Lots of changes, most minor (fatal() instead of abort(), use of

err_fetch/err_restore and so on).  But...
NOTE: import.c has been rewritten and all the DL stuff is now in the
new file importdl.c.
This commit is contained in:
Guido van Rossum 1995-01-02 19:04:15 +00:00
parent 824de25fe2
commit 1ae940a587
15 changed files with 1871 additions and 1089 deletions

View file

@ -29,7 +29,7 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#ifdef MPW /* MPW pushes 'extended' for float and double types with varargs */
typedef extended va_double;
#else
#else
typedef double va_double;
#endif
@ -42,7 +42,7 @@ object *
initmodule2(name, methods, passthrough)
char *name;
struct methodlist *methods;
object *passthrough;
object *passthrough;
{
object *m, *d, *v;
struct methodlist *ml;
@ -58,7 +58,7 @@ initmodule2(name, methods, passthrough)
fatal("out of mem for method name");
sprintf(namebuf, "%s.%s", name, ml->ml_name);
v = newmethodobject(namebuf, ml->ml_meth,
(object *)passthrough, ml->ml_varargs);
(object *)passthrough, ml->ml_varargs);
/* XXX The malloc'ed memory in namebuf is never freed */
if (v == NULL || dictinsert(d, ml->ml_name, v) != 0) {
fprintf(stderr, "initializing module: %s\n", name);
@ -90,20 +90,33 @@ static int countformat(format, endchar)
int count = 0;
int level = 0;
while (level > 0 || *format != endchar) {
if (*format == '\0') {
switch (*format) {
case '\0':
/* Premature end */
err_setstr(SystemError, "unmatched paren in format");
return -1;
}
else if (*format == '(') {
case '(':
case '[':
case '{':
if (level == 0)
count++;
level++;
}
else if (*format == ')')
break;
case ')':
case ']':
case '}':
level--;
else if (level == 0 && *format != '#')
count++;
break;
case '#':
case ',':
case ':':
case ' ':
case '\t':
break;
default:
if (level == 0)
count++;
}
format++;
}
return count;
@ -114,8 +127,85 @@ static int countformat(format, endchar)
/* After an original idea and first implementation by Steven Miale */
static object *do_mktuple PROTO((char**, va_list *, int, int));
static object *do_mklist PROTO((char**, va_list *, int, int));
static object *do_mkdict PROTO((char**, va_list *, int, int));
static object *do_mkvalue PROTO((char**, va_list *));
static object *
do_mkdict(p_format, p_va, endchar, n)
char **p_format;
va_list *p_va;
int endchar;
int n;
{
object *d;
int i;
if (n < 0)
return NULL;
if ((d = newdictobject()) == NULL)
return NULL;
for (i = 0; i < n; i+= 2) {
object *k, *v;
k = do_mkvalue(p_format, p_va);
if (k == NULL) {
DECREF(d);
return NULL;
}
v = do_mkvalue(p_format, p_va);
if (v == NULL) {
DECREF(k);
DECREF(d);
return NULL;
}
if (dict2insert(d, k, v) < 0) {
DECREF(k);
DECREF(v);
DECREF(d);
return NULL;
}
}
if (d != NULL && **p_format != endchar) {
DECREF(d);
d = NULL;
err_setstr(SystemError, "Unmatched paren in format");
}
else if (endchar)
++*p_format;
return d;
}
static object *
do_mklist(p_format, p_va, endchar, n)
char **p_format;
va_list *p_va;
int endchar;
int n;
{
object *v;
int i;
if (n < 0)
return NULL;
if ((v = newlistobject(n)) == NULL)
return NULL;
for (i = 0; i < n; i++) {
object *w = do_mkvalue(p_format, p_va);
if (w == NULL) {
DECREF(v);
return NULL;
}
setlistitem(v, i, w);
}
if (v != NULL && **p_format != endchar) {
DECREF(v);
v = NULL;
err_setstr(SystemError, "Unmatched paren in format");
}
else if (endchar)
++*p_format;
return v;
}
static object *
do_mktuple(p_format, p_va, endchar, n)
char **p_format;
@ -152,34 +242,41 @@ do_mkvalue(p_format, p_va)
char **p_format;
va_list *p_va;
{
switch (*(*p_format)++) {
case '(':
return do_mktuple(p_format, p_va, ')',
countformat(*p_format, ')'));
case 'b':
case 'h':
case 'i':
return newintobject((long)va_arg(*p_va, int));
case 'l':
return newintobject((long)va_arg(*p_va, long));
case 'f':
case 'd':
return newfloatobject((double)va_arg(*p_va, va_double));
case 'c':
for (;;) {
switch (*(*p_format)++) {
case '(':
return do_mktuple(p_format, p_va, ')',
countformat(*p_format, ')'));
case '[':
return do_mklist(p_format, p_va, ']',
countformat(*p_format, ']'));
case '{':
return do_mkdict(p_format, p_va, '}',
countformat(*p_format, '}'));
case 'b':
case 'h':
case 'i':
return newintobject((long)va_arg(*p_va, int));
case 'l':
return newintobject((long)va_arg(*p_va, long));
case 'f':
case 'd':
return newfloatobject((double)va_arg(*p_va, double));
case 'c':
{
char p[1];
p[0] = va_arg(*p_va, int);
return newsizedstringobject(p, 1);
}
case 's':
case 'z':
case 's':
case 'z':
{
object *v;
char *str = va_arg(*p_va, char *);
@ -201,33 +298,44 @@ do_mkvalue(p_format, p_va)
}
return v;
}
case 'S':
case 'O':
case 'S':
case 'O':
{
object *v;
v = va_arg(*p_va, object *);
if (v != NULL)
INCREF(v);
else if (!err_occurred())
/* If a NULL was passed because a call
that should have constructed a value
failed, that's OK, and we pass the error
on; but if no error occurred it's not
clear that the caller knew what she
was doing. */
/* If a NULL was passed
* because a call that should
* have constructed a value
* failed, that's OK, and we
* pass the error on; but if
* no error occurred it's not
* clear that the caller knew
* what she was doing. */
err_setstr(SystemError,
"NULL object passed to mkvalue");
return v;
}
default:
err_setstr(SystemError, "bad format char passed to mkvalue");
return NULL;
case ':':
case ',':
case ' ':
case '\t':
break;
default:
err_setstr(SystemError,
"bad format char passed to mkvalue");
return NULL;
}
}
}
#ifdef HAVE_STDARG_PROTOTYPES
/* VARARGS 2 */
object *mkvalue(char *format, ...)
@ -257,6 +365,14 @@ vmkvalue(format, va)
{
char *f = format;
int n = countformat(f, '\0');
va_list lva;
#ifdef VA_LIST_IS_ARRAY
memcpy(lva, va, sizeof(va_list));
#else
lva = va;
#endif
if (n < 0)
return NULL;
if (n == 0) {
@ -264,6 +380,83 @@ vmkvalue(format, va)
return None;
}
if (n == 1)
return do_mkvalue(&f, &va);
return do_mktuple(&f, &va, '\0', n);
return do_mkvalue(&f, &lva);
return do_mktuple(&f, &lva, '\0', n);
}
#ifdef HAVE_STDARG_PROTOTYPES
object *
PyEval_CallFunction(object *obj, char *format, ...)
#else
object *
PyEval_CallFunction(obj, format, va_alist)
object *obj;
char *format;
va_dcl
#endif
{
va_list vargs;
object *args;
object *res;
#ifdef HAVE_STDARG_PROTOTYPES
va_start(vargs, format);
#else
va_start(vargs);
#endif
args = vmkvalue(format, vargs);
va_end(vargs);
if (args == NULL)
return NULL;
res = call_object(obj, args);
DECREF(args);
return res;
}
#ifdef HAVE_STDARG_PROTOTYPES
object *
PyEval_CallMethod(object *obj, char *method, char *format, ...)
#else
object *
PyEval_CallMethod(obj, method, format, va_alist)
object *obj;
char *method;
char *format;
va_dcl
#endif
{
va_list vargs;
object *meth;
object *args;
object *res;
meth = getattr(obj, method);
if (meth == NULL)
return NULL;
#ifdef HAVE_STDARG_PROTOTYPES
va_start(vargs, format);
#else
va_start(vargs);
#endif
args = vmkvalue(format, vargs);
va_end(vargs);
if (args == NULL) {
DECREF(meth);
return NULL;
}
res = call_object(meth, args);
DECREF(meth);
DECREF(args);
return res;
}