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author | Devtools Arcadia <arcadia-devtools@yandex-team.ru> | 2022-02-07 18:08:42 +0300 |
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committer | Devtools Arcadia <arcadia-devtools@mous.vla.yp-c.yandex.net> | 2022-02-07 18:08:42 +0300 |
commit | 1110808a9d39d4b808aef724c861a2e1a38d2a69 (patch) | |
tree | e26c9fed0de5d9873cce7e00bc214573dc2195b7 /contrib/tools/python/src/Include/tupleobject.h | |
download | ydb-1110808a9d39d4b808aef724c861a2e1a38d2a69.tar.gz |
intermediate changes
ref:cde9a383711a11544ce7e107a78147fb96cc4029
Diffstat (limited to 'contrib/tools/python/src/Include/tupleobject.h')
-rw-r--r-- | contrib/tools/python/src/Include/tupleobject.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/contrib/tools/python/src/Include/tupleobject.h b/contrib/tools/python/src/Include/tupleobject.h new file mode 100644 index 0000000000..a5ab733208 --- /dev/null +++ b/contrib/tools/python/src/Include/tupleobject.h @@ -0,0 +1,61 @@ + +/* 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 */ |