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/*

* This file is part of the MicroPython project, http://micropython.org/

*

* The MIT License (MIT)

*

* Copyright (c) 2015 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 "py/objtuple.h"

#if MICROPY_PY_ATTRTUPLE || MICROPY_PY_COLLECTIONS

// this helper function is used by collections.namedtuple

#if !MICROPY_PY_COLLECTIONS

STATIC

#endif

void mp_obj_attrtuple_print_helper(const mp_print_t *print, const qstr *fields, mp_obj_tuple_t *o) {

mp_print_str(print, "(");

for (size_t i = 0; i < o->len; i++) {

if (i > 0) {

mp_print_str(print, ", ");

}

mp_printf(print, "%q=", fields[i]);

mp_obj_print_helper(print, o->items[i], PRINT_REPR);

}

mp_print_str(print, ")");

}

#endif

#if MICROPY_PY_ATTRTUPLE

STATIC void mp_obj_attrtuple_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {

(void)kind;

mp_obj_tuple_t *o = MP_OBJ_TO_PTR(o_in);

const qstr *fields = (const qstr*)MP_OBJ_TO_PTR(o->items[o->len]);

mp_obj_attrtuple_print_helper(print, fields, o);

}

STATIC void mp_obj_attrtuple_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {

if (dest[0] == MP_OBJ_NULL) {

// load attribute

mp_obj_tuple_t *self = MP_OBJ_TO_PTR(self_in);

size_t len = self->len;

const qstr *fields = (const qstr*)MP_OBJ_TO_PTR(self->items[len]);

for (size_t i = 0; i < len; i++) {

if (fields[i] == attr) {

dest[0] = self->items[i];

return;

}

}

}

}

mp_obj_t mp_obj_new_attrtuple(const qstr *fields, size_t n, const mp_obj_t *items) {

mp_obj_tuple_t *o = m_new_obj_var(mp_obj_tuple_t, mp_obj_t, n + 1);

o->base.type = &mp_type_attrtuple;

o->len = n;

for (size_t i = 0; i < n; i++) {

o->items[i] = items[i];

}

o->items[n] = MP_OBJ_FROM_PTR(fields);

return MP_OBJ_FROM_PTR(o);

}

const mp_obj_type_t mp_type_attrtuple = {

{ &mp_type_type },

.name = MP_QSTR_tuple, // reuse tuple to save on a qstr

.print = mp_obj_attrtuple_print,

.unary_op = mp_obj_tuple_unary_op,

.binary_op = mp_obj_tuple_binary_op,

.attr = mp_obj_attrtuple_attr,

.subscr = mp_obj_tuple_subscr,

.getiter = mp_obj_tuple_getiter,

};

#endif // MICROPY_PY_ATTRTUPLE