static PyObject *
attr_dir_make_list(PyObject *iter)
{
PyObject *list, *object;
iternextfunc iternext;
if (!iter)
return NULL;
list = PyList_New(0);
if (!list)
goto err_iter;
iternext = Py_TYPE(iter)->tp_iternext;
while ( (object = iternext(iter)) )
if (PyList_Append(list, object))
goto err_list;
if (PyErr_Occurred())
goto err_list;
Py_DECREF(iter);
return list;
err_list:
Py_DECREF(list);
err_iter:
Py_DECREF(iter);
return NULL;
}
static CYTHON_INLINE int __Pyx_unpack_tuple2(PyObject* tuple, PyObject** pvalue1, PyObject** pvalue2,
int is_tuple, int has_known_size, int decref_tuple) {
Py_ssize_t index;
PyObject *value1 = NULL, *value2 = NULL, *iter = NULL;
if (!is_tuple && unlikely(!PyTuple_Check(tuple))) {
iternextfunc iternext;
iter = PyObject_GetIter(tuple);
if (unlikely(!iter)) goto bad;
if (decref_tuple) { Py_DECREF(tuple); tuple = NULL; }
iternext = Py_TYPE(iter)->tp_iternext;
value1 = iternext(iter); if (unlikely(!value1)) { index = 0; goto unpacking_failed; }
value2 = iternext(iter); if (unlikely(!value2)) { index = 1; goto unpacking_failed; }
if (!has_known_size && unlikely(__Pyx_IternextUnpackEndCheck(iternext(iter), 2))) goto bad;
Py_DECREF(iter);
} else {
if (!has_known_size && unlikely(PyTuple_GET_SIZE(tuple) != 2)) {
__Pyx_UnpackTupleError(tuple, 2);
goto bad;
}
#if CYTHON_COMPILING_IN_PYPY
value1 = PySequence_ITEM(tuple, 0);
if (unlikely(!value1)) goto bad;
value2 = PySequence_ITEM(tuple, 1);
if (unlikely(!value2)) goto bad;
#else
value1 = PyTuple_GET_ITEM(tuple, 0);
value2 = PyTuple_GET_ITEM(tuple, 1);
Py_INCREF(value1);
Py_INCREF(value2);
#endif
if (decref_tuple) { Py_DECREF(tuple); }
}
*pvalue1 = value1;
*pvalue2 = value2;
return 0;
unpacking_failed:
if (!has_known_size && __Pyx_IterFinish() == 0)
__Pyx_RaiseNeedMoreValuesError(index);
bad:
Py_XDECREF(iter);
Py_XDECREF(value1);
Py_XDECREF(value2);
if (decref_tuple) { Py_XDECREF(tuple); }
return -1;
}
/**
* Python all
*
* @param t Prolog term with a previously constructed Python iterator
*
* @return the Python boolean `True` if all elements of the iterator are `True`,
* `False` otherwise.
*/
static PyObject *bip_all(term_t t) {
PyObject *it, *item, *v;
PyObject *(*iternext)(PyObject *);
int cmp;
if (!PL_get_arg(1, t, t))
return NULL;
v = term_to_python(t, true);
it = PyObject_GetIter(v);
if (it == NULL)
return NULL;
iternext = *Py_TYPE(it)->tp_iternext;
// PyObject_Print(v, stderr, 0);
for (;;) {
item = iternext(it);
if (item == NULL)
break;
cmp = PyObject_IsTrue(item);
Py_DECREF(item);
if (cmp < 0) {
Py_DECREF(it);
return NULL;
}
if (cmp == 0) {
Py_DECREF(it);
return Py_False;
}
}
Py_DECREF(it);
if (PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_StopIteration))
PyErr_Clear();
else
return NULL;
}
return Py_True;
}
// originally copied from Py3's builtin_next()
static CYTHON_INLINE PyObject *__Pyx_PyIter_Next2(PyObject* iterator, PyObject* defval) {
PyObject* next;
iternextfunc iternext = Py_TYPE(iterator)->tp_iternext;
#if CYTHON_COMPILING_IN_CPYTHON
if (unlikely(!iternext)) {
#else
if (unlikely(!iternext) || unlikely(!PyIter_Check(iterator))) {
#endif
PyErr_Format(PyExc_TypeError,
"%.200s object is not an iterator", Py_TYPE(iterator)->tp_name);
return NULL;
}
next = iternext(iterator);
if (likely(next))
return next;
#if CYTHON_COMPILING_IN_CPYTHON
#if PY_VERSION_HEX >= 0x03010000 || (PY_MAJOR_VERSION < 3 && PY_VERSION_HEX >= 0x02070000)
if (unlikely(iternext == &_PyObject_NextNotImplemented))
return NULL;
#endif
#endif
if (defval) {
PyObject* exc_type = PyErr_Occurred();
if (exc_type) {
if (unlikely(exc_type != PyExc_StopIteration) &&
!PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))
return NULL;
PyErr_Clear();
}
Py_INCREF(defval);
return defval;
}
if (!PyErr_Occurred())
PyErr_SetNone(PyExc_StopIteration);
return NULL;
}
/////////////// IterFinish.proto ///////////////
static CYTHON_INLINE int __Pyx_IterFinish(void); /*proto*/
/////////////// IterFinish ///////////////
// When PyIter_Next(iter) has returned NULL in order to signal termination,
// this function does the right cleanup and returns 0 on success. If it
// detects an error that occurred in the iterator, it returns -1.
static CYTHON_INLINE int __Pyx_IterFinish(void) {
#if CYTHON_COMPILING_IN_CPYTHON
PyThreadState *tstate = PyThreadState_GET();
PyObject* exc_type = tstate->curexc_type;
if (unlikely(exc_type)) {
if (likely(exc_type == PyExc_StopIteration) || PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration)) {
PyObject *exc_value, *exc_tb;
exc_value = tstate->curexc_value;
exc_tb = tstate->curexc_traceback;
tstate->curexc_type = 0;
tstate->curexc_value = 0;
tstate->curexc_traceback = 0;
Py_DECREF(exc_type);
Py_XDECREF(exc_value);
Py_XDECREF(exc_tb);
return 0;
} else {
return -1;
}
}
return 0;
#else
if (unlikely(PyErr_Occurred())) {
if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
PyErr_Clear();
return 0;
} else {
return -1;
}
}
return 0;
#endif
}