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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 Mark Shannon
*
* 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/runtime.h"
#include "py/obj.h"
#include "py/stream.h"
#include "microbit/filesystem.h"
static mp_obj_t microbit_file_writable(mp_obj_t self) {
return mp_obj_new_bool(((file_descriptor_obj *)self)->writable);
}
MP_DEFINE_CONST_FUN_OBJ_1(microbit_file_writable_obj, microbit_file_writable);
MP_DEFINE_CONST_FUN_OBJ_1(microbit_file_name_obj, (mp_fun_1_t)microbit_file_name);
static mp_obj_t microbit_file_close_func(mp_obj_t self_in) {
microbit_file_close((file_descriptor_obj *)self_in);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(microbit_file_close_obj, microbit_file_close_func);
STATIC mp_obj_t file___exit__(size_t n_args, const mp_obj_t *args) {
(void)n_args;
return microbit_file_close_func(args[0]);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(file___exit___obj, 4, 4, file___exit__);
static const mp_map_elem_t microbit_file_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_close), (mp_obj_t)µbit_file_close_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_name), (mp_obj_t)µbit_file_name_obj },
{ MP_ROM_QSTR(MP_QSTR___enter__), (mp_obj_t)&mp_identity_obj },
{ MP_ROM_QSTR(MP_QSTR___exit__), (mp_obj_t)&file___exit___obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_writable), (mp_obj_t)µbit_file_writable_obj },
/* Stream methods */
{ MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&mp_stream_read_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_readinto), (mp_obj_t)&mp_stream_readinto_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_readline), (mp_obj_t)&mp_stream_unbuffered_readline_obj},
{ MP_OBJ_NEW_QSTR(MP_QSTR_write), (mp_obj_t)&mp_stream_write_obj },
};
static MP_DEFINE_CONST_DICT(microbit_file_locals_dict, microbit_file_locals_dict_table);
STATIC const mp_stream_p_t bytesio_stream_p = {
.read = microbit_file_read,
.write = microbit_file_write,
};
const mp_obj_type_t microbit_bytesio_type = {
{ &mp_type_type },
.name = MP_QSTR_BytesIO,
.print = NULL,
.make_new = NULL,
.call = NULL,
.unary_op = NULL,
.binary_op = NULL,
.attr = NULL,
.subscr = NULL,
.getiter = NULL,
.iternext = NULL,
.buffer_p = {NULL},
.protocol = &bytesio_stream_p,
.parent = NULL,
.locals_dict = (mp_obj_dict_t*)µbit_file_locals_dict,
};
STATIC const mp_stream_p_t textio_stream_p = {
.read = microbit_file_read,
.write = microbit_file_write,
.is_text = true,
};
const mp_obj_type_t microbit_textio_type = {
{ &mp_type_type },
.name = MP_QSTR_TextIO,
.print = NULL,
.make_new = NULL,
.call = NULL,
.unary_op = NULL,
.binary_op = NULL,
.attr = NULL,
.subscr = NULL,
.getiter = NULL,
.iternext = NULL,
.buffer_p = {NULL},
.protocol = &textio_stream_p,
.parent = NULL,
.locals_dict = (mp_obj_dict_t*)µbit_file_locals_dict,
};
static mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *args) {
/// -1 means default; 0 explicitly false; 1 explicitly true.
int read = -1;
int text = -1;
if (n_args == 2) {
mp_uint_t len;
const char *mode = mp_obj_str_get_data(args[1], &len);
for (mp_uint_t i = 0; i < len; i++) {
if (mode[i] == 'r' || mode[i] == 'w') {
if (read >= 0) {
goto mode_error;
}
read = (mode[i] == 'r');
} else if (mode[i] == 'b' || mode[i] == 't') {
if (text >= 0) {
goto mode_error;
}
text = (mode[i] == 't');
} else {
goto mode_error;
}
}
}
mp_uint_t name_len;
const char *filename = mp_obj_str_get_data(args[0], &name_len);
file_descriptor_obj *res = microbit_file_open(filename, name_len, read == 0, text == 0);
if (res == NULL) {
mp_raise_msg(&mp_type_OSError, "file not found");
}
return res;
mode_error:
mp_raise_ValueError("illegal mode");
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_open_obj, 1, 2, mp_builtin_open);
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