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#ifndef GREENLET_EXCEPTION_STATE_CPP
#define GREENLET_EXCEPTION_STATE_CPP
#include <Python.h>
#include "TGreenlet.hpp"
namespace greenlet {
ExceptionState::ExceptionState()
{
this->clear();
}
void ExceptionState::operator<<(const PyThreadState *const tstate) noexcept
{
this->exc_info = tstate->exc_info;
this->exc_state = tstate->exc_state;
}
void ExceptionState::operator>>(PyThreadState *const tstate) noexcept
{
tstate->exc_state = this->exc_state;
tstate->exc_info =
this->exc_info ? this->exc_info : &tstate->exc_state;
this->clear();
}
void ExceptionState::clear() noexcept
{
this->exc_info = nullptr;
this->exc_state.exc_value = nullptr;
#if !GREENLET_PY311
this->exc_state.exc_type = nullptr;
this->exc_state.exc_traceback = nullptr;
#endif
this->exc_state.previous_item = nullptr;
}
int ExceptionState::tp_traverse(visitproc visit, void* arg) noexcept
{
Py_VISIT(this->exc_state.exc_value);
#if !GREENLET_PY311
Py_VISIT(this->exc_state.exc_type);
Py_VISIT(this->exc_state.exc_traceback);
#endif
return 0;
}
void ExceptionState::tp_clear() noexcept
{
Py_CLEAR(this->exc_state.exc_value);
#if !GREENLET_PY311
Py_CLEAR(this->exc_state.exc_type);
Py_CLEAR(this->exc_state.exc_traceback);
#endif
}
}; // namespace greenlet
#endif // GREENLET_EXCEPTION_STATE_CPP