1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554
|
// Protocol Buffers - Google's data interchange format
// Copyright 2023 Google LLC. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
#include "python/map.h"
#include "python/convert.h"
#include "python/message.h"
#include "python/protobuf.h"
#include "upb/message/map.h"
#include "upb/reflection/def.h"
// -----------------------------------------------------------------------------
// MapContainer
// -----------------------------------------------------------------------------
typedef struct {
// clang-format off
PyObject_HEAD
PyObject* arena;
// clang-format on
// The field descriptor (upb_FieldDef*).
// The low bit indicates whether the container is reified (see ptr below).
// - low bit set: repeated field is a stub (empty map, no underlying data).
// - low bit clear: repeated field is reified (points to upb_Array).
uintptr_t field;
union {
PyObject* parent; // stub: owning pointer to parent message.
upb_Map* map; // reified: the data for this array.
} ptr;
int version;
} PyUpb_MapContainer;
static PyObject* PyUpb_MapIterator_New(PyUpb_MapContainer* map);
static bool PyUpb_MapContainer_IsStub(PyUpb_MapContainer* self) {
return self->field & 1;
}
// If the map is reified, returns it. Otherwise, returns NULL.
// If NULL is returned, the object is empty and has no underlying data.
static upb_Map* PyUpb_MapContainer_GetIfReified(PyUpb_MapContainer* self) {
return PyUpb_MapContainer_IsStub(self) ? NULL : self->ptr.map;
}
static const upb_FieldDef* PyUpb_MapContainer_GetField(
PyUpb_MapContainer* self) {
return (const upb_FieldDef*)(self->field & ~(uintptr_t)1);
}
static void PyUpb_MapContainer_Dealloc(void* _self) {
PyUpb_MapContainer* self = _self;
Py_DECREF(self->arena);
if (PyUpb_MapContainer_IsStub(self)) {
PyUpb_Message_CacheDelete(self->ptr.parent,
PyUpb_MapContainer_GetField(self));
Py_DECREF(self->ptr.parent);
} else {
PyUpb_ObjCache_Delete(self->ptr.map);
}
PyUpb_Dealloc(_self);
}
static PyTypeObject* PyUpb_MapContainer_GetClass(const upb_FieldDef* f) {
assert(upb_FieldDef_IsMap(f));
PyUpb_ModuleState* state = PyUpb_ModuleState_Get();
const upb_FieldDef* val =
upb_MessageDef_Field(upb_FieldDef_MessageSubDef(f), 1);
assert(upb_FieldDef_Number(val) == 2);
return upb_FieldDef_IsSubMessage(val) ? state->message_map_container_type
: state->scalar_map_container_type;
}
PyObject* PyUpb_MapContainer_NewStub(PyObject* parent, const upb_FieldDef* f,
PyObject* arena) {
// We only create stubs when the parent is reified, by convention. However
// this is not an invariant: the parent could become reified at any time.
assert(PyUpb_Message_GetIfReified(parent) == NULL);
PyTypeObject* cls = PyUpb_MapContainer_GetClass(f);
PyUpb_MapContainer* map = (void*)PyType_GenericAlloc(cls, 0);
map->arena = arena;
map->field = (uintptr_t)f | 1;
map->ptr.parent = parent;
map->version = 0;
Py_INCREF(arena);
Py_INCREF(parent);
return &map->ob_base;
}
void PyUpb_MapContainer_Reify(PyObject* _self, upb_Map* map) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
if (!map) {
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
upb_Arena* arena = PyUpb_Arena_Get(self->arena);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_Field(entry_m, 0);
const upb_FieldDef* val_f = upb_MessageDef_Field(entry_m, 1);
map = upb_Map_New(arena, upb_FieldDef_CType(key_f),
upb_FieldDef_CType(val_f));
}
PyUpb_ObjCache_Add(map, &self->ob_base);
Py_DECREF(self->ptr.parent);
self->ptr.map = map; // Overwrites self->ptr.parent.
self->field &= ~(uintptr_t)1;
assert(!PyUpb_MapContainer_IsStub(self));
}
void PyUpb_MapContainer_Invalidate(PyObject* obj) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)obj;
self->version++;
}
upb_Map* PyUpb_MapContainer_EnsureReified(PyObject* _self) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
self->version++;
upb_Map* map = PyUpb_MapContainer_GetIfReified(self);
if (map) return map; // Already writable.
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
upb_Arena* arena = PyUpb_Arena_Get(self->arena);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_Field(entry_m, 0);
const upb_FieldDef* val_f = upb_MessageDef_Field(entry_m, 1);
map =
upb_Map_New(arena, upb_FieldDef_CType(key_f), upb_FieldDef_CType(val_f));
upb_MessageValue msgval = {.map_val = map};
PyUpb_Message_SetConcreteSubobj(self->ptr.parent, f, msgval);
PyUpb_MapContainer_Reify((PyObject*)self, map);
return map;
}
static bool PyUpb_MapContainer_Set(PyUpb_MapContainer* self, upb_Map* map,
upb_MessageValue key, upb_MessageValue val,
upb_Arena* arena) {
switch (upb_Map_Insert(map, key, val, arena)) {
case kUpb_MapInsertStatus_Inserted:
return true;
case kUpb_MapInsertStatus_Replaced:
// We did not insert a new key, undo the previous invalidate.
self->version--;
return true;
case kUpb_MapInsertStatus_OutOfMemory:
return false;
}
return false; // Unreachable, silence compiler warning.
}
// Assigns `self[key] = val` for the map `self`.
static int PyUpb_MapContainer_AssignSubscript(PyObject* _self, PyObject* key,
PyObject* val) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
upb_Map* map = PyUpb_MapContainer_EnsureReified(_self);
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_Field(entry_m, 0);
const upb_FieldDef* val_f = upb_MessageDef_Field(entry_m, 1);
upb_Arena* arena = PyUpb_Arena_Get(self->arena);
upb_MessageValue u_key, u_val;
if (!PyUpb_PyToUpb(key, key_f, &u_key, NULL)) return -1;
if (val) {
if (!PyUpb_PyToUpb(val, val_f, &u_val, arena)) return -1;
if (!PyUpb_MapContainer_Set(self, map, u_key, u_val, arena)) return -1;
} else {
if (!upb_Map_Delete(map, u_key, NULL)) {
PyErr_Format(PyExc_KeyError, "Key not present in map");
return -1;
}
}
return 0;
}
static PyObject* PyUpb_MapContainer_Subscript(PyObject* _self, PyObject* key) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
upb_Map* map = PyUpb_MapContainer_GetIfReified(self);
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_Field(entry_m, 0);
const upb_FieldDef* val_f = upb_MessageDef_Field(entry_m, 1);
upb_MessageValue u_key, u_val;
if (!PyUpb_PyToUpb(key, key_f, &u_key, NULL)) return NULL;
if (!map || !upb_Map_Get(map, u_key, &u_val)) {
map = PyUpb_MapContainer_EnsureReified(_self);
upb_Arena* arena = PyUpb_Arena_Get(self->arena);
if (upb_FieldDef_IsSubMessage(val_f)) {
const upb_MessageDef* m = upb_FieldDef_MessageSubDef(val_f);
const upb_MiniTable* layout = upb_MessageDef_MiniTable(m);
u_val.msg_val = upb_Message_New(layout, arena);
} else {
memset(&u_val, 0, sizeof(u_val));
}
if (!PyUpb_MapContainer_Set(self, map, u_key, u_val, arena)) return false;
}
return PyUpb_UpbToPy(u_val, val_f, self->arena);
}
static int PyUpb_MapContainer_Contains(PyObject* _self, PyObject* key) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
upb_Map* map = PyUpb_MapContainer_GetIfReified(self);
if (!map) return 0;
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_Field(entry_m, 0);
upb_MessageValue u_key;
if (!PyUpb_PyToUpb(key, key_f, &u_key, NULL)) return -1;
if (upb_Map_Get(map, u_key, NULL)) {
return 1;
} else {
return 0;
}
}
static PyObject* PyUpb_MapContainer_Clear(PyObject* _self, PyObject* key) {
upb_Map* map = PyUpb_MapContainer_EnsureReified(_self);
upb_Map_Clear(map);
Py_RETURN_NONE;
}
static PyObject* PyUpb_ScalarMapContainer_Setdefault(PyObject* _self,
PyObject* args) {
PyObject* key;
PyObject* default_value = Py_None;
if (!PyArg_UnpackTuple(args, "setdefault", 1, 2, &key, &default_value)) {
return NULL;
}
if (default_value == Py_None) {
PyErr_Format(PyExc_ValueError,
"The value for scalar map setdefault must be set.");
return NULL;
}
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
upb_Map* map = PyUpb_MapContainer_EnsureReified(_self);
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_Field(entry_m, 0);
const upb_FieldDef* val_f = upb_MessageDef_Field(entry_m, 1);
upb_MessageValue u_key, u_val;
if (!PyUpb_PyToUpb(key, key_f, &u_key, NULL)) return NULL;
if (upb_Map_Get(map, u_key, &u_val)) {
return PyUpb_UpbToPy(u_val, val_f, self->arena);
}
upb_Arena* arena = PyUpb_Arena_Get(self->arena);
if (!PyUpb_PyToUpb(default_value, val_f, &u_val, arena)) return NULL;
if (!PyUpb_MapContainer_Set(self, map, u_key, u_val, arena)) return NULL;
Py_INCREF(default_value);
return default_value;
}
static PyObject* PyUpb_MessageMapContainer_Setdefault(PyObject* self,
PyObject* args) {
PyErr_Format(PyExc_NotImplementedError,
"Set message map value directly is not supported.");
return NULL;
}
static PyObject* PyUpb_MapContainer_Get(PyObject* _self, PyObject* args,
PyObject* kwargs) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
static const char* kwlist[] = {"key", "default", NULL};
PyObject* key;
PyObject* default_value = NULL;
upb_Map* map = PyUpb_MapContainer_GetIfReified(self);
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|O", (char**)kwlist, &key,
&default_value)) {
return NULL;
}
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_Field(entry_m, 0);
const upb_FieldDef* val_f = upb_MessageDef_Field(entry_m, 1);
upb_MessageValue u_key, u_val;
if (!PyUpb_PyToUpb(key, key_f, &u_key, NULL)) return NULL;
if (map && upb_Map_Get(map, u_key, &u_val)) {
return PyUpb_UpbToPy(u_val, val_f, self->arena);
}
if (default_value) {
Py_INCREF(default_value);
return default_value;
}
Py_RETURN_NONE;
}
static PyObject* PyUpb_MapContainer_GetEntryClass(PyObject* _self,
PyObject* arg) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
return PyUpb_Descriptor_GetClass(entry_m);
}
static Py_ssize_t PyUpb_MapContainer_Length(PyObject* _self) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
upb_Map* map = PyUpb_MapContainer_GetIfReified(self);
return map ? upb_Map_Size(map) : 0;
}
int PyUpb_Message_InitMapAttributes(PyObject* map, PyObject* value,
const upb_FieldDef* f);
static PyObject* PyUpb_MapContainer_MergeFrom(PyObject* _self, PyObject* _arg) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
if (PyDict_Check(_arg)) {
return PyErr_Format(PyExc_AttributeError, "Merging of dict is not allowed");
}
if (PyUpb_Message_InitMapAttributes(_self, _arg, f) < 0) {
return NULL;
}
Py_RETURN_NONE;
}
static PyObject* PyUpb_MapContainer_Repr(PyObject* _self) {
PyUpb_MapContainer* self = (PyUpb_MapContainer*)_self;
upb_Map* map = PyUpb_MapContainer_GetIfReified(self);
PyObject* dict = PyDict_New();
if (map) {
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_Field(entry_m, 0);
const upb_FieldDef* val_f = upb_MessageDef_Field(entry_m, 1);
size_t iter = kUpb_Map_Begin;
upb_MessageValue map_key, map_val;
while (upb_Map_Next(map, &map_key, &map_val, &iter)) {
PyObject* key = PyUpb_UpbToPy(map_key, key_f, self->arena);
PyObject* val = PyUpb_UpbToPy(map_val, val_f, self->arena);
if (!key || !val) {
Py_XDECREF(key);
Py_XDECREF(val);
Py_DECREF(dict);
return NULL;
}
PyDict_SetItem(dict, key, val);
Py_DECREF(key);
Py_DECREF(val);
}
}
PyObject* repr = PyObject_Repr(dict);
Py_DECREF(dict);
return repr;
}
PyObject* PyUpb_MapContainer_GetOrCreateWrapper(upb_Map* map,
const upb_FieldDef* f,
PyObject* arena) {
PyUpb_MapContainer* ret = (void*)PyUpb_ObjCache_Get(map);
if (ret) return &ret->ob_base;
PyTypeObject* cls = PyUpb_MapContainer_GetClass(f);
ret = (void*)PyType_GenericAlloc(cls, 0);
ret->arena = arena;
ret->field = (uintptr_t)f;
ret->ptr.map = map;
ret->version = 0;
Py_INCREF(arena);
PyUpb_ObjCache_Add(map, &ret->ob_base);
return &ret->ob_base;
}
// -----------------------------------------------------------------------------
// ScalarMapContainer
// -----------------------------------------------------------------------------
static PyMethodDef PyUpb_ScalarMapContainer_Methods[] = {
{"clear", PyUpb_MapContainer_Clear, METH_NOARGS,
"Removes all elements from the map."},
{"setdefault", (PyCFunction)PyUpb_ScalarMapContainer_Setdefault,
METH_VARARGS,
"If the key does not exist, insert the key, with the specified value"},
{"get", (PyCFunction)PyUpb_MapContainer_Get, METH_VARARGS | METH_KEYWORDS,
"Gets the value for the given key if present, or otherwise a default"},
{"GetEntryClass", PyUpb_MapContainer_GetEntryClass, METH_NOARGS,
"Return the class used to build Entries of (key, value) pairs."},
{"MergeFrom", PyUpb_MapContainer_MergeFrom, METH_O,
"Merges a map into the current map."},
/*
{ "__deepcopy__", (PyCFunction)DeepCopy, METH_VARARGS,
"Makes a deep copy of the class." },
{ "__reduce__", (PyCFunction)Reduce, METH_NOARGS,
"Outputs picklable representation of the repeated field." },
*/
{NULL, NULL},
};
static PyType_Slot PyUpb_ScalarMapContainer_Slots[] = {
{Py_tp_dealloc, PyUpb_MapContainer_Dealloc},
{Py_mp_length, PyUpb_MapContainer_Length},
{Py_mp_subscript, PyUpb_MapContainer_Subscript},
{Py_mp_ass_subscript, PyUpb_MapContainer_AssignSubscript},
{Py_sq_contains, PyUpb_MapContainer_Contains},
{Py_tp_methods, PyUpb_ScalarMapContainer_Methods},
{Py_tp_iter, PyUpb_MapIterator_New},
{Py_tp_repr, PyUpb_MapContainer_Repr},
{0, NULL},
};
static PyType_Spec PyUpb_ScalarMapContainer_Spec = {
PYUPB_MODULE_NAME ".ScalarMapContainer",
sizeof(PyUpb_MapContainer),
0,
Py_TPFLAGS_DEFAULT,
PyUpb_ScalarMapContainer_Slots,
};
// -----------------------------------------------------------------------------
// MessageMapContainer
// -----------------------------------------------------------------------------
static PyMethodDef PyUpb_MessageMapContainer_Methods[] = {
{"clear", PyUpb_MapContainer_Clear, METH_NOARGS,
"Removes all elements from the map."},
{"setdefault", (PyCFunction)PyUpb_MessageMapContainer_Setdefault,
METH_VARARGS, "setdefault is disallowed in MessageMap."},
{"get", (PyCFunction)PyUpb_MapContainer_Get, METH_VARARGS | METH_KEYWORDS,
"Gets the value for the given key if present, or otherwise a default"},
{"get_or_create", PyUpb_MapContainer_Subscript, METH_O,
"Alias for getitem, useful to make explicit that the map is mutated."},
{"GetEntryClass", PyUpb_MapContainer_GetEntryClass, METH_NOARGS,
"Return the class used to build Entries of (key, value) pairs."},
{"MergeFrom", PyUpb_MapContainer_MergeFrom, METH_O,
"Merges a map into the current map."},
/*
{ "__deepcopy__", (PyCFunction)DeepCopy, METH_VARARGS,
"Makes a deep copy of the class." },
{ "__reduce__", (PyCFunction)Reduce, METH_NOARGS,
"Outputs picklable representation of the repeated field." },
*/
{NULL, NULL},
};
static PyType_Slot PyUpb_MessageMapContainer_Slots[] = {
{Py_tp_dealloc, PyUpb_MapContainer_Dealloc},
{Py_mp_length, PyUpb_MapContainer_Length},
{Py_mp_subscript, PyUpb_MapContainer_Subscript},
{Py_mp_ass_subscript, PyUpb_MapContainer_AssignSubscript},
{Py_sq_contains, PyUpb_MapContainer_Contains},
{Py_tp_methods, PyUpb_MessageMapContainer_Methods},
{Py_tp_iter, PyUpb_MapIterator_New},
{Py_tp_repr, PyUpb_MapContainer_Repr},
{0, NULL}};
static PyType_Spec PyUpb_MessageMapContainer_Spec = {
PYUPB_MODULE_NAME ".MessageMapContainer", sizeof(PyUpb_MapContainer), 0,
Py_TPFLAGS_DEFAULT, PyUpb_MessageMapContainer_Slots};
// -----------------------------------------------------------------------------
// MapIterator
// -----------------------------------------------------------------------------
typedef struct {
// clang-format off
PyObject_HEAD
PyUpb_MapContainer* map; // We own a reference.
// clang-format on
size_t iter;
int version;
} PyUpb_MapIterator;
static PyObject* PyUpb_MapIterator_New(PyUpb_MapContainer* map) {
PyUpb_ModuleState* state = PyUpb_ModuleState_Get();
PyUpb_MapIterator* iter =
(void*)PyType_GenericAlloc(state->map_iterator_type, 0);
iter->map = map;
iter->iter = kUpb_Map_Begin;
iter->version = map->version;
Py_INCREF(map);
return &iter->ob_base;
}
static void PyUpb_MapIterator_Dealloc(void* _self) {
PyUpb_MapIterator* self = (PyUpb_MapIterator*)_self;
Py_DECREF(&self->map->ob_base);
PyUpb_Dealloc(_self);
}
static PyObject* PyUpb_MapIterator_IterNext(PyObject* _self) {
PyUpb_MapIterator* self = (PyUpb_MapIterator*)_self;
if (self->version != self->map->version) {
return PyErr_Format(PyExc_RuntimeError, "Map modified during iteration.");
}
upb_Map* map = PyUpb_MapContainer_GetIfReified(self->map);
if (!map) return NULL;
upb_MessageValue key, val;
if (!upb_Map_Next(map, &key, &val, &self->iter)) return NULL;
const upb_FieldDef* f = PyUpb_MapContainer_GetField(self->map);
const upb_MessageDef* entry_m = upb_FieldDef_MessageSubDef(f);
const upb_FieldDef* key_f = upb_MessageDef_Field(entry_m, 0);
return PyUpb_UpbToPy(key, key_f, self->map->arena);
}
static PyType_Slot PyUpb_MapIterator_Slots[] = {
{Py_tp_dealloc, PyUpb_MapIterator_Dealloc},
{Py_tp_iter, PyObject_SelfIter},
{Py_tp_iternext, PyUpb_MapIterator_IterNext},
{0, NULL}};
static PyType_Spec PyUpb_MapIterator_Spec = {
PYUPB_MODULE_NAME ".MapIterator", sizeof(PyUpb_MapIterator), 0,
Py_TPFLAGS_DEFAULT, PyUpb_MapIterator_Slots};
// -----------------------------------------------------------------------------
// Top Level
// -----------------------------------------------------------------------------
static PyObject* GetMutableMappingBase(void) {
PyObject* collections = NULL;
PyObject* mapping = NULL;
PyObject* base = NULL;
if ((collections = PyImport_ImportModule("collections.abc")) &&
(mapping = PyObject_GetAttrString(collections, "MutableMapping"))) {
base = Py_BuildValue("O", mapping);
}
Py_XDECREF(collections);
Py_XDECREF(mapping);
return base;
}
bool PyUpb_Map_Init(PyObject* m) {
PyUpb_ModuleState* state = PyUpb_ModuleState_GetFromModule(m);
PyObject* base = GetMutableMappingBase();
if (!base) return false;
const char* methods[] = {"keys", "items", "values", "__eq__", "__ne__",
"pop", "popitem", "update", NULL};
state->message_map_container_type = PyUpb_AddClassWithRegister(
m, &PyUpb_MessageMapContainer_Spec, base, methods);
if (!state->message_map_container_type) {
return false;
}
state->scalar_map_container_type = PyUpb_AddClassWithRegister(
m, &PyUpb_ScalarMapContainer_Spec, base, methods);
if (!state->scalar_map_container_type) {
return false;
}
state->map_iterator_type = PyUpb_AddClass(m, &PyUpb_MapIterator_Spec);
Py_DECREF(base);
Py_DECREF(methods);
return state->message_map_container_type &&
state->scalar_map_container_type && state->map_iterator_type;
}
|