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155 lines
3.4 KiB
C
155 lines
3.4 KiB
C
/***********************************************************
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Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
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Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior permission.
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STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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/* Module object implementation */
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#include "allobjects.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_badcall();
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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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char *
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getmodulename(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 getstringvalue(((moduleobject *)m) -> md_name);
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}
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/* Methods */
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static void
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module_dealloc(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 int
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module_print(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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return 0;
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}
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static object *
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module_repr(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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module_getattr(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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if (strcmp(name, "__name__") == 0) {
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INCREF(m->md_name);
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return m->md_name;
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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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module_setattr(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 || strcmp(name, "__name__") == 0) {
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err_setstr(NameError, "can't assign to reserved member name");
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return -1;
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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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module_dealloc, /*tp_dealloc*/
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module_print, /*tp_print*/
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module_getattr, /*tp_getattr*/
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module_setattr, /*tp_setattr*/
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0, /*tp_compare*/
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module_repr, /*tp_repr*/
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};
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