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c557f9a3ad
* Insert type_caster_odr_guard<> (an empty struct to start with). * Add odr_guard_registry() used in type_caster_odr_guard() default constructor. * Add minimal_real_caster (from PR #3862) to test_async, test_buffers * VERY MESSY SNAPSHOT of WIP, this was the starting point for cl/454658864, which has more changes on top. * Restore original test_async, test_buffers from current smart_holder HEAD * Copy from cl/454991845 snapshot Jun 14, 5:08 PM * Cleanup of tests. Systematically insert `if (make_caster<T>::translation_unit_local) {` * Small simplification of odr_guard_impl() * WIP * Add PYBIND11_SOURCE_FILE_LINE macro. * Replace PYBIND11_TYPE_CASTER_UNIQUE_IDENTIFIER with PYBIND11_TYPE_CASTER_SOURCE_FILE_LINE, baked into PYBIND11_TYPE_CASTER macro. * Add more PYBIND11_DETAIL_TYPE_CASTER_ACCESS_TRANSLATION_UNIT_LOCAL; resolves "unused" warning when compiling test_custom_type_casters.cpp * load_type fixes & follow-on cleanup * Strip ./ from source_file_line * Add new tests to CMakeLists.txt, disable PYBIND11_WERROR * Replace C++17 syntax. Compiles with Debian clang 13 C++11 mode, but fails to link. Trying GitHub Actions anyway to see if there are any platforms that support https://en.cppreference.com/w/cpp/language/tu_local before C++20. Note that Debian clang 13 C++17 works locally. * Show C++ version along with ODR VIOLATION DETECTED message. * Add source_file_line_basename() * Introduce PYBIND11_TYPE_CASTER_ODR_GUARD_ON (but not set automatically). * Minor cleanup. * Set PYBIND11_TYPE_CASTER_ODR_GUARD_ON automatically. * Resolve clang-tidy error. * Compatibility with old compilers. * Fix off-by-one in source_file_line_basename() * Report PYBIND11_INTERNALS_ID & C++ Version from pytest_configure() * Restore use of PYBIND11_WERROR * Move cpp_version_in_use() from cast.h to pybind11_tests.cpp * define PYBIND11_DETAIL_ODR_GUARD_IMPL_THROW_DISABLED true in test_odr_guard_1,2.cpp * IWYU cleanup of detail/type_caster_odr_guard.h * Replace `throw err;` to resolve clang-tidy error. * Add new header filename to CMakeLists.txt, test_files.py * Experiment: Try any C++17 compiler. * Fix ifdef for pragma GCC diagnostic. * type_caster_odr_guard_impl() cleanup * Move type_caster_odr_guard to type_caster_odr_guard.h * Rename test_odr_guard* to test_type_caster_odr_guard* * Remove comments that are (now) more distracting than helpful. * Mark tu_local_no_data_always_false operator bool as explicit (clang-tidy). See also: https://stackoverflow.com/questions/39995573/when-can-i-use-explicit-operator-bool-without-a-cast * New PYBIND11_TYPE_CASTER_ODR_GUARD_STRICT option (current on by default). * Add test_type_caster_odr_registry_values(), test_type_caster_odr_violation_detected_counter() * Report UNEXPECTED: test_type_caster_odr_guard_2.cpp prevailed (but do not fail). * Apply clang-tidy suggestion. * Attempt to handle valgrind behavior. * Another attempt to handle valgrind behavior. * Yet another attempt to handle valgrind behavior. * Trying a new direction: show compiler info & std for UNEXPECTED: type_caster_odr_violation_detected_count() == 0 * compiler_info MSVC fix. num_violations == 0 condition. * assert pybind11_tests.compiler_info is not None * Introduce `make_caster_intrinsic<T>`, to be able to undo the 2 changes from `load_type` to `load_type<T>`. This is to avoid breaking 2 `pybind11::detail::load_type()` calls found in the wild (Google global testing). One of the breakages in the wild was:0f0f600767/python/tensorstore/subscript_method.h (L61)* Add test for stl.h / stl_bind.h mix. Manually verified that the ODR guard detects the ODR violation: ``` C++ Info: Debian Clang 13.0.1 C++17 __pybind11_internals_v4_clang_libstdcpp_cxxabi1002_sh_def__ =========================================================== test session starts ============================================================ platform linux -- Python 3.9.12, pytest-6.2.3, py-1.10.0, pluggy-0.13.1 -- /usr/bin/python3 ... ================================================================= FAILURES ================================================================= _____________________________________________ test_type_caster_odr_violation_detected_counter ______________________________________________ def test_type_caster_odr_violation_detected_counter(): ... else: > assert num_violations == 1 E assert 2 == 1 E +2 E -1 num_violations = 2 test_type_caster_odr_guard_1.py:51: AssertionError ========================================================= short test summary info ========================================================== FAILED test_type_caster_odr_guard_1.py::test_type_caster_odr_violation_detected_counter - assert 2 == 1 ======================================================= 1 failed, 5 passed in 0.08s ======================================================== ``` * Eliminate need for `PYBIND11_DETAIL_TYPE_CASTER_ACCESS_TRANSLATION_UNIT_LOCAL` macro. Copying code first developed by @amauryfa. I tried this at an earlier stage, but by itself this was insufficient. In the meantime I added in the TU-local mechanisms: trying again. Passes local testing: ``` DISABLED std::system_error: ODR VIOLATION DETECTED: pybind11::detail::type_caster<mrc_ns::type_mrc>: SourceLocation1="/usr/local/google/home/rwgk/forked/pybind11/tests/test_type_caster_odr_guard_1.cpp:18", SourceLocation2="/usr/local/google/home/rwgk/forked/pybind11/tests/test_type_caster_odr_guard_2.cpp:19" C++ Info: Debian Clang 13.0.1 C++17 __pybind11_internals_v4_clang_libstdcpp_cxxabi1002_sh_def__ =========================================================== test session starts ============================================================ platform linux -- Python 3.9.12, pytest-6.2.3, py-1.10.0, pluggy-0.13.1 -- /usr/bin/python3 cachedir: .pytest_cache rootdir: /usr/local/google/home/rwgk/forked/pybind11/tests, configfile: pytest.ini collected 6 items test_type_caster_odr_guard_1.py::test_type_mrc_to_python PASSED test_type_caster_odr_guard_1.py::test_type_mrc_from_python PASSED test_type_caster_odr_guard_1.py::test_type_caster_odr_registry_values PASSED test_type_caster_odr_guard_1.py::test_type_caster_odr_violation_detected_counter PASSED test_type_caster_odr_guard_2.py::test_type_mrc_to_python PASSED test_type_caster_odr_guard_2.py::test_type_mrc_from_python PASSED ============================================================ 6 passed in 0.01s ============================================================= ``` * tu_local_descr with src_loc experiment * clang-tidy suggested fixes * Use source_file_line_from_sloc in type_caster_odr_guard_registry * Disable type_caster ODR guard for __INTEL_COMPILER (see comment). Also turn off printf. * Add missing include (discovered via google-internal testing). * Work `scr_loc` into `descr` * Use `TypeCasterType::name.sloc` instead of `source_file_line.sloc` Manual re-verification: ``` +++ b/tests/test_type_caster_odr_guard_2.cpp - // m.def("pass_vector_type_mrc", mrc_ns::pass_vector_type_mrc); + m.def("pass_vector_type_mrc", mrc_ns::pass_vector_type_mrc); ``` ``` > assert num_violations == 1 E assert 2 == 1 num_violations = 2 test_type_caster_odr_guard_1.py:51: AssertionError ``` * Fix small oversight (src_loc::here() -> src_loc{nullptr, 0}). * Remove PYBIND11_DETAIL_TYPE_CASTER_ACCESS_TRANSLATION_UNIT_LOCAL macro completely. * Remove PYBIND11_TYPE_CASTER_SOURCE_FILE_LINE macro completely. Some small extra cleanup. * Minor tweaks looking at the PR with a fresh eye. * src_loc comments * Add new test_descr_src_loc & and fix descr.h `concat()` `src_loc` bug discovered while working on the test. * Some more work on source code comments. * Fully document the ODR violations in the ODR guard itself and introduce `PYBIND11_TYPE_CASTER_ODR_GUARD_ON_IF_AVAILABLE` * Update comment (incl. mention of deadsnakes known to not work as intended). * Use no-destructor idiom for type_caster_odr_guard_registry, as suggested by @laramiel * Fix clang-tidy error: 'auto reg' can be declared as 'auto *reg' [readability-qualified-auto,-warnings-as-errors] * WIP * Revert "WIP" (tu_local_no_data_always_false_base experiment). This reverts commit31e8ac562f. * Change `PYBIND11_TYPE_CASTER_ODR_GUARD_ON` to `PYBIND11_ENABLE_TYPE_CASTER_ODR_GUARD`, based on a suggestion by @rainwoodman * Improved `#if` determining `PYBIND11_ENABLE_TYPE_CASTER_ODR_GUARD`, based on suggestion by @laramiel * Make `descr::sloc` `const`, as suggested by @rainwoodman * Rename macro to `PYBIND11_DETAIL_TYPE_CASTER_ODR_GUARD_IMPL_DEBUG`, as suggested by @laramiel * Tweak comments some more (add "white hat hacker" analogy). * Bring back `PYBIND11_CPP17` in determining `PYBIND11_ENABLE_TYPE_CASTER_ODR_GUARD`, to hopefully resolve most if not all of the many CI failures (89 failing, 32 successful: https://github.com/pybind/pybind11/runs/7430295771). * Try another workaround for `__has_builtin`-related breakages (https://github.com/pybind/pybind11/runs/7430720321). * Remove `defined(__has_builtin)` and subconditions. * Update "known to not work" expectation in test and comment. * `pytest.skip` `num_violations == 0` only `#ifdef __NO_INLINE__` (irrespective of the compiler) * Systematically change all new `#ifdef` to `#if defined` (review suggestion). * Bring back MSVC comment that got lost while experimenting.
142 lines
4.9 KiB
C++
142 lines
4.9 KiB
C++
// Copyright (c) 2022 The Pybind Development Team.
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// All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "pybind11_tests.h"
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// This test actually works with almost all C++17 compilers, but is currently
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// only needed (and tested) for type_caster_odr_guard.h, for simplicity.
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#ifndef PYBIND11_ENABLE_TYPE_CASTER_ODR_GUARD
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TEST_SUBMODULE(descr_src_loc, m) { m.attr("block_descr_offset") = py::none(); }
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#else
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namespace pybind11_tests {
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namespace descr_src_loc {
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using py::detail::const_name;
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using py::detail::src_loc;
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struct block_descr {
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static constexpr unsigned offset = __LINE__;
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static constexpr auto c0 = py::detail::descr<0>(src_loc::here());
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static constexpr auto c1 = py::detail::descr<3>("Abc");
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static constexpr auto c2 = py::detail::descr<1>(src_loc::here(), 'D');
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static constexpr auto c3 = py::detail::descr<2>(src_loc::here(), 'E', 'f');
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};
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struct block_const_name {
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static constexpr unsigned offset = __LINE__;
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static constexpr auto c0 = const_name("G");
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static constexpr auto c1 = const_name("Hi");
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static constexpr auto c2 = const_name<0>();
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static constexpr auto c3 = const_name<1>();
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static constexpr auto c4 = const_name<23>();
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static constexpr auto c5 = const_name<std::string>();
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static constexpr auto c6 = const_name<true>("J", "K");
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static constexpr auto c7 = const_name<false>("L", "M");
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};
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# if defined(PYBIND11_DETAIL_UNDERSCORE_BACKWARD_COMPATIBILITY)
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struct block_underscore {
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static constexpr unsigned offset = __LINE__;
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// Using a macro to avoid copying the block_const_name code garbles the src_loc.line numbers.
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static constexpr auto c0 = const_name("G");
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static constexpr auto c1 = const_name("Hi");
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static constexpr auto c2 = const_name<0>();
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static constexpr auto c3 = const_name<1>();
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static constexpr auto c4 = const_name<23>();
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static constexpr auto c5 = const_name<std::string>();
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static constexpr auto c6 = const_name<true>("J", "K");
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static constexpr auto c7 = const_name<false>("L", "M");
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};
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# endif
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struct block_plus {
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static constexpr unsigned offset = __LINE__;
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static constexpr auto c0 = const_name("N") + // critical line break
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const_name("O");
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static constexpr auto c1 = const_name("P", src_loc(nullptr, 0)) + // critical line break
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const_name("Q");
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};
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struct block_concat {
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static constexpr unsigned offset = __LINE__;
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static constexpr auto c0 = py::detail::concat(const_name("R"));
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static constexpr auto c1 = py::detail::concat(const_name("S"), // critical line break
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const_name("T"));
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static constexpr auto c2
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= py::detail::concat(const_name("U", src_loc(nullptr, 0)), // critical line break
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const_name("V"));
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};
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struct block_type_descr {
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static constexpr unsigned offset = __LINE__;
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static constexpr auto c0 = py::detail::type_descr(const_name("W"));
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};
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struct block_int_to_str {
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static constexpr unsigned offset = __LINE__;
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static constexpr auto c0 = py::detail::int_to_str<0>::digits;
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static constexpr auto c1 = py::detail::int_to_str<4>::digits;
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static constexpr auto c2 = py::detail::int_to_str<56>::digits;
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};
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} // namespace descr_src_loc
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} // namespace pybind11_tests
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TEST_SUBMODULE(descr_src_loc, m) {
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using namespace pybind11_tests::descr_src_loc;
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# define ATTR_OFFS(B) m.attr(# B "_offset") = B::offset;
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# define ATTR_BLKC(B, C) \
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m.attr(#B "_" #C) = py::make_tuple(B::C.text, B::C.sloc.file, B::C.sloc.line);
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ATTR_OFFS(block_descr)
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ATTR_BLKC(block_descr, c0)
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ATTR_BLKC(block_descr, c1)
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ATTR_BLKC(block_descr, c2)
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ATTR_BLKC(block_descr, c3)
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ATTR_OFFS(block_const_name)
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ATTR_BLKC(block_const_name, c0)
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ATTR_BLKC(block_const_name, c1)
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ATTR_BLKC(block_const_name, c2)
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ATTR_BLKC(block_const_name, c3)
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ATTR_BLKC(block_const_name, c4)
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ATTR_BLKC(block_const_name, c5)
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ATTR_BLKC(block_const_name, c6)
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ATTR_BLKC(block_const_name, c7)
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ATTR_OFFS(block_underscore)
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ATTR_BLKC(block_underscore, c0)
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ATTR_BLKC(block_underscore, c1)
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ATTR_BLKC(block_underscore, c2)
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ATTR_BLKC(block_underscore, c3)
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ATTR_BLKC(block_underscore, c4)
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ATTR_BLKC(block_underscore, c5)
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ATTR_BLKC(block_underscore, c6)
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ATTR_BLKC(block_underscore, c7)
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ATTR_OFFS(block_plus)
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ATTR_BLKC(block_plus, c0)
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ATTR_BLKC(block_plus, c1)
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ATTR_OFFS(block_concat)
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ATTR_BLKC(block_concat, c0)
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ATTR_BLKC(block_concat, c1)
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ATTR_BLKC(block_concat, c2)
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ATTR_OFFS(block_type_descr)
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ATTR_BLKC(block_type_descr, c0)
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ATTR_OFFS(block_int_to_str)
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ATTR_BLKC(block_int_to_str, c0)
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ATTR_BLKC(block_int_to_str, c1)
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ATTR_BLKC(block_int_to_str, c2)
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}
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#endif // PYBIND11_ENABLE_TYPE_CASTER_ODR_GUARD
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