| Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame^] | 1 | /* Module object implementation */ |
| 2 | |
| 3 | #include <stdio.h> |
| 4 | |
| 5 | #include "PROTO.h" |
| 6 | #include "object.h" |
| 7 | #include "stringobject.h" |
| 8 | #include "dictobject.h" |
| 9 | #include "moduleobject.h" |
| 10 | #include "objimpl.h" |
| 11 | |
| 12 | typedef struct { |
| 13 | OB_HEAD |
| 14 | object *md_name; |
| 15 | object *md_dict; |
| 16 | } moduleobject; |
| 17 | |
| 18 | object * |
| 19 | newmoduleobject(name) |
| 20 | char *name; |
| 21 | { |
| 22 | moduleobject *m = NEWOBJ(moduleobject, &Moduletype); |
| 23 | if (m == NULL) |
| 24 | return NULL; |
| 25 | m->md_name = newstringobject(name); |
| 26 | m->md_dict = newdictobject(); |
| 27 | if (m->md_name == NULL || m->md_dict == NULL) { |
| 28 | DECREF(m); |
| 29 | return NULL; |
| 30 | } |
| 31 | return (object *)m; |
| 32 | } |
| 33 | |
| 34 | object * |
| 35 | getmoduledict(m) |
| 36 | object *m; |
| 37 | { |
| 38 | if (!is_moduleobject(m)) { |
| 39 | errno = EBADF; |
| 40 | return NULL; |
| 41 | } |
| 42 | return ((moduleobject *)m) -> md_dict; |
| 43 | } |
| 44 | |
| 45 | int |
| 46 | setmoduledict(m, v) |
| 47 | object *m; |
| 48 | object *v; |
| 49 | { |
| 50 | if (!is_moduleobject(m)) |
| 51 | return errno = EBADF; |
| 52 | if (!is_dictobject(v)) |
| 53 | return errno = EINVAL; |
| 54 | DECREF(((moduleobject *)m) -> md_dict); |
| 55 | INCREF(v); |
| 56 | ((moduleobject *)m) -> md_dict = v; |
| 57 | return 0; |
| 58 | } |
| 59 | |
| 60 | /* Methods */ |
| 61 | |
| 62 | static void |
| 63 | moduledealloc(m) |
| 64 | moduleobject *m; |
| 65 | { |
| 66 | if (m->md_name != NULL) |
| 67 | DECREF(m->md_name); |
| 68 | if (m->md_dict != NULL) |
| 69 | DECREF(m->md_dict); |
| 70 | free((char *)m); |
| 71 | } |
| 72 | |
| 73 | static void |
| 74 | moduleprint(m, fp, flags) |
| 75 | moduleobject *m; |
| 76 | FILE *fp; |
| 77 | int flags; |
| 78 | { |
| 79 | fprintf(fp, "<module %s>", getstringvalue(m->md_name)); |
| 80 | } |
| 81 | |
| 82 | static object * |
| 83 | modulerepr(m) |
| 84 | moduleobject *m; |
| 85 | { |
| 86 | char buf[100]; |
| 87 | sprintf(buf, "<module %.80s>", getstringvalue(m->md_name)); |
| 88 | return newstringobject(buf); |
| 89 | } |
| 90 | |
| 91 | static object * |
| 92 | modulegetattr(m, name) |
| 93 | moduleobject *m; |
| 94 | char *name; |
| 95 | { |
| 96 | object *res = dictlookup(m->md_dict, name); |
| 97 | if (res == NULL) { |
| 98 | if (errno == ENOENT) |
| 99 | errno = ESRCH; |
| 100 | } |
| 101 | else |
| 102 | INCREF(res); |
| 103 | return res; |
| 104 | } |
| 105 | |
| 106 | static int |
| 107 | modulesetattr(m, name, v) |
| 108 | moduleobject *m; |
| 109 | char *name; |
| 110 | object *v; |
| 111 | { |
| 112 | if (v == NULL) |
| 113 | return dictremove(m->md_dict, name); |
| 114 | else |
| 115 | return dictinsert(m->md_dict, name, v); |
| 116 | } |
| 117 | |
| 118 | typeobject Moduletype = { |
| 119 | OB_HEAD_INIT(&Typetype) |
| 120 | 0, /*ob_size*/ |
| 121 | "module", /*tp_name*/ |
| 122 | sizeof(moduleobject), /*tp_size*/ |
| 123 | 0, /*tp_itemsize*/ |
| 124 | moduledealloc, /*tp_dealloc*/ |
| 125 | moduleprint, /*tp_print*/ |
| 126 | modulegetattr, /*tp_getattr*/ |
| 127 | modulesetattr, /*tp_setattr*/ |
| 128 | 0, /*tp_compare*/ |
| 129 | modulerepr, /*tp_repr*/ |
| 130 | }; |