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bpo-36030: Add _PyTuple_FromArray() function (GH-11954)

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Sergey Fedoseev 2019-02-25 21:59:12 +05:00 • committed by Victor Stinner
parent 55e335d7d5
commit 234531b446
7 changed files with 31 additions and 97 deletions
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33
Objects/tupleobject.c
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@ -419,14 +419,26 @@ tupleitem(PyTupleObject *a, Py_ssize_t i)
return a->ob_item[i];
}
PyObject *
_PyTuple_FromArray(PyObject *const *src, Py_ssize_t n)
{
PyTupleObject *tuple = (PyTupleObject *)PyTuple_New(n);
if (tuple == NULL) {
return NULL;
}
PyObject **dst = tuple->ob_item;
for (Py_ssize_t i = 0; i < n; i++) {
PyObject *item = src[i];
Py_INCREF(item);
dst[i] = item;
}
return (PyObject *)tuple;
}
static PyObject *
tupleslice(PyTupleObject *a, Py_ssize_t ilow,
Py_ssize_t ihigh)
{
PyTupleObject *np;
PyObject **src, **dest;
Py_ssize_t i;
Py_ssize_t len;
if (ilow < 0)
ilow = 0;
if (ihigh > Py_SIZE(a))
@ -437,18 +449,7 @@ tupleslice(PyTupleObject *a, Py_ssize_t ilow,
Py_INCREF(a);
return (PyObject *)a;
}
len = ihigh - ilow;
np = (PyTupleObject *)PyTuple_New(len);
if (np == NULL)
return NULL;
src = a->ob_item + ilow;
dest = np->ob_item;
for (i = 0; i < len; i++) {
PyObject *v = src[i];
Py_INCREF(v);
dest[i] = v;
}
return (PyObject *)np;
return _PyTuple_FromArray(a->ob_item + ilow, ihigh - ilow);
}
PyObject *