bpo-39573: Use Py_SET_SIZE() function

Modules/_asynciomodule.c

@@ -1007,7 +1007,7 @@ _asyncio_Future_remove_done_callback(FutureObj *self, PyObject *fn)
  }
 
  if (j < len) {
-Py_SIZE(newlist) = j;
+Py_SET_SIZE(newlist, j);
  }
  j = PyList_GET_SIZE(newlist);
  len = PyList_GET_SIZE(self->fut_callbacks);

Modules/_collectionsmodule.c

@@ -172,7 +172,7 @@ deque_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
  MARK_END(b->rightlink);
 
  assert(BLOCKLEN >= 2);
-Py_SIZE(deque) = 0;
+Py_SET_SIZE(deque, 0);
  deque->leftblock = b;
  deque->rightblock = b;
  deque->leftindex = CENTER + 1;
@@ -196,7 +196,7 @@ deque_pop(dequeobject *deque, PyObject *unused)
  }
  item = deque->rightblock->data[deque->rightindex];
  deque->rightindex--;
- Py_SIZE(deque)--;
+Py_SET_SIZE(deque, Py_SIZE(deque) - 1);
  deque->state++;
 
  if (deque->rightindex < 0) {
@@ -234,7 +234,7 @@ deque_popleft(dequeobject *deque, PyObject *unused)
  assert(deque->leftblock != NULL);
  item = deque->leftblock->data[deque->leftindex];
  deque->leftindex++;
- Py_SIZE(deque)--;
+Py_SET_SIZE(deque, Py_SIZE(deque) - 1);
  deque->state++;
 
  if (deque->leftindex == BLOCKLEN) {
@@ -287,7 +287,7 @@ deque_append_internal(dequeobject *deque, PyObject *item, Py_ssize_t maxlen)
  MARK_END(b->rightlink);
  deque->rightindex = -1;
  }
- Py_SIZE(deque)++;
+Py_SET_SIZE(deque, Py_SIZE(deque) + 1);
  deque->rightindex++;
  deque->rightblock->data[deque->rightindex] = item;
  if (NEEDS_TRIM(deque, maxlen)) {
@@ -324,7 +324,7 @@ deque_appendleft_internal(dequeobject *deque, PyObject *item, Py_ssize_t maxlen)
  MARK_END(b->leftlink);
  deque->leftindex = BLOCKLEN;
  }
- Py_SIZE(deque)++;
+Py_SET_SIZE(deque, Py_SIZE(deque) + 1);
  deque->leftindex--;
  deque->leftblock->data[deque->leftindex] = item;
  if (NEEDS_TRIM(deque, deque->maxlen)) {
@@ -597,7 +597,7 @@ deque_clear(dequeobject *deque)
  /* Set the deque to be empty using the newly allocated block */
  MARK_END(b->leftlink);
  MARK_END(b->rightlink);
-Py_SIZE(deque) = 0;
+Py_SET_SIZE(deque, 0);
  deque->leftblock = b;
  deque->rightblock = b;
  deque->leftindex = CENTER + 1;
@@ -680,7 +680,7 @@ deque_inplace_repeat(dequeobject *deque, Py_ssize_t n)
  if (deque->rightindex == BLOCKLEN - 1) {
  block *b = newblock();
  if (b == NULL) {
- Py_SIZE(deque) += i;
+Py_SET_SIZE(deque, Py_SIZE(deque) + i);
  return NULL;
  }
  b->leftlink = deque->rightblock;
@@ -700,7 +700,7 @@ deque_inplace_repeat(dequeobject *deque, Py_ssize_t n)
  deque->rightblock->data[deque->rightindex] = item;
  }
  }
- Py_SIZE(deque) += i;
+Py_SET_SIZE(deque, Py_SIZE(deque) + i);
  Py_INCREF(deque);
  return (PyObject *)deque;
  }

Modules/_decimal/_decimal.c

@@ -3253,9 +3253,9 @@ dec_as_long(PyObject *dec, PyObject *context, int round)
  i--;
  }
 
-Py_SIZE(pylong) = i;
+Py_SET_SIZE(pylong, i);
  if (mpd_isnegative(x) && !mpd_iszero(x)) {
-Py_SIZE(pylong) = -i;
+Py_SET_SIZE(pylong, -i);
  }
 
  mpd_del(x);

Modules/_pickle.c

@@ -461,7 +461,7 @@ Pdata_New(void)
 
  if (!(self = PyObject_New(Pdata, &Pdata_Type)))
  return NULL;
-Py_SIZE(self) = 0;
+Py_SET_SIZE(self, 0);
  self->mark_set = 0;
  self->fence = 0;
  self->allocated = 8;
@@ -488,7 +488,7 @@ Pdata_clear(Pdata *self, Py_ssize_t clearto)
  while (--i >= clearto) {
  Py_CLEAR(self->data[i]);
  }
-Py_SIZE(self) = clearto;
+Py_SET_SIZE(self, clearto);
  return 0;
 }
 
@@ -539,7 +539,8 @@ Pdata_pop(Pdata *self)
  Pdata_stack_underflow(self);
  return NULL;
  }
- return self->data[--Py_SIZE(self)];
+ Py_SET_SIZE(self, Py_SIZE(self) - 1);
+ return self->data[Py_SIZE(self)];
 }
 #define PDATA_POP(D, V) do { (V) = Pdata_pop((D)); } while (0)
 
@@ -549,7 +550,8 @@ Pdata_push(Pdata *self, PyObject *obj)
  if (Py_SIZE(self) == self->allocated && Pdata_grow(self) < 0) {
  return -1;
  }
- self->data[Py_SIZE(self)++] = obj;
+ self->data[Py_SIZE(self)] = obj;
+ Py_SET_SIZE(self, Py_SIZE(self) + 1);
  return 0;
 }
 
@@ -579,7 +581,7 @@ Pdata_poptuple(Pdata *self, Py_ssize_t start)
  for (i = start, j = 0; j < len; i++, j++)
  PyTuple_SET_ITEM(tuple, j, self->data[i]);
 
-Py_SIZE(self) = start;
+Py_SET_SIZE(self, start);
  return tuple;
 }
 
@@ -596,7 +598,7 @@ Pdata_poplist(Pdata *self, Py_ssize_t start)
  for (i = start, j = 0; j < len; i++, j++)
  PyList_SET_ITEM(list, j, self->data[i]);
 
-Py_SIZE(self) = start;
+Py_SET_SIZE(self, start);
  return list;
 }
 
@@ -6134,7 +6136,7 @@ load_pop(UnpicklerObject *self)
  else {
  len--;
  Py_DECREF(self->stack->data[len]);
-Py_SIZE(self->stack) = len;
+Py_SET_SIZE(self->stack, len);
  }
  return 0;
 }
@@ -6495,13 +6497,13 @@ do_append(UnpicklerObject *self, Py_ssize_t x)
  result = _Pickle_FastCall(append_func, value);
  if (result == NULL) {
  Pdata_clear(self->stack, i + 1);
-Py_SIZE(self->stack) = x;
+Py_SET_SIZE(self->stack, x);
  Py_DECREF(append_func);
  return -1;
  }
  Py_DECREF(result);
  }
-Py_SIZE(self->stack) = x;
+Py_SET_SIZE(self->stack, x);
  Py_DECREF(append_func);
  }
  }
@@ -6623,12 +6625,12 @@ load_additems(UnpicklerObject *self)
  result = _Pickle_FastCall(add_func, item);
  if (result == NULL) {
  Pdata_clear(self->stack, i + 1);
-Py_SIZE(self->stack) = mark;
+Py_SET_SIZE(self->stack, mark);
  return -1;
  }
  Py_DECREF(result);
  }
-Py_SIZE(self->stack) = mark;
+Py_SET_SIZE(self->stack, mark);
  }
 
  return 0;

Modules/arraymodule.c

@@ -128,14 +128,14 @@ array_resize(arrayobject *self, Py_ssize_t newsize)
  if (self->allocated >= newsize &&
  Py_SIZE(self) < newsize + 16 &&
  self->ob_item != NULL) {
-Py_SIZE(self) = newsize;
+Py_SET_SIZE(self, newsize);
  return 0;
  }
 
  if (newsize == 0) {
  PyMem_FREE(self->ob_item);
  self->ob_item = NULL;
-Py_SIZE(self) = 0;
+Py_SET_SIZE(self, 0);
  self->allocated = 0;
  return 0;
  }
@@ -165,7 +165,7 @@ array_resize(arrayobject *self, Py_ssize_t newsize)
  return -1;
  }
  self->ob_item = items;
-Py_SIZE(self) = newsize;
+Py_SET_SIZE(self, newsize);
  self->allocated = _new_size;
  return 0;
 }
@@ -593,7 +593,7 @@ newarrayobject(PyTypeObject *type, Py_ssize_t size, const struct arraydescr *des
  op->ob_descr = descr;
  op->allocated = size;
  op->weakreflist = NULL;
-Py_SIZE(op) = size;
+Py_SET_SIZE(op, size);
  if (size <= 0) {
  op->ob_item = NULL;
  }
@@ -2696,7 +2696,7 @@ array_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
  return NULL;
  }
  self->ob_item = item;
-Py_SIZE(self) = n / sizeof(Py_UNICODE);
+Py_SET_SIZE(self, n / sizeof(Py_UNICODE));
  memcpy(item, ustr, n);
  self->allocated = Py_SIZE(self);
  }

Modules/gcmodule.c

@@ -2294,7 +2294,7 @@ _PyObject_GC_Resize(PyVarObject *op, Py_ssize_t nitems)
  if (g == NULL)
  return (PyVarObject *)PyErr_NoMemory();
  op = (PyVarObject *) FROM_GC(g);
-Py_SIZE(op) = nitems;
+Py_SET_SIZE(op, nitems);
  return op;
 }
 

Objects/bytearrayobject.c

@@ -148,7 +148,7 @@ PyByteArray_FromStringAndSize(const char *bytes, Py_ssize_t size)
  memcpy(new->ob_bytes, bytes, size);
  new->ob_bytes[size] = '\0'; /* Trailing null byte */
  }
-Py_SIZE(new) = size;
+Py_SET_SIZE(new, size);
  new->ob_alloc = alloc;
  new->ob_start = new->ob_bytes;
  new->ob_exports = 0;
@@ -206,7 +206,7 @@ PyByteArray_Resize(PyObject *self, Py_ssize_t requested_size)
  }
  else {
  /* Minor downsize; quick exit */
-Py_SIZE(self) = size;
+Py_SET_SIZE(self, size);
  PyByteArray_AS_STRING(self)[size] = '\0'; /* Trailing null */
  return 0;
  }
@@ -246,7 +246,7 @@ PyByteArray_Resize(PyObject *self, Py_ssize_t requested_size)
  }
 
  obj->ob_bytes = obj->ob_start = sval;
-Py_SIZE(self) = size;
+Py_SET_SIZE(self, size);
  obj->ob_alloc = alloc;
  obj->ob_bytes[size] = '\0'; /* Trailing null byte */
 
@@ -498,7 +498,7 @@ bytearray_setslice_linear(PyByteArrayObject *self,
  }
  /* memmove() removed bytes, the bytearray object cannot be
  restored in its previous state. */
- Py_SIZE(self) += growth;
+Py_SET_SIZE(self, Py_SIZE(self) + growth);
  res = -1;
  }
  buf = PyByteArray_AS_STRING(self);
@@ -886,7 +886,7 @@ bytearray_init(PyByteArrayObject *self, PyObject *args, PyObject *kwds)
 
  /* Append the byte */
  if (Py_SIZE(self) + 1 < self->ob_alloc) {
- Py_SIZE(self)++;
+Py_SET_SIZE(self, Py_SIZE(self) + 1);
  PyByteArray_AS_STRING(self)[Py_SIZE(self)] = '\0';
  }
  else if (PyByteArray_Resize((PyObject *)self, Py_SIZE(self)+1) < 0)

Objects/bytesobject.c

@@ -2963,7 +2963,7 @@ _PyBytes_Resize(PyObject **pv, Py_ssize_t newsize)
  }
  _Py_NewReference(*pv);
  sv = (PyBytesObject *) *pv;
-Py_SIZE(sv) = newsize;
+Py_SET_SIZE(sv, newsize);
  sv->ob_sval[newsize] = '\0';
  sv->ob_shash = -1; /* invalidate cached hash value */
  return 0;