| /*********************************************************** |
| Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum, |
| Amsterdam, The Netherlands. |
| |
| All Rights Reserved |
| |
| Permission to use, copy, modify, and distribute this software and its |
| documentation for any purpose and without fee is hereby granted, |
| provided that the above copyright notice appear in all copies and that |
| both that copyright notice and this permission notice appear in |
| supporting documentation, and that the names of Stichting Mathematisch |
| Centrum or CWI not be used in advertising or publicity pertaining to |
| distribution of the software without specific, written prior permission. |
| |
| STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
| FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| |
| ******************************************************************/ |
| |
| /* Module object implementation */ |
| |
| #include "allobjects.h" |
| |
| typedef struct { |
| OB_HEAD |
| object *md_name; |
| object *md_dict; |
| } moduleobject; |
| |
| object * |
| newmoduleobject(name) |
| char *name; |
| { |
| moduleobject *m = NEWOBJ(moduleobject, &Moduletype); |
| if (m == NULL) |
| return NULL; |
| m->md_name = newstringobject(name); |
| m->md_dict = newdictobject(); |
| if (m->md_name == NULL || m->md_dict == NULL) { |
| DECREF(m); |
| return NULL; |
| } |
| return (object *)m; |
| } |
| |
| object * |
| getmoduledict(m) |
| object *m; |
| { |
| if (!is_moduleobject(m)) { |
| err_badcall(); |
| return NULL; |
| } |
| return ((moduleobject *)m) -> md_dict; |
| } |
| |
| char * |
| getmodulename(m) |
| object *m; |
| { |
| if (!is_moduleobject(m)) { |
| err_badarg(); |
| return NULL; |
| } |
| return getstringvalue(((moduleobject *)m) -> md_name); |
| } |
| |
| /* Methods */ |
| |
| static void |
| module_dealloc(m) |
| moduleobject *m; |
| { |
| if (m->md_name != NULL) |
| DECREF(m->md_name); |
| if (m->md_dict != NULL) |
| DECREF(m->md_dict); |
| free((char *)m); |
| } |
| |
| static object * |
| module_repr(m) |
| moduleobject *m; |
| { |
| char buf[100]; |
| sprintf(buf, "<module '%.80s'>", getstringvalue(m->md_name)); |
| return newstringobject(buf); |
| } |
| |
| static object * |
| module_getattr(m, name) |
| moduleobject *m; |
| char *name; |
| { |
| object *res; |
| if (strcmp(name, "__dict__") == 0) { |
| INCREF(m->md_dict); |
| return m->md_dict; |
| } |
| if (strcmp(name, "__name__") == 0) { |
| INCREF(m->md_name); |
| return m->md_name; |
| } |
| res = dictlookup(m->md_dict, name); |
| if (res == NULL) |
| err_setstr(AttributeError, name); |
| else { |
| if (is_accessobject(res)) |
| res = getaccessvalue(res, (object *)NULL); |
| else |
| INCREF(res); |
| } |
| return res; |
| } |
| |
| static int |
| module_setattr(m, name, v) |
| moduleobject *m; |
| char *name; |
| object *v; |
| { |
| object *ac; |
| if (name[0] == '_' && name[1] == '_') { |
| int n = strlen(name); |
| if (name[n-1] == '_' && name[n-2] == '_') { |
| err_setstr(TypeError, "read-only special attribute"); |
| return -1; |
| } |
| } |
| ac = dictlookup(m->md_dict, name); |
| if (ac != NULL && is_accessobject(ac)) |
| return setaccessvalue(ac, (object *)NULL, v); |
| if (v == NULL) { |
| int rv = dictremove(m->md_dict, name); |
| if (rv < 0) |
| err_setstr(AttributeError, |
| "delete non-existing module attribute"); |
| return rv; |
| } |
| else |
| return dictinsert(m->md_dict, name, v); |
| } |
| |
| typeobject Moduletype = { |
| OB_HEAD_INIT(&Typetype) |
| 0, /*ob_size*/ |
| "module", /*tp_name*/ |
| sizeof(moduleobject), /*tp_size*/ |
| 0, /*tp_itemsize*/ |
| module_dealloc, /*tp_dealloc*/ |
| 0, /*tp_print*/ |
| module_getattr, /*tp_getattr*/ |
| module_setattr, /*tp_setattr*/ |
| 0, /*tp_compare*/ |
| module_repr, /*tp_repr*/ |
| }; |