1 2 /* List object interface */ 3 4 /* 5 Another generally useful object type is an list of object pointers. 6 This is a mutable type: the list items can be changed, and items can be 7 added or removed. Out-of-range indices or non-list objects are ignored. 8 9 *** WARNING *** PyList_SetItem does not increment the new item's reference 10 count, but does decrement the reference count of the item it replaces, 11 if not nil. It does *decrement* the reference count if it is *not* 12 inserted in the list. Similarly, PyList_GetItem does not increment the 13 returned item's reference count. 14 */ 15 16 #ifndef Py_LISTOBJECT_H 17 #define Py_LISTOBJECT_H 18 #ifdef __cplusplus 19 extern "C" { 20 #endif 21 22 typedef struct { 23 PyObject_VAR_HEAD 24 /* Vector of pointers to list elements. list[0] is ob_item[0], etc. */ 25 PyObject **ob_item; 26 27 /* ob_item contains space for 'allocated' elements. The number 28 * currently in use is ob_size. 29 * Invariants: 30 * 0 <= ob_size <= allocated 31 * len(list) == ob_size 32 * ob_item == NULL implies ob_size == allocated == 0 33 * list.sort() temporarily sets allocated to -1 to detect mutations. 34 * 35 * Items must normally not be NULL, except during construction when 36 * the list is not yet visible outside the function that builds it. 37 */ 38 Py_ssize_t allocated; 39 } PyListObject; 40 41 PyAPI_DATA(PyTypeObject) PyList_Type; 42 43 #define PyList_Check(op) \ 44 PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_LIST_SUBCLASS) 45 #define PyList_CheckExact(op) (Py_TYPE(op) == &PyList_Type) 46 47 PyAPI_FUNC(PyObject *) PyList_New(Py_ssize_t size); 48 PyAPI_FUNC(Py_ssize_t) PyList_Size(PyObject *); 49 PyAPI_FUNC(PyObject *) PyList_GetItem(PyObject *, Py_ssize_t); 50 PyAPI_FUNC(int) PyList_SetItem(PyObject *, Py_ssize_t, PyObject *); 51 PyAPI_FUNC(int) PyList_Insert(PyObject *, Py_ssize_t, PyObject *); 52 PyAPI_FUNC(int) PyList_Append(PyObject *, PyObject *); 53 PyAPI_FUNC(PyObject *) PyList_GetSlice(PyObject *, Py_ssize_t, Py_ssize_t); 54 PyAPI_FUNC(int) PyList_SetSlice(PyObject *, Py_ssize_t, Py_ssize_t, PyObject *); 55 PyAPI_FUNC(int) PyList_Sort(PyObject *); 56 PyAPI_FUNC(int) PyList_Reverse(PyObject *); 57 PyAPI_FUNC(PyObject *) PyList_AsTuple(PyObject *); 58 PyAPI_FUNC(PyObject *) _PyList_Extend(PyListObject *, PyObject *); 59 60 /* Macro, trading safety for speed */ 61 #define PyList_GET_ITEM(op, i) (((PyListObject *)(op))->ob_item[i]) 62 #define PyList_SET_ITEM(op, i, v) (((PyListObject *)(op))->ob_item[i] = (v)) 63 #define PyList_GET_SIZE(op) Py_SIZE(op) 64 65 #ifdef __cplusplus 66 } 67 #endif 68 #endif /* !Py_LISTOBJECT_H */ 69
