cpython/Modules/cgensupport.c

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1990-10-14 09:07:46 -03:00
/* Functions used by cgen output */
#include <stdio.h>
#include "PROTO.h"
#include "object.h"
#include "intobject.h"
#include "floatobject.h"
#include "stringobject.h"
#include "tupleobject.h"
#include "listobject.h"
#include "methodobject.h"
#include "moduleobject.h"
#include "modsupport.h"
#include "import.h"
#include "cgensupport.h"
#include "errors.h"
/* Functions to construct return values */
object *
mknewcharobject(c)
int c;
{
char ch[1];
ch[0] = c;
return newsizedstringobject(ch, 1);
}
/* 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
getiobjectarg(args, nargs, i, p_arg)
register object *args;
int nargs, i;
object **p_arg;
{
if (nargs != 1) {
if (args == NULL || !is_tupleobject(args) ||
nargs != gettuplesize(args) ||
i < 0 || i >= nargs) {
return err_badarg();
}
else {
args = gettupleitem(args, i);
}
}
if (args == NULL) {
return err_badarg();
}
*p_arg = args;
return 1;
}
int
getilongarg(args, nargs, i, p_arg)
register object *args;
int nargs, i;
long *p_arg;
{
if (nargs != 1) {
if (args == NULL || !is_tupleobject(args) ||
nargs != gettuplesize(args) ||
i < 0 || i >= nargs) {
return err_badarg();
}
args = gettupleitem(args, i);
}
if (args == NULL || !is_intobject(args)) {
return err_badarg();
}
*p_arg = getintvalue(args);
return 1;
}
int
getishortarg(args, nargs, i, p_arg)
register object *args;
int nargs, i;
short *p_arg;
{
long x;
if (!getilongarg(args, nargs, i, &x))
return 0;
*p_arg = x;
return 1;
}
static int
extractdouble(v, p_arg)
register object *v;
double *p_arg;
{
if (v == NULL) {
/* Fall through to error return at end of function */
}
else if (is_floatobject(v)) {
*p_arg = GETFLOATVALUE((floatobject *)v);
return 1;
}
else if (is_intobject(v)) {
*p_arg = GETINTVALUE((intobject *)v);
return 1;
}
return err_badarg();
}
static int
extractfloat(v, p_arg)
register object *v;
float *p_arg;
{
if (v == NULL) {
/* Fall through to error return at end of function */
}
else if (is_floatobject(v)) {
*p_arg = GETFLOATVALUE((floatobject *)v);
return 1;
}
else if (is_intobject(v)) {
*p_arg = GETINTVALUE((intobject *)v);
return 1;
}
return err_badarg();
}
int
getifloatarg(args, nargs, i, p_arg)
register object *args;
int nargs, i;
float *p_arg;
{
object *v;
float x;
if (!getiobjectarg(args, nargs, i, &v))
return 0;
if (!extractfloat(v, &x))
return 0;
*p_arg = x;
return 1;
}
int
getistringarg(args, nargs, i, p_arg)
object *args;
int nargs, i;
string *p_arg;
{
object *v;
if (!getiobjectarg(args, nargs, i, &v))
return NULL;
if (!is_stringobject(v)) {
return err_badarg();
}
*p_arg = getstringvalue(v);
return 1;
}
int
getichararg(args, nargs, i, p_arg)
object *args;
int nargs, i;
char *p_arg;
{
string x;
if (!getistringarg(args, nargs, i, &x))
return 0;
if (x[0] == '\0' || x[1] != '\0') {
/* Not exactly one char */
return err_badarg();
}
*p_arg = x[0];
return 1;
}
int
getilongarraysize(args, nargs, i, p_arg)
object *args;
int nargs, i;
long *p_arg;
{
object *v;
if (!getiobjectarg(args, nargs, i, &v))
return 0;
if (is_tupleobject(v)) {
*p_arg = gettuplesize(v);
return 1;
}
if (is_listobject(v)) {
*p_arg = getlistsize(v);
return 1;
}
return err_badarg();
}
int
getishortarraysize(args, nargs, i, p_arg)
object *args;
int nargs, i;
short *p_arg;
{
long x;
if (!getilongarraysize(args, nargs, i, &x))
return 0;
*p_arg = x;
return 1;
}
/* XXX The following four are too similar. Should share more code. */
int
getilongarray(args, nargs, i, n, p_arg)
object *args;
int nargs, i;
int n;
long *p_arg; /* [n] */
{
object *v, *w;
if (!getiobjectarg(args, nargs, i, &v))
return 0;
if (is_tupleobject(v)) {
if (gettuplesize(v) != n) {
return err_badarg();
}
for (i = 0; i < n; i++) {
w = gettupleitem(v, i);
if (!is_intobject(w)) {
return err_badarg();
}
p_arg[i] = getintvalue(w);
}
return 1;
}
else if (is_listobject(v)) {
if (getlistsize(v) != n) {
return err_badarg();
}
for (i = 0; i < n; i++) {
w = getlistitem(v, i);
if (!is_intobject(w)) {
return err_badarg();
}
p_arg[i] = getintvalue(w);
}
return 1;
}
else {
return err_badarg();
}
}
int
getishortarray(args, nargs, i, n, p_arg)
object *args;
int nargs, i;
int n;
short *p_arg; /* [n] */
{
object *v, *w;
if (!getiobjectarg(args, nargs, i, &v))
return 0;
if (is_tupleobject(v)) {
if (gettuplesize(v) != n) {
return err_badarg();
}
for (i = 0; i < n; i++) {
w = gettupleitem(v, i);
if (!is_intobject(w)) {
return err_badarg();
}
p_arg[i] = getintvalue(w);
}
return 1;
}
else if (is_listobject(v)) {
if (getlistsize(v) != n) {
return err_badarg();
}
for (i = 0; i < n; i++) {
w = getlistitem(v, i);
if (!is_intobject(w)) {
return err_badarg();
}
p_arg[i] = getintvalue(w);
}
return 1;
}
else {
return err_badarg();
}
}
int
getidoublearray(args, nargs, i, n, p_arg)
object *args;
int nargs, i;
int n;
double *p_arg; /* [n] */
{
object *v, *w;
if (!getiobjectarg(args, nargs, i, &v))
return 0;
if (is_tupleobject(v)) {
if (gettuplesize(v) != n) {
return err_badarg();
}
for (i = 0; i < n; i++) {
w = gettupleitem(v, i);
if (!extractdouble(w, &p_arg[i]))
return 0;
}
return 1;
}
else if (is_listobject(v)) {
if (getlistsize(v) != n) {
return err_badarg();
}
for (i = 0; i < n; i++) {
w = getlistitem(v, i);
if (!extractdouble(w, &p_arg[i]))
return 0;
}
return 1;
}
else {
return err_badarg();
}
}
int
getifloatarray(args, nargs, i, n, p_arg)
object *args;
int nargs, i;
int n;
float *p_arg; /* [n] */
{
object *v, *w;
if (!getiobjectarg(args, nargs, i, &v))
return 0;
if (is_tupleobject(v)) {
if (gettuplesize(v) != n) {
return err_badarg();
}
for (i = 0; i < n; i++) {
w = gettupleitem(v, i);
if (!extractfloat(w, &p_arg[i]))
return 0;
}
return 1;
}
else if (is_listobject(v)) {
if (getlistsize(v) != n) {
return err_badarg();
}
for (i = 0; i < n; i++) {
w = getlistitem(v, i);
if (!extractfloat(w, &p_arg[i]))
return 0;
}
return 1;
}
else {
return err_badarg();
}
}