ref: c7d9da8f5a41b833946027c802e0e8d7dd014b22
dir: /sys/src/cmd/python/Modules/cgensupport.c/
/* Functions used by cgen output */
#include "Python.h"
#include "cgensupport.h"
/* Functions to extract arguments.
These needs to know the total number of arguments supplied,
since the argument list is a tuple only of there is more than
one argument. */
int
PyArg_GetObject(register PyObject *args, int nargs, int i, PyObject **p_arg)
{
if (nargs != 1) {
if (args == NULL || !PyTuple_Check(args) ||
nargs != PyTuple_Size(args) ||
i < 0 || i >= nargs) {
return PyErr_BadArgument();
}
else {
args = PyTuple_GetItem(args, i);
}
}
if (args == NULL) {
return PyErr_BadArgument();
}
*p_arg = args;
return 1;
}
int
PyArg_GetLong(register PyObject *args, int nargs, int i, long *p_arg)
{
if (nargs != 1) {
if (args == NULL || !PyTuple_Check(args) ||
nargs != PyTuple_Size(args) ||
i < 0 || i >= nargs) {
return PyErr_BadArgument();
}
args = PyTuple_GetItem(args, i);
}
if (args == NULL || !PyInt_Check(args)) {
return PyErr_BadArgument();
}
*p_arg = PyInt_AsLong(args);
return 1;
}
int
PyArg_GetShort(register PyObject *args, int nargs, int i, short *p_arg)
{
long x;
if (!PyArg_GetLong(args, nargs, i, &x))
return 0;
*p_arg = (short) x;
return 1;
}
static int
extractdouble(register PyObject *v, double *p_arg)
{
if (v == NULL) {
/* Fall through to error return at end of function */
}
else if (PyFloat_Check(v)) {
*p_arg = PyFloat_AS_DOUBLE((PyFloatObject *)v);
return 1;
}
else if (PyInt_Check(v)) {
*p_arg = PyInt_AS_LONG((PyIntObject *)v);
return 1;
}
else if (PyLong_Check(v)) {
*p_arg = PyLong_AsDouble(v);
return 1;
}
return PyErr_BadArgument();
}
static int
extractfloat(register PyObject *v, float *p_arg)
{
if (v == NULL) {
/* Fall through to error return at end of function */
}
else if (PyFloat_Check(v)) {
*p_arg = (float) PyFloat_AS_DOUBLE((PyFloatObject *)v);
return 1;
}
else if (PyInt_Check(v)) {
*p_arg = (float) PyInt_AS_LONG((PyIntObject *)v);
return 1;
}
else if (PyLong_Check(v)) {
*p_arg = (float) PyLong_AsDouble(v);
return 1;
}
return PyErr_BadArgument();
}
int
PyArg_GetFloat(register PyObject *args, int nargs, int i, float *p_arg)
{
PyObject *v;
float x;
if (!PyArg_GetObject(args, nargs, i, &v))
return 0;
if (!extractfloat(v, &x))
return 0;
*p_arg = x;
return 1;
}
int
PyArg_GetString(PyObject *args, int nargs, int i, string *p_arg)
{
PyObject *v;
if (!PyArg_GetObject(args, nargs, i, &v))
return 0;
if (!PyString_Check(v)) {
return PyErr_BadArgument();
}
*p_arg = PyString_AsString(v);
return 1;
}
int
PyArg_GetChar(PyObject *args, int nargs, int i, char *p_arg)
{
string x;
if (!PyArg_GetString(args, nargs, i, &x))
return 0;
if (x[0] == '\0' || x[1] != '\0') {
/* Not exactly one char */
return PyErr_BadArgument();
}
*p_arg = x[0];
return 1;
}
int
PyArg_GetLongArraySize(PyObject *args, int nargs, int i, long *p_arg)
{
PyObject *v;
if (!PyArg_GetObject(args, nargs, i, &v))
return 0;
if (PyTuple_Check(v)) {
*p_arg = PyTuple_Size(v);
return 1;
}
if (PyList_Check(v)) {
*p_arg = PyList_Size(v);
return 1;
}
return PyErr_BadArgument();
}
int
PyArg_GetShortArraySize(PyObject *args, int nargs, int i, short *p_arg)
{
long x;
if (!PyArg_GetLongArraySize(args, nargs, i, &x))
return 0;
*p_arg = (short) x;
return 1;
}
/* XXX The following four are too similar. Should share more code. */
int
PyArg_GetLongArray(PyObject *args, int nargs, int i, int n, long *p_arg)
{
PyObject *v, *w;
if (!PyArg_GetObject(args, nargs, i, &v))
return 0;
if (PyTuple_Check(v)) {
if (PyTuple_Size(v) != n) {
return PyErr_BadArgument();
}
for (i = 0; i < n; i++) {
w = PyTuple_GetItem(v, i);
if (!PyInt_Check(w)) {
return PyErr_BadArgument();
}
p_arg[i] = PyInt_AsLong(w);
}
return 1;
}
else if (PyList_Check(v)) {
if (PyList_Size(v) != n) {
return PyErr_BadArgument();
}
for (i = 0; i < n; i++) {
w = PyList_GetItem(v, i);
if (!PyInt_Check(w)) {
return PyErr_BadArgument();
}
p_arg[i] = PyInt_AsLong(w);
}
return 1;
}
else {
return PyErr_BadArgument();
}
}
int
PyArg_GetShortArray(PyObject *args, int nargs, int i, int n, short *p_arg)
{
PyObject *v, *w;
if (!PyArg_GetObject(args, nargs, i, &v))
return 0;
if (PyTuple_Check(v)) {
if (PyTuple_Size(v) != n) {
return PyErr_BadArgument();
}
for (i = 0; i < n; i++) {
w = PyTuple_GetItem(v, i);
if (!PyInt_Check(w)) {
return PyErr_BadArgument();
}
p_arg[i] = (short) PyInt_AsLong(w);
}
return 1;
}
else if (PyList_Check(v)) {
if (PyList_Size(v) != n) {
return PyErr_BadArgument();
}
for (i = 0; i < n; i++) {
w = PyList_GetItem(v, i);
if (!PyInt_Check(w)) {
return PyErr_BadArgument();
}
p_arg[i] = (short) PyInt_AsLong(w);
}
return 1;
}
else {
return PyErr_BadArgument();
}
}
int
PyArg_GetDoubleArray(PyObject *args, int nargs, int i, int n, double *p_arg)
{
PyObject *v, *w;
if (!PyArg_GetObject(args, nargs, i, &v))
return 0;
if (PyTuple_Check(v)) {
if (PyTuple_Size(v) != n) {
return PyErr_BadArgument();
}
for (i = 0; i < n; i++) {
w = PyTuple_GetItem(v, i);
if (!extractdouble(w, &p_arg[i]))
return 0;
}
return 1;
}
else if (PyList_Check(v)) {
if (PyList_Size(v) != n) {
return PyErr_BadArgument();
}
for (i = 0; i < n; i++) {
w = PyList_GetItem(v, i);
if (!extractdouble(w, &p_arg[i]))
return 0;
}
return 1;
}
else {
return PyErr_BadArgument();
}
}
int
PyArg_GetFloatArray(PyObject *args, int nargs, int i, int n, float *p_arg)
{
PyObject *v, *w;
if (!PyArg_GetObject(args, nargs, i, &v))
return 0;
if (PyTuple_Check(v)) {
if (PyTuple_Size(v) != n) {
return PyErr_BadArgument();
}
for (i = 0; i < n; i++) {
w = PyTuple_GetItem(v, i);
if (!extractfloat(w, &p_arg[i]))
return 0;
}
return 1;
}
else if (PyList_Check(v)) {
if (PyList_Size(v) != n) {
return PyErr_BadArgument();
}
for (i = 0; i < n; i++) {
w = PyList_GetItem(v, i);
if (!extractfloat(w, &p_arg[i]))
return 0;
}
return 1;
}
else {
return PyErr_BadArgument();
}
}