exception.cpp

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#include <pybind11/pybind11.h>
#include <pybind11/stl.h>

#include <exception>
#include <functional>
#include <sstream>      // __str__
#include <string>

#ifndef BINDER_PYBIND11_TYPE_CASTER
#define BINDER_PYBIND11_TYPE_CASTER
PYBIND11_DECLARE_HOLDER_TYPE(T, std::shared_ptr<T>)
PYBIND11_DECLARE_HOLDER_TYPE(T, T*)
PYBIND11_MAKE_OPAQUE(std::shared_ptr<void>)
#endif

// std::exception file:bits/exception.h line:61
struct PyCallBack_std_exception : public std::exception
{
        using std::exception::exception;

        const char* what() const throw() override
        {
                pybind11::gil_scoped_acquire gil;
                pybind11::function overload = pybind11::get_overload(
                        static_cast<const std::exception*>(this), "what");
                if (overload)
                {
                        auto o =
                                overload.operator()<pybind11::return_value_policy::reference>();
                        if (pybind11::detail::cast_is_temporary_value_reference<
                                        const char*>::value)
                        {
// pybind11 <=2.4: overload_caster_t, otherwise: override_caster_t
#if (PYBIND11_MAJOR_VERSION == 2 && PYBIND11_MINOR_VERSION <= 4)
                                static pybind11::detail::overload_caster_t<const char*> caster;
#else
                                static pybind11::detail::override_caster_t<const char*> caster;
#endif
                                return pybind11::detail::cast_ref<const char*>(
                                        std::move(o), caster);
                        }
                        else
                                return pybind11::detail::cast_safe<const char*>(std::move(o));
                }
                return exception::what();
        }
};

void bind_std_exception(
        std::function<pybind11::module&(std::string const& namespace_)>& M)
{
        {  // std::exception file:bits/exception.h line:61
                pybind11::class_<
                        std::exception, std::shared_ptr<std::exception>,
                        PyCallBack_std_exception>
                        cl(M("std"), "exception", "");
                cl.def(pybind11::init(
                        []() { return new std::exception(); },
                        []() { return new PyCallBack_std_exception(); }));
                cl.def(pybind11::init([](PyCallBack_std_exception const& o) {
                        return new PyCallBack_std_exception(o);
                }));
                cl.def(pybind11::init(
                        [](std::exception const& o) { return new std::exception(o); }));
                cl.def(
                        "assign",
                        (class std::exception &
                         (std::exception::*)(const class std::exception&)) &
                                std::exception::operator=,
                        "C++: std::exception::operator=(const class std::exception &) --> "
                        "class std::exception &",
                        pybind11::return_value_policy::automatic, pybind11::arg(""));
                cl.def(
                        "what",
                        (const char* (std::exception::*)() const) & std::exception::what,
                        "C++: std::exception::what() const --> const char *",
                        pybind11::return_value_policy::automatic);
        }
}