python test similar to reproducer under #1333 * Snapshot of WIP, TODO: shared_ptr deleter with on/off switch * Adding vptr_deleter. * Adding from/as unique_ptr<T> and unique_ptr<T, D>. * Adding from_shared_ptr. Some polishing. * New tests/core/smart_holder_poc_test.cpp, using Catch2. * Adding in vptr_deleter_guard_flag. * Improved labeling of TEST_CASEs. * Shuffling existing TEST_CASEs into systematic matrix. * Implementing all [S]uccess tests. * Implementing all [E]xception tests. * Testing of exceptions not covered by the from-as matrix. * Adding top-level comment. * Converting from methods to factory functions (no functional change). * Removing obsolete and very incomplete test (replaced by Catch2-based test). * Removing stray file. * Adding type_caster_bare_interface_demo. * Adding shared_ptr<mpty>, shared_ptr<mpty const> casters. * Adding unique_ptr<mpty>, unique_ptr<mpty const> casters. * Pure copy of `class class_` implementation in pybind11.h (master commit |