static foreign_t python_assign_item(term_t parent, term_t indx, term_t tobj) {
PyObject *pF, *pI;
PyObject *p;
// get Scope ...
pI = term_to_python(indx, true);
// got Scope.Exp
// get Scope ...
p = term_to_python(parent, true);
// Exp
// get Scope ...
pF = term_to_python(parent, true);
// Exp
if (!pI || !p) {
{
return false;
}
} else if (PyObject_SetItem(p, pI, pF)) {
PyErr_Print();
{
return false;
}
}
Py_DecRef(pI);
Py_DecRef(p);
{
return true;
}
}
static foreign_t python_index(term_t tobj, term_t tindex, term_t val) {
PyObject *i;
PyObject *o;
PyObject *f;
o = term_to_python(tobj, true);
if (o == NULL) {
return false;
}
if (!PySequence_Check(o)) {
return false;
}
i = term_to_python(tindex, true);
if (i == NULL) {
return false;
}
#if PY_MAJOR_VERSION < 3
f = PyObject_CallMethodObjArgs(o, PyString_FromString("getitem"), i);
#else
f = PyObject_CallMethodObjArgs(o, PyUnicode_FromString("getitem"), i);
#endif
{
foreign_t rc = python_to_ptr(f, val);
;
return rc;
}
}
static foreign_t python_slice(term_t parent, term_t indx, term_t tobj) {
PyObject *pF, *pI;
PyObject *p;
// get Scope ...
pI = term_to_python(indx, true);
// got Scope.Exp
// get Scope ...
p = term_to_python(parent, true);
// Exp
if (!pI || !p) {
{
return false;
}
} else if ((pF = PySequence_GetSlice(p, 0, 0)) == NULL) {
PyErr_Print();
{
return false;
}
}
Py_DecRef(pI);
Py_DecRef(p);
{
foreign_t rc;
rc = address_to_term(pF, tobj);
return rc;
}
}
static foreign_t python_assign_field(term_t source, term_t name, term_t exp) {
PyObject *e = term_to_python(exp, true), *root = term_to_python(source, true);
if (e == NULL) {
return false;
}
return assign_python(root, name, e) >= 0;
}
static PyObject *bip_bin(term_t t) {
PyObject *v;
if (!PL_get_arg(1, t, t))
return NULL;
v = term_to_python(t, true);
return PyNumber_ToBase(v, 2);
}
static PyObject *bip_int(term_t t) {
PyObject *pVal, *o;
if (!PL_get_arg(1, t, t))
return NULL;
pVal = term_to_python(t, true);
#if PY_MAJOR_VERSION < 3
if (PyLong_Check(pVal)) {
o = PyInt_FromLong(PyLong_AsLong(pVal));
} else if (PyInt_Check(pVal)) {
return pVal;
#else
if (PyLong_Check(pVal)) {
return pVal;
#endif
} else if (PyFloat_Check(pVal)) {
#if PY_MAJOR_VERSION < 3
o = PyInt_FromLong(PyFloat_AsDouble(pVal));
#else
o = PyLong_FromDouble(PyFloat_AsDouble(pVal));
#endif
} else
return NULL;
Py_DECREF(pVal);
return o;
}
static PyObject *bip_long(term_t t) {
PyObject *pVal, *o;
if (!PL_get_arg(1, t, t))
return NULL;
pVal = term_to_python(t, true);
if (PyLong_Check(pVal)) {
return pVal;
#if PY_MAJOR_VERSION < 3
} else if (PyInt_Check(pVal)) {
o = PyLong_FromLong(PyInt_AsLong(pVal));
#endif
} else if (PyFloat_Check(pVal)) {
o = pVal;
} else
return NULL;
Py_DECREF(pVal);
return o;
}
static PyObject *bip_iter(term_t t) {
PyObject *v;
if (!PL_get_arg(1, t, t))
return NULL;
v = term_to_python(t, true);
return PyObject_GetIter(v);
}
static foreign_t python_assign(term_t name, term_t exp) {
PyObject *e = term_to_python(exp, true);
if (e == NULL) {
return false;
}
return assign_python(py_Main, name, e) >= 0;
}
static PyObject *bip_abs(term_t t) {
PyObject *pVal, *nVal;
if (!PL_get_arg(1, t, t))
return NULL;
pVal = term_to_python(t, true);
nVal = PyNumber_Absolute(pVal);
Py_DecRef(pVal);
return nVal;
}
static foreign_t python_is(term_t tobj, term_t tf) {
PyObject *o;
o = term_to_python(tobj, true);
if (!o) {
return false;
}
foreign_t rc = python_to_ptr(o, tf);
return rc;
}
static foreign_t python_len(term_t tobj, term_t tf) {
Py_ssize_t len;
PyObject *o;
o = term_to_python(tobj, true);
if (o == NULL) {
return false;
}
len = PyObject_Length(o);
return PL_unify_int64(tf, len);
}
/** assign a tuple to something:
*/
static foreign_t python_assign_tuple(term_t t_lhs, term_t t_rhs) {
PyObject *e;
Py_ssize_t sz;
functor_t f;
e = term_to_python(t_rhs, true);
if (!e || !PyTuple_Check(e)) {
return -1;
}
sz = PyTuple_Size(e);
switch (PL_term_type(t_lhs)) {
case PL_VARIABLE:
return PL_unify(t_lhs, t_rhs);
case PL_ATOM:
return assign_python(py_Main, t_rhs, e);
case PL_TERM:
if (PL_get_functor(t_lhs, &f)) {
term_t targ = PL_new_term_ref();
// assign a tuple to a tuple
if (PL_functor_name(f) == ATOM_t && ((sz = PL_functor_arity(f)))) {
Py_ssize_t i;
for (i = 0; i < sz; i++) {
PL_get_arg(i + 1, t_lhs, targ);
assign_python(py_Main, targ, PyTuple_GetItem(e, i));
}
} else if (PL_functor_name(f) == ATOM_comma) {
int n = conj_size(t_lhs);
if (n != sz)
return -1;
return conj_copy(t_lhs, e, 0);
} else if (PL_functor_name(f) == ATOM_dot) { // vectors
size_t len;
term_t tail = PL_new_term_ref();
PL_skip_list(t_lhs, tail, &len);
if (!PL_get_nil(tail))
return -1;
term_t arg = tail;
size_t i;
for (i = 0; i < len; i++) {
if (!PL_get_list(t_rhs, arg, t_rhs)) {
return -1;
}
if (assign_python(py_Main, arg, PyTuple_GetItem(e, i)) < 0)
return -1;
}
}
}
}
return -1;
}
PyObject *term_to_nametuple(const char *s, int arity, term_t t) {
PyObject *o;
#if PY_MAJOR_VERSION >= 3
PyTypeObject *typp;
PyObject *key = PyUnicode_FromString(s);
if (py_F2P && PyDict_Contains(py_F2P, key)) {
typp = (PyTypeObject *)PyDict_GetItem(py_F2P, key);
} else {
typp = PyMem_Malloc(sizeof(PyTypeObject));
PyStructSequence_Desc *desc = PyMem_Malloc(sizeof(PyStructSequence_Desc));
desc->name = PyUnicode_AsUTF8(key);
desc->doc = "YAPTerm";
desc->fields = pnull;
desc->n_in_sequence = 32;
if (PyStructSequence_InitType2(typp, desc) < 0)
return NULL;
typp->tp_str = structseq_str;
typp->tp_repr = structseq_repr;
// typp = PyStructSequence_NewType(desc);
Py_INCREF(typp);
// typp->tp_flags |= Py_TPFLAGS_HEAPTYPE;
PyModule_AddObject(py_Yapex, s, (PyObject *)typp);
if (py_F2P)
PyDict_SetItem(py_F2P, key, (PyObject *)typp);
}
o = PyTuple_New(typp);
#else
o = PyTuple_New(arity);
#endif
term_t tleft = PL_new_term_ref();
int i;
for (i = 0; i < arity; i++) {
PyObject *pArg;
if (!PL_get_arg(i + 1, t, tleft))
return NULL;
pArg = term_to_python(tleft, false);
if (pArg == NULL)
return NULL;
#if PY_MAJOR_VERSION >= 3
/* pArg reference stolen here: */
PyStructSequence_SET_ITEM(o, i, pArg);
}
((PyStructSequence *)o)->ob_base.ob_size = arity;
return o;
#else
/* pArg reference stolen here: */
PyTuple_SET_ITEM(o, i, pArg);
}
static foreign_t python_field(term_t parent, term_t att, term_t tobj) {
PyObject *pF;
atom_t name;
char *s;
int arity;
if (!PL_get_name_arity(att, &name, &arity)) {
{
return false;
}
} else {
PyObject *p;
// got Scope.Exp
// get Scope ...
p = term_to_python(parent, true);
// Exp
if (!PL_get_name_arity(att, &name, &arity)) {
{
return false;
}
}
s = PL_atom_chars(name);
if (arity == 1 && !strcmp(s, "()")) {
if (!PL_get_arg(1, att, att)) {
return false;
}
if (!PL_get_name_arity(att, &name, &arity)) {
{
return false;
}
}
s = PL_atom_chars(name);
}
if (!s || !p) {
{
return false;
}
} else if ((pF = PyObject_GetAttrString(p, s)) == NULL) {
PyErr_Clear();
{
return false;
}
}
}
{
foreign_t rc;
rc = address_to_term(pF, tobj);
return rc;
}
}
static foreign_t python_dir(term_t tobj, term_t tf) {
PyObject *dir;
PyObject *o;
o = term_to_python(tobj, true);
if (o == NULL) {
return false;
}
dir = PyObject_Dir(o);
{
foreign_t rc = python_to_ptr(dir, tf);
;
return rc;
}
}
static foreign_t python_f(term_t tmod, term_t fname, term_t tf) {
char *s;
size_t len;
PyObject *pF, *pModule;
/* if an atom, fetch again */
if (PL_is_atom(tmod)) {
PyObject *pName;
if (!PL_get_nchars(fname, &len, &s, CVT_ALL | CVT_EXCEPTION)) {
return FALSE;
}
#if PY_MAJOR_VERSION < 3
pName = PyString_FromString(s);
#else
pName = PyUnicode_FromString(s);
#endif
if (pName == NULL) {
{
return false;
}
}
pModule = PyImport_Import(pName);
PyErr_Clear();
} else if (!(pModule = term_to_python(tmod, true))) {
PyErr_Clear();
{
return false;
}
}
if (!PL_get_nchars(fname, &len, &s, CVT_ALL | CVT_EXCEPTION)) {
{
return false;
}
}
pF = PyObject_GetAttrString(pModule, s);
PyErr_Print();
Py_DECREF(pModule);
if (pF == NULL || !PyCallable_Check(pF)) {
{
return false;
}
}
{
foreign_t rc = python_to_ptr(pF, tf);
return rc;
}
}
static PyObject *bip_float(term_t t, bool eval) {
PyObject *pVal, *o;
if (!PL_get_arg(1, t, t))
return NULL;
pVal = term_to_python(t, eval);
if (PyLong_Check(pVal)) {
o = PyFloat_FromDouble(PyLong_AsLong(pVal));
#if PY_MAJOR_VERSION < 3
} else if (PyInt_Check(pVal)) {
o = PyFloat_FromDouble(PyInt_AsLong(pVal));
#endif
} else if (PyFloat_Check(pVal)) {
return pVal;
} else
return NULL;
Py_DECREF(pVal);
return o;
}
static PyObject *bip_ord(term_t t) {
PyObject *pVal;
Py_ssize_t size;
if (!PL_get_arg(1, t, t))
return NULL;
pVal = term_to_python(t, true);
if (PyUnicode_Check(pVal)) {
#if PY_MAJOR_VERSION < 3
size = PyUnicode_GET_SIZE(pVal);
#else
size = PyUnicode_GetLength(pVal);
#endif
if (size == 1) {
#if PY_MAJOR_VERSION < 3
long ord = (long)*PyUnicode_AS_UNICODE(pVal);
return PyInt_FromLong(ord);
#else
Py_UCS4 ord = PyUnicode_ReadChar(pVal, 0);
return PyLong_FromLong(ord);
#endif
}
return NULL;
} else if (PyByteArray_Check(pVal)) {
char *s = PyByteArray_AsString(pVal);
if (s[1])
return NULL;
#if PY_MAJOR_VERSION < 3
return PyInt_FromLong(s[0]);
} else if (PyString_Check(pVal)) {
char *s = PyString_AsString(pVal);
if (s[1])
return NULL;
return PyInt_FromLong(s[0]);
#else
return PyLong_FromLong(s[0]);
#endif
} else
return NULL;
}
/**
* 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;
}
static foreign_t python_o(term_t tmod, term_t fname, term_t tf) {
char *s;
size_t len;
PyObject *pO, *pModule;
pModule = term_to_python(tmod, true);
if (!PL_get_nchars(fname, &len, &s, CVT_ALL | CVT_EXCEPTION)) {
{
return false;
}
}
pO = PyObject_GetAttrString(pModule, s);
if (pO == NULL) {
{
return false;
}
}
{
foreign_t rc = python_to_ptr(pO, tf);
;
return rc;
}
}
static foreign_t python_apply(term_t tin, term_t targs, term_t keywds,
term_t tf) {
PyObject *pF;
PyObject *pArgs, *pKeywords;
PyObject *pValue;
int i, arity;
atom_t aname;
foreign_t out;
term_t targ = PL_new_term_ref();
pF = term_to_python(tin, true);
PyErr_Clear();
if (pF == NULL) {
{
return false;
}
}
if (PL_is_atom(targs)) {
pArgs = NULL;
} else {
if (!PL_get_name_arity(targs, &aname, &arity)) {
{
return false;
}
}
if (arity == 1 && PL_get_arg(1, targs, targ) && PL_is_variable(targ)) {
/* ignore (_) */
pArgs = NULL;
} else {
pArgs = PyTuple_New(arity);
if (!pArgs) {
return false;
}
for (i = 0; i < arity; i++) {
PyObject *pArg;
if (!PL_get_arg(i + 1, targs, targ)) {
return false;
}
pArg = term_to_python(targ, true);
if (pArg == NULL) {
return false;
}
/* pArg reference stolen here: */
PyTuple_SetItem(pArgs, i, pArg);
}
}
}
if (PL_is_atom(keywds)) {
pKeywords = NULL;
} else {
pKeywords = term_to_python(keywds, true);
}
if (PyCallable_Check(pF)) {
pValue = PyEval_CallObjectWithKeywords(pF, pArgs, pKeywords);
// PyObject_Print(pF,stderr,0);fprintf(stderr, "\n");
// PyObject_Print(pArgs,stderr,0);fprintf(stderr, " ");
// PyObject_Print(pKeywords,stderr,0);fprintf(stderr, "\n");
if (!pValue)
PyErr_Print();
else
Py_IncRef(pValue);
} else if (pArgs == NULL) {
pValue = pF;
if (pF) {
Py_IncRef(pValue);
}
} else {
PyErr_Print();
{
return false;
}
}
if (pArgs)
Py_DECREF(pArgs);
Py_DECREF(pF);
if (pValue == NULL) {
return false;
}
out = python_to_ptr(pValue, tf);
return out;
}
static PyObject *bip_sum(term_t t) {
PyObject *seq;
PyObject *result = NULL;
PyObject *temp, *item, *iter;
if (!PL_get_arg(1, t, t))
return NULL;
seq = term_to_python(t, true);
iter = PyObject_GetIter(seq);
if (iter == NULL)
return NULL;
if (result == NULL) {
#if PY_MAJOR_VERSION < 3
result = PyInt_FromLong(0);
#else
result = PyLong_FromLong(0);
#endif
if (result == NULL) {
Py_DECREF(iter);
return NULL;
}
} else {
#if PY_MAJOR_VERSION < 3
/* reject string values for 'start' parameter */
if (PyObject_TypeCheck(result, &PyBaseString_Type)) {
PyErr_SetString(PyExc_TypeError,
"sum() can't sum strings [use ''.join(seq) instead]");
Py_DECREF(iter);
return NULL;
}
Py_INCREF(result);
#endif
}
#ifndef SLOW_SUM
/* Fast addition by keeping temporary sums in C instead of new Python objects.
Assumes all inputs are the same type. If the assumption fails, default
to the more general routine.
*/
#if PY_MAJOR_VERSION < 3
if (PyInt_CheckExact(result)) {
long i_result = PyInt_AS_LONG(result);
#else
if (PyLong_CheckExact(result)) {
long i_result = PyLong_AS_LONG(result);
#endif
Py_DECREF(result);
result = NULL;
while (result == NULL) {
item = PyIter_Next(iter);
if (item == NULL) {
Py_DECREF(iter);
if (PyErr_Occurred())
return NULL;
#if PY_MAJOR_VERSION < 3
return PyInt_FromLong(i_result);
#else
return PyLong_FromLong(i_result);
#endif
}
#if PY_MAJOR_VERSION < 3
if (PyInt_CheckExact(item)) {
long b = PyInt_AS_LONG(item);
#else
if (PyLong_CheckExact(item)) {
long b = PyLong_AS_LONG(item);
#endif
long x = i_result + b;
if ((x ^ i_result) >= 0 || (x ^ b) >= 0) {
i_result = x;
Py_DECREF(item);
continue;
}
}
/* Either overflowed or is not an int. Restore real objects and process normally
*/
#if PY_MAJOR_VERSION < 3
result = PyInt_FromLong(i_result);
#else
result = PyLong_FromLong(i_result);
#endif
temp = PyNumber_Add(result, item);
Py_DECREF(result);
Py_DECREF(item);
result = temp;
if (result == NULL) {
Py_DECREF(iter);
return NULL;
}
}
}
if (PyFloat_CheckExact(result)) {
double f_result = PyFloat_AS_DOUBLE(result);
Py_DECREF(result);
result = NULL;
while (result == NULL) {
item = PyIter_Next(iter);
if (item == NULL) {
Py_DECREF(iter);
if (PyErr_Occurred())
return NULL;
return PyFloat_FromDouble(f_result);
}
if (PyFloat_CheckExact(item)) {
PyFPE_START_PROTECT("add", Py_DECREF(item); Py_DECREF(iter); return 0)
f_result += PyFloat_AS_DOUBLE(item);
PyFPE_END_PROTECT(f_result) Py_DECREF(item);
continue;
}
#if PY_MAJOR_VERSION < 3
if (PyInt_CheckExact(item)) {
PyFPE_START_PROTECT("add", Py_DECREF(item); Py_DECREF(iter); return 0)
f_result += (double)PyInt_AS_LONG(item);
PyFPE_END_PROTECT(f_result) Py_DECREF(item);
continue;
}
#else
if (PyLong_CheckExact(item)) {
PyFPE_START_PROTECT("add", Py_DECREF(item); Py_DECREF(iter); return 0)
f_result += PyLong_AsDouble(item);
PyFPE_END_PROTECT(f_result) Py_DECREF(item);
continue;
}
#endif
result = PyFloat_FromDouble(f_result);
temp = PyNumber_Add(result, item);
Py_DECREF(result);
Py_DECREF(item);
result = temp;
if (result == NULL) {
Py_DECREF(iter);
return NULL;
}
}
#endif
}
for (;;) {
item = PyIter_Next(iter);
if (item == NULL) {
/* error, or end-of-sequence */
if (PyErr_Occurred()) {
Py_DECREF(result);
result = NULL;
}
break;
}
/* It's tempting to use PyNumber_InPlaceAdd instead of
PyNumber_Add here, to avoid quadratic running time
when doing 'sum(list_of_lists, [])'. However, this
would produce a change in behaviour: a snippet like
empty = []
sum([[x] for x in range(10)], empty)
would change the value of empty. */
temp = PyNumber_Add(result, item);
Py_DECREF(result);
Py_DECREF(item);
result = temp;
if (result == NULL)
break;
}
Py_DECREF(iter);
return result;
}
//@}
static long get_int(term_t arg, bool eval) {
long low;
if (!PL_get_long(arg, &low)) {
PyObject *low = term_to_python(arg, eval);
if (PyLong_Check(low)) {
return PyLong_AsLong(low);
#if PY_MAJOR_VERSION < 3
} else if (PyInt_Check(low)) {
return PyInt_AsLong(low);
#endif
} else {
return 0;
}
}
return low;
}
/* Return number of items in range/xrange (lo, hi, step). step > 0
* required. Return a value < 0 if & only if the true value is too
* large to fit in a signed long.
*/
static long get_len_of_range(long lo, long hi, long step) {
/* -------------------------------------------------------------
If lo >= hi, the range is empty.
Else if n values are in the range, the last one is
lo + (n-1)*step, which must be <= hi-1. Rearranging,
n <= (hi - lo - 1)/step + 1, so taking the floor of the RHS gives
the proper value. Since lo < hi in this case, hi-lo-1 >= 0, so
the RHS is non-negative and so truncation is the same as the
floor. Letting M be the largest positive long, the worst case
for the RHS numerator is hi=M, lo=-M-1, and then
hi-lo-1 = M-(-M-1)-1 = 2*M. Therefore unsigned long has enough
precision to compute the RHS exactly.
---------------------------------------------------------------*/
long n = 0;
if (lo < hi) {
unsigned long uhi = (unsigned long)hi;
unsigned long ulo = (unsigned long)lo;
unsigned long diff = uhi - ulo - 1;
n = (long)(diff / (unsigned long)step + 1);
}
return n;
}
static foreign_t python_builtin_eval(term_t caller, term_t dict, term_t out) {
PyObject *pI, *pArgs, *pOut;
PyObject *env;
atom_t name;
char *s;
int i, arity;
term_t targ = PL_new_term_ref();
if ((env = py_Builtin) == NULL) {
// no point in even trying
{
return false;
}
}
if (PL_get_name_arity(caller, &name, &arity)) {
if (!(s = PL_atom_chars(name))) {
return false;
}
if ((pI = PyObject_GetAttrString(env, s)) == NULL) {
PyErr_Print();
{
return false;
}
}
} else {
// Prolog should make sure this never happens.
{
return false;
}
}
pArgs = PyTuple_New(arity);
for (i = 0; i < arity; i++) {
PyObject *pArg;
if (!PL_get_arg(i + 1, caller, targ)) {
return false;
}
/* ignore (_) */
if (i == 0 && PL_is_variable(targ)) {
pArg = Py_None;
} else {
pArg = term_to_python(targ, true);
if (pArg == NULL) {
return false;
}
}
/* pArg reference stolen here: */
if (PyTuple_SetItem(pArgs, i, pArg)) {
PyErr_Print();
{
return false;
}
}
}
pOut = PyObject_CallObject(pI, pArgs);
Py_DECREF(pArgs);
Py_DECREF(pI);
if (pOut == NULL) {
PyErr_Print();
{
return false;
}
}
{
foreign_t rc = python_to_ptr(pOut, out);
;
return rc;
}
}
static foreign_t python_access(term_t obj, term_t f, term_t out) {
PyObject *o = term_to_python(obj, true), *pValue, *pArgs, *pF;
atom_t name;
char *s;
int i, arity;
term_t targ = PL_new_term_ref();
if (o == NULL) {
return false;
}
if (PL_is_atom(f)) {
if (!PL_get_atom_chars(f, &s)) {
return false;
}
if ((pValue = PyObject_GetAttrString(o, s)) == NULL) {
PyErr_Print();
{
return false;
}
}
{
return python_to_term(pValue, out);
}
}
if (!PL_get_name_arity(f, &name, &arity)) {
{
return false;
}
}
/* follow chains of the form a.b.c.d.e() */
while (name == ATOM_dot && arity == 2) {
term_t tleft = PL_new_term_ref();
PyObject *lhs;
if (!PL_get_arg(1, f, tleft)) {
return false;
}
lhs = term_to_python(tleft, true);
if ((o = PyObject_GetAttr(o, lhs)) == NULL) {
PyErr_Print();
{
return false;
}
}
if (!PL_get_arg(2, f, f)) {
return false;
}
if (!PL_get_name_arity(f, &name, &arity)) {
{
return false;
}
}
}
s = PL_atom_chars(name);
if (!s) {
return false;
}
if ((pF = PyObject_GetAttrString(o, s)) == NULL) {
PyErr_Print();
{
return false;
}
}
pArgs = PyTuple_New(arity);
for (i = 0; i < arity; i++) {
PyObject *pArg;
if (!PL_get_arg(i + 1, f, targ)) {
return false;
}
/* ignore (_) */
if (i == 0 && PL_is_variable(targ)) {
pArgs = Py_None;
}
pArg = term_to_python(targ, true);
if (pArg == NULL) {
return false;
}
/* pArg reference stolen here: */
PyTuple_SetItem(pArgs, i, pArg);
}
pValue = PyObject_CallObject(pF, pArgs);
Py_DECREF(pArgs);
Py_DECREF(pF);
if (pValue == NULL) {
{
return false;
}
}
{
return python_to_term(pValue, out);
}
}
static foreign_t python_function(term_t tobj) {
PyObject *obj = term_to_python(tobj, true);
foreign_t rc = PyFunction_Check(obj);
return rc;
}