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145 lines
2.5 KiB
C
145 lines
2.5 KiB
C
/* Module object implementation */
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#include <stdio.h>
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#include "PROTO.h"
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#include "object.h"
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#include "stringobject.h"
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#include "dictobject.h"
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#include "moduleobject.h"
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#include "objimpl.h"
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#include "errors.h"
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typedef struct {
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OB_HEAD
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object *md_name;
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object *md_dict;
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} moduleobject;
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object *
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newmoduleobject(name)
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char *name;
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{
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moduleobject *m = NEWOBJ(moduleobject, &Moduletype);
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if (m == NULL)
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return NULL;
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m->md_name = newstringobject(name);
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m->md_dict = newdictobject();
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if (m->md_name == NULL || m->md_dict == NULL) {
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DECREF(m);
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return NULL;
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}
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return (object *)m;
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}
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object *
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getmoduledict(m)
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object *m;
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{
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if (!is_moduleobject(m)) {
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err_badarg();
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return NULL;
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}
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return ((moduleobject *)m) -> md_dict;
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}
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int
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setmoduledict(m, v)
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object *m;
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object *v;
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{
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if (!is_moduleobject(m)) {
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err_badarg();
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return -1;
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}
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if (!is_dictobject(v)) {
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err_badarg();
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return -1;
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}
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DECREF(((moduleobject *)m) -> md_dict);
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INCREF(v);
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((moduleobject *)m) -> md_dict = v;
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return 0;
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}
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/* Methods */
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static void
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moduledealloc(m)
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moduleobject *m;
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{
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if (m->md_name != NULL)
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DECREF(m->md_name);
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if (m->md_dict != NULL)
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DECREF(m->md_dict);
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free((char *)m);
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}
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static void
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moduleprint(m, fp, flags)
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moduleobject *m;
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FILE *fp;
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int flags;
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{
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fprintf(fp, "<module %s>", getstringvalue(m->md_name));
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}
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static object *
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modulerepr(m)
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moduleobject *m;
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{
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char buf[100];
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sprintf(buf, "<module %.80s>", getstringvalue(m->md_name));
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return newstringobject(buf);
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}
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static object *
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modulegetattr(m, name)
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moduleobject *m;
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char *name;
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{
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object *res;
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if (strcmp(name, "__dict") == 0) {
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INCREF(m->md_dict);
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return m->md_dict;
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}
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res = dictlookup(m->md_dict, name);
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if (res == NULL)
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err_setstr(NameError, name);
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else
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INCREF(res);
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return res;
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}
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static int
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modulesetattr(m, name, v)
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moduleobject *m;
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char *name;
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object *v;
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{
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if (strcmp(name, "__dict") == 0) {
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/* Can't allow assignment to __dict, it would screw up
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module's functions which still use the old dictionary. */
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err_setstr(NameError, "__dict is a reserved member name");
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return NULL;
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}
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if (v == NULL)
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return dictremove(m->md_dict, name);
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else
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return dictinsert(m->md_dict, name, v);
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}
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typeobject Moduletype = {
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OB_HEAD_INIT(&Typetype)
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0, /*ob_size*/
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"module", /*tp_name*/
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sizeof(moduleobject), /*tp_size*/
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0, /*tp_itemsize*/
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moduledealloc, /*tp_dealloc*/
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moduleprint, /*tp_print*/
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modulegetattr, /*tp_getattr*/
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modulesetattr, /*tp_setattr*/
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0, /*tp_compare*/
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modulerepr, /*tp_repr*/
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};
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