AppPkg/Applications/Python/Python-2.7.10: Initial Checkin part 3/5.
The Objects directory from the cPython 2.7.10 distribution, along with the LICENSE and README files. These files are unchanged and set the baseline for subsequent commits. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Daryl McDaniel <edk2-lists@mc2research.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18739 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Daryl McDaniel
committed by
darylm503
darylm503
parent
7eb75bccb5
commit
53b2ba5790
230
AppPkg/Applications/Python/Python-2.7.10/Objects/iterobject.c
Normal file
230
AppPkg/Applications/Python/Python-2.7.10/Objects/iterobject.c
Normal file
@ -0,0 +1,230 @@
|
||||
/* Iterator objects */
|
||||
|
||||
#include "Python.h"
|
||||
|
||||
typedef struct {
|
||||
PyObject_HEAD
|
||||
long it_index;
|
||||
PyObject *it_seq; /* Set to NULL when iterator is exhausted */
|
||||
} seqiterobject;
|
||||
|
||||
PyObject *
|
||||
PySeqIter_New(PyObject *seq)
|
||||
{
|
||||
seqiterobject *it;
|
||||
|
||||
if (!PySequence_Check(seq)) {
|
||||
PyErr_BadInternalCall();
|
||||
return NULL;
|
||||
}
|
||||
it = PyObject_GC_New(seqiterobject, &PySeqIter_Type);
|
||||
if (it == NULL)
|
||||
return NULL;
|
||||
it->it_index = 0;
|
||||
Py_INCREF(seq);
|
||||
it->it_seq = seq;
|
||||
_PyObject_GC_TRACK(it);
|
||||
return (PyObject *)it;
|
||||
}
|
||||
|
||||
static void
|
||||
iter_dealloc(seqiterobject *it)
|
||||
{
|
||||
_PyObject_GC_UNTRACK(it);
|
||||
Py_XDECREF(it->it_seq);
|
||||
PyObject_GC_Del(it);
|
||||
}
|
||||
|
||||
static int
|
||||
iter_traverse(seqiterobject *it, visitproc visit, void *arg)
|
||||
{
|
||||
Py_VISIT(it->it_seq);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
iter_iternext(PyObject *iterator)
|
||||
{
|
||||
seqiterobject *it;
|
||||
PyObject *seq;
|
||||
PyObject *result;
|
||||
|
||||
assert(PySeqIter_Check(iterator));
|
||||
it = (seqiterobject *)iterator;
|
||||
seq = it->it_seq;
|
||||
if (seq == NULL)
|
||||
return NULL;
|
||||
|
||||
result = PySequence_GetItem(seq, it->it_index);
|
||||
if (result != NULL) {
|
||||
it->it_index++;
|
||||
return result;
|
||||
}
|
||||
if (PyErr_ExceptionMatches(PyExc_IndexError) ||
|
||||
PyErr_ExceptionMatches(PyExc_StopIteration))
|
||||
{
|
||||
PyErr_Clear();
|
||||
Py_DECREF(seq);
|
||||
it->it_seq = NULL;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
iter_len(seqiterobject *it)
|
||||
{
|
||||
Py_ssize_t seqsize, len;
|
||||
|
||||
if (it->it_seq) {
|
||||
seqsize = PySequence_Size(it->it_seq);
|
||||
if (seqsize == -1)
|
||||
return NULL;
|
||||
len = seqsize - it->it_index;
|
||||
if (len >= 0)
|
||||
return PyInt_FromSsize_t(len);
|
||||
}
|
||||
return PyInt_FromLong(0);
|
||||
}
|
||||
|
||||
PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it)).");
|
||||
|
||||
static PyMethodDef seqiter_methods[] = {
|
||||
{"__length_hint__", (PyCFunction)iter_len, METH_NOARGS, length_hint_doc},
|
||||
{NULL, NULL} /* sentinel */
|
||||
};
|
||||
|
||||
PyTypeObject PySeqIter_Type = {
|
||||
PyVarObject_HEAD_INIT(&PyType_Type, 0)
|
||||
"iterator", /* tp_name */
|
||||
sizeof(seqiterobject), /* tp_basicsize */
|
||||
0, /* tp_itemsize */
|
||||
/* methods */
|
||||
(destructor)iter_dealloc, /* tp_dealloc */
|
||||
0, /* tp_print */
|
||||
0, /* tp_getattr */
|
||||
0, /* tp_setattr */
|
||||
0, /* tp_compare */
|
||||
0, /* tp_repr */
|
||||
0, /* tp_as_number */
|
||||
0, /* tp_as_sequence */
|
||||
0, /* tp_as_mapping */
|
||||
0, /* tp_hash */
|
||||
0, /* tp_call */
|
||||
0, /* tp_str */
|
||||
PyObject_GenericGetAttr, /* tp_getattro */
|
||||
0, /* tp_setattro */
|
||||
0, /* tp_as_buffer */
|
||||
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
|
||||
0, /* tp_doc */
|
||||
(traverseproc)iter_traverse, /* tp_traverse */
|
||||
0, /* tp_clear */
|
||||
0, /* tp_richcompare */
|
||||
0, /* tp_weaklistoffset */
|
||||
PyObject_SelfIter, /* tp_iter */
|
||||
iter_iternext, /* tp_iternext */
|
||||
seqiter_methods, /* tp_methods */
|
||||
0, /* tp_members */
|
||||
};
|
||||
|
||||
/* -------------------------------------- */
|
||||
|
||||
typedef struct {
|
||||
PyObject_HEAD
|
||||
PyObject *it_callable; /* Set to NULL when iterator is exhausted */
|
||||
PyObject *it_sentinel; /* Set to NULL when iterator is exhausted */
|
||||
} calliterobject;
|
||||
|
||||
PyObject *
|
||||
PyCallIter_New(PyObject *callable, PyObject *sentinel)
|
||||
{
|
||||
calliterobject *it;
|
||||
it = PyObject_GC_New(calliterobject, &PyCallIter_Type);
|
||||
if (it == NULL)
|
||||
return NULL;
|
||||
Py_INCREF(callable);
|
||||
it->it_callable = callable;
|
||||
Py_INCREF(sentinel);
|
||||
it->it_sentinel = sentinel;
|
||||
_PyObject_GC_TRACK(it);
|
||||
return (PyObject *)it;
|
||||
}
|
||||
static void
|
||||
calliter_dealloc(calliterobject *it)
|
||||
{
|
||||
_PyObject_GC_UNTRACK(it);
|
||||
Py_XDECREF(it->it_callable);
|
||||
Py_XDECREF(it->it_sentinel);
|
||||
PyObject_GC_Del(it);
|
||||
}
|
||||
|
||||
static int
|
||||
calliter_traverse(calliterobject *it, visitproc visit, void *arg)
|
||||
{
|
||||
Py_VISIT(it->it_callable);
|
||||
Py_VISIT(it->it_sentinel);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
calliter_iternext(calliterobject *it)
|
||||
{
|
||||
if (it->it_callable != NULL) {
|
||||
PyObject *args = PyTuple_New(0);
|
||||
PyObject *result;
|
||||
if (args == NULL)
|
||||
return NULL;
|
||||
result = PyObject_Call(it->it_callable, args, NULL);
|
||||
Py_DECREF(args);
|
||||
if (result != NULL) {
|
||||
int ok;
|
||||
ok = PyObject_RichCompareBool(result,
|
||||
it->it_sentinel,
|
||||
Py_EQ);
|
||||
if (ok == 0)
|
||||
return result; /* Common case, fast path */
|
||||
Py_DECREF(result);
|
||||
if (ok > 0) {
|
||||
Py_CLEAR(it->it_callable);
|
||||
Py_CLEAR(it->it_sentinel);
|
||||
}
|
||||
}
|
||||
else if (PyErr_ExceptionMatches(PyExc_StopIteration)) {
|
||||
PyErr_Clear();
|
||||
Py_CLEAR(it->it_callable);
|
||||
Py_CLEAR(it->it_sentinel);
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
PyTypeObject PyCallIter_Type = {
|
||||
PyVarObject_HEAD_INIT(&PyType_Type, 0)
|
||||
"callable-iterator", /* tp_name */
|
||||
sizeof(calliterobject), /* tp_basicsize */
|
||||
0, /* tp_itemsize */
|
||||
/* methods */
|
||||
(destructor)calliter_dealloc, /* tp_dealloc */
|
||||
0, /* tp_print */
|
||||
0, /* tp_getattr */
|
||||
0, /* tp_setattr */
|
||||
0, /* tp_compare */
|
||||
0, /* tp_repr */
|
||||
0, /* tp_as_number */
|
||||
0, /* tp_as_sequence */
|
||||
0, /* tp_as_mapping */
|
||||
0, /* tp_hash */
|
||||
0, /* tp_call */
|
||||
0, /* tp_str */
|
||||
PyObject_GenericGetAttr, /* tp_getattro */
|
||||
0, /* tp_setattro */
|
||||
0, /* tp_as_buffer */
|
||||
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
|
||||
0, /* tp_doc */
|
||||
(traverseproc)calliter_traverse, /* tp_traverse */
|
||||
0, /* tp_clear */
|
||||
0, /* tp_richcompare */
|
||||
0, /* tp_weaklistoffset */
|
||||
PyObject_SelfIter, /* tp_iter */
|
||||
(iternextfunc)calliter_iternext, /* tp_iternext */
|
||||
0, /* tp_methods */
|
||||
};
|
||||
Reference in New Issue
Block a user