summaryrefslogtreecommitdiff
path: root/Objects/setobject.c
diff options
context:
space:
mode:
Diffstat (limited to 'Objects/setobject.c')
-rw-r--r--Objects/setobject.c308
1 files changed, 154 insertions, 154 deletions
diff --git a/Objects/setobject.c b/Objects/setobject.c
index 0430a8dcdd..34e64e4911 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -42,8 +42,8 @@ set_lookkey(PySetObject *so, PyObject *key, register long hash)
register unsigned int perturb;
register setentry *freeslot;
register unsigned int mask = so->mask;
- setentry *ep0 = so->table;
- register setentry *ep;
+ setentry *entry0 = so->table;
+ register setentry *entry;
register int restore_error;
register int checked_error;
register int cmp;
@@ -51,26 +51,26 @@ set_lookkey(PySetObject *so, PyObject *key, register long hash)
PyObject *startkey;
i = hash & mask;
- ep = &ep0[i];
- if (ep->key == NULL || ep->key == key)
- return ep;
+ entry = &entry0[i];
+ if (entry->key == NULL || entry->key == key)
+ return entry;
restore_error = checked_error = 0;
- if (ep->key == dummy)
- freeslot = ep;
+ if (entry->key == dummy)
+ freeslot = entry;
else {
- if (ep->hash == hash) {
+ if (entry->hash == hash) {
/* error can't have been checked yet */
checked_error = 1;
if (PyErr_Occurred()) {
restore_error = 1;
PyErr_Fetch(&err_type, &err_value, &err_tb);
}
- startkey = ep->key;
+ startkey = entry->key;
cmp = PyObject_RichCompareBool(startkey, key, Py_EQ);
if (cmp < 0)
PyErr_Clear();
- if (ep0 == so->table && ep->key == startkey) {
+ if (entry0 == so->table && entry->key == startkey) {
if (cmp > 0)
goto Done;
}
@@ -78,7 +78,7 @@ set_lookkey(PySetObject *so, PyObject *key, register long hash)
/* The compare did major nasty stuff to the
* set: start over.
*/
- ep = set_lookkey(so, key, hash);
+ entry = set_lookkey(so, key, hash);
goto Done;
}
}
@@ -89,15 +89,15 @@ set_lookkey(PySetObject *so, PyObject *key, register long hash)
least likely outcome, so test for that last. */
for (perturb = hash; ; perturb >>= PERTURB_SHIFT) {
i = (i << 2) + i + perturb + 1;
- ep = &ep0[i & mask];
- if (ep->key == NULL) {
+ entry = &entry0[i & mask];
+ if (entry->key == NULL) {
if (freeslot != NULL)
- ep = freeslot;
+ entry = freeslot;
break;
}
- if (ep->key == key)
+ if (entry->key == key)
break;
- if (ep->hash == hash && ep->key != dummy) {
+ if (entry->hash == hash && entry->key != dummy) {
if (!checked_error) {
checked_error = 1;
if (PyErr_Occurred()) {
@@ -106,11 +106,11 @@ set_lookkey(PySetObject *so, PyObject *key, register long hash)
&err_tb);
}
}
- startkey = ep->key;
+ startkey = entry->key;
cmp = PyObject_RichCompareBool(startkey, key, Py_EQ);
if (cmp < 0)
PyErr_Clear();
- if (ep0 == so->table && ep->key == startkey) {
+ if (entry0 == so->table && entry->key == startkey) {
if (cmp > 0)
break;
}
@@ -118,18 +118,18 @@ set_lookkey(PySetObject *so, PyObject *key, register long hash)
/* The compare did major nasty stuff to the
* set: start over.
*/
- ep = set_lookkey(so, key, hash);
+ entry = set_lookkey(so, key, hash);
break;
}
}
- else if (ep->key == dummy && freeslot == NULL)
- freeslot = ep;
+ else if (entry->key == dummy && freeslot == NULL)
+ freeslot = entry;
}
Done:
if (restore_error)
PyErr_Restore(err_type, err_value, err_tb);
- return ep;
+ return entry;
}
/*
@@ -149,8 +149,8 @@ set_lookkey_string(PySetObject *so, PyObject *key, register long hash)
register unsigned int perturb;
register setentry *freeslot;
register unsigned int mask = so->mask;
- setentry *ep0 = so->table;
- register setentry *ep;
+ setentry *entry0 = so->table;
+ register setentry *entry;
/* Make sure this function doesn't have to handle non-string keys,
including subclasses of str; e.g., one reason to subclass
@@ -161,14 +161,14 @@ set_lookkey_string(PySetObject *so, PyObject *key, register long hash)
return set_lookkey(so, key, hash);
}
i = hash & mask;
- ep = &ep0[i];
- if (ep->key == NULL || ep->key == key)
- return ep;
- if (ep->key == dummy)
- freeslot = ep;
+ entry = &entry0[i];
+ if (entry->key == NULL || entry->key == key)
+ return entry;
+ if (entry->key == dummy)
+ freeslot = entry;
else {
- if (ep->hash == hash && _PyString_Eq(ep->key, key))
- return ep;
+ if (entry->hash == hash && _PyString_Eq(entry->key, key))
+ return entry;
freeslot = NULL;
}
@@ -176,43 +176,43 @@ set_lookkey_string(PySetObject *so, PyObject *key, register long hash)
least likely outcome, so test for that last. */
for (perturb = hash; ; perturb >>= PERTURB_SHIFT) {
i = (i << 2) + i + perturb + 1;
- ep = &ep0[i & mask];
- if (ep->key == NULL)
- return freeslot == NULL ? ep : freeslot;
- if (ep->key == key
- || (ep->hash == hash
- && ep->key != dummy
- && _PyString_Eq(ep->key, key)))
- return ep;
- if (ep->key == dummy && freeslot == NULL)
- freeslot = ep;
+ entry = &entry0[i & mask];
+ if (entry->key == NULL)
+ return freeslot == NULL ? entry : freeslot;
+ if (entry->key == key
+ || (entry->hash == hash
+ && entry->key != dummy
+ && _PyString_Eq(entry->key, key)))
+ return entry;
+ if (entry->key == dummy && freeslot == NULL)
+ freeslot = entry;
}
}
/*
-Internal routine to insert a new item into the table.
+Internal routine to insert a new key into the table.
Used both by the internal resize routine and by the public insert routine.
Eats a reference to key.
*/
static void
set_insert_key(register PySetObject *so, PyObject *key, long hash)
{
- register setentry *ep;
+ register setentry *entry;
typedef setentry *(*lookupfunc)(PySetObject *, PyObject *, long);
assert(so->lookup != NULL);
- ep = so->lookup(so, key, hash);
- if (ep->key == NULL) {
+ entry = so->lookup(so, key, hash);
+ if (entry->key == NULL) {
/* UNUSED */
so->fill++;
- ep->key = key;
- ep->hash = hash;
+ entry->key = key;
+ entry->hash = hash;
so->used++;
- } else if (ep->key == dummy) {
+ } else if (entry->key == dummy) {
/* DUMMY */
- ep->key = key;
- ep->hash = hash;
+ entry->key = key;
+ entry->hash = hash;
so->used++;
Py_DECREF(dummy);
} else {
@@ -223,14 +223,14 @@ set_insert_key(register PySetObject *so, PyObject *key, long hash)
/*
Restructure the table by allocating a new table and reinserting all
-items again. When entries have been deleted, the new table may
+keys again. When entries have been deleted, the new table may
actually be smaller than the old one.
*/
static int
set_table_resize(PySetObject *so, int minused)
{
int newsize;
- setentry *oldtable, *newtable, *ep;
+ setentry *oldtable, *newtable, *entry;
int i;
int is_oldtable_malloced;
setentry small_copy[PySet_MINSIZE];
@@ -290,19 +290,19 @@ set_table_resize(PySetObject *so, int minused)
/* Copy the data over; this is refcount-neutral for active entries;
dummy entries aren't copied over, of course */
- for (ep = oldtable; i > 0; ep++) {
- if (ep->key == NULL) {
+ for (entry = oldtable; i > 0; entry++) {
+ if (entry->key == NULL) {
/* UNUSED */
;
- } else if (ep->key == dummy) {
+ } else if (entry->key == dummy) {
/* DUMMY */
--i;
- assert(ep->key == dummy);
- Py_DECREF(ep->key);
+ assert(entry->key == dummy);
+ Py_DECREF(entry->key);
} else {
/* ACTIVE */
--i;
- set_insert_key(so, ep->key, ep->hash);
+ set_insert_key(so, entry->key, entry->hash);
}
}
@@ -346,7 +346,7 @@ static int
set_discard_internal(PySetObject *so, PyObject *key)
{
register long hash;
- register setentry *ep;
+ register setentry *entry;
PyObject *old_key;
assert (PyAnySet_Check(so));
@@ -356,12 +356,12 @@ set_discard_internal(PySetObject *so, PyObject *key)
if (hash == -1)
return -1;
}
- ep = (so->lookup)(so, key, hash);
- if (ep->key == NULL || ep->key == dummy)
+ entry = (so->lookup)(so, key, hash);
+ if (entry->key == NULL || entry->key == dummy)
return DISCARD_NOTFOUND;
- old_key = ep->key;
+ old_key = entry->key;
Py_INCREF(dummy);
- ep->key = dummy;
+ entry->key = dummy;
so->used--;
Py_DECREF(old_key);
return DISCARD_FOUND;
@@ -370,7 +370,7 @@ set_discard_internal(PySetObject *so, PyObject *key)
static void
set_clear_internal(PySetObject *so)
{
- setentry *ep, *table;
+ setentry *entry, *table;
int table_is_malloced;
int fill;
setentry small_copy[PySet_MINSIZE];
@@ -413,18 +413,18 @@ set_clear_internal(PySetObject *so)
* assert that the refcount on table is 1 now, i.e. that this function
* has unique access to it, so decref side-effects can't alter it.
*/
- for (ep = table; fill > 0; ++ep) {
+ for (entry = table; fill > 0; ++entry) {
#ifdef Py_DEBUG
assert(i < n);
++i;
#endif
- if (ep->key) {
+ if (entry->key) {
--fill;
- Py_DECREF(ep->key);
+ Py_DECREF(entry->key);
}
#ifdef Py_DEBUG
else
- assert(ep->key == NULL || ep->key == dummy);
+ assert(entry->key == NULL || entry->key == dummy);
#endif
}
@@ -446,45 +446,45 @@ set_clear_internal(PySetObject *so)
* mutates the table.
*/
static int
-set_next_internal(PySetObject *so, int *ppos, PyObject **pkey)
+set_next_internal(PySetObject *so, int *pos, PyObject **key)
{
register int i, mask;
- register setentry *ep;
+ register setentry *entry;
assert (PyAnySet_Check(so));
- i = *ppos;
+ i = *pos;
if (i < 0)
return 0;
- ep = so->table;
+ entry = so->table;
mask = so->mask;
- while (i <= mask && (ep[i].key == NULL || ep[i].key == dummy))
+ while (i <= mask && (entry[i].key == NULL || entry[i].key == dummy))
i++;
- *ppos = i+1;
+ *pos = i+1;
if (i > mask)
return 0;
- if (pkey)
- *pkey = ep[i].key;
+ if (key)
+ *key = entry[i].key;
return 1;
}
/* Methods */
static int
-set_merge_internal(PySetObject *so, PyObject *b)
+set_merge_internal(PySetObject *so, PyObject *otherset)
{
register PySetObject *other;
register int i;
setentry *entry;
assert (PyAnySet_Check(so));
- assert (PyAnySet_Check(b));
+ assert (PyAnySet_Check(otherset));
- other = (PySetObject*)b;
+ other = (PySetObject*)otherset;
if (other == so || other->used == 0)
/* a.update(a) or a.update({}); nothing to do */
return 0;
/* Do one big resize at the start, rather than
- * incrementally resizing as we insert new items. Expect
+ * incrementally resizing as we insert new keys. Expect
* that there will be no (or few) overlapping keys.
*/
if ((so->fill + other->used)*3 >= (so->mask+1)*2) {
@@ -563,18 +563,18 @@ static PySequenceMethods setiter_as_sequence = {
0, /* sq_concat */
};
-static PyObject *setiter_iternextkey(setiterobject *si)
+static PyObject *setiter_iternext(setiterobject *si)
{
PyObject *key;
register int i, mask;
- register setentry *ep;
- PySetObject *d = si->si_set;
+ register setentry *entry;
+ PySetObject *so = si->si_set;
- if (d == NULL)
+ if (so == NULL)
return NULL;
- assert (PyAnySet_Check(d));
+ assert (PyAnySet_Check(so));
- if (si->si_used != d->used) {
+ if (si->si_used != so->used) {
PyErr_SetString(PyExc_RuntimeError,
"Set changed size during iteration");
si->si_used = -1; /* Make this state sticky */
@@ -584,20 +584,20 @@ static PyObject *setiter_iternextkey(setiterobject *si)
i = si->si_pos;
if (i < 0)
goto fail;
- ep = d->table;
- mask = d->mask;
- while (i <= mask && (ep[i].key == NULL || ep[i].key == dummy))
+ entry = so->table;
+ mask = so->mask;
+ while (i <= mask && (entry[i].key == NULL || entry[i].key == dummy))
i++;
si->si_pos = i+1;
if (i > mask)
goto fail;
si->len--;
- key = ep[i].key;
+ key = entry[i].key;
Py_INCREF(key);
return key;
fail:
- Py_DECREF(d);
+ Py_DECREF(so);
si->si_set = NULL;
return NULL;
}
@@ -605,7 +605,7 @@ fail:
PyTypeObject PySetIter_Type = {
PyObject_HEAD_INIT(&PyType_Type)
0, /* ob_size */
- "Set-keyiterator", /* tp_name */
+ "setiterator", /* tp_name */
sizeof(setiterobject), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
@@ -631,7 +631,7 @@ PyTypeObject PySetIter_Type = {
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
PyObject_SelfIter, /* tp_iter */
- (iternextfunc)setiter_iternextkey, /* tp_iternext */
+ (iternextfunc)setiter_iternext, /* tp_iternext */
};
/***** Derived functions (table accesses only done with above primitives *****/
@@ -650,7 +650,7 @@ PyTypeObject PySetIter_Type = {
static PyObject *
set_update(PySetObject *so, PyObject *other)
{
- PyObject *item, *it;
+ PyObject *key, *it;
if (PyAnySet_Check(other)) {
if (set_merge_internal(so, other) == -1)
@@ -659,10 +659,10 @@ set_update(PySetObject *so, PyObject *other)
}
if (PyDict_Check(other)) {
- PyObject *value, *item;
+ PyObject *key, *value;
int pos = 0;
- while (PyDict_Next(other, &pos, &item, &value)) {
- if (set_add_internal(so, item) == -1)
+ while (PyDict_Next(other, &pos, &key, &value)) {
+ if (set_add_internal(so, key) == -1)
return NULL;
}
Py_RETURN_NONE;
@@ -672,13 +672,13 @@ set_update(PySetObject *so, PyObject *other)
if (it == NULL)
return NULL;
- while ((item = PyIter_Next(it)) != NULL) {
- if (set_add_internal(so, item) == -1) {
+ while ((key = PyIter_Next(it)) != NULL) {
+ if (set_add_internal(so, key) == -1) {
Py_DECREF(it);
- Py_DECREF(item);
+ Py_DECREF(key);
return NULL;
}
- Py_DECREF(item);
+ Py_DECREF(key);
}
Py_DECREF(it);
if (PyErr_Occurred())
@@ -754,7 +754,7 @@ set_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
static void
set_dealloc(PySetObject *so)
{
- register setentry *ep;
+ register setentry *entry;
int fill = so->fill;
PyObject_GC_UnTrack(so);
@@ -762,10 +762,10 @@ set_dealloc(PySetObject *so)
if (so->weakreflist != NULL)
PyObject_ClearWeakRefs((PyObject *) so);
- for (ep = so->table; fill > 0; ep++) {
- if (ep->key) {
+ for (entry = so->table; fill > 0; entry++) {
+ if (entry->key) {
--fill;
- Py_DECREF(ep->key);
+ Py_DECREF(entry->key);
}
}
if (so->table != so->smalltable)
@@ -778,11 +778,11 @@ set_dealloc(PySetObject *so)
static int
set_traverse(PySetObject *so, visitproc visit, void *arg)
{
- int i = 0;
- PyObject *pk;
+ int pos = 0;
+ PyObject *key;
- while (set_next_internal(so, &i, &pk))
- Py_VISIT(pk);
+ while (set_next_internal(so, &pos, &key))
+ Py_VISIT(key);
return 0;
}
@@ -834,25 +834,25 @@ set_swap_bodies(PySetObject *a, PySetObject *b)
memcpy(b->smalltable, tab, sizeof(tab));
}
- h = a->hash; a->hash = b->hash; b->hash = h;
+ h = a->hash; a->hash = b->hash; b->hash = h;
}
static int
set_contains(PySetObject *so, PyObject *key)
{
- PyObject *tmp;
+ PyObject *tmpkey;
int result;
result = set_contains_internal(so, key);
if (result == -1 && PyAnySet_Check(key)) {
PyErr_Clear();
- tmp = make_new_set(&PyFrozenSet_Type, NULL);
- if (tmp == NULL)
+ tmpkey = make_new_set(&PyFrozenSet_Type, NULL);
+ if (tmpkey == NULL)
return -1;
- set_swap_bodies((PySetObject *)tmp, (PySetObject *)key);
- result = set_contains_internal(so, tmp);
- set_swap_bodies((PySetObject *)tmp, (PySetObject *)key);
- Py_DECREF(tmp);
+ set_swap_bodies((PySetObject *)tmpkey, (PySetObject *)key);
+ result = set_contains_internal(so, tmpkey);
+ set_swap_bodies((PySetObject *)tmpkey, (PySetObject *)key);
+ Py_DECREF(tmpkey);
}
return result;
}
@@ -942,7 +942,7 @@ static PyObject *
set_intersection(PySetObject *so, PyObject *other)
{
PySetObject *result;
- PyObject *item, *it, *tmp;
+ PyObject *key, *it, *tmp;
result = (PySetObject *)make_new_set(so->ob_type, NULL);
if (result == NULL)
@@ -956,9 +956,9 @@ set_intersection(PySetObject *so, PyObject *other)
if (PyAnySet_Check(other)) {
int pos = 0;
- while (set_next_internal((PySetObject *)other, &pos, &item)) {
- if (set_contains_internal(so, item)) {
- if (set_add_internal(result, item) == -1) {
+ while (set_next_internal((PySetObject *)other, &pos, &key)) {
+ if (set_contains_internal(so, key)) {
+ if (set_add_internal(result, key) == -1) {
Py_DECREF(result);
return NULL;
}
@@ -973,16 +973,16 @@ set_intersection(PySetObject *so, PyObject *other)
return NULL;
}
- while ((item = PyIter_Next(it)) != NULL) {
- if (set_contains_internal(so, item)) {
- if (set_add_internal(result, item) == -1) {
+ while ((key = PyIter_Next(it)) != NULL) {
+ if (set_contains_internal(so, key)) {
+ if (set_add_internal(result, key) == -1) {
Py_DECREF(it);
Py_DECREF(result);
- Py_DECREF(item);
+ Py_DECREF(key);
return NULL;
}
}
- Py_DECREF(item);
+ Py_DECREF(key);
}
Py_DECREF(it);
if (PyErr_Occurred()) {
@@ -1043,19 +1043,19 @@ set_iand(PySetObject *so, PyObject *other)
static PyObject *
set_difference_update(PySetObject *so, PyObject *other)
{
- PyObject *item, *it;
+ PyObject *key, *it;
it = PyObject_GetIter(other);
if (it == NULL)
return NULL;
- while ((item = PyIter_Next(it)) != NULL) {
- if (set_discard_internal(so, item) == -1) {
+ while ((key = PyIter_Next(it)) != NULL) {
+ if (set_discard_internal(so, key) == -1) {
Py_DECREF(it);
- Py_DECREF(item);
+ Py_DECREF(key);
return NULL;
}
- Py_DECREF(item);
+ Py_DECREF(key);
}
Py_DECREF(it);
if (PyErr_Occurred())
@@ -1425,9 +1425,9 @@ set_tp_clear(PySetObject *so)
}
static PyObject *
-set_add(PySetObject *so, PyObject *item)
+set_add(PySetObject *so, PyObject *key)
{
- if (set_add_internal(so, item) == -1)
+ if (set_add_internal(so, key) == -1)
return NULL;
Py_RETURN_NONE;
}
@@ -1438,27 +1438,27 @@ PyDoc_STRVAR(add_doc,
This has no effect if the element is already present.");
static PyObject *
-set_remove(PySetObject *so, PyObject *item)
+set_remove(PySetObject *so, PyObject *key)
{
- PyObject *tmp, *result;
+ PyObject *tmpkey, *result;
int rv;
- if (PyType_IsSubtype(item->ob_type, &PySet_Type)) {
- tmp = make_new_set(&PyFrozenSet_Type, NULL);
- if (tmp == NULL)
+ if (PyType_IsSubtype(key->ob_type, &PySet_Type)) {
+ tmpkey = make_new_set(&PyFrozenSet_Type, NULL);
+ if (tmpkey == NULL)
return NULL;
- set_swap_bodies((PySetObject *)item, (PySetObject *)tmp);
- result = set_remove(so, tmp);
- set_swap_bodies((PySetObject *)item, (PySetObject *)tmp);
- Py_DECREF(tmp);
+ set_swap_bodies((PySetObject *)key, (PySetObject *)tmpkey);
+ result = set_remove(so, tmpkey);
+ set_swap_bodies((PySetObject *)key, (PySetObject *)tmpkey);
+ Py_DECREF(tmpkey);
return result;
}
- rv = set_discard_internal(so, item);
+ rv = set_discard_internal(so, key);
if (rv == -1)
return NULL;
else if (rv == DISCARD_NOTFOUND) {
- PyErr_SetObject(PyExc_KeyError, item);
+ PyErr_SetObject(PyExc_KeyError, key);
return NULL;
}
Py_RETURN_NONE;
@@ -1470,22 +1470,22 @@ PyDoc_STRVAR(remove_doc,
If the element is not a member, raise a KeyError.");
static PyObject *
-set_discard(PySetObject *so, PyObject *item)
+set_discard(PySetObject *so, PyObject *key)
{
- PyObject *tmp, *result;
+ PyObject *tmpkey, *result;
- if (PyType_IsSubtype(item->ob_type, &PySet_Type)) {
- tmp = make_new_set(&PyFrozenSet_Type, NULL);
- if (tmp == NULL)
+ if (PyType_IsSubtype(key->ob_type, &PySet_Type)) {
+ tmpkey = make_new_set(&PyFrozenSet_Type, NULL);
+ if (tmpkey == NULL)
return NULL;
- set_swap_bodies((PySetObject *)item, (PySetObject *)tmp);
- result = set_discard(so, tmp);
- set_swap_bodies((PySetObject *)item, (PySetObject *)tmp);
- Py_DECREF(tmp);
+ set_swap_bodies((PySetObject *)key, (PySetObject *)tmpkey);
+ result = set_discard(so, tmpkey);
+ set_swap_bodies((PySetObject *)key, (PySetObject *)tmpkey);
+ Py_DECREF(tmpkey);
return result;
}
- if (set_discard_internal(so, item) == -1)
+ if (set_discard_internal(so, key) == -1)
return NULL;
Py_RETURN_NONE;
}
View Lorry Controller Status