Colin Hogben / micropython

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Dependents:   micropython-repl

py/objzip.c@0:5868e8752d44, 2016-04-16 (annotated)

Committer:
pythontech
Date:
Sat Apr 16 17:11:56 2016 +0000
Revision:
0:5868e8752d44
Split off library from repl

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pythontech 0:5868e8752d44 1 /*
pythontech 0:5868e8752d44 2 * This file is part of the Micro Python project, http://micropython.org/
pythontech 0:5868e8752d44 3 *
pythontech 0:5868e8752d44 4 * The MIT License (MIT)
pythontech 0:5868e8752d44 5 *
pythontech 0:5868e8752d44 6 * Copyright (c) 2013, 2014 Damien P. George
pythontech 0:5868e8752d44 7 *
pythontech 0:5868e8752d44 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
pythontech 0:5868e8752d44 9 * of this software and associated documentation files (the "Software"), to deal
pythontech 0:5868e8752d44 10 * in the Software without restriction, including without limitation the rights
pythontech 0:5868e8752d44 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
pythontech 0:5868e8752d44 12 * copies of the Software, and to permit persons to whom the Software is
pythontech 0:5868e8752d44 13 * furnished to do so, subject to the following conditions:
pythontech 0:5868e8752d44 14 *
pythontech 0:5868e8752d44 15 * The above copyright notice and this permission notice shall be included in
pythontech 0:5868e8752d44 16 * all copies or substantial portions of the Software.
pythontech 0:5868e8752d44 17 *
pythontech 0:5868e8752d44 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
pythontech 0:5868e8752d44 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
pythontech 0:5868e8752d44 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
pythontech 0:5868e8752d44 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
pythontech 0:5868e8752d44 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
pythontech 0:5868e8752d44 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
pythontech 0:5868e8752d44 24 * THE SOFTWARE.
pythontech 0:5868e8752d44 25 */
pythontech 0:5868e8752d44 26
pythontech 0:5868e8752d44 27 #include <stdlib.h>
pythontech 0:5868e8752d44 28 #include <assert.h>
pythontech 0:5868e8752d44 29
pythontech 0:5868e8752d44 30 #include "py/objtuple.h"
pythontech 0:5868e8752d44 31 #include "py/runtime.h"
pythontech 0:5868e8752d44 32
pythontech 0:5868e8752d44 33 typedef struct _mp_obj_zip_t {
pythontech 0:5868e8752d44 34 mp_obj_base_t base;
pythontech 0:5868e8752d44 35 mp_uint_t n_iters;
pythontech 0:5868e8752d44 36 mp_obj_t iters[];
pythontech 0:5868e8752d44 37 } mp_obj_zip_t;
pythontech 0:5868e8752d44 38
pythontech 0:5868e8752d44 39 STATIC mp_obj_t zip_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
pythontech 0:5868e8752d44 40 mp_arg_check_num(n_args, n_kw, 0, MP_OBJ_FUN_ARGS_MAX, false);
pythontech 0:5868e8752d44 41
pythontech 0:5868e8752d44 42 mp_obj_zip_t *o = m_new_obj_var(mp_obj_zip_t, mp_obj_t, n_args);
pythontech 0:5868e8752d44 43 o->base.type = type;
pythontech 0:5868e8752d44 44 o->n_iters = n_args;
pythontech 0:5868e8752d44 45 for (mp_uint_t i = 0; i < n_args; i++) {
pythontech 0:5868e8752d44 46 o->iters[i] = mp_getiter(args[i]);
pythontech 0:5868e8752d44 47 }
pythontech 0:5868e8752d44 48 return MP_OBJ_FROM_PTR(o);
pythontech 0:5868e8752d44 49 }
pythontech 0:5868e8752d44 50
pythontech 0:5868e8752d44 51 STATIC mp_obj_t zip_iternext(mp_obj_t self_in) {
pythontech 0:5868e8752d44 52 assert(MP_OBJ_IS_TYPE(self_in, &mp_type_zip));
pythontech 0:5868e8752d44 53 mp_obj_zip_t *self = MP_OBJ_TO_PTR(self_in);
pythontech 0:5868e8752d44 54 if (self->n_iters == 0) {
pythontech 0:5868e8752d44 55 return MP_OBJ_STOP_ITERATION;
pythontech 0:5868e8752d44 56 }
pythontech 0:5868e8752d44 57 mp_obj_tuple_t *tuple = MP_OBJ_TO_PTR(mp_obj_new_tuple(self->n_iters, NULL));
pythontech 0:5868e8752d44 58
pythontech 0:5868e8752d44 59 for (mp_uint_t i = 0; i < self->n_iters; i++) {
pythontech 0:5868e8752d44 60 mp_obj_t next = mp_iternext(self->iters[i]);
pythontech 0:5868e8752d44 61 if (next == MP_OBJ_STOP_ITERATION) {
pythontech 0:5868e8752d44 62 mp_obj_tuple_del(MP_OBJ_FROM_PTR(tuple));
pythontech 0:5868e8752d44 63 return MP_OBJ_STOP_ITERATION;
pythontech 0:5868e8752d44 64 }
pythontech 0:5868e8752d44 65 tuple->items[i] = next;
pythontech 0:5868e8752d44 66 }
pythontech 0:5868e8752d44 67 return MP_OBJ_FROM_PTR(tuple);
pythontech 0:5868e8752d44 68 }
pythontech 0:5868e8752d44 69
pythontech 0:5868e8752d44 70 const mp_obj_type_t mp_type_zip = {
pythontech 0:5868e8752d44 71 { &mp_type_type },
pythontech 0:5868e8752d44 72 .name = MP_QSTR_zip,
pythontech 0:5868e8752d44 73 .make_new = zip_make_new,
pythontech 0:5868e8752d44 74 .getiter = mp_identity,
pythontech 0:5868e8752d44 75 .iternext = zip_iternext,
pythontech 0:5868e8752d44 76 };