pyo3_ffi/
sliceobject.rs

1use crate::object::*;
2use crate::pyport::Py_ssize_t;
3use core::ffi::c_int;
4
5extern_libpython! {
6    #[cfg(all(not(GraalPy), not(all(Py_3_13, Py_LIMITED_API))))]
7    #[cfg_attr(PyPy, link_name = "_PyPy_EllipsisObject")]
8    static mut _Py_EllipsisObject: PyObject;
9
10    #[cfg(GraalPy)]
11    static mut _Py_EllipsisObjectReference: *mut PyObject;
12}
13
14#[inline]
15pub unsafe fn Py_Ellipsis() -> *mut PyObject {
16    #[cfg(all(not(GraalPy), all(Py_3_13, Py_LIMITED_API)))]
17    return Py_GetConstantBorrowed(Py_CONSTANT_ELLIPSIS);
18
19    #[cfg(all(not(GraalPy), not(all(Py_3_13, Py_LIMITED_API))))]
20    return &raw mut _Py_EllipsisObject;
21
22    #[cfg(GraalPy)]
23    return _Py_EllipsisObjectReference;
24}
25
26#[cfg(not(Py_LIMITED_API))]
27#[repr(C)]
28pub struct PySliceObject {
29    pub ob_base: PyObject,
30    #[cfg(not(GraalPy))]
31    pub start: *mut PyObject,
32    #[cfg(not(GraalPy))]
33    pub stop: *mut PyObject,
34    #[cfg(not(GraalPy))]
35    pub step: *mut PyObject,
36}
37
38#[cfg(not(RustPython))]
39extern_libpython! {
40    #[cfg_attr(PyPy, link_name = "PyPySlice_Type")]
41    pub static mut PySlice_Type: PyTypeObject;
42    pub static mut PyEllipsis_Type: PyTypeObject;
43}
44
45#[inline]
46#[cfg(not(RustPython))]
47pub unsafe fn PySlice_Check(op: *mut PyObject) -> c_int {
48    Py_IS_TYPE(op, &raw mut PySlice_Type)
49}
50
51extern_libpython! {
52    #[cfg(RustPython)]
53    pub fn PySlice_Check(op: *mut PyObject) -> c_int;
54
55    #[cfg_attr(PyPy, link_name = "PyPySlice_New")]
56    pub fn PySlice_New(
57        start: *mut PyObject,
58        stop: *mut PyObject,
59        step: *mut PyObject,
60    ) -> *mut PyObject;
61
62    // skipped non-limited _PySlice_FromIndices
63    // skipped non-limited _PySlice_GetLongIndices
64
65    #[cfg_attr(PyPy, link_name = "PyPySlice_GetIndices")]
66    pub fn PySlice_GetIndices(
67        r: *mut PyObject,
68        length: Py_ssize_t,
69        start: *mut Py_ssize_t,
70        stop: *mut Py_ssize_t,
71        step: *mut Py_ssize_t,
72    ) -> c_int;
73}
74
75#[inline]
76pub unsafe fn PySlice_GetIndicesEx(
77    slice: *mut PyObject,
78    length: Py_ssize_t,
79    start: *mut Py_ssize_t,
80    stop: *mut Py_ssize_t,
81    step: *mut Py_ssize_t,
82    slicelength: *mut Py_ssize_t,
83) -> c_int {
84    if PySlice_Unpack(slice, start, stop, step) < 0 {
85        *slicelength = 0;
86        -1
87    } else {
88        *slicelength = PySlice_AdjustIndices(length, start, stop, *step);
89        0
90    }
91}
92
93extern_libpython! {
94    #[cfg_attr(PyPy, link_name = "PyPySlice_Unpack")]
95    pub fn PySlice_Unpack(
96        slice: *mut PyObject,
97        start: *mut Py_ssize_t,
98        stop: *mut Py_ssize_t,
99        step: *mut Py_ssize_t,
100    ) -> c_int;
101
102    #[cfg_attr(PyPy, link_name = "PyPySlice_AdjustIndices")]
103    pub fn PySlice_AdjustIndices(
104        length: Py_ssize_t,
105        start: *mut Py_ssize_t,
106        stop: *mut Py_ssize_t,
107        step: Py_ssize_t,
108    ) -> Py_ssize_t;
109}
pyo3_ffi/sliceobject.rs

pyo3_ffi/
sliceobject.rs
