Mirror
/
cpython
mirror of https://github.com/python/cpython
4
1
Fork 0
Code Issues Releases Wiki Activity

bpo-20185: Convert list object implementation to Argument Clinic. (#542)

This commit is contained in:
Serhiy Storchaka 2017-03-11 09:19:20 +02:00 committed by GitHub
parent 0710d75425
commit fdd42c481e
3 changed files with 529 additions and 156 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Lib/idlelib/idle_test/test_calltips.py
View File

@ -58,7 +58,7 @@ class Get_signatureTest(unittest.TestCase):
'Create and return a new object. See help(type) for accurate signature.')
gtest(list.__init__,
'Initialize self. See help(type(self)) for accurate signature.')
append_doc = "L.append(object) -> None -- append object to end"
append_doc = "Append object to the end of the list."
gtest(list.append, append_doc)
gtest([].append, append_doc)
gtest(List.append, append_doc)
@ -81,9 +81,9 @@ class Get_signatureTest(unittest.TestCase):
def test_multiline_docstring(self):
# Test fewer lines than max.
self.assertEqual(signature(list),
"list() -> new empty list\n"
"list(iterable) -> new list initialized from iterable's items")
self.assertEqual(signature(range),
"range(stop) -> range object\n"
"range(start, stop[, step]) -> range object")
# Test max lines
self.assertEqual(signature(bytes), '''\

300
Objects/clinic/listobject.c.h Normal file
View File

@ -0,0 +1,300 @@
/*[clinic input]
preserve
[clinic start generated code]*/
PyDoc_STRVAR(list_insert__doc__,
"insert($self, index, object, /)\n"
"--\n"
"\n"
"Insert object before index.");
#define LIST_INSERT_METHODDEF \
{"insert", (PyCFunction)list_insert, METH_FASTCALL, list_insert__doc__},
static PyObject *
list_insert_impl(PyListObject *self, Py_ssize_t index, PyObject *object);
static PyObject *
list_insert(PyListObject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
PyObject *return_value = NULL;
Py_ssize_t index;
PyObject *object;
if (!_PyArg_ParseStack(args, nargs, "nO:insert",
&index, &object)) {
goto exit;
}
if (!_PyArg_NoStackKeywords("insert", kwnames)) {
goto exit;
}
return_value = list_insert_impl(self, index, object);
exit:
return return_value;
}
PyDoc_STRVAR(list_clear__doc__,
"clear($self, /)\n"
"--\n"
"\n"
"Remove all items from list.");
#define LIST_CLEAR_METHODDEF \
{"clear", (PyCFunction)list_clear, METH_NOARGS, list_clear__doc__},
static PyObject *
list_clear_impl(PyListObject *self);
static PyObject *
list_clear(PyListObject *self, PyObject *Py_UNUSED(ignored))
{
return list_clear_impl(self);
}
PyDoc_STRVAR(list_copy__doc__,
"copy($self, /)\n"
"--\n"
"\n"
"Return a shallow copy of the list.");
#define LIST_COPY_METHODDEF \
{"copy", (PyCFunction)list_copy, METH_NOARGS, list_copy__doc__},
static PyObject *
list_copy_impl(PyListObject *self);
static PyObject *
list_copy(PyListObject *self, PyObject *Py_UNUSED(ignored))
{
return list_copy_impl(self);
}
PyDoc_STRVAR(list_append__doc__,
"append($self, object, /)\n"
"--\n"
"\n"
"Append object to the end of the list.");
#define LIST_APPEND_METHODDEF \
{"append", (PyCFunction)list_append, METH_O, list_append__doc__},
PyDoc_STRVAR(list_extend__doc__,
"extend($self, iterable, /)\n"
"--\n"
"\n"
"Extend list by appending elements from the iterable.");
#define LIST_EXTEND_METHODDEF \
{"extend", (PyCFunction)list_extend, METH_O, list_extend__doc__},
PyDoc_STRVAR(list_pop__doc__,
"pop($self, index=-1, /)\n"
"--\n"
"\n"
"Remove and return item at index (default last).\n"
"\n"
"Raises IndexError if list is empty or index is out of range.");
#define LIST_POP_METHODDEF \
{"pop", (PyCFunction)list_pop, METH_FASTCALL, list_pop__doc__},
static PyObject *
list_pop_impl(PyListObject *self, Py_ssize_t index);
static PyObject *
list_pop(PyListObject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
PyObject *return_value = NULL;
Py_ssize_t index = -1;
if (!_PyArg_ParseStack(args, nargs, "|n:pop",
&index)) {
goto exit;
}
if (!_PyArg_NoStackKeywords("pop", kwnames)) {
goto exit;
}
return_value = list_pop_impl(self, index);
exit:
return return_value;
}
PyDoc_STRVAR(list_sort__doc__,
"sort($self, /, *, key=None, reverse=False)\n"
"--\n"
"\n"
"Stable sort *IN PLACE*.");
#define LIST_SORT_METHODDEF \
{"sort", (PyCFunction)list_sort, METH_FASTCALL, list_sort__doc__},
static PyObject *
list_sort_impl(PyListObject *self, PyObject *keyfunc, int reverse);
static PyObject *
list_sort(PyListObject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
PyObject *return_value = NULL;
static const char * const _keywords[] = {"key", "reverse", NULL};
static _PyArg_Parser _parser = {"|$Oi:sort", _keywords, 0};
PyObject *keyfunc = Py_None;
int reverse = 0;
if (!_PyArg_ParseStackAndKeywords(args, nargs, kwnames, &_parser,
&keyfunc, &reverse)) {
goto exit;
}
return_value = list_sort_impl(self, keyfunc, reverse);
exit:
return return_value;
}
PyDoc_STRVAR(list_reverse__doc__,
"reverse($self, /)\n"
"--\n"
"\n"
"Reverse *IN PLACE*.");
#define LIST_REVERSE_METHODDEF \
{"reverse", (PyCFunction)list_reverse, METH_NOARGS, list_reverse__doc__},
static PyObject *
list_reverse_impl(PyListObject *self);
static PyObject *
list_reverse(PyListObject *self, PyObject *Py_UNUSED(ignored))
{
return list_reverse_impl(self);
}
PyDoc_STRVAR(list_index__doc__,
"index($self, value, start=0, stop=sys.maxsize, /)\n"
"--\n"
"\n"
"Return first index of value.\n"
"\n"
"Raises ValueError if the value is not present.");
#define LIST_INDEX_METHODDEF \
{"index", (PyCFunction)list_index, METH_FASTCALL, list_index__doc__},
static PyObject *
list_index_impl(PyListObject *self, PyObject *value, Py_ssize_t start,
Py_ssize_t stop);
static PyObject *
list_index(PyListObject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
PyObject *return_value = NULL;
PyObject *value;
Py_ssize_t start = 0;
Py_ssize_t stop = PY_SSIZE_T_MAX;
if (!_PyArg_ParseStack(args, nargs, "O|O&O&:index",
&value, _PyEval_SliceIndex, &start, _PyEval_SliceIndex, &stop)) {
goto exit;
}
if (!_PyArg_NoStackKeywords("index", kwnames)) {
goto exit;
}
return_value = list_index_impl(self, value, start, stop);
exit:
return return_value;
}
PyDoc_STRVAR(list_count__doc__,
"count($self, value, /)\n"
"--\n"
"\n"
"Return number of occurrences of value.");
#define LIST_COUNT_METHODDEF \
{"count", (PyCFunction)list_count, METH_O, list_count__doc__},
PyDoc_STRVAR(list_remove__doc__,
"remove($self, value, /)\n"
"--\n"
"\n"
"Remove first occurrence of value.\n"
"\n"
"Raises ValueError if the value is not present.");
#define LIST_REMOVE_METHODDEF \
{"remove", (PyCFunction)list_remove, METH_O, list_remove__doc__},
PyDoc_STRVAR(list___init____doc__,
"list(iterable=(), /)\n"
"--\n"
"\n"
"Built-in mutable sequence.\n"
"\n"
"If no argument is given, the constructor creates a new empty list.\n"
"The argument must be an iterable if specified.");
static int
list___init___impl(PyListObject *self, PyObject *iterable);
static int
list___init__(PyObject *self, PyObject *args, PyObject *kwargs)
{
int return_value = -1;
PyObject *iterable = NULL;
if ((Py_TYPE(self) == &PyList_Type) &&
!_PyArg_NoKeywords("list", kwargs)) {
goto exit;
}
if (!PyArg_UnpackTuple(args, "list",
0, 1,
&iterable)) {
goto exit;
}
return_value = list___init___impl((PyListObject *)self, iterable);
exit:
return return_value;
}
PyDoc_STRVAR(list___sizeof____doc__,
"__sizeof__($self, /)\n"
"--\n"
"\n"
"Return the size of the list in memory, in bytes.");
#define LIST___SIZEOF___METHODDEF \
{"__sizeof__", (PyCFunction)list___sizeof__, METH_NOARGS, list___sizeof____doc__},
static PyObject *
list___sizeof___impl(PyListObject *self);
static PyObject *
list___sizeof__(PyListObject *self, PyObject *Py_UNUSED(ignored))
{
return list___sizeof___impl(self);
}
PyDoc_STRVAR(list___reversed____doc__,
"__reversed__($self, /)\n"
"--\n"
"\n"
"Return a reverse iterator over the list.");
#define LIST___REVERSED___METHODDEF \
{"__reversed__", (PyCFunction)list___reversed__, METH_NOARGS, list___reversed____doc__},
static PyObject *
list___reversed___impl(PyListObject *self);
static PyObject *
list___reversed__(PyListObject *self, PyObject *Py_UNUSED(ignored))
{
return list___reversed___impl(self);
}
/*[clinic end generated code: output=2a3b75efcf858ed5 input=a9049054013a1b77]*/

377
Objects/listobject.c
View File

@ -9,6 +9,13 @@
#include <sys/types.h> /* For size_t */
#endif
/*[clinic input]
class list "PyListObject *" "&PyList_Type"
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=f9b222678f9f71e0]*/
#include "clinic/listobject.c.h"
/* Ensure ob_item has room for at least newsize elements, and set
* ob_size to newsize. If newsize > ob_size on entry, the content
* of the new slots at exit is undefined heap trash; it's the caller's
@ -542,7 +549,7 @@ list_repeat(PyListObject *a, Py_ssize_t n)
}
static int
list_clear(PyListObject *a)
_list_clear(PyListObject *a)
{
Py_ssize_t i;
PyObject **item = a->ob_item;
@ -624,7 +631,7 @@ list_ass_slice(PyListObject *a, Py_ssize_t ilow, Py_ssize_t ihigh, PyObject *v)
d = n - norig;
if (Py_SIZE(a) + d == 0) {
Py_XDECREF(v_as_SF);
return list_clear(a);
return _list_clear(a);
}
item = a->ob_item;
/* recycle the items that we are about to remove */
@ -700,7 +707,7 @@ list_inplace_repeat(PyListObject *self, Py_ssize_t n)
}
if (n < 1) {
(void)list_clear(self);
(void)_list_clear(self);
Py_INCREF(self);
return (PyObject *)self;
}
@ -740,45 +747,86 @@ list_ass_item(PyListObject *a, Py_ssize_t i, PyObject *v)
return 0;
}
/*[clinic input]
list.insert
index: Py_ssize_t
object: object
/
Insert object before index.
[clinic start generated code]*/
static PyObject *
listinsert(PyListObject *self, PyObject *args)
list_insert_impl(PyListObject *self, Py_ssize_t index, PyObject *object)
/*[clinic end generated code: output=7f35e32f60c8cb78 input=858514cf894c7eab]*/
{
Py_ssize_t i;
PyObject *v;
if (!PyArg_ParseTuple(args, "nO:insert", &i, &v))
return NULL;
if (ins1(self, i, v) == 0)
if (ins1(self, index, object) == 0)
Py_RETURN_NONE;
return NULL;
}
/*[clinic input]
list.clear
Remove all items from list.
[clinic start generated code]*/
static PyObject *
listclear(PyListObject *self)
list_clear_impl(PyListObject *self)
/*[clinic end generated code: output=67a1896c01f74362 input=ca3c1646856742f6]*/
{
list_clear(self);
_list_clear(self);
Py_RETURN_NONE;
}
/*[clinic input]
list.copy
Return a shallow copy of the list.
[clinic start generated code]*/
static PyObject *
listcopy(PyListObject *self)
list_copy_impl(PyListObject *self)
/*[clinic end generated code: output=ec6b72d6209d418e input=6453ab159e84771f]*/
{
return list_slice(self, 0, Py_SIZE(self));
}
/*[clinic input]
list.append
object: object
/
Append object to the end of the list.
[clinic start generated code]*/
static PyObject *
listappend(PyListObject *self, PyObject *v)
list_append(PyListObject *self, PyObject *object)
/*[clinic end generated code: output=7c096003a29c0eae input=43a3fe48a7066e91]*/
{
if (app1(self, v) == 0)
if (app1(self, object) == 0)
Py_RETURN_NONE;
return NULL;
}
/*[clinic input]
list.extend
iterable: object
/
Extend list by appending elements from the iterable.
[clinic start generated code]*/
static PyObject *
listextend(PyListObject *self, PyObject *b)
list_extend(PyListObject *self, PyObject *iterable)
/*[clinic end generated code: output=630fb3bca0c8e789 input=9ec5ba3a81be3a4d]*/
{
PyObject *it; /* iter(v) */
Py_ssize_t m; /* size of self */
Py_ssize_t n; /* guess for size of b */
Py_ssize_t n; /* guess for size of iterable */
Py_ssize_t mn; /* m + n */
Py_ssize_t i;
PyObject *(*iternext)(PyObject *);
@ -787,15 +835,16 @@ listextend(PyListObject *self, PyObject *b)
1) lists and tuples which can use PySequence_Fast ops
2) extending self to self requires making a copy first
*/
if (PyList_CheckExact(b) || PyTuple_CheckExact(b) || (PyObject *)self == b) {
if (PyList_CheckExact(iterable) || PyTuple_CheckExact(iterable) ||
(PyObject *)self == iterable) {
PyObject **src, **dest;
b = PySequence_Fast(b, "argument must be iterable");
if (!b)
iterable = PySequence_Fast(iterable, "argument must be iterable");
if (!iterable)
return NULL;
n = PySequence_Fast_GET_SIZE(b);
n = PySequence_Fast_GET_SIZE(iterable);
if (n == 0) {
/* short circuit when b is empty */
Py_DECREF(b);
/* short circuit when iterable is empty */
Py_DECREF(iterable);
Py_RETURN_NONE;
}
m = Py_SIZE(self);
@ -803,33 +852,33 @@ listextend(PyListObject *self, PyObject *b)
an overflow on any relevant platform */
assert(m < PY_SSIZE_T_MAX - n);
if (list_resize(self, m + n) < 0) {
Py_DECREF(b);
Py_DECREF(iterable);
return NULL;
}
/* note that we may still have self == b here for the
/* note that we may still have self == iterable here for the
* situation a.extend(a), but the following code works
* in that case too. Just make sure to resize self
* before calling PySequence_Fast_ITEMS.
*/
/* populate the end of self with b's items */
src = PySequence_Fast_ITEMS(b);
/* populate the end of self with iterable's items */
src = PySequence_Fast_ITEMS(iterable);
dest = self->ob_item + m;
for (i = 0; i < n; i++) {
PyObject *o = src[i];
Py_INCREF(o);
dest[i] = o;
}
Py_DECREF(b);
Py_DECREF(iterable);
Py_RETURN_NONE;
}
it = PyObject_GetIter(b);
it = PyObject_GetIter(iterable);
if (it == NULL)
return NULL;
iternext = *it->ob_type->tp_iternext;
/* Guess a result list size. */
n = PyObject_LengthHint(b, 8);
n = PyObject_LengthHint(iterable, 8);
if (n < 0) {
Py_DECREF(it);
return NULL;
@ -890,9 +939,9 @@ listextend(PyListObject *self, PyObject *b)
}
PyObject *
_PyList_Extend(PyListObject *self, PyObject *b)
_PyList_Extend(PyListObject *self, PyObject *iterable)
{
return listextend(self, b);
return list_extend(self, iterable);
}
static PyObject *
@ -900,7 +949,7 @@ list_inplace_concat(PyListObject *self, PyObject *other)
{
PyObject *result;
result = listextend(self, other);
result = list_extend(self, other);
if (result == NULL)
return result;
Py_DECREF(result);
@ -908,29 +957,37 @@ list_inplace_concat(PyListObject *self, PyObject *other)
return (PyObject *)self;
}
/*[clinic input]
list.pop
index: Py_ssize_t = -1
/
Remove and return item at index (default last).
Raises IndexError if list is empty or index is out of range.
[clinic start generated code]*/
static PyObject *
listpop(PyListObject *self, PyObject *args)
list_pop_impl(PyListObject *self, Py_ssize_t index)
/*[clinic end generated code: output=6bd69dcb3f17eca8 input=b83675976f329e6f]*/
{
Py_ssize_t i = -1;
PyObject *v;
int status;
if (!PyArg_ParseTuple(args, "|n:pop", &i))
return NULL;
if (Py_SIZE(self) == 0) {
/* Special-case most common failure cause */
PyErr_SetString(PyExc_IndexError, "pop from empty list");
return NULL;
}
if (i < 0)
i += Py_SIZE(self);
if (i < 0 || i >= Py_SIZE(self)) {
if (index < 0)
index += Py_SIZE(self);
if (index < 0 || index >= Py_SIZE(self)) {
PyErr_SetString(PyExc_IndexError, "pop index out of range");
return NULL;
}
v = self->ob_item[i];
if (i == Py_SIZE(self) - 1) {
v = self->ob_item[index];
if (index == Py_SIZE(self) - 1) {
status = list_resize(self, Py_SIZE(self) - 1);
if (status >= 0)
return v; /* and v now owns the reference the list had */
@ -938,7 +995,7 @@ listpop(PyListObject *self, PyObject *args)
return NULL;
}
Py_INCREF(v);
status = list_ass_slice(self, i, i+1, (PyObject *)NULL);
status = list_ass_slice(self, index, index+1, (PyObject *)NULL);
if (status < 0) {
Py_DECREF(v);
return NULL;
@ -1906,8 +1963,19 @@ reverse_sortslice(sortslice *s, Py_ssize_t n)
* list will be some permutation of its input state (nothing is lost or
* duplicated).
*/
/*[clinic input]
list.sort
*
key as keyfunc: object = None
reverse: int(c_default="0") = False
Stable sort *IN PLACE*.
[clinic start generated code]*/
static PyObject *
listsort_impl(PyListObject *self, PyObject *keyfunc, int reverse)
list_sort_impl(PyListObject *self, PyObject *keyfunc, int reverse)
/*[clinic end generated code: output=57b9f9c5e23fbe42 input=5029c13c9209d86a]*/
{
MergeState ms;
Py_ssize_t nremaining;
@ -1921,7 +1989,7 @@ listsort_impl(PyListObject *self, PyObject *keyfunc, int reverse)
PyObject **keys;
assert(self != NULL);
assert (PyList_Check(self));
assert(PyList_Check(self));
if (keyfunc == Py_None)
keyfunc = NULL;
@ -2057,7 +2125,7 @@ keyfunc_fail:
self->ob_item = saved_ob_item;
self->allocated = saved_allocated;
if (final_ob_item != NULL) {
/* we cannot use list_clear() for this because it does not
/* we cannot use _list_clear() for this because it does not
guarantee that the list is really empty when it returns */
while (--i >= 0) {
Py_XDECREF(final_ob_item[i]);
@ -2070,19 +2138,6 @@ keyfunc_fail:
#undef IFLT
#undef ISLT
static PyObject *
listsort(PyListObject *self, PyObject *args, PyObject *kwds)
{
static char *kwlist[] = {"key", "reverse", 0};
PyObject *keyfunc = NULL;
int reverse = 0;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|$Oi:sort",
kwlist, &keyfunc, &reverse))
return NULL;
return listsort_impl(self, keyfunc, reverse);
}
int
PyList_Sort(PyObject *v)
{
@ -2090,15 +2145,22 @@ PyList_Sort(PyObject *v)
PyErr_BadInternalCall();
return -1;
}
v = listsort_impl((PyListObject *)v, NULL, 0);
v = list_sort_impl((PyListObject *)v, NULL, 0);
if (v == NULL)
return -1;
Py_DECREF(v);
return 0;
}
/*[clinic input]
list.reverse
Reverse *IN PLACE*.
[clinic start generated code]*/
static PyObject *
listreverse(PyListObject *self)
list_reverse_impl(PyListObject *self)
/*[clinic end generated code: output=482544fc451abea9 input=eefd4c3ae1bc9887]*/
{
if (Py_SIZE(self) > 1)
reverse_slice(self->ob_item, self->ob_item + Py_SIZE(self));
@ -2144,16 +2206,26 @@ PyList_AsTuple(PyObject *v)
return w;
}
static PyObject *
listindex(PyListObject *self, PyObject *args)
{
Py_ssize_t i, start=0, stop=Py_SIZE(self);
PyObject *v;
/*[clinic input]
list.index
value: object
start: object(converter="_PyEval_SliceIndex", type="Py_ssize_t") = 0
stop: object(converter="_PyEval_SliceIndex", type="Py_ssize_t", c_default="PY_SSIZE_T_MAX") = sys.maxsize
/
Return first index of value.
Raises ValueError if the value is not present.
[clinic start generated code]*/
static PyObject *
list_index_impl(PyListObject *self, PyObject *value, Py_ssize_t start,
Py_ssize_t stop)
/*[clinic end generated code: output=ec51b88787e4e481 input=70b7247e398a6999]*/
{
Py_ssize_t i;
if (!PyArg_ParseTuple(args, "O|O&O&:index", &v,
_PyEval_SliceIndex, &start,
_PyEval_SliceIndex, &stop))
return NULL;
if (start < 0) {
start += Py_SIZE(self);
if (start < 0)
@ -2165,24 +2237,34 @@ listindex(PyListObject *self, PyObject *args)
stop = 0;
}
for (i = start; i < stop && i < Py_SIZE(self); i++) {
int cmp = PyObject_RichCompareBool(self->ob_item[i], v, Py_EQ);
int cmp = PyObject_RichCompareBool(self->ob_item[i], value, Py_EQ);
if (cmp > 0)
return PyLong_FromSsize_t(i);
else if (cmp < 0)
return NULL;
}
PyErr_Format(PyExc_ValueError, "%R is not in list", v);
PyErr_Format(PyExc_ValueError, "%R is not in list", value);
return NULL;
}
/*[clinic input]
list.count
value: object
/
Return number of occurrences of value.
[clinic start generated code]*/
static PyObject *
listcount(PyListObject *self, PyObject *v)
list_count(PyListObject *self, PyObject *value)
/*[clinic end generated code: output=b1f5d284205ae714 input=3bdc3a5e6f749565]*/
{
Py_ssize_t count = 0;
Py_ssize_t i;
for (i = 0; i < Py_SIZE(self); i++) {
int cmp = PyObject_RichCompareBool(self->ob_item[i], v, Py_EQ);
int cmp = PyObject_RichCompareBool(self->ob_item[i], value, Py_EQ);
if (cmp > 0)
count++;
else if (cmp < 0)
@ -2191,13 +2273,25 @@ listcount(PyListObject *self, PyObject *v)
return PyLong_FromSsize_t(count);
}
/*[clinic input]
list.remove
value: object
/
Remove first occurrence of value.
Raises ValueError if the value is not present.
[clinic start generated code]*/
static PyObject *
listremove(PyListObject *self, PyObject *v)
list_remove(PyListObject *self, PyObject *value)
/*[clinic end generated code: output=f087e1951a5e30d1 input=2dc2ba5bb2fb1f82]*/
{
Py_ssize_t i;
for (i = 0; i < Py_SIZE(self); i++) {
int cmp = PyObject_RichCompareBool(self->ob_item[i], v, Py_EQ);
int cmp = PyObject_RichCompareBool(self->ob_item[i], value, Py_EQ);
if (cmp > 0) {
if (list_ass_slice(self, i, i+1,
(PyObject *)NULL) == 0)
@ -2289,16 +2383,22 @@ list_richcompare(PyObject *v, PyObject *w, int op)
return PyObject_RichCompare(vl->ob_item[i], wl->ob_item[i], op);
}
/*[clinic input]
list.__init__
iterable: object(c_default="NULL") = ()
/
Built-in mutable sequence.
If no argument is given, the constructor creates a new empty list.
The argument must be an iterable if specified.
[clinic start generated code]*/
static int
list_init(PyListObject *self, PyObject *args, PyObject *kw)
list___init___impl(PyListObject *self, PyObject *iterable)
/*[clinic end generated code: output=0f3c21379d01de48 input=b3f3fe7206af8f6b]*/
{
PyObject *arg = NULL;
if (!_PyArg_NoKeywords("list()", kw))
return -1;
if (!PyArg_UnpackTuple(args, "list", 0, 1, &arg))
return -1;
/* Verify list invariants established by PyType_GenericAlloc() */
assert(0 <= Py_SIZE(self));
assert(Py_SIZE(self) <= self->allocated || self->allocated == -1);
@ -2307,10 +2407,10 @@ list_init(PyListObject *self, PyObject *args, PyObject *kw)
/* Empty previous contents */
if (self->ob_item != NULL) {
(void)list_clear(self);
(void)_list_clear(self);
}
if (arg != NULL) {
PyObject *rv = listextend(self, arg);
if (iterable != NULL) {
PyObject *rv = list_extend(self, iterable);
if (rv == NULL)
return -1;
Py_DECREF(rv);
@ -2318,8 +2418,15 @@ list_init(PyListObject *self, PyObject *args, PyObject *kw)
return 0;
}
/*[clinic input]
list.__sizeof__
Return the size of the list in memory, in bytes.
[clinic start generated code]*/
static PyObject *
list_sizeof(PyListObject *self)
list___sizeof___impl(PyListObject *self)
/*[clinic end generated code: output=3417541f95f9a53e input=b8030a5d5ce8a187]*/
{
Py_ssize_t res;
@ -2328,57 +2435,23 @@ list_sizeof(PyListObject *self)
}
static PyObject *list_iter(PyObject *seq);
static PyObject *list_reversed(PyListObject* seq, PyObject* unused);
PyDoc_STRVAR(getitem_doc,
"x.__getitem__(y) <==> x[y]");
PyDoc_STRVAR(reversed_doc,
"L.__reversed__() -- return a reverse iterator over the list");
PyDoc_STRVAR(sizeof_doc,
"L.__sizeof__() -- size of L in memory, in bytes");
PyDoc_STRVAR(clear_doc,
"L.clear() -> None -- remove all items from L");
PyDoc_STRVAR(copy_doc,
"L.copy() -> list -- a shallow copy of L");
PyDoc_STRVAR(append_doc,
"L.append(object) -> None -- append object to end");
PyDoc_STRVAR(extend_doc,
"L.extend(iterable) -> None -- extend list by appending elements from the iterable");
PyDoc_STRVAR(insert_doc,
"L.insert(index, object) -- insert object before index");
PyDoc_STRVAR(pop_doc,
"L.pop([index]) -> item -- remove and return item at index (default last).\n"
"Raises IndexError if list is empty or index is out of range.");
PyDoc_STRVAR(remove_doc,
"L.remove(value) -> None -- remove first occurrence of value.\n"
"Raises ValueError if the value is not present.");
PyDoc_STRVAR(index_doc,
"L.index(value, [start, [stop]]) -> integer -- return first index of value.\n"
"Raises ValueError if the value is not present.");
PyDoc_STRVAR(count_doc,
"L.count(value) -> integer -- return number of occurrences of value");
PyDoc_STRVAR(reverse_doc,
"L.reverse() -- reverse *IN PLACE*");
PyDoc_STRVAR(sort_doc,
"L.sort(key=None, reverse=False) -> None -- stable sort *IN PLACE*");
static PyObject *list_subscript(PyListObject*, PyObject*);
static PyMethodDef list_methods[] = {
{"__getitem__", (PyCFunction)list_subscript, METH_O|METH_COEXIST, getitem_doc},
{"__reversed__",(PyCFunction)list_reversed, METH_NOARGS, reversed_doc},
{"__sizeof__", (PyCFunction)list_sizeof, METH_NOARGS, sizeof_doc},
{"clear", (PyCFunction)listclear, METH_NOARGS, clear_doc},
{"copy", (PyCFunction)listcopy, METH_NOARGS, copy_doc},
{"append", (PyCFunction)listappend, METH_O, append_doc},
{"insert", (PyCFunction)listinsert, METH_VARARGS, insert_doc},
{"extend", (PyCFunction)listextend, METH_O, extend_doc},
{"pop", (PyCFunction)listpop, METH_VARARGS, pop_doc},
{"remove", (PyCFunction)listremove, METH_O, remove_doc},
{"index", (PyCFunction)listindex, METH_VARARGS, index_doc},
{"count", (PyCFunction)listcount, METH_O, count_doc},
{"reverse", (PyCFunction)listreverse, METH_NOARGS, reverse_doc},
{"sort", (PyCFunction)listsort, METH_VARARGS | METH_KEYWORDS, sort_doc},
{"__getitem__", (PyCFunction)list_subscript, METH_O|METH_COEXIST, "x.__getitem__(y) <==> x[y]"},
LIST___REVERSED___METHODDEF
LIST___SIZEOF___METHODDEF
LIST_CLEAR_METHODDEF
LIST_COPY_METHODDEF
LIST_APPEND_METHODDEF
LIST_INSERT_METHODDEF
LIST_EXTEND_METHODDEF
LIST_POP_METHODDEF
LIST_REMOVE_METHODDEF
LIST_INDEX_METHODDEF
LIST_COUNT_METHODDEF
LIST_REVERSE_METHODDEF
LIST_SORT_METHODDEF
{NULL, NULL} /* sentinel */
};
@ -2395,10 +2468,6 @@ static PySequenceMethods list_as_sequence = {
(ssizeargfunc)list_inplace_repeat, /* sq_inplace_repeat */
};
PyDoc_STRVAR(list_doc,
"list() -> new empty list\n"
"list(iterable) -> new list initialized from iterable's items");
static PyObject *
list_subscript(PyListObject* self, PyObject* item)
{
@ -2640,10 +2709,10 @@ PyTypeObject PyList_Type = {
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_BASETYPE | Py_TPFLAGS_LIST_SUBCLASS, /* tp_flags */
list_doc, /* tp_doc */
Py_TPFLAGS_BASETYPE | Py_TPFLAGS_LIST_SUBCLASS, /* tp_flags */
list___init____doc__, /* tp_doc */
(traverseproc)list_traverse, /* tp_traverse */
(inquiry)list_clear, /* tp_clear */
(inquiry)_list_clear, /* tp_clear */
list_richcompare, /* tp_richcompare */
0, /* tp_weaklistoffset */
list_iter, /* tp_iter */
@ -2656,13 +2725,12 @@ PyTypeObject PyList_Type = {
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)list_init, /* tp_init */
(initproc)list___init__, /* tp_init */
PyType_GenericAlloc, /* tp_alloc */
PyType_GenericNew, /* tp_new */
PyObject_GC_Del, /* tp_free */
};
/*********************** List Iterator **************************/
typedef struct {
@ -2671,7 +2739,6 @@ typedef struct {
PyListObject *it_seq; /* Set to NULL when iterator is exhausted */
} listiterobject;
static PyObject *list_iter(PyObject *);
static void listiter_dealloc(listiterobject *);
static int listiter_traverse(listiterobject *, visitproc, void *);
static PyObject *listiter_next(listiterobject *);
@ -2825,7 +2892,6 @@ typedef struct {
PyListObject *it_seq; /* Set to NULL when iterator is exhausted */
} listreviterobject;
static PyObject *list_reversed(PyListObject *, PyObject *);
static void listreviter_dealloc(listreviterobject *);
static int listreviter_traverse(listreviterobject *, visitproc, void *);
static PyObject *listreviter_next(listreviterobject *);
@ -2873,18 +2939,25 @@ PyTypeObject PyListRevIter_Type = {
0,
};
/*[clinic input]
list.__reversed__
Return a reverse iterator over the list.
[clinic start generated code]*/
static PyObject *
list_reversed(PyListObject *seq, PyObject *unused)
list___reversed___impl(PyListObject *self)
/*[clinic end generated code: output=b166f073208c888c input=eadb6e17f8a6a280]*/
{
listreviterobject *it;
it = PyObject_GC_New(listreviterobject, &PyListRevIter_Type);
if (it == NULL)
return NULL;
assert(PyList_Check(seq));
it->it_index = PyList_GET_SIZE(seq) - 1;
Py_INCREF(seq);
it->it_seq = seq;
assert(PyList_Check(self));
it->it_index = PyList_GET_SIZE(self) - 1;
Py_INCREF(self);
it->it_seq = self;
PyObject_GC_Track(it);
return (PyObject *)it;
}