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98e50b702d
* tests: add regressions for shared_ptr reference_internal fallback * fix: avoid copy constructor instantiation in shared_ptr fallback cast * Remove stray empty line * tests: rename PyTorch shared_ptr regression test files * refactor: add cast_non_owning helper for reference-like casts Name the non-owning generic cast path so callers do not have to rediscover that reference-like policies must pass null copy/move constructor callbacks. This keeps the shared_ptr reference_internal fallback self-documenting and points future maintainers toward the safe API. Made-with: Cursor * tests: guard deprecated-copy warning probes with __has_warning Use __has_warning for the Clang-only regression test so older compiler jobs skip unsupported warning groups instead of failing with -Wunknown-warning-option. A simple __clang_major__ >= 13 guard would be shorter, but it bakes in a version cutoff; __has_warning is slightly more verbose while being more robust to vendor builds, backports, and future packaging differences. Made-with: Cursor --------- Co-authored-by: Ralf W. Grosse-Kunstleve <rgrossekunst@nvidia.com>
63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
#include "pybind11_tests.h"
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#include <memory>
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#include <string>
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#if defined(__clang__)
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# if __has_warning("-Wdeprecated-copy-with-user-provided-dtor")
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# pragma clang diagnostic error "-Wdeprecated-copy-with-user-provided-dtor"
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# endif
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# if __has_warning("-Wdeprecated-copy-with-dtor")
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# pragma clang diagnostic error "-Wdeprecated-copy-with-dtor"
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# endif
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#endif
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namespace test_pytorch_regressions {
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// Directly extracted from PyTorch patterns that regressed in CI.
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struct TracingState : std::enable_shared_from_this<TracingState> {
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TracingState() = default;
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~TracingState() = default;
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int value = 0;
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};
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const std::shared_ptr<TracingState> &get_tracing_state() {
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static std::shared_ptr<TracingState> state = std::make_shared<TracingState>();
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return state;
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}
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struct InterfaceType {
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~InterfaceType() = default;
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int value = 0;
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};
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using InterfaceTypePtr = std::shared_ptr<InterfaceType>;
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struct CompilationUnit {
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InterfaceTypePtr iface = std::make_shared<InterfaceType>();
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InterfaceTypePtr get_interface(const std::string &) const { return iface; }
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};
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} // namespace test_pytorch_regressions
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TEST_SUBMODULE(pybind11_pytorch_regressions, m) {
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using namespace test_pytorch_regressions;
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py::class_<TracingState, std::shared_ptr<TracingState>>(m, "TracingState")
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.def(py::init<>())
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.def_readwrite("value", &TracingState::value);
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m.def("_get_tracing_state", []() { return get_tracing_state(); });
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py::class_<InterfaceType, InterfaceTypePtr>(m, "InterfaceType")
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.def(py::init<>())
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.def_readwrite("value", &InterfaceType::value);
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py::class_<CompilationUnit, std::shared_ptr<CompilationUnit>>(m, "CompilationUnit")
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.def(py::init<>())
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.def("get_interface",
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[](const std::shared_ptr<CompilationUnit> &self, const std::string &name) {
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return self->get_interface(name);
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});
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}
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