1 #ifndef Py_CPYTHON_TUPLEOBJECT_H
2 #  error "this header file must not be included directly"
3 #endif
4 
5 typedef struct {
6     PyObject_VAR_HEAD
7     /* ob_item contains space for 'ob_size' elements.
8        Items must normally not be NULL, except during construction when
9        the tuple is not yet visible outside the function that builds it. */
10     PyObject *ob_item[1];
11 } PyTupleObject;
12 
13 PyAPI_FUNC(int) _PyTuple_Resize(PyObject **, Py_ssize_t);
14 PyAPI_FUNC(void) _PyTuple_MaybeUntrack(PyObject *);
15 
16 /* Cast argument to PyTupleObject* type. */
17 #define _PyTuple_CAST(op) \
18     (assert(PyTuple_Check(op)), _Py_CAST(PyTupleObject*, (op)))
19 
20 // Macros and static inline functions, trading safety for speed
21 
PyTuple_GET_SIZE(PyObject * op)22 static inline Py_ssize_t PyTuple_GET_SIZE(PyObject *op) {
23     PyTupleObject *tuple = _PyTuple_CAST(op);
24     return Py_SIZE(tuple);
25 }
26 #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
27 #  define PyTuple_GET_SIZE(op) PyTuple_GET_SIZE(_PyObject_CAST(op))
28 #endif
29 
30 #define PyTuple_GET_ITEM(op, index) (_PyTuple_CAST(op)->ob_item[index])
31 
32 /* Function *only* to be used to fill in brand new tuples */
33 static inline void
PyTuple_SET_ITEM(PyObject * op,Py_ssize_t index,PyObject * value)34 PyTuple_SET_ITEM(PyObject *op, Py_ssize_t index, PyObject *value) {
35     PyTupleObject *tuple = _PyTuple_CAST(op);
36     tuple->ob_item[index] = value;
37 }
38 #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
39 #define PyTuple_SET_ITEM(op, index, value) \
40     PyTuple_SET_ITEM(_PyObject_CAST(op), index, _PyObject_CAST(value))
41 #endif
42 
43 PyAPI_FUNC(void) _PyTuple_DebugMallocStats(FILE *out);
44