96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
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#include <stdlib.h>
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#include <assert.h>
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#include "nlr.h"
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "obj.h"
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#include "runtime.h"
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#if MICROPY_ENABLE_PROPERTY
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typedef struct _mp_obj_property_t {
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mp_obj_base_t base;
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mp_obj_t proxy[3]; // getter, setter, deleter
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} mp_obj_property_t;
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STATIC mp_obj_t property_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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// TODO check n_kw == 0
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mp_obj_property_t *o = m_new_obj(mp_obj_property_t);
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o->base.type = &mp_type_property;
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if (n_args >= 5) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "property takes at most 4 arguments"));
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}
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if (n_args >= 4) {
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// doc ignored
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}
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if (n_args >= 3) {
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o->proxy[2] = args[2];
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} else {
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o->proxy[2] = mp_const_none;
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}
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if (n_args >= 2) {
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o->proxy[1] = args[1];
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} else {
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o->proxy[1] = mp_const_none;
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}
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if (n_args >= 1) {
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o->proxy[0] = args[0];
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} else {
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o->proxy[0] = mp_const_none;
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}
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return o;
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}
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STATIC mp_obj_t property_getter(mp_obj_t self_in, mp_obj_t getter) {
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mp_obj_property_t *p2 = m_new_obj(mp_obj_property_t);
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*p2 = *(mp_obj_property_t*)self_in;
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p2->proxy[0] = getter;
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return p2;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(property_getter_obj, property_getter);
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STATIC mp_obj_t property_setter(mp_obj_t self_in, mp_obj_t setter) {
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mp_obj_property_t *p2 = m_new_obj(mp_obj_property_t);
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*p2 = *(mp_obj_property_t*)self_in;
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p2->proxy[1] = setter;
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return p2;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(property_setter_obj, property_setter);
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STATIC mp_obj_t property_deleter(mp_obj_t self_in, mp_obj_t deleter) {
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mp_obj_property_t *p2 = m_new_obj(mp_obj_property_t);
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*p2 = *(mp_obj_property_t*)self_in;
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p2->proxy[2] = deleter;
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return p2;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(property_deleter_obj, property_deleter);
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STATIC const mp_map_elem_t property_locals_dict_table[] = {
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{ MP_OBJ_NEW_QSTR(MP_QSTR_getter), (mp_obj_t)&property_getter_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_setter), (mp_obj_t)&property_setter_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_deleter), (mp_obj_t)&property_deleter_obj },
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};
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STATIC MP_DEFINE_CONST_DICT(property_locals_dict, property_locals_dict_table);
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const mp_obj_type_t mp_type_property = {
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{ &mp_type_type },
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.name = MP_QSTR_property,
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.make_new = property_make_new,
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.locals_dict = (mp_obj_t)&property_locals_dict,
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};
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const mp_obj_t *mp_obj_property_get(mp_obj_t self_in) {
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assert(MP_OBJ_IS_TYPE(self_in, &mp_type_property));
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mp_obj_property_t *self = self_in;
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return self->proxy;
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}
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#endif // MICROPY_ENABLE_PROPERTY
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