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tupleobject.h
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40 lines (33 loc) · 1.36 KB
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#ifndef Py_CPYTHON_TUPLEOBJECT_H
# error "this header file must not be included directly"
#endif
typedef struct {
PyObject_VAR_HEAD
/* Cached hash. Initially set to -1. */
Py_hash_t ob_hash;
/* ob_item contains space for 'ob_size' elements.
Items must normally not be NULL, except during construction when
the tuple is not yet visible outside the function that builds it. */
PyObject *ob_item[1];
} PyTupleObject;
PyAPI_FUNC(int) _PyTuple_Resize(PyObject **, Py_ssize_t);
/* Cast argument to PyTupleObject* type. */
#define _PyTuple_CAST(op) \
(assert(PyTuple_Check(op)), _Py_CAST(PyTupleObject*, (op)))
// Macros and static inline functions, trading safety for speed
static inline Py_ssize_t PyTuple_GET_SIZE(PyObject *op) {
PyTupleObject *tuple = _PyTuple_CAST(op);
return Py_SIZE(tuple);
}
#define PyTuple_GET_SIZE(op) PyTuple_GET_SIZE(_PyObject_CAST(op))
#define PyTuple_GET_ITEM(op, index) (_PyTuple_CAST(op)->ob_item[(index)])
/* Function *only* to be used to fill in brand new tuples */
static inline void
PyTuple_SET_ITEM(PyObject *op, Py_ssize_t index, PyObject *value) {
PyTupleObject *tuple = _PyTuple_CAST(op);
assert(0 <= index);
assert(index < Py_SIZE(tuple));
tuple->ob_item[index] = value;
}
#define PyTuple_SET_ITEM(op, index, value) \
PyTuple_SET_ITEM(_PyObject_CAST(op), (index), _PyObject_CAST(value))