cpython/Include/internal/pycore_cell.h

#ifndef Py_INTERNAL_CELL_H
#define Py_INTERNAL_CELL_H

#include "pycore_critical_section.h"

#ifdef __cplusplus
extern "C" {
#endif

#ifndef Py_BUILD_CORE
#  error "this header requires Py_BUILD_CORE define"
#endif

// Sets the cell contents to `value` and return previous contents. Steals a
// reference to `value`.
static inline PyObject *
PyCell_SwapTakeRef(PyCellObject *cell, PyObject *value)
{ … }

static inline void
PyCell_SetTakeRef(PyCellObject *cell, PyObject *value)
{ … }

// Gets the cell contents. Returns a new reference.
static inline PyObject *
PyCell_GetRef(PyCellObject *cell)
{ … }

#ifdef __cplusplus
}
#endif
#endif   /* !Py_INTERNAL_CELL_H */