From 888553ee583839f622539721a7866cb3bb552553 Mon Sep 17 00:00:00 2001 From: Lysandros Nikolaou Date: Sat, 19 Oct 2024 03:18:20 +0200 Subject: [PATCH] Implement support for the free-threaded build of CPython 3.13 PR #1015 Co-authored-by: J. Nick Koston Co-authored-by: Sviatoslav Sydorenko --- .github/workflows/ci-cd.yml | 40 +- CHANGES/1015.feature.rst | 1 + CHANGES/1015.packaging.rst | 1 + docs/spelling_wordlist.txt | 1 + multidict/_multidict.c | 23 +- multidict/_multilib/pair_list.h | 48 +- multidict/_multilib/pythoncapi_compat.h | 1523 +++++++++++++++++++++++ pyproject.toml | 4 + 8 files changed, 1631 insertions(+), 10 deletions(-) create mode 100644 CHANGES/1015.feature.rst create mode 100644 CHANGES/1015.packaging.rst create mode 100644 multidict/_multilib/pythoncapi_compat.h diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml index a11fed2c6..d1b7032ba 100644 --- a/.github/workflows/ci-cd.yml +++ b/.github/workflows/ci-cd.yml @@ -150,6 +150,7 @@ jobs: strategy: matrix: pyver: + - 3.13-freethreading - 3.13 - 3.12 - 3.11 @@ -163,6 +164,10 @@ jobs: no-extensions: Y - os: windows no-extensions: Y + - os: macos + pyver: 3.13-freethreading # this is still tested within cibuildwheel + - os: windows + pyver: 3.13-freethreading # this is still tested within cibuildwheel include: - pyver: pypy-3.8 no-extensions: Y @@ -195,11 +200,44 @@ jobs: path: dist - name: Setup Python ${{ matrix.pyver }} - id: python-install + if: >- + !endsWith(matrix.pyver, '-freethreading') uses: actions/setup-python@v5 with: python-version: ${{ matrix.pyver }} allow-prereleases: true + - name: Setup Python ${{ matrix.pyver }} + if: endsWith(matrix.pyver, '-freethreading') + uses: deadsnakes/action@v3.2.0 + with: + python-version: 3.13-dev + nogil: true + - name: Compute runtime Python version + id: python-install + run: | + import sys + from os import environ + from pathlib import Path + + FILE_APPEND_MODE = 'a' + + python_version_str = ".".join( + map(str, sys.version_info[:3]), + ) + freethreading_suffix = ( + '' if sys.version_info < (3, 13) or sys._is_gil_enabled() + else 't' + ) + + with Path(environ['GITHUB_OUTPUT']).open( + mode=FILE_APPEND_MODE, + ) as outputs_file: + print( + f'python-version={python_version_str}{freethreading_suffix}', + file=outputs_file, + ) + shell: python + - name: Get pip cache dir id: pip-cache run: | diff --git a/CHANGES/1015.feature.rst b/CHANGES/1015.feature.rst new file mode 100644 index 000000000..c5da0e048 --- /dev/null +++ b/CHANGES/1015.feature.rst @@ -0,0 +1 @@ +Implemented support for the free-threaded build of CPython 3.13 -- by :user:`lysnikolaou`. diff --git a/CHANGES/1015.packaging.rst b/CHANGES/1015.packaging.rst new file mode 100644 index 000000000..0ce3d4fb1 --- /dev/null +++ b/CHANGES/1015.packaging.rst @@ -0,0 +1 @@ +Started publishing wheels made for the free-threaded build of CPython 3.13 -- by :user:`lysnikolaou`. diff --git a/docs/spelling_wordlist.txt b/docs/spelling_wordlist.txt index cc9d0a171..988c74e7e 100644 --- a/docs/spelling_wordlist.txt +++ b/docs/spelling_wordlist.txt @@ -18,6 +18,7 @@ cChardet changelog charset charsetdetect +CPython criterias css ctor diff --git a/multidict/_multidict.c b/multidict/_multidict.c index 60864953b..1507d7b7f 100644 --- a/multidict/_multidict.c +++ b/multidict/_multidict.c @@ -1,6 +1,8 @@ #include "Python.h" #include "structmember.h" +#include "_multilib/pythoncapi_compat.h" + // Include order important #include "_multilib/defs.h" #include "_multilib/istr.h" @@ -155,13 +157,17 @@ _multidict_append_items_seq(MultiDictObject *self, PyObject *arg, Py_INCREF(value); } else if (PyList_CheckExact(item)) { - if (PyList_GET_SIZE(item) != 2) { + if (PyList_Size(item) != 2) { + goto invalid_type; + } + key = PyList_GetItemRef(item, 0); + if (key == NULL) { + goto invalid_type; + } + value = PyList_GetItemRef(item, 1); + if (value == NULL) { goto invalid_type; } - key = PyList_GET_ITEM(item, 0); - Py_INCREF(key); - value = PyList_GET_ITEM(item, 1); - Py_INCREF(value); } else if (PySequence_Check(item)) { if (PySequence_Size(item) != 2) { @@ -2070,6 +2076,13 @@ PyInit__multidict(void) /* Instantiate this module */ module = PyModule_Create(&multidict_module); + if (module == NULL) { + goto fail; + } + +#ifdef Py_GIL_DISABLED + PyUnstable_Module_SetGIL(module, Py_MOD_GIL_NOT_USED); +#endif Py_INCREF(&istr_type); if (PyModule_AddObject( diff --git a/multidict/_multilib/pair_list.h b/multidict/_multilib/pair_list.h index 15291d46a..864b63eb6 100644 --- a/multidict/_multilib/pair_list.h +++ b/multidict/_multilib/pair_list.h @@ -916,13 +916,18 @@ _pair_list_post_update(pair_list_t *list, PyObject* used_keys, Py_ssize_t pos) for (; pos < list->size; pos++) { pair = pair_list_get(list, pos); - tmp = PyDict_GetItem(used_keys, pair->identity); - if (tmp == NULL) { + int status = PyDict_GetItemRef(used_keys, pair->identity, &tmp); + if (status == -1) { + // exception set + return -1; + } + else if (status == 0) { // not found continue; } num = PyLong_AsSsize_t(tmp); + Py_DECREF(tmp); if (num == -1) { if (!PyErr_Occurred()) { PyErr_SetString(PyExc_RuntimeError, "invalid internal state"); @@ -955,12 +960,18 @@ _pair_list_update(pair_list_t *list, PyObject *key, int found; int ident_cmp_res; - item = PyDict_GetItem(used_keys, identity); - if (item == NULL) { + int status = PyDict_GetItemRef(used_keys, identity, &item); + if (status == -1) { + // exception set + return -1; + } + else if (status == 0) { + // not found pos = 0; } else { pos = PyLong_AsSsize_t(item); + Py_DECREF(item); if (pos == -1) { if (!PyErr_Occurred()) { PyErr_SetString(PyExc_RuntimeError, "invalid internal state"); @@ -1087,18 +1098,28 @@ pair_list_update_from_seq(pair_list_t *list, PyObject *seq) } // Convert item to sequence, and verify length 2. +#ifdef Py_GIL_DISABLED + if (!PySequence_Check(item)) { +#else fast = PySequence_Fast(item, ""); if (fast == NULL) { if (PyErr_ExceptionMatches(PyExc_TypeError)) { +#endif PyErr_Format(PyExc_TypeError, "multidict cannot convert sequence element #%zd" " to a sequence", i); +#ifndef Py_GIL_DISABLED } +#endif goto fail_1; } +#ifdef Py_GIL_DISABLED + n = PySequence_Size(item); +#else n = PySequence_Fast_GET_SIZE(fast); +#endif if (n != 2) { PyErr_Format(PyExc_ValueError, "multidict update sequence element #%zd " @@ -1107,10 +1128,27 @@ pair_list_update_from_seq(pair_list_t *list, PyObject *seq) goto fail_1; } +#ifdef Py_GIL_DISABLED + key = PySequence_ITEM(item, 0); + if (key == NULL) { + PyErr_Format(PyExc_ValueError, + "multidict update sequence element #%zd's " + "key could not be fetched", i); + goto fail_1; + } + value = PySequence_ITEM(item, 1); + if (value == NULL) { + PyErr_Format(PyExc_ValueError, + "multidict update sequence element #%zd's " + "value could not be fetched", i); + goto fail_1; + } +#else key = PySequence_Fast_GET_ITEM(fast, 0); value = PySequence_Fast_GET_ITEM(fast, 1); Py_INCREF(key); Py_INCREF(value); +#endif identity = pair_list_calc_identity(list, key); if (identity == NULL) { @@ -1128,7 +1166,9 @@ pair_list_update_from_seq(pair_list_t *list, PyObject *seq) Py_DECREF(key); Py_DECREF(value); +#ifndef Py_GIL_DISABLED Py_DECREF(fast); +#endif Py_DECREF(item); Py_DECREF(identity); } diff --git a/multidict/_multilib/pythoncapi_compat.h b/multidict/_multilib/pythoncapi_compat.h new file mode 100644 index 000000000..8c1089508 --- /dev/null +++ b/multidict/_multilib/pythoncapi_compat.h @@ -0,0 +1,1523 @@ +// Header file providing new C API functions to old Python versions. +// +// File distributed under the Zero Clause BSD (0BSD) license. +// Copyright Contributors to the pythoncapi_compat project. +// +// Homepage: +// https://github.com/python/pythoncapi_compat +// +// Latest version: +// https://raw.githubusercontent.com/python/pythoncapi_compat/master/pythoncapi_compat.h +// +// The vendored version comes from commit: +// https://raw.githubusercontent.com/python/pythoncapi-compat/2d18aecd7b2f549d38a13e27b682ea4966f37bd8/pythoncapi_compat.h +// +// SPDX-License-Identifier: 0BSD + +#ifndef PYTHONCAPI_COMPAT +#define PYTHONCAPI_COMPAT + +#ifdef __cplusplus +extern "C" { +#endif + +#include + +// Python 3.11.0b4 added PyFrame_Back() to Python.h +#if PY_VERSION_HEX < 0x030b00B4 && !defined(PYPY_VERSION) +# include "frameobject.h" // PyFrameObject, PyFrame_GetBack() +#endif + + +#ifndef _Py_CAST +# define _Py_CAST(type, expr) ((type)(expr)) +#endif + +// Static inline functions should use _Py_NULL rather than using directly NULL +// to prevent C++ compiler warnings. On C23 and newer and on C++11 and newer, +// _Py_NULL is defined as nullptr. +#if (defined (__STDC_VERSION__) && __STDC_VERSION__ > 201710L) \ + || (defined(__cplusplus) && __cplusplus >= 201103) +# define _Py_NULL nullptr +#else +# define _Py_NULL NULL +#endif + +// Cast argument to PyObject* type. +#ifndef _PyObject_CAST +# define _PyObject_CAST(op) _Py_CAST(PyObject*, op) +#endif + + +// bpo-42262 added Py_NewRef() to Python 3.10.0a3 +#if PY_VERSION_HEX < 0x030A00A3 && !defined(Py_NewRef) +static inline PyObject* _Py_NewRef(PyObject *obj) +{ + Py_INCREF(obj); + return obj; +} +#define Py_NewRef(obj) _Py_NewRef(_PyObject_CAST(obj)) +#endif + + +// bpo-42262 added Py_XNewRef() to Python 3.10.0a3 +#if PY_VERSION_HEX < 0x030A00A3 && !defined(Py_XNewRef) +static inline PyObject* _Py_XNewRef(PyObject *obj) +{ + Py_XINCREF(obj); + return obj; +} +#define Py_XNewRef(obj) _Py_XNewRef(_PyObject_CAST(obj)) +#endif + + +// bpo-39573 added Py_SET_REFCNT() to Python 3.9.0a4 +#if PY_VERSION_HEX < 0x030900A4 && !defined(Py_SET_REFCNT) +static inline void _Py_SET_REFCNT(PyObject *ob, Py_ssize_t refcnt) +{ + ob->ob_refcnt = refcnt; +} +#define Py_SET_REFCNT(ob, refcnt) _Py_SET_REFCNT(_PyObject_CAST(ob), refcnt) +#endif + + +// Py_SETREF() and Py_XSETREF() were added to Python 3.5.2. +// It is excluded from the limited C API. +#if (PY_VERSION_HEX < 0x03050200 && !defined(Py_SETREF)) && !defined(Py_LIMITED_API) +#define Py_SETREF(dst, src) \ + do { \ + PyObject **_tmp_dst_ptr = _Py_CAST(PyObject**, &(dst)); \ + PyObject *_tmp_dst = (*_tmp_dst_ptr); \ + *_tmp_dst_ptr = _PyObject_CAST(src); \ + Py_DECREF(_tmp_dst); \ + } while (0) + +#define Py_XSETREF(dst, src) \ + do { \ + PyObject **_tmp_dst_ptr = _Py_CAST(PyObject**, &(dst)); \ + PyObject *_tmp_dst = (*_tmp_dst_ptr); \ + *_tmp_dst_ptr = _PyObject_CAST(src); \ + Py_XDECREF(_tmp_dst); \ + } while (0) +#endif + + +// bpo-43753 added Py_Is(), Py_IsNone(), Py_IsTrue() and Py_IsFalse() +// to Python 3.10.0b1. +#if PY_VERSION_HEX < 0x030A00B1 && !defined(Py_Is) +# define Py_Is(x, y) ((x) == (y)) +#endif +#if PY_VERSION_HEX < 0x030A00B1 && !defined(Py_IsNone) +# define Py_IsNone(x) Py_Is(x, Py_None) +#endif +#if (PY_VERSION_HEX < 0x030A00B1 || defined(PYPY_VERSION)) && !defined(Py_IsTrue) +# define Py_IsTrue(x) Py_Is(x, Py_True) +#endif +#if (PY_VERSION_HEX < 0x030A00B1 || defined(PYPY_VERSION)) && !defined(Py_IsFalse) +# define Py_IsFalse(x) Py_Is(x, Py_False) +#endif + + +// bpo-39573 added Py_SET_TYPE() to Python 3.9.0a4 +#if PY_VERSION_HEX < 0x030900A4 && !defined(Py_SET_TYPE) +static inline void _Py_SET_TYPE(PyObject *ob, PyTypeObject *type) +{ + ob->ob_type = type; +} +#define Py_SET_TYPE(ob, type) _Py_SET_TYPE(_PyObject_CAST(ob), type) +#endif + + +// bpo-39573 added Py_SET_SIZE() to Python 3.9.0a4 +#if PY_VERSION_HEX < 0x030900A4 && !defined(Py_SET_SIZE) +static inline void _Py_SET_SIZE(PyVarObject *ob, Py_ssize_t size) +{ + ob->ob_size = size; +} +#define Py_SET_SIZE(ob, size) _Py_SET_SIZE((PyVarObject*)(ob), size) +#endif + + +// bpo-40421 added PyFrame_GetCode() to Python 3.9.0b1 +#if PY_VERSION_HEX < 0x030900B1 || defined(PYPY_VERSION) +static inline PyCodeObject* PyFrame_GetCode(PyFrameObject *frame) +{ + assert(frame != _Py_NULL); + assert(frame->f_code != _Py_NULL); + return _Py_CAST(PyCodeObject*, Py_NewRef(frame->f_code)); +} +#endif + +static inline PyCodeObject* _PyFrame_GetCodeBorrow(PyFrameObject *frame) +{ + PyCodeObject *code = PyFrame_GetCode(frame); + Py_DECREF(code); + return code; +} + + +// bpo-40421 added PyFrame_GetBack() to Python 3.9.0b1 +#if PY_VERSION_HEX < 0x030900B1 && !defined(PYPY_VERSION) +static inline PyFrameObject* PyFrame_GetBack(PyFrameObject *frame) +{ + assert(frame != _Py_NULL); + return _Py_CAST(PyFrameObject*, Py_XNewRef(frame->f_back)); +} +#endif + +#if !defined(PYPY_VERSION) +static inline PyFrameObject* _PyFrame_GetBackBorrow(PyFrameObject *frame) +{ + PyFrameObject *back = PyFrame_GetBack(frame); + Py_XDECREF(back); + return back; +} +#endif + + +// bpo-40421 added PyFrame_GetLocals() to Python 3.11.0a7 +#if PY_VERSION_HEX < 0x030B00A7 && !defined(PYPY_VERSION) +static inline PyObject* PyFrame_GetLocals(PyFrameObject *frame) +{ +#if PY_VERSION_HEX >= 0x030400B1 + if (PyFrame_FastToLocalsWithError(frame) < 0) { + return NULL; + } +#else + PyFrame_FastToLocals(frame); +#endif + return Py_NewRef(frame->f_locals); +} +#endif + + +// bpo-40421 added PyFrame_GetGlobals() to Python 3.11.0a7 +#if PY_VERSION_HEX < 0x030B00A7 && !defined(PYPY_VERSION) +static inline PyObject* PyFrame_GetGlobals(PyFrameObject *frame) +{ + return Py_NewRef(frame->f_globals); +} +#endif + + +// bpo-40421 added PyFrame_GetBuiltins() to Python 3.11.0a7 +#if PY_VERSION_HEX < 0x030B00A7 && !defined(PYPY_VERSION) +static inline PyObject* PyFrame_GetBuiltins(PyFrameObject *frame) +{ + return Py_NewRef(frame->f_builtins); +} +#endif + + +// bpo-40421 added PyFrame_GetLasti() to Python 3.11.0b1 +#if PY_VERSION_HEX < 0x030B00B1 && !defined(PYPY_VERSION) +static inline int PyFrame_GetLasti(PyFrameObject *frame) +{ +#if PY_VERSION_HEX >= 0x030A00A7 + // bpo-27129: Since Python 3.10.0a7, f_lasti is an instruction offset, + // not a bytes offset anymore. Python uses 16-bit "wordcode" (2 bytes) + // instructions. + if (frame->f_lasti < 0) { + return -1; + } + return frame->f_lasti * 2; +#else + return frame->f_lasti; +#endif +} +#endif + + +// gh-91248 added PyFrame_GetVar() to Python 3.12.0a2 +#if PY_VERSION_HEX < 0x030C00A2 && !defined(PYPY_VERSION) +static inline PyObject* PyFrame_GetVar(PyFrameObject *frame, PyObject *name) +{ + PyObject *locals, *value; + + locals = PyFrame_GetLocals(frame); + if (locals == NULL) { + return NULL; + } +#if PY_VERSION_HEX >= 0x03000000 + value = PyDict_GetItemWithError(locals, name); +#else + value = _PyDict_GetItemWithError(locals, name); +#endif + Py_DECREF(locals); + + if (value == NULL) { + if (PyErr_Occurred()) { + return NULL; + } +#if PY_VERSION_HEX >= 0x03000000 + PyErr_Format(PyExc_NameError, "variable %R does not exist", name); +#else + PyErr_SetString(PyExc_NameError, "variable does not exist"); +#endif + return NULL; + } + return Py_NewRef(value); +} +#endif + + +// gh-91248 added PyFrame_GetVarString() to Python 3.12.0a2 +#if PY_VERSION_HEX < 0x030C00A2 && !defined(PYPY_VERSION) +static inline PyObject* +PyFrame_GetVarString(PyFrameObject *frame, const char *name) +{ + PyObject *name_obj, *value; +#if PY_VERSION_HEX >= 0x03000000 + name_obj = PyUnicode_FromString(name); +#else + name_obj = PyString_FromString(name); +#endif + if (name_obj == NULL) { + return NULL; + } + value = PyFrame_GetVar(frame, name_obj); + Py_DECREF(name_obj); + return value; +} +#endif + + +// bpo-39947 added PyThreadState_GetInterpreter() to Python 3.9.0a5 +#if PY_VERSION_HEX < 0x030900A5 || defined(PYPY_VERSION) +static inline PyInterpreterState * +PyThreadState_GetInterpreter(PyThreadState *tstate) +{ + assert(tstate != _Py_NULL); + return tstate->interp; +} +#endif + + +// bpo-40429 added PyThreadState_GetFrame() to Python 3.9.0b1 +#if PY_VERSION_HEX < 0x030900B1 && !defined(PYPY_VERSION) +static inline PyFrameObject* PyThreadState_GetFrame(PyThreadState *tstate) +{ + assert(tstate != _Py_NULL); + return _Py_CAST(PyFrameObject *, Py_XNewRef(tstate->frame)); +} +#endif + +#if !defined(PYPY_VERSION) +static inline PyFrameObject* +_PyThreadState_GetFrameBorrow(PyThreadState *tstate) +{ + PyFrameObject *frame = PyThreadState_GetFrame(tstate); + Py_XDECREF(frame); + return frame; +} +#endif + + +// bpo-39947 added PyInterpreterState_Get() to Python 3.9.0a5 +#if PY_VERSION_HEX < 0x030900A5 || defined(PYPY_VERSION) +static inline PyInterpreterState* PyInterpreterState_Get(void) +{ + PyThreadState *tstate; + PyInterpreterState *interp; + + tstate = PyThreadState_GET(); + if (tstate == _Py_NULL) { + Py_FatalError("GIL released (tstate is NULL)"); + } + interp = tstate->interp; + if (interp == _Py_NULL) { + Py_FatalError("no current interpreter"); + } + return interp; +} +#endif + + +// bpo-39947 added PyInterpreterState_Get() to Python 3.9.0a6 +#if 0x030700A1 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x030900A6 && !defined(PYPY_VERSION) +static inline uint64_t PyThreadState_GetID(PyThreadState *tstate) +{ + assert(tstate != _Py_NULL); + return tstate->id; +} +#endif + +// bpo-43760 added PyThreadState_EnterTracing() to Python 3.11.0a2 +#if PY_VERSION_HEX < 0x030B00A2 && !defined(PYPY_VERSION) +static inline void PyThreadState_EnterTracing(PyThreadState *tstate) +{ + tstate->tracing++; +#if PY_VERSION_HEX >= 0x030A00A1 + tstate->cframe->use_tracing = 0; +#else + tstate->use_tracing = 0; +#endif +} +#endif + +// bpo-43760 added PyThreadState_LeaveTracing() to Python 3.11.0a2 +#if PY_VERSION_HEX < 0x030B00A2 && !defined(PYPY_VERSION) +static inline void PyThreadState_LeaveTracing(PyThreadState *tstate) +{ + int use_tracing = (tstate->c_tracefunc != _Py_NULL + || tstate->c_profilefunc != _Py_NULL); + tstate->tracing--; +#if PY_VERSION_HEX >= 0x030A00A1 + tstate->cframe->use_tracing = use_tracing; +#else + tstate->use_tracing = use_tracing; +#endif +} +#endif + + +// bpo-37194 added PyObject_CallNoArgs() to Python 3.9.0a1 +// PyObject_CallNoArgs() added to PyPy 3.9.16-v7.3.11 +#if !defined(PyObject_CallNoArgs) && PY_VERSION_HEX < 0x030900A1 +static inline PyObject* PyObject_CallNoArgs(PyObject *func) +{ + return PyObject_CallFunctionObjArgs(func, NULL); +} +#endif + + +// bpo-39245 made PyObject_CallOneArg() public (previously called +// _PyObject_CallOneArg) in Python 3.9.0a4 +// PyObject_CallOneArg() added to PyPy 3.9.16-v7.3.11 +#if !defined(PyObject_CallOneArg) && PY_VERSION_HEX < 0x030900A4 +static inline PyObject* PyObject_CallOneArg(PyObject *func, PyObject *arg) +{ + return PyObject_CallFunctionObjArgs(func, arg, NULL); +} +#endif + + +// bpo-1635741 added PyModule_AddObjectRef() to Python 3.10.0a3 +#if PY_VERSION_HEX < 0x030A00A3 +static inline int +PyModule_AddObjectRef(PyObject *module, const char *name, PyObject *value) +{ + int res; + + if (!value && !PyErr_Occurred()) { + // PyModule_AddObject() raises TypeError in this case + PyErr_SetString(PyExc_SystemError, + "PyModule_AddObjectRef() must be called " + "with an exception raised if value is NULL"); + return -1; + } + + Py_XINCREF(value); + res = PyModule_AddObject(module, name, value); + if (res < 0) { + Py_XDECREF(value); + } + return res; +} +#endif + + +// bpo-40024 added PyModule_AddType() to Python 3.9.0a5 +#if PY_VERSION_HEX < 0x030900A5 +static inline int PyModule_AddType(PyObject *module, PyTypeObject *type) +{ + const char *name, *dot; + + if (PyType_Ready(type) < 0) { + return -1; + } + + // inline _PyType_Name() + name = type->tp_name; + assert(name != _Py_NULL); + dot = strrchr(name, '.'); + if (dot != _Py_NULL) { + name = dot + 1; + } + + return PyModule_AddObjectRef(module, name, _PyObject_CAST(type)); +} +#endif + + +// bpo-40241 added PyObject_GC_IsTracked() to Python 3.9.0a6. +// bpo-4688 added _PyObject_GC_IS_TRACKED() to Python 2.7.0a2. +#if PY_VERSION_HEX < 0x030900A6 && !defined(PYPY_VERSION) +static inline int PyObject_GC_IsTracked(PyObject* obj) +{ + return (PyObject_IS_GC(obj) && _PyObject_GC_IS_TRACKED(obj)); +} +#endif + +// bpo-40241 added PyObject_GC_IsFinalized() to Python 3.9.0a6. +// bpo-18112 added _PyGCHead_FINALIZED() to Python 3.4.0 final. +#if PY_VERSION_HEX < 0x030900A6 && PY_VERSION_HEX >= 0x030400F0 && !defined(PYPY_VERSION) +static inline int PyObject_GC_IsFinalized(PyObject *obj) +{ + PyGC_Head *gc = _Py_CAST(PyGC_Head*, obj) - 1; + return (PyObject_IS_GC(obj) && _PyGCHead_FINALIZED(gc)); +} +#endif + + +// bpo-39573 added Py_IS_TYPE() to Python 3.9.0a4 +#if PY_VERSION_HEX < 0x030900A4 && !defined(Py_IS_TYPE) +static inline int _Py_IS_TYPE(PyObject *ob, PyTypeObject *type) { + return Py_TYPE(ob) == type; +} +#define Py_IS_TYPE(ob, type) _Py_IS_TYPE(_PyObject_CAST(ob), type) +#endif + + +// bpo-46906 added PyFloat_Pack2() and PyFloat_Unpack2() to Python 3.11a7. +// bpo-11734 added _PyFloat_Pack2() and _PyFloat_Unpack2() to Python 3.6.0b1. +// Python 3.11a2 moved _PyFloat_Pack2() and _PyFloat_Unpack2() to the internal +// C API: Python 3.11a2-3.11a6 versions are not supported. +#if 0x030600B1 <= PY_VERSION_HEX && PY_VERSION_HEX <= 0x030B00A1 && !defined(PYPY_VERSION) +static inline int PyFloat_Pack2(double x, char *p, int le) +{ return _PyFloat_Pack2(x, (unsigned char*)p, le); } + +static inline double PyFloat_Unpack2(const char *p, int le) +{ return _PyFloat_Unpack2((const unsigned char *)p, le); } +#endif + + +// bpo-46906 added PyFloat_Pack4(), PyFloat_Pack8(), PyFloat_Unpack4() and +// PyFloat_Unpack8() to Python 3.11a7. +// Python 3.11a2 moved _PyFloat_Pack4(), _PyFloat_Pack8(), _PyFloat_Unpack4() +// and _PyFloat_Unpack8() to the internal C API: Python 3.11a2-3.11a6 versions +// are not supported. +#if PY_VERSION_HEX <= 0x030B00A1 && !defined(PYPY_VERSION) +static inline int PyFloat_Pack4(double x, char *p, int le) +{ return _PyFloat_Pack4(x, (unsigned char*)p, le); } + +static inline int PyFloat_Pack8(double x, char *p, int le) +{ return _PyFloat_Pack8(x, (unsigned char*)p, le); } + +static inline double PyFloat_Unpack4(const char *p, int le) +{ return _PyFloat_Unpack4((const unsigned char *)p, le); } + +static inline double PyFloat_Unpack8(const char *p, int le) +{ return _PyFloat_Unpack8((const unsigned char *)p, le); } +#endif + + +// gh-92154 added PyCode_GetCode() to Python 3.11.0b1 +#if PY_VERSION_HEX < 0x030B00B1 && !defined(PYPY_VERSION) +static inline PyObject* PyCode_GetCode(PyCodeObject *code) +{ + return Py_NewRef(code->co_code); +} +#endif + + +// gh-95008 added PyCode_GetVarnames() to Python 3.11.0rc1 +#if PY_VERSION_HEX < 0x030B00C1 && !defined(PYPY_VERSION) +static inline PyObject* PyCode_GetVarnames(PyCodeObject *code) +{ + return Py_NewRef(code->co_varnames); +} +#endif + +// gh-95008 added PyCode_GetFreevars() to Python 3.11.0rc1 +#if PY_VERSION_HEX < 0x030B00C1 && !defined(PYPY_VERSION) +static inline PyObject* PyCode_GetFreevars(PyCodeObject *code) +{ + return Py_NewRef(code->co_freevars); +} +#endif + +// gh-95008 added PyCode_GetCellvars() to Python 3.11.0rc1 +#if PY_VERSION_HEX < 0x030B00C1 && !defined(PYPY_VERSION) +static inline PyObject* PyCode_GetCellvars(PyCodeObject *code) +{ + return Py_NewRef(code->co_cellvars); +} +#endif + + +// Py_UNUSED() was added to Python 3.4.0b2. +#if PY_VERSION_HEX < 0x030400B2 && !defined(Py_UNUSED) +# if defined(__GNUC__) || defined(__clang__) +# define Py_UNUSED(name) _unused_ ## name __attribute__((unused)) +# else +# define Py_UNUSED(name) _unused_ ## name +# endif +#endif + + +// gh-105922 added PyImport_AddModuleRef() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A0 +static inline PyObject* PyImport_AddModuleRef(const char *name) +{ + return Py_XNewRef(PyImport_AddModule(name)); +} +#endif + + +// gh-105927 added PyWeakref_GetRef() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D0000 +static inline int PyWeakref_GetRef(PyObject *ref, PyObject **pobj) +{ + PyObject *obj; + if (ref != NULL && !PyWeakref_Check(ref)) { + *pobj = NULL; + PyErr_SetString(PyExc_TypeError, "expected a weakref"); + return -1; + } + obj = PyWeakref_GetObject(ref); + if (obj == NULL) { + // SystemError if ref is NULL + *pobj = NULL; + return -1; + } + if (obj == Py_None) { + *pobj = NULL; + return 0; + } + *pobj = Py_NewRef(obj); + return (*pobj != NULL); +} +#endif + + +// bpo-36974 added PY_VECTORCALL_ARGUMENTS_OFFSET to Python 3.8b1 +#ifndef PY_VECTORCALL_ARGUMENTS_OFFSET +# define PY_VECTORCALL_ARGUMENTS_OFFSET (_Py_CAST(size_t, 1) << (8 * sizeof(size_t) - 1)) +#endif + +// bpo-36974 added PyVectorcall_NARGS() to Python 3.8b1 +#if PY_VERSION_HEX < 0x030800B1 +static inline Py_ssize_t PyVectorcall_NARGS(size_t n) +{ + return n & ~PY_VECTORCALL_ARGUMENTS_OFFSET; +} +#endif + + +// gh-105922 added PyObject_Vectorcall() to Python 3.9.0a4 +#if PY_VERSION_HEX < 0x030900A4 +static inline PyObject* +PyObject_Vectorcall(PyObject *callable, PyObject *const *args, + size_t nargsf, PyObject *kwnames) +{ +#if PY_VERSION_HEX >= 0x030800B1 && !defined(PYPY_VERSION) + // bpo-36974 added _PyObject_Vectorcall() to Python 3.8.0b1 + return _PyObject_Vectorcall(callable, args, nargsf, kwnames); +#else + PyObject *posargs = NULL, *kwargs = NULL; + PyObject *res; + Py_ssize_t nposargs, nkwargs, i; + + if (nargsf != 0 && args == NULL) { + PyErr_BadInternalCall(); + goto error; + } + if (kwnames != NULL && !PyTuple_Check(kwnames)) { + PyErr_BadInternalCall(); + goto error; + } + + nposargs = (Py_ssize_t)PyVectorcall_NARGS(nargsf); + if (kwnames) { + nkwargs = PyTuple_GET_SIZE(kwnames); + } + else { + nkwargs = 0; + } + + posargs = PyTuple_New(nposargs); + if (posargs == NULL) { + goto error; + } + if (nposargs) { + for (i=0; i < nposargs; i++) { + PyTuple_SET_ITEM(posargs, i, Py_NewRef(*args)); + args++; + } + } + + if (nkwargs) { + kwargs = PyDict_New(); + if (kwargs == NULL) { + goto error; + } + + for (i = 0; i < nkwargs; i++) { + PyObject *key = PyTuple_GET_ITEM(kwnames, i); + PyObject *value = *args; + args++; + if (PyDict_SetItem(kwargs, key, value) < 0) { + goto error; + } + } + } + else { + kwargs = NULL; + } + + res = PyObject_Call(callable, posargs, kwargs); + Py_DECREF(posargs); + Py_XDECREF(kwargs); + return res; + +error: + Py_DECREF(posargs); + Py_XDECREF(kwargs); + return NULL; +#endif +} +#endif + + +// gh-106521 added PyObject_GetOptionalAttr() and +// PyObject_GetOptionalAttrString() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int +PyObject_GetOptionalAttr(PyObject *obj, PyObject *attr_name, PyObject **result) +{ + // bpo-32571 added _PyObject_LookupAttr() to Python 3.7.0b1 +#if PY_VERSION_HEX >= 0x030700B1 && !defined(PYPY_VERSION) + return _PyObject_LookupAttr(obj, attr_name, result); +#else + *result = PyObject_GetAttr(obj, attr_name); + if (*result != NULL) { + return 1; + } + if (!PyErr_Occurred()) { + return 0; + } + if (PyErr_ExceptionMatches(PyExc_AttributeError)) { + PyErr_Clear(); + return 0; + } + return -1; +#endif +} + +static inline int +PyObject_GetOptionalAttrString(PyObject *obj, const char *attr_name, PyObject **result) +{ + PyObject *name_obj; + int rc; +#if PY_VERSION_HEX >= 0x03000000 + name_obj = PyUnicode_FromString(attr_name); +#else + name_obj = PyString_FromString(attr_name); +#endif + if (name_obj == NULL) { + *result = NULL; + return -1; + } + rc = PyObject_GetOptionalAttr(obj, name_obj, result); + Py_DECREF(name_obj); + return rc; +} +#endif + + +// gh-106307 added PyObject_GetOptionalAttr() and +// PyMapping_GetOptionalItemString() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int +PyMapping_GetOptionalItem(PyObject *obj, PyObject *key, PyObject **result) +{ + *result = PyObject_GetItem(obj, key); + if (*result) { + return 1; + } + if (!PyErr_ExceptionMatches(PyExc_KeyError)) { + return -1; + } + PyErr_Clear(); + return 0; +} + +static inline int +PyMapping_GetOptionalItemString(PyObject *obj, const char *key, PyObject **result) +{ + PyObject *key_obj; + int rc; +#if PY_VERSION_HEX >= 0x03000000 + key_obj = PyUnicode_FromString(key); +#else + key_obj = PyString_FromString(key); +#endif + if (key_obj == NULL) { + *result = NULL; + return -1; + } + rc = PyMapping_GetOptionalItem(obj, key_obj, result); + Py_DECREF(key_obj); + return rc; +} +#endif + +// gh-108511 added PyMapping_HasKeyWithError() and +// PyMapping_HasKeyStringWithError() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int +PyMapping_HasKeyWithError(PyObject *obj, PyObject *key) +{ + PyObject *res; + int rc = PyMapping_GetOptionalItem(obj, key, &res); + Py_XDECREF(res); + return rc; +} + +static inline int +PyMapping_HasKeyStringWithError(PyObject *obj, const char *key) +{ + PyObject *res; + int rc = PyMapping_GetOptionalItemString(obj, key, &res); + Py_XDECREF(res); + return rc; +} +#endif + + +// gh-108511 added PyObject_HasAttrWithError() and +// PyObject_HasAttrStringWithError() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int +PyObject_HasAttrWithError(PyObject *obj, PyObject *attr) +{ + PyObject *res; + int rc = PyObject_GetOptionalAttr(obj, attr, &res); + Py_XDECREF(res); + return rc; +} + +static inline int +PyObject_HasAttrStringWithError(PyObject *obj, const char *attr) +{ + PyObject *res; + int rc = PyObject_GetOptionalAttrString(obj, attr, &res); + Py_XDECREF(res); + return rc; +} +#endif + + +// gh-106004 added PyDict_GetItemRef() and PyDict_GetItemStringRef() +// to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int +PyDict_GetItemRef(PyObject *mp, PyObject *key, PyObject **result) +{ +#if PY_VERSION_HEX >= 0x03000000 + PyObject *item = PyDict_GetItemWithError(mp, key); +#else + PyObject *item = _PyDict_GetItemWithError(mp, key); +#endif + if (item != NULL) { + *result = Py_NewRef(item); + return 1; // found + } + if (!PyErr_Occurred()) { + *result = NULL; + return 0; // not found + } + *result = NULL; + return -1; +} + +static inline int +PyDict_GetItemStringRef(PyObject *mp, const char *key, PyObject **result) +{ + int res; +#if PY_VERSION_HEX >= 0x03000000 + PyObject *key_obj = PyUnicode_FromString(key); +#else + PyObject *key_obj = PyString_FromString(key); +#endif + if (key_obj == NULL) { + *result = NULL; + return -1; + } + res = PyDict_GetItemRef(mp, key_obj, result); + Py_DECREF(key_obj); + return res; +} +#endif + + +// gh-106307 added PyModule_Add() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int +PyModule_Add(PyObject *mod, const char *name, PyObject *value) +{ + int res = PyModule_AddObjectRef(mod, name, value); + Py_XDECREF(value); + return res; +} +#endif + + +// gh-108014 added Py_IsFinalizing() to Python 3.13.0a1 +// bpo-1856 added _Py_Finalizing to Python 3.2.1b1. +// _Py_IsFinalizing() was added to PyPy 7.3.0. +#if (0x030201B1 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x030D00A1) \ + && (!defined(PYPY_VERSION_NUM) || PYPY_VERSION_NUM >= 0x7030000) +static inline int Py_IsFinalizing(void) +{ +#if PY_VERSION_HEX >= 0x030700A1 + // _Py_IsFinalizing() was added to Python 3.7.0a1. + return _Py_IsFinalizing(); +#else + return (_Py_Finalizing != NULL); +#endif +} +#endif + + +// gh-108323 added PyDict_ContainsString() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int PyDict_ContainsString(PyObject *op, const char *key) +{ + PyObject *key_obj = PyUnicode_FromString(key); + if (key_obj == NULL) { + return -1; + } + int res = PyDict_Contains(op, key_obj); + Py_DECREF(key_obj); + return res; +} +#endif + + +// gh-108445 added PyLong_AsInt() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int PyLong_AsInt(PyObject *obj) +{ +#ifdef PYPY_VERSION + long value = PyLong_AsLong(obj); + if (value == -1 && PyErr_Occurred()) { + return -1; + } + if (value < (long)INT_MIN || (long)INT_MAX < value) { + PyErr_SetString(PyExc_OverflowError, + "Python int too large to convert to C int"); + return -1; + } + return (int)value; +#else + return _PyLong_AsInt(obj); +#endif +} +#endif + + +// gh-107073 added PyObject_VisitManagedDict() to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int +PyObject_VisitManagedDict(PyObject *obj, visitproc visit, void *arg) +{ + PyObject **dict = _PyObject_GetDictPtr(obj); + if (*dict == NULL) { + return -1; + } + Py_VISIT(*dict); + return 0; +} + +static inline void +PyObject_ClearManagedDict(PyObject *obj) +{ + PyObject **dict = _PyObject_GetDictPtr(obj); + if (*dict == NULL) { + return; + } + Py_CLEAR(*dict); +} +#endif + +// gh-108867 added PyThreadState_GetUnchecked() to Python 3.13.0a1 +// Python 3.5.2 added _PyThreadState_UncheckedGet(). +#if PY_VERSION_HEX >= 0x03050200 && PY_VERSION_HEX < 0x030D00A1 +static inline PyThreadState* +PyThreadState_GetUnchecked(void) +{ + return _PyThreadState_UncheckedGet(); +} +#endif + +// gh-110289 added PyUnicode_EqualToUTF8() and PyUnicode_EqualToUTF8AndSize() +// to Python 3.13.0a1 +#if PY_VERSION_HEX < 0x030D00A1 +static inline int +PyUnicode_EqualToUTF8AndSize(PyObject *unicode, const char *str, Py_ssize_t str_len) +{ + Py_ssize_t len; + const void *utf8; + PyObject *exc_type, *exc_value, *exc_tb; + int res; + + // API cannot report errors so save/restore the exception + PyErr_Fetch(&exc_type, &exc_value, &exc_tb); + + // Python 3.3.0a1 added PyUnicode_AsUTF8AndSize() +#if PY_VERSION_HEX >= 0x030300A1 + if (PyUnicode_IS_ASCII(unicode)) { + utf8 = PyUnicode_DATA(unicode); + len = PyUnicode_GET_LENGTH(unicode); + } + else { + utf8 = PyUnicode_AsUTF8AndSize(unicode, &len); + if (utf8 == NULL) { + // Memory allocation failure. The API cannot report error, + // so ignore the exception and return 0. + res = 0; + goto done; + } + } + + if (len != str_len) { + res = 0; + goto done; + } + res = (memcmp(utf8, str, (size_t)len) == 0); +#else + PyObject *bytes = PyUnicode_AsUTF8String(unicode); + if (bytes == NULL) { + // Memory allocation failure. The API cannot report error, + // so ignore the exception and return 0. + res = 0; + goto done; + } + +#if PY_VERSION_HEX >= 0x03000000 + len = PyBytes_GET_SIZE(bytes); + utf8 = PyBytes_AS_STRING(bytes); +#else + len = PyString_GET_SIZE(bytes); + utf8 = PyString_AS_STRING(bytes); +#endif + if (len != str_len) { + Py_DECREF(bytes); + res = 0; + goto done; + } + + res = (memcmp(utf8, str, (size_t)len) == 0); + Py_DECREF(bytes); +#endif + +done: + PyErr_Restore(exc_type, exc_value, exc_tb); + return res; +} + +static inline int +PyUnicode_EqualToUTF8(PyObject *unicode, const char *str) +{ + return PyUnicode_EqualToUTF8AndSize(unicode, str, (Py_ssize_t)strlen(str)); +} +#endif + + +// gh-111138 added PyList_Extend() and PyList_Clear() to Python 3.13.0a2 +#if PY_VERSION_HEX < 0x030D00A2 +static inline int +PyList_Extend(PyObject *list, PyObject *iterable) +{ + return PyList_SetSlice(list, PY_SSIZE_T_MAX, PY_SSIZE_T_MAX, iterable); +} + +static inline int +PyList_Clear(PyObject *list) +{ + return PyList_SetSlice(list, 0, PY_SSIZE_T_MAX, NULL); +} +#endif + +// gh-111262 added PyDict_Pop() and PyDict_PopString() to Python 3.13.0a2 +#if PY_VERSION_HEX < 0x030D00A2 +static inline int +PyDict_Pop(PyObject *dict, PyObject *key, PyObject **result) +{ + PyObject *value; + + if (!PyDict_Check(dict)) { + PyErr_BadInternalCall(); + if (result) { + *result = NULL; + } + return -1; + } + + // bpo-16991 added _PyDict_Pop() to Python 3.5.0b2. + // Python 3.6.0b3 changed _PyDict_Pop() first argument type to PyObject*. + // Python 3.13.0a1 removed _PyDict_Pop(). +#if defined(PYPY_VERSION) || PY_VERSION_HEX < 0x030500b2 || PY_VERSION_HEX >= 0x030D0000 + value = PyObject_CallMethod(dict, "pop", "O", key); +#elif PY_VERSION_HEX < 0x030600b3 + value = _PyDict_Pop(_Py_CAST(PyDictObject*, dict), key, NULL); +#else + value = _PyDict_Pop(dict, key, NULL); +#endif + if (value == NULL) { + if (result) { + *result = NULL; + } + if (PyErr_Occurred() && !PyErr_ExceptionMatches(PyExc_KeyError)) { + return -1; + } + PyErr_Clear(); + return 0; + } + if (result) { + *result = value; + } + else { + Py_DECREF(value); + } + return 1; +} + +static inline int +PyDict_PopString(PyObject *dict, const char *key, PyObject **result) +{ + PyObject *key_obj = PyUnicode_FromString(key); + if (key_obj == NULL) { + if (result != NULL) { + *result = NULL; + } + return -1; + } + + int res = PyDict_Pop(dict, key_obj, result); + Py_DECREF(key_obj); + return res; +} +#endif + + +#if PY_VERSION_HEX < 0x030200A4 +// Python 3.2.0a4 added Py_hash_t type +typedef Py_ssize_t Py_hash_t; +#endif + + +// gh-111545 added Py_HashPointer() to Python 3.13.0a3 +#if PY_VERSION_HEX < 0x030D00A3 +static inline Py_hash_t Py_HashPointer(const void *ptr) +{ +#if PY_VERSION_HEX >= 0x030900A4 && !defined(PYPY_VERSION) + return _Py_HashPointer(ptr); +#else + return _Py_HashPointer(_Py_CAST(void*, ptr)); +#endif +} +#endif + + +// Python 3.13a4 added a PyTime API. +// Use the private API added to Python 3.5. +#if PY_VERSION_HEX < 0x030D00A4 && PY_VERSION_HEX >= 0x03050000 +typedef _PyTime_t PyTime_t; +#define PyTime_MIN _PyTime_MIN +#define PyTime_MAX _PyTime_MAX + +static inline double PyTime_AsSecondsDouble(PyTime_t t) +{ return _PyTime_AsSecondsDouble(t); } + +static inline int PyTime_Monotonic(PyTime_t *result) +{ return _PyTime_GetMonotonicClockWithInfo(result, NULL); } + +static inline int PyTime_Time(PyTime_t *result) +{ return _PyTime_GetSystemClockWithInfo(result, NULL); } + +static inline int PyTime_PerfCounter(PyTime_t *result) +{ +#if PY_VERSION_HEX >= 0x03070000 && !defined(PYPY_VERSION) + return _PyTime_GetPerfCounterWithInfo(result, NULL); +#elif PY_VERSION_HEX >= 0x03070000 + // Call time.perf_counter_ns() and convert Python int object to PyTime_t. + // Cache time.perf_counter_ns() function for best performance. + static PyObject *func = NULL; + if (func == NULL) { + PyObject *mod = PyImport_ImportModule("time"); + if (mod == NULL) { + return -1; + } + + func = PyObject_GetAttrString(mod, "perf_counter_ns"); + Py_DECREF(mod); + if (func == NULL) { + return -1; + } + } + + PyObject *res = PyObject_CallNoArgs(func); + if (res == NULL) { + return -1; + } + long long value = PyLong_AsLongLong(res); + Py_DECREF(res); + + if (value == -1 && PyErr_Occurred()) { + return -1; + } + + Py_BUILD_ASSERT(sizeof(value) >= sizeof(PyTime_t)); + *result = (PyTime_t)value; + return 0; +#else + // Call time.perf_counter() and convert C double to PyTime_t. + // Cache time.perf_counter() function for best performance. + static PyObject *func = NULL; + if (func == NULL) { + PyObject *mod = PyImport_ImportModule("time"); + if (mod == NULL) { + return -1; + } + + func = PyObject_GetAttrString(mod, "perf_counter"); + Py_DECREF(mod); + if (func == NULL) { + return -1; + } + } + + PyObject *res = PyObject_CallNoArgs(func); + if (res == NULL) { + return -1; + } + double d = PyFloat_AsDouble(res); + Py_DECREF(res); + + if (d == -1.0 && PyErr_Occurred()) { + return -1; + } + + // Avoid floor() to avoid having to link to libm + *result = (PyTime_t)(d * 1e9); + return 0; +#endif +} + +#endif + +// gh-111389 added hash constants to Python 3.13.0a5. These constants were +// added first as private macros to Python 3.4.0b1 and PyPy 7.3.9. +#if (!defined(PyHASH_BITS) \ + && ((!defined(PYPY_VERSION) && PY_VERSION_HEX >= 0x030400B1) \ + || (defined(PYPY_VERSION) && PY_VERSION_HEX >= 0x03070000 \ + && PYPY_VERSION_NUM >= 0x07090000))) +# define PyHASH_BITS _PyHASH_BITS +# define PyHASH_MODULUS _PyHASH_MODULUS +# define PyHASH_INF _PyHASH_INF +# define PyHASH_IMAG _PyHASH_IMAG +#endif + + +// gh-111545 added Py_GetConstant() and Py_GetConstantBorrowed() +// to Python 3.13.0a6 +#if PY_VERSION_HEX < 0x030D00A6 && !defined(Py_CONSTANT_NONE) + +#define Py_CONSTANT_NONE 0 +#define Py_CONSTANT_FALSE 1 +#define Py_CONSTANT_TRUE 2 +#define Py_CONSTANT_ELLIPSIS 3 +#define Py_CONSTANT_NOT_IMPLEMENTED 4 +#define Py_CONSTANT_ZERO 5 +#define Py_CONSTANT_ONE 6 +#define Py_CONSTANT_EMPTY_STR 7 +#define Py_CONSTANT_EMPTY_BYTES 8 +#define Py_CONSTANT_EMPTY_TUPLE 9 + +static inline PyObject* Py_GetConstant(unsigned int constant_id) +{ + static PyObject* constants[Py_CONSTANT_EMPTY_TUPLE + 1] = {NULL}; + + if (constants[Py_CONSTANT_NONE] == NULL) { + constants[Py_CONSTANT_NONE] = Py_None; + constants[Py_CONSTANT_FALSE] = Py_False; + constants[Py_CONSTANT_TRUE] = Py_True; + constants[Py_CONSTANT_ELLIPSIS] = Py_Ellipsis; + constants[Py_CONSTANT_NOT_IMPLEMENTED] = Py_NotImplemented; + + constants[Py_CONSTANT_ZERO] = PyLong_FromLong(0); + if (constants[Py_CONSTANT_ZERO] == NULL) { + goto fatal_error; + } + + constants[Py_CONSTANT_ONE] = PyLong_FromLong(1); + if (constants[Py_CONSTANT_ONE] == NULL) { + goto fatal_error; + } + + constants[Py_CONSTANT_EMPTY_STR] = PyUnicode_FromStringAndSize("", 0); + if (constants[Py_CONSTANT_EMPTY_STR] == NULL) { + goto fatal_error; + } + + constants[Py_CONSTANT_EMPTY_BYTES] = PyBytes_FromStringAndSize("", 0); + if (constants[Py_CONSTANT_EMPTY_BYTES] == NULL) { + goto fatal_error; + } + + constants[Py_CONSTANT_EMPTY_TUPLE] = PyTuple_New(0); + if (constants[Py_CONSTANT_EMPTY_TUPLE] == NULL) { + goto fatal_error; + } + // goto dance to avoid compiler warnings about Py_FatalError() + goto init_done; + +fatal_error: + // This case should never happen + Py_FatalError("Py_GetConstant() failed to get constants"); + } + +init_done: + if (constant_id <= Py_CONSTANT_EMPTY_TUPLE) { + return Py_NewRef(constants[constant_id]); + } + else { + PyErr_BadInternalCall(); + return NULL; + } +} + +static inline PyObject* Py_GetConstantBorrowed(unsigned int constant_id) +{ + PyObject *obj = Py_GetConstant(constant_id); + Py_XDECREF(obj); + return obj; +} +#endif + + +// gh-114329 added PyList_GetItemRef() to Python 3.13.0a4 +#if PY_VERSION_HEX < 0x030D00A4 +static inline PyObject * +PyList_GetItemRef(PyObject *op, Py_ssize_t index) +{ + PyObject *item = PyList_GetItem(op, index); + Py_XINCREF(item); + return item; +} +#endif + + +// gh-114329 added PyList_GetItemRef() to Python 3.13.0a4 +#if PY_VERSION_HEX < 0x030D00A4 +static inline int +PyDict_SetDefaultRef(PyObject *d, PyObject *key, PyObject *default_value, + PyObject **result) +{ + PyObject *value; + if (PyDict_GetItemRef(d, key, &value) < 0) { + // get error + if (result) { + *result = NULL; + } + return -1; + } + if (value != NULL) { + // present + if (result) { + *result = value; + } + else { + Py_DECREF(value); + } + return 1; + } + + // missing: set the item + if (PyDict_SetItem(d, key, default_value) < 0) { + // set error + if (result) { + *result = NULL; + } + return -1; + } + if (result) { + *result = Py_NewRef(default_value); + } + return 0; +} +#endif + +#if PY_VERSION_HEX < 0x030D00B3 +# define Py_BEGIN_CRITICAL_SECTION(op) { +# define Py_END_CRITICAL_SECTION() } +# define Py_BEGIN_CRITICAL_SECTION2(a, b) { +# define Py_END_CRITICAL_SECTION2() } +#endif + +#if PY_VERSION_HEX < 0x030E0000 && PY_VERSION_HEX >= 0x03060000 && !defined(PYPY_VERSION) +typedef struct PyUnicodeWriter PyUnicodeWriter; + +static inline void PyUnicodeWriter_Discard(PyUnicodeWriter *writer) +{ + _PyUnicodeWriter_Dealloc((_PyUnicodeWriter*)writer); + PyMem_Free(writer); +} + +static inline PyUnicodeWriter* PyUnicodeWriter_Create(Py_ssize_t length) +{ + if (length < 0) { + PyErr_SetString(PyExc_ValueError, + "length must be positive"); + return NULL; + } + + const size_t size = sizeof(_PyUnicodeWriter); + PyUnicodeWriter *pub_writer = (PyUnicodeWriter *)PyMem_Malloc(size); + if (pub_writer == _Py_NULL) { + PyErr_NoMemory(); + return _Py_NULL; + } + _PyUnicodeWriter *writer = (_PyUnicodeWriter *)pub_writer; + + _PyUnicodeWriter_Init(writer); + if (_PyUnicodeWriter_Prepare(writer, length, 127) < 0) { + PyUnicodeWriter_Discard(pub_writer); + return NULL; + } + writer->overallocate = 1; + return pub_writer; +} + +static inline PyObject* PyUnicodeWriter_Finish(PyUnicodeWriter *writer) +{ + PyObject *str = _PyUnicodeWriter_Finish((_PyUnicodeWriter*)writer); + assert(((_PyUnicodeWriter*)writer)->buffer == NULL); + PyMem_Free(writer); + return str; +} + +static inline int +PyUnicodeWriter_WriteChar(PyUnicodeWriter *writer, Py_UCS4 ch) +{ + if (ch > 0x10ffff) { + PyErr_SetString(PyExc_ValueError, + "character must be in range(0x110000)"); + return -1; + } + + return _PyUnicodeWriter_WriteChar((_PyUnicodeWriter*)writer, ch); +} + +static inline int +PyUnicodeWriter_WriteStr(PyUnicodeWriter *writer, PyObject *obj) +{ + PyObject *str = PyObject_Str(obj); + if (str == NULL) { + return -1; + } + + int res = _PyUnicodeWriter_WriteStr((_PyUnicodeWriter*)writer, str); + Py_DECREF(str); + return res; +} + +static inline int +PyUnicodeWriter_WriteRepr(PyUnicodeWriter *writer, PyObject *obj) +{ + PyObject *str = PyObject_Repr(obj); + if (str == NULL) { + return -1; + } + + int res = _PyUnicodeWriter_WriteStr((_PyUnicodeWriter*)writer, str); + Py_DECREF(str); + return res; +} + +static inline int +PyUnicodeWriter_WriteUTF8(PyUnicodeWriter *writer, + const char *str, Py_ssize_t size) +{ + if (size < 0) { + size = (Py_ssize_t)strlen(str); + } + + PyObject *str_obj = PyUnicode_FromStringAndSize(str, size); + if (str_obj == _Py_NULL) { + return -1; + } + + int res = _PyUnicodeWriter_WriteStr((_PyUnicodeWriter*)writer, str_obj); + Py_DECREF(str_obj); + return res; +} + +static inline int +PyUnicodeWriter_WriteWideChar(PyUnicodeWriter *writer, + const wchar_t *str, Py_ssize_t size) +{ + if (size < 0) { + size = (Py_ssize_t)wcslen(str); + } + + PyObject *str_obj = PyUnicode_FromWideChar(str, size); + if (str_obj == _Py_NULL) { + return -1; + } + + int res = _PyUnicodeWriter_WriteStr((_PyUnicodeWriter*)writer, str_obj); + Py_DECREF(str_obj); + return res; +} + +static inline int +PyUnicodeWriter_WriteSubstring(PyUnicodeWriter *writer, PyObject *str, + Py_ssize_t start, Py_ssize_t end) +{ + if (!PyUnicode_Check(str)) { + PyErr_Format(PyExc_TypeError, "expect str, not %T", str); + return -1; + } + if (start < 0 || start > end) { + PyErr_Format(PyExc_ValueError, "invalid start argument"); + return -1; + } + if (end > PyUnicode_GET_LENGTH(str)) { + PyErr_Format(PyExc_ValueError, "invalid end argument"); + return -1; + } + + return _PyUnicodeWriter_WriteSubstring((_PyUnicodeWriter*)writer, str, + start, end); +} + +static inline int +PyUnicodeWriter_Format(PyUnicodeWriter *writer, const char *format, ...) +{ + va_list vargs; + va_start(vargs, format); + PyObject *str = PyUnicode_FromFormatV(format, vargs); + va_end(vargs); + if (str == _Py_NULL) { + return -1; + } + + int res = _PyUnicodeWriter_WriteStr((_PyUnicodeWriter*)writer, str); + Py_DECREF(str); + return res; +} +#endif // PY_VERSION_HEX < 0x030E0000 + +// gh-116560 added PyLong_GetSign() to Python 3.14.0a0 +#if PY_VERSION_HEX < 0x030E00A0 +static inline int PyLong_GetSign(PyObject *obj, int *sign) +{ + if (!PyLong_Check(obj)) { + PyErr_Format(PyExc_TypeError, "expect int, got %s", Py_TYPE(obj)->tp_name); + return -1; + } + + *sign = _PyLong_Sign(obj); + return 0; +} +#endif + + +#ifdef __cplusplus +} +#endif +#endif // PYTHONCAPI_COMPAT diff --git a/pyproject.toml b/pyproject.toml index b2de51005..67710d036 100644 --- a/pyproject.toml +++ b/pyproject.toml @@ -78,3 +78,7 @@ test-requires = "-r requirements/pytest.txt" test-command = "pytest {project}/tests" # don't build PyPy wheels, install from source instead skip = "pp*" +free-threaded-support = true + +[tool.cibuildwheel.linux] +before-all = "yum install -y libffi-devel || apk add --upgrade libffi-dev || apt-get install libffi-dev"