micropython/py/objobject.c

127 lines
4.6 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdlib.h>
#include "py/objtype.h"
#include "py/runtime.h"
typedef struct _mp_obj_object_t {
mp_obj_base_t base;
} mp_obj_object_t;
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) {
(void)args;
mp_arg_check_num(n_args, n_kw, 0, 0, false);
mp_obj_object_t *o = mp_obj_malloc(mp_obj_object_t, type);
return MP_OBJ_FROM_PTR(o);
}
#if MICROPY_CPYTHON_COMPAT
STATIC mp_obj_t object___init__(mp_obj_t self) {
(void)self;
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(object___init___obj, object___init__);
STATIC mp_obj_t object___new__(mp_obj_t cls) {
if (!mp_obj_is_type(cls, &mp_type_type) || !mp_obj_is_instance_type((mp_obj_type_t *)MP_OBJ_TO_PTR(cls))) {
mp_raise_TypeError(MP_ERROR_TEXT("arg must be user-type"));
}
// This executes only "__new__" part of instance creation.
// TODO: This won't work well for classes with native bases.
// TODO: This is a hack, should be resolved along the lines of
// https://github.com/micropython/micropython/issues/606#issuecomment-43685883
const mp_obj_type_t *native_base;
return MP_OBJ_FROM_PTR(mp_obj_new_instance(MP_OBJ_TO_PTR(cls), &native_base));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(object___new___fun_obj, object___new__);
STATIC MP_DEFINE_CONST_STATICMETHOD_OBJ(object___new___obj, MP_ROM_PTR(&object___new___fun_obj));
#if MICROPY_PY_DELATTR_SETATTR
STATIC mp_obj_t object___setattr__(mp_obj_t self_in, mp_obj_t attr, mp_obj_t value) {
if (!mp_obj_is_instance_type(mp_obj_get_type(self_in))) {
mp_raise_TypeError(MP_ERROR_TEXT("arg must be user-type"));
}
if (!mp_obj_is_str(attr)) {
mp_raise_TypeError(NULL);
}
mp_obj_instance_t *self = MP_OBJ_TO_PTR(self_in);
mp_map_lookup(&self->members, attr, MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(object___setattr___obj, object___setattr__);
STATIC mp_obj_t object___delattr__(mp_obj_t self_in, mp_obj_t attr) {
if (!mp_obj_is_instance_type(mp_obj_get_type(self_in))) {
mp_raise_TypeError(MP_ERROR_TEXT("arg must be user-type"));
}
if (!mp_obj_is_str(attr)) {
mp_raise_TypeError(NULL);
}
mp_obj_instance_t *self = MP_OBJ_TO_PTR(self_in);
if (mp_map_lookup(&self->members, attr, MP_MAP_LOOKUP_REMOVE_IF_FOUND) == NULL) {
mp_raise_msg(&mp_type_AttributeError, MP_ERROR_TEXT("no such attribute"));
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(object___delattr___obj, object___delattr__);
#endif
STATIC const mp_rom_map_elem_t object_locals_dict_table[] = {
#if MICROPY_CPYTHON_COMPAT
{ MP_ROM_QSTR(MP_QSTR___init__), MP_ROM_PTR(&object___init___obj) },
#endif
#if MICROPY_CPYTHON_COMPAT
{ MP_ROM_QSTR(MP_QSTR___new__), MP_ROM_PTR(&object___new___obj) },
#endif
#if MICROPY_PY_DELATTR_SETATTR
{ MP_ROM_QSTR(MP_QSTR___setattr__), MP_ROM_PTR(&object___setattr___obj) },
{ MP_ROM_QSTR(MP_QSTR___delattr__), MP_ROM_PTR(&object___delattr___obj) },
#endif
};
STATIC MP_DEFINE_CONST_DICT(object_locals_dict, object_locals_dict_table);
#endif
#if MICROPY_CPYTHON_COMPAT
#define OBJECT_TYPE_LOCALS_DICT , locals_dict, &object_locals_dict
#else
#define OBJECT_TYPE_LOCALS_DICT
#endif
MP_DEFINE_CONST_OBJ_TYPE(
mp_type_object,
MP_QSTR_object,
MP_TYPE_FLAG_NONE,
make_new, object_make_new
OBJECT_TYPE_LOCALS_DICT
);