mirror of
https://github.com/licsber/micropython.git
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491cbd6a7c
Need to have a policy as to how far we go adding keyword support to built ins. It's nice to have, and gets better CPython compatibility, but hurts the micro nature of uPy. Addresses issue #577.
83 lines
2.8 KiB
C
83 lines
2.8 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdlib.h>
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#include <assert.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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typedef struct _mp_obj_enumerate_t {
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mp_obj_base_t base;
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mp_obj_t iter;
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machine_int_t cur;
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} mp_obj_enumerate_t;
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STATIC mp_obj_t enumerate_iternext(mp_obj_t self_in);
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STATIC const mp_arg_t enumerate_make_new_args[] = {
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{ MP_QSTR_iterable, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
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{ MP_QSTR_start, MP_ARG_INT, {.u_int = 0} },
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};
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#define ENUMERATE_MAKE_NEW_NUM_ARGS ARRAY_SIZE(enumerate_make_new_args)
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STATIC mp_obj_t enumerate_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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// parse args
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mp_arg_val_t vals[ENUMERATE_MAKE_NEW_NUM_ARGS];
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mp_arg_parse_all_kw_array(n_args, n_kw, args, ENUMERATE_MAKE_NEW_NUM_ARGS, enumerate_make_new_args, vals);
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// create enumerate object
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mp_obj_enumerate_t *o = m_new_obj(mp_obj_enumerate_t);
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o->base.type = &mp_type_enumerate;
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o->iter = mp_getiter(vals[0].u_obj);
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o->cur = vals[1].u_int;
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return o;
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}
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const mp_obj_type_t mp_type_enumerate = {
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{ &mp_type_type },
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.name = MP_QSTR_enumerate,
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.make_new = enumerate_make_new,
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.iternext = enumerate_iternext,
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.getiter = mp_identity,
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};
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STATIC mp_obj_t enumerate_iternext(mp_obj_t self_in) {
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assert(MP_OBJ_IS_TYPE(self_in, &mp_type_enumerate));
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mp_obj_enumerate_t *self = self_in;
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mp_obj_t next = mp_iternext(self->iter);
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if (next == MP_OBJ_STOP_ITERATION) {
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return MP_OBJ_STOP_ITERATION;
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} else {
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mp_obj_t items[] = {MP_OBJ_NEW_SMALL_INT(self->cur++), next};
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return mp_obj_new_tuple(2, items);
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}
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}
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