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gh-79315: Add Include/cpython/sliceobject.h header by vstinner · Pull Request #139729 · python/cpython · GitHub

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gh-79315: Add Include/cpython/sliceobject.h header #139729

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Merged
vstinner merged 1 commit into from
Oct 7, 2025
Conversation 0 Commits 1 Checks 45 Files changed
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gh-79315: Add Include/cpython/sliceobject.h header #139729

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20 changes: 20 additions & 0 deletions Include/cpython/sliceobject.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
#ifndef Py_CPYTHON_SLICEOBJECT_H
# error "this header file must not be included directly"
#endif

/* Slice object interface */

/*
A slice object containing start, stop, and step data members (the
names are from range). After much talk with Guido, it was decided to
let these be any arbitrary python type. Py_None stands for omitted values.
*/
typedef struct {
PyObject_HEAD
PyObject *start, *stop, *step; /* not NULL */
} PySliceObject;

PyAPI_FUNC(PyObject *) _PySlice_FromIndices(Py_ssize_t start, Py_ssize_t stop);
PyAPI_FUNC(int) _PySlice_GetLongIndices(PySliceObject *self, PyObject *length,
PyObject **start_ptr, PyObject **stop_ptr,
PyObject **step_ptr);
25 changes: 6 additions & 19 deletions Include/sliceobject.h
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Original file line number Diff line number Diff line change
Expand Up @@ -16,32 +16,13 @@ PyAPI_DATA(PyObject) _Py_EllipsisObject; /* Don't use this directly */

/* Slice object interface */

/*

A slice object containing start, stop, and step data members (the
names are from range). After much talk with Guido, it was decided to
let these be any arbitrary python type. Py_None stands for omitted values.
*/
#ifndef Py_LIMITED_API
typedef struct {
PyObject_HEAD
PyObject *start, *stop, *step; /* not NULL */
} PySliceObject;
#endif

PyAPI_DATA(PyTypeObject) PySlice_Type;
PyAPI_DATA(PyTypeObject) PyEllipsis_Type;

#define PySlice_Check(op) Py_IS_TYPE((op), &PySlice_Type)

PyAPI_FUNC(PyObject *) PySlice_New(PyObject* start, PyObject* stop,
PyObject* step);
#ifndef Py_LIMITED_API
PyAPI_FUNC(PyObject *) _PySlice_FromIndices(Py_ssize_t start, Py_ssize_t stop);
PyAPI_FUNC(int) _PySlice_GetLongIndices(PySliceObject *self, PyObject *length,
PyObject **start_ptr, PyObject **stop_ptr,
PyObject **step_ptr);
#endif
PyAPI_FUNC(int) PySlice_GetIndices(PyObject *r, Py_ssize_t length,
Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step);
Py_DEPRECATED(3.7)
Expand All @@ -63,6 +44,12 @@ PyAPI_FUNC(Py_ssize_t) PySlice_AdjustIndices(Py_ssize_t length,
Py_ssize_t step);
#endif

#ifndef Py_LIMITED_API
# define Py_CPYTHON_SLICEOBJECT_H
# include "cpython/sliceobject.h"
# undef Py_CPYTHON_SLICEOBJECT_H
#endif

#ifdef __cplusplus
}
#endif
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1 change: 1 addition & 0 deletions Makefile.pre.in
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Original file line number Diff line number Diff line change
Expand Up @@ -1296,6 +1296,7 @@ PYTHON_HEADERS= \
$(srcdir)/Include/cpython/pythonrun.h \
$(srcdir)/Include/cpython/pythread.h \
$(srcdir)/Include/cpython/setobject.h \
$(srcdir)/Include/cpython/sliceobject.h \
$(srcdir)/Include/cpython/traceback.h \
$(srcdir)/Include/cpython/tracemalloc.h \
$(srcdir)/Include/cpython/tupleobject.h \
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1 change: 1 addition & 0 deletions PCbuild/pythoncore.vcxproj
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Expand Up @@ -190,6 +190,7 @@
<ClInclude Include="..\Include\cpython\pythonrun.h" />
<ClInclude Include="..\Include\cpython\pythread.h" />
<ClInclude Include="..\Include\cpython\setobject.h" />
<ClInclude Include="..\Include\cpython\sliceobject.h" />
<ClInclude Include="..\Include\cpython\traceback.h" />
<ClInclude Include="..\Include\cpython\tracemalloc.h" />
<ClInclude Include="..\Include\cpython\tupleobject.h" />
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3 changes: 3 additions & 0 deletions PCbuild/pythoncore.vcxproj.filters
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Original file line number Diff line number Diff line change
Expand Up @@ -492,6 +492,9 @@
<ClInclude Include="..\Include\cpython\tupleobject.h">
<Filter>Include\cpython</Filter>
</ClInclude>
<ClInclude Include="..\Include\cpython\sliceobject.h">
<Filter>Include\cpython</Filter>
</ClInclude>
<ClInclude Include="..\Include\cpython\traceback.h">
<Filter>Include\cpython</Filter>
</ClInclude>
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