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* Incomplete attempt to address regression introduced in #5381 * style: pre-commit fixes * Revert "style: pre-commit fixes" This reverts commit9d107d2f75
. * Revert "Incomplete attempt to address regression introduced in #5381" This reverts commit8cf1cdbc96
. * Simpler fix for the regression introduced in #5381 * style: pre-commit fixes * Added if constexpr workaround This can probably be done better but at least this is a start. * style: pre-commit fixes * Replace if constexpr with template struct if constexpr was not added until C++ 17. I think this should do the same thing as before. * style: pre-commit fixes * Made comment clearer * Added test cases * style: pre-commit fixes * Fixed is_same_or_base_of reference * style: pre-commit fixes * Added static assert messages * style: pre-commit fixes * Replaced typedef with using * style: pre-commit fixes * Back out `ForwardClassPtr` (to be discussed separately). Tested locally with clang-tidy. * Shuffle new `static_assert()` and leave error messages blank (they are more distracting than helpful here). --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: gentlegiantJGC <gentlegiantJGC@users.noreply.github.com> Co-authored-by: Ralf W. Grosse-Kunstleve <rgrossekunst@nvidia.com>
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@ -1564,15 +1564,24 @@ struct function_call {
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handle init_self;
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};
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// See PR #5396 for the discussion that led to this
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template <typename Base, typename Derived, typename = void>
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struct is_same_or_base_of : std::is_same<Base, Derived> {};
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// Only evaluate is_base_of if Derived is complete.
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// is_base_of raises a compiler error if Derived is incomplete.
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template <typename Base, typename Derived>
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struct is_same_or_base_of<Base, Derived, decltype(void(sizeof(Derived)))>
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: any_of<std::is_same<Base, Derived>, std::is_base_of<Base, Derived>> {};
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/// Helper class which loads arguments for C++ functions called from Python
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template <typename... Args>
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class argument_loader {
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using indices = make_index_sequence<sizeof...(Args)>;
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template <typename Arg>
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using argument_is_args = std::is_base_of<args, intrinsic_t<Arg>>;
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using argument_is_args = is_same_or_base_of<args, intrinsic_t<Arg>>;
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template <typename Arg>
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using argument_is_kwargs = std::is_base_of<kwargs, intrinsic_t<Arg>>;
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using argument_is_kwargs = is_same_or_base_of<kwargs, intrinsic_t<Arg>>;
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// Get kwargs argument position, or -1 if not present:
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static constexpr auto kwargs_pos = constexpr_last<argument_is_kwargs, Args...>();
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@ -52,8 +52,24 @@ void bind_empty0(py::module_ &m) {
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}
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} // namespace pr4220_tripped_over_this
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namespace pr5396_forward_declared_class {
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class ForwardClass;
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class Args : public py::args {};
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} // namespace pr5396_forward_declared_class
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} // namespace test_class
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static_assert(py::detail::is_same_or_base_of<py::args, py::args>::value, "");
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static_assert(
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py::detail::is_same_or_base_of<py::args,
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test_class::pr5396_forward_declared_class::Args>::value,
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"");
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static_assert(!py::detail::is_same_or_base_of<
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py::args,
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test_class::pr5396_forward_declared_class::ForwardClass>::value,
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"");
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TEST_SUBMODULE(class_, m) {
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m.def("obj_class_name", [](py::handle obj) { return py::detail::obj_class_name(obj.ptr()); });
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