141 lines
5.3 KiB
C
141 lines
5.3 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 <stdint.h>
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#include "mpconfig.h"
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#include "nlr.h"
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#include "misc.h"
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#include "qstr.h"
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#include "obj.h"
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#include "builtin.h"
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#include "runtime.h"
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#include "objlist.h"
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#include "objtuple.h"
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#include "objstr.h"
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#include "mpz.h"
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#include "objint.h"
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#if MICROPY_PY_SYS
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/// \module sys - system specific functions
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// These two lists must be initialised per port (after the call to mp_init).
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// TODO document these properly, they aren't constants or functions...
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/// \constant path - a mutable list of directories to search for imported modules
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mp_obj_list_t mp_sys_path_obj;
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/// \constant argv - a mutable list of arguments this program started with
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mp_obj_list_t mp_sys_argv_obj;
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/// \constant version - Python language version that this implementation conforms to, as a string
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STATIC const MP_DEFINE_STR_OBJ(version_obj, "3.4.0");
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/// \constant version_info - Python language version that this implementation conforms to, as a tuple of ints
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#define I(n) MP_OBJ_NEW_SMALL_INT(n)
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// TODO: CPython is now at 5-element array, but save 2 els so far...
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STATIC const mp_obj_tuple_t mp_sys_version_info_obj = {{&mp_type_tuple}, 3, {I(3), I(4), I(0)}};
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#undef I
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#ifdef MICROPY_PY_SYS_PLATFORM
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/// \constant platform - the platform that Micro Python is running on
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STATIC const MP_DEFINE_STR_OBJ(platform_obj, MICROPY_PY_SYS_PLATFORM);
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#endif
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/// \function exit([retval])
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/// Raise a `SystemExit` exception. If an argument is given, it is the
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/// value given to `SystemExit`.
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STATIC mp_obj_t mp_sys_exit(mp_uint_t n_args, const mp_obj_t *args) {
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mp_obj_t exc;
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if (n_args == 0) {
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exc = mp_obj_new_exception(&mp_type_SystemExit);
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} else {
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exc = mp_obj_new_exception_arg1(&mp_type_SystemExit, args[0]);
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}
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nlr_raise(exc);
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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_sys_exit_obj, 0, 1, mp_sys_exit);
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STATIC const mp_map_elem_t mp_module_sys_globals_table[] = {
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{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_sys) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_path), (mp_obj_t)&mp_sys_path_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_argv), (mp_obj_t)&mp_sys_argv_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_version), (mp_obj_t)&version_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_version_info), (mp_obj_t)&mp_sys_version_info_obj },
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#ifdef MICROPY_PY_SYS_PLATFORM
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{ MP_OBJ_NEW_QSTR(MP_QSTR_platform), (mp_obj_t)&platform_obj },
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#endif
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/// \constant byteorder - the byte order of the system ("little" or "big")
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#if MP_ENDIANNESS_LITTLE
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{ MP_OBJ_NEW_QSTR(MP_QSTR_byteorder), MP_OBJ_NEW_QSTR(MP_QSTR_little) },
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#else
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{ MP_OBJ_NEW_QSTR(MP_QSTR_byteorder), MP_OBJ_NEW_QSTR(MP_QSTR_big) },
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#endif
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#if MICROPY_PY_SYS_MAXSIZE
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#if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_NONE
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// INT_MAX is not representable as small int, as we know that small int
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// takes one bit for tag. So, we have little choice but to provide this
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// value. Apps also should be careful to not try to compare sys.maxsize
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// with some number (which may not fit in available int size), but instead
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// count number of significant bits in sys.maxsize.
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{ MP_OBJ_NEW_QSTR(MP_QSTR_maxsize), MP_OBJ_NEW_SMALL_INT(INT_MAX >> 1) },
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#else
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{ MP_OBJ_NEW_QSTR(MP_QSTR_maxsize), (mp_obj_t)&mp_maxsize_obj },
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#endif
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#endif
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#if MICROPY_PY_SYS_EXIT
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// documented per-port
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{ MP_OBJ_NEW_QSTR(MP_QSTR_exit), (mp_obj_t)&mp_sys_exit_obj },
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#endif
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#if MICROPY_PY_SYS_STDFILES
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// documented per-port
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{ MP_OBJ_NEW_QSTR(MP_QSTR_stdin), (mp_obj_t)&mp_sys_stdin_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_stdout), (mp_obj_t)&mp_sys_stdout_obj },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_stderr), (mp_obj_t)&mp_sys_stderr_obj },
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#endif
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};
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STATIC const mp_obj_dict_t mp_module_sys_globals = {
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.base = {&mp_type_dict},
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.map = {
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.all_keys_are_qstrs = 1,
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.table_is_fixed_array = 1,
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.used = MP_ARRAY_SIZE(mp_module_sys_globals_table),
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.alloc = MP_ARRAY_SIZE(mp_module_sys_globals_table),
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.table = (mp_map_elem_t*)mp_module_sys_globals_table,
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},
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};
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const mp_obj_module_t mp_module_sys = {
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.base = { &mp_type_module },
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.name = MP_QSTR_sys,
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.globals = (mp_obj_dict_t*)&mp_module_sys_globals,
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};
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#endif
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