pyo3_ffi/
sliceobject.rs

1use crate::object::*;
2use crate::pyport::Py_ssize_t;
3use std::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
38extern_libpython! {
39    #[cfg_attr(PyPy, link_name = "PyPySlice_Type")]
40    pub static mut PySlice_Type: PyTypeObject;
41    pub static mut PyEllipsis_Type: PyTypeObject;
42}
43
44#[inline]
45pub unsafe fn PySlice_Check(op: *mut PyObject) -> c_int {
46    (Py_TYPE(op) == &raw mut PySlice_Type) as c_int
47}
48
49extern_libpython! {
50    #[cfg_attr(PyPy, link_name = "PyPySlice_New")]
51    pub fn PySlice_New(
52        start: *mut PyObject,
53        stop: *mut PyObject,
54        step: *mut PyObject,
55    ) -> *mut PyObject;
56
57    // skipped non-limited _PySlice_FromIndices
58    // skipped non-limited _PySlice_GetLongIndices
59
60    #[cfg_attr(PyPy, link_name = "PyPySlice_GetIndices")]
61    pub fn PySlice_GetIndices(
62        r: *mut PyObject,
63        length: Py_ssize_t,
64        start: *mut Py_ssize_t,
65        stop: *mut Py_ssize_t,
66        step: *mut Py_ssize_t,
67    ) -> c_int;
68}
69
70#[inline]
71pub unsafe fn PySlice_GetIndicesEx(
72    slice: *mut PyObject,
73    length: Py_ssize_t,
74    start: *mut Py_ssize_t,
75    stop: *mut Py_ssize_t,
76    step: *mut Py_ssize_t,
77    slicelength: *mut Py_ssize_t,
78) -> c_int {
79    if PySlice_Unpack(slice, start, stop, step) < 0 {
80        *slicelength = 0;
81        -1
82    } else {
83        *slicelength = PySlice_AdjustIndices(length, start, stop, *step);
84        0
85    }
86}
87
88extern_libpython! {
89    #[cfg_attr(PyPy, link_name = "PyPySlice_Unpack")]
90    pub fn PySlice_Unpack(
91        slice: *mut PyObject,
92        start: *mut Py_ssize_t,
93        stop: *mut Py_ssize_t,
94        step: *mut Py_ssize_t,
95    ) -> c_int;
96
97    #[cfg_attr(PyPy, link_name = "PyPySlice_AdjustIndices")]
98    pub fn PySlice_AdjustIndices(
99        length: Py_ssize_t,
100        start: *mut Py_ssize_t,
101        stop: *mut Py_ssize_t,
102        step: Py_ssize_t,
103    ) -> Py_ssize_t;
104}
pyo3_ffi/sliceobject.rs

pyo3_ffi/
sliceobject.rs
