pythoncapi-compat/pythoncapi_compat.h at main · encukou/pythoncapi-compat · GitHub

Repository navigation

History

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

520

521

522

523

524

525

526

527

528

529

530

531

532

533

534

535

536

537

538

539

540

541

542

543

544

545

546

547

548

549

550

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

570

571

572

573

574

575

576

577

578

579

580

581

582

583

584

585

586

587

588

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

608

609

610

611

612

613

614

615

616

617

618

619

620

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

643

644

645

646

647

648

649

650

651

652

653

654

655

656

657

658

659

660

661

662

663

664

665

666

667

668

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

688

689

690

691

692

693

694

695

696

697

698

699

700

701

702

703

704

705

706

707

708

709

710

711

712

713

714

715

716

717

718

719

720

721

722

723

724

725

726

727

728

729

730

731

732

733

734

735

736

737

738

739

740

741

742

743

744

745

746

747

748

749

750

751

752

753

754

755

756

757

758

759

760

761

762

763

764

765

766

767

768

769

770

771

772

773

774

775

776

777

778

779

780

781

782

783

784

785

786

787

788

789

790

791

792

793

794

795

796

797

798

799

800

801

802

803

804

805

806

807

808

809

810

811

812

813

814

815

816

817

818

819

820

821

822

823

824

825

826

827

828

829

830

831

832

833

834

835

836

837

838

839

840

841

842

843

844

845

846

847

848

849

850

851

852

853

854

855

856

857

858

859

860

861

862

863

864

865

866

867

868

869

870

871

872

873

874

875

876

877

878

879

880

881

882

883

884

885

886

887

888

889

890

891

892

893

894

895

896

897

898

899

900

901

902

903

904

905

906

907

908

909

910

911

912

913

914

915

916

917

918

919

920

921

922

923

924

925

926

927

928

929

930

931

932

933

934

935

936

937

938

939

940

941

942

943

944

945

946

947

948

949

950

951

952

953

954

955

956

957

958

959

960

961

962

963

964

965

966

967

968

969

970

971

972

973

974

975

976

977

978

979

980

981

982

983

984

985

986

987

988

989

990

991

992

993

994

995

996

997

998

999

1000

// 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/main/pythoncapi_compat.h

// SPDX-License-Identifier: 0BSD

#ifndef PYTHONCAPI_COMPAT

#define PYTHONCAPI_COMPAT

#ifdef __cplusplus

extern "C" {

#endif

#include <Python.h>

#include <stddef.h> // offsetof()

// 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

#if PY_VERSION_HEX < 0x030C00A3

# include <structmember.h> // T_SHORT, READONLY

#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.

#ifndef _Py_NULL

# if (defined (__STDC_VERSION__) && __STDC_VERSION__ > 201710L) \

|| (defined(__cplusplus) && __cplusplus >= 201103)

# define _Py_NULL nullptr

# else

# define _Py_NULL NULL

# endif

#endif

// Cast argument to PyObject* type.

#ifndef _PyObject_CAST

# define _PyObject_CAST(op) _Py_CAST(PyObject*, op)

#endif

#ifndef Py_BUILD_ASSERT

# define Py_BUILD_ASSERT(cond) \

do { \

(void)sizeof(char [1 - 2 * !(cond)]); \

} while(0)

#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) && PY_VERSION_HEX < 0x030B0000)

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 1;

}

#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 || *dict == NULL) {

return -1;

}

Py_VISIT(*dict);

return 0;

}

static inline void

PyObject_ClearManagedDict(PyObject *obj)

{

PyObject **dict = _PyObject_GetDictPtr(obj);

if (dict == NULL || *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);

View remainder of file in raw view

pythoncapi-compat/pythoncapi_compat.h at main · encukou/pythoncapi-compat · GitHub

Repository navigation

Expand file tree

Breadcrumbs

pythoncapi_compat.h

Latest commit

History

Breadcrumbs

pythoncapi_compat.h

File metadata and controls