diff --git a/Modules/_collectionsmodule.c b/Modules/_collectionsmodule.c
index 65d556c5a0e5b4..c0448577140220 100644
--- a/Modules/_collectionsmodule.c
+++ b/Modules/_collectionsmodule.c
@@ -264,7 +264,7 @@ PyDoc_STRVAR(popleft_doc, "Remove and return the leftmost element.");
#define NEEDS_TRIM(deque, maxlen) ((size_t)(maxlen) < (size_t)(Py_SIZE(deque)))
-static int
+static inline int
deque_append_internal(dequeobject *deque, PyObject *item, Py_ssize_t maxlen)
{
if (deque->rightindex == BLOCKLEN - 1) {
@@ -301,7 +301,7 @@ deque_append(dequeobject *deque, PyObject *item)
PyDoc_STRVAR(append_doc, "Add an element to the right side of the deque.");
-static int
+static inline int
deque_appendleft_internal(dequeobject *deque, PyObject *item, Py_ssize_t maxlen)
{
if (deque->leftindex == 0) {
@@ -403,28 +403,10 @@ deque_extend(dequeobject *deque, PyObject *iterable)
iternext = *Py_TYPE(it)->tp_iternext;
while ((item = iternext(it)) != NULL) {
- if (deque->rightindex == BLOCKLEN - 1) {
- block *b = newblock();
- if (b == NULL) {
- Py_DECREF(item);
- Py_DECREF(it);
- return NULL;
- }
- b->leftlink = deque->rightblock;
- CHECK_END(deque->rightblock->rightlink);
- deque->rightblock->rightlink = b;
- deque->rightblock = b;
- MARK_END(b->rightlink);
- deque->rightindex = -1;
- }
- Py_SIZE(deque)++;
- deque->rightindex++;
- deque->rightblock->data[deque->rightindex] = item;
- if (NEEDS_TRIM(deque, maxlen)) {
- PyObject *olditem = deque_popleft(deque, NULL);
- Py_DECREF(olditem);
- } else {
- deque->state++;
+ if (deque_append_internal(deque, item, maxlen) == -1) {
+ Py_DECREF(item);
+ Py_DECREF(it);
+ return NULL;
}
}
return finalize_iterator(it);
@@ -468,28 +450,10 @@ deque_extendleft(dequeobject *deque, PyObject *iterable)
iternext = *Py_TYPE(it)->tp_iternext;
while ((item = iternext(it)) != NULL) {
- if (deque->leftindex == 0) {
- block *b = newblock();
- if (b == NULL) {
- Py_DECREF(item);
- Py_DECREF(it);
- return NULL;
- }
- b->rightlink = deque->leftblock;
- CHECK_END(deque->leftblock->leftlink);
- deque->leftblock->leftlink = b;
- deque->leftblock = b;
- MARK_END(b->leftlink);
- deque->leftindex = BLOCKLEN;
- }
- Py_SIZE(deque)++;
- deque->leftindex--;
- deque->leftblock->data[deque->leftindex] = item;
- if (NEEDS_TRIM(deque, maxlen)) {
- PyObject *olditem = deque_pop(deque, NULL);
- Py_DECREF(olditem);
- } else {
- deque->state++;
+ if (deque_appendleft_internal(deque, item, maxlen) == -1) {
+ Py_DECREF(item);
+ Py_DECREF(it);
+ return NULL;
}
}
return finalize_iterator(it);
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