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authorDevtools Arcadia <arcadia-devtools@yandex-team.ru>2022-02-07 18:08:42 +0300
committerDevtools Arcadia <arcadia-devtools@mous.vla.yp-c.yandex.net>2022-02-07 18:08:42 +0300
commit1110808a9d39d4b808aef724c861a2e1a38d2a69 (patch)
treee26c9fed0de5d9873cce7e00bc214573dc2195b7 /contrib/tools/python/src/Include/tupleobject.h
downloadydb-1110808a9d39d4b808aef724c861a2e1a38d2a69.tar.gz
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ref:cde9a383711a11544ce7e107a78147fb96cc4029
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+
+/* Tuple object interface */
+
+#ifndef Py_TUPLEOBJECT_H
+#define Py_TUPLEOBJECT_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+Another generally useful object type is a tuple of object pointers.
+For Python, this is an immutable type. C code can change the tuple items
+(but not their number), and even use tuples are general-purpose arrays of
+object references, but in general only brand new tuples should be mutated,
+not ones that might already have been exposed to Python code.
+
+*** WARNING *** PyTuple_SetItem does not increment the new item's reference
+count, but does decrement the reference count of the item it replaces,
+if not nil. It does *decrement* the reference count if it is *not*
+inserted in the tuple. Similarly, PyTuple_GetItem does not increment the
+returned item's reference count.
+*/
+
+typedef struct {
+ PyObject_VAR_HEAD
+ PyObject *ob_item[1];
+
+ /* 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.
+ */
+} PyTupleObject;
+
+PyAPI_DATA(PyTypeObject) PyTuple_Type;
+
+#define PyTuple_Check(op) \
+ PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TUPLE_SUBCLASS)
+#define PyTuple_CheckExact(op) (Py_TYPE(op) == &PyTuple_Type)
+
+PyAPI_FUNC(PyObject *) PyTuple_New(Py_ssize_t size);
+PyAPI_FUNC(Py_ssize_t) PyTuple_Size(PyObject *);
+PyAPI_FUNC(PyObject *) PyTuple_GetItem(PyObject *, Py_ssize_t);
+PyAPI_FUNC(int) PyTuple_SetItem(PyObject *, Py_ssize_t, PyObject *);
+PyAPI_FUNC(PyObject *) PyTuple_GetSlice(PyObject *, Py_ssize_t, Py_ssize_t);
+PyAPI_FUNC(int) _PyTuple_Resize(PyObject **, Py_ssize_t);
+PyAPI_FUNC(PyObject *) PyTuple_Pack(Py_ssize_t, ...);
+PyAPI_FUNC(void) _PyTuple_MaybeUntrack(PyObject *);
+
+/* Macro, trading safety for speed */
+#define PyTuple_GET_ITEM(op, i) (((PyTupleObject *)(op))->ob_item[i])
+#define PyTuple_GET_SIZE(op) Py_SIZE(op)
+
+/* Macro, *only* to be used to fill in brand new tuples */
+#define PyTuple_SET_ITEM(op, i, v) (((PyTupleObject *)(op))->ob_item[i] = v)
+
+PyAPI_FUNC(int) PyTuple_ClearFreeList(void);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_TUPLEOBJECT_H */