1 /*
2 * This file is part of the MicroPython project, http://micropython.org/
3 *
4 * The MIT License (MIT)
5 *
6 * Copyright (c) 2013, 2014 Damien P. George
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 */
26
27 #include <stdlib.h>
28
29 #include "py/objtype.h"
30 #include "py/runtime.h"
31
32 typedef struct _mp_obj_object_t {
33 mp_obj_base_t base;
34 } mp_obj_object_t;
35
object_make_new(const mp_obj_type_t * type,size_t n_args,size_t n_kw,const mp_obj_t * args)36 STATIC mp_obj_t object_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
37 (void)args;
38 mp_arg_check_num(n_args, n_kw, 0, 0, false);
39 mp_obj_object_t *o = m_new_obj(mp_obj_object_t);
40 o->base.type = type;
41 return MP_OBJ_FROM_PTR(o);
42 }
43
44 #if MICROPY_CPYTHON_COMPAT
object___init__(mp_obj_t self)45 STATIC mp_obj_t object___init__(mp_obj_t self) {
46 (void)self;
47 return mp_const_none;
48 }
49 STATIC MP_DEFINE_CONST_FUN_OBJ_1(object___init___obj, object___init__);
50
object___new__(mp_obj_t cls)51 STATIC mp_obj_t object___new__(mp_obj_t cls) {
52 if (!mp_obj_is_type(cls, &mp_type_type) || !mp_obj_is_instance_type((mp_obj_type_t *)MP_OBJ_TO_PTR(cls))) {
53 mp_raise_TypeError(MP_ERROR_TEXT("arg must be user-type"));
54 }
55 // This executes only "__new__" part of instance creation.
56 // TODO: This won't work well for classes with native bases.
57 // TODO: This is a hack, should be resolved along the lines of
58 // https://github.com/micropython/micropython/issues/606#issuecomment-43685883
59 const mp_obj_type_t *native_base;
60 return MP_OBJ_FROM_PTR(mp_obj_new_instance(MP_OBJ_TO_PTR(cls), &native_base));
61 }
62 STATIC MP_DEFINE_CONST_FUN_OBJ_1(object___new___fun_obj, object___new__);
63 STATIC MP_DEFINE_CONST_STATICMETHOD_OBJ(object___new___obj, MP_ROM_PTR(&object___new___fun_obj));
64
65 #if MICROPY_PY_DELATTR_SETATTR
object___setattr__(mp_obj_t self_in,mp_obj_t attr,mp_obj_t value)66 STATIC mp_obj_t object___setattr__(mp_obj_t self_in, mp_obj_t attr, mp_obj_t value) {
67 if (!mp_obj_is_instance_type(mp_obj_get_type(self_in))) {
68 mp_raise_TypeError(MP_ERROR_TEXT("arg must be user-type"));
69 }
70
71 if (!mp_obj_is_str(attr)) {
72 mp_raise_TypeError(NULL);
73 }
74
75 mp_obj_instance_t *self = MP_OBJ_TO_PTR(self_in);
76 mp_map_lookup(&self->members, attr, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
77 return mp_const_none;
78 }
79 STATIC MP_DEFINE_CONST_FUN_OBJ_3(object___setattr___obj, object___setattr__);
80
object___delattr__(mp_obj_t self_in,mp_obj_t attr)81 STATIC mp_obj_t object___delattr__(mp_obj_t self_in, mp_obj_t attr) {
82 if (!mp_obj_is_instance_type(mp_obj_get_type(self_in))) {
83 mp_raise_TypeError(MP_ERROR_TEXT("arg must be user-type"));
84 }
85
86 if (!mp_obj_is_str(attr)) {
87 mp_raise_TypeError(NULL);
88 }
89
90 mp_obj_instance_t *self = MP_OBJ_TO_PTR(self_in);
91 if (mp_map_lookup(&self->members, attr, MP_MAP_LOOKUP_REMOVE_IF_FOUND) == NULL) {
92 mp_raise_msg(&mp_type_AttributeError, MP_ERROR_TEXT("no such attribute"));
93 }
94 return mp_const_none;
95 }
96 STATIC MP_DEFINE_CONST_FUN_OBJ_2(object___delattr___obj, object___delattr__);
97 #endif
98
99 STATIC const mp_rom_map_elem_t object_locals_dict_table[] = {
100 #if MICROPY_CPYTHON_COMPAT
101 { MP_ROM_QSTR(MP_QSTR___init__), MP_ROM_PTR(&object___init___obj) },
102 #endif
103 #if MICROPY_CPYTHON_COMPAT
104 { MP_ROM_QSTR(MP_QSTR___new__), MP_ROM_PTR(&object___new___obj) },
105 #endif
106 #if MICROPY_PY_DELATTR_SETATTR
107 { MP_ROM_QSTR(MP_QSTR___setattr__), MP_ROM_PTR(&object___setattr___obj) },
108 { MP_ROM_QSTR(MP_QSTR___delattr__), MP_ROM_PTR(&object___delattr___obj) },
109 #endif
110 };
111
112 STATIC MP_DEFINE_CONST_DICT(object_locals_dict, object_locals_dict_table);
113 #endif
114
115 const mp_obj_type_t mp_type_object = {
116 { &mp_type_type },
117 .name = MP_QSTR_object,
118 .make_new = object_make_new,
119 #if MICROPY_CPYTHON_COMPAT
120 .locals_dict = (mp_obj_dict_t *)&object_locals_dict,
121 #endif
122 };
123