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modsys: Add basic sys.exc_info() implementation.

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The implementation is very basic and non-compliant and provided solely for
CPython compatibility. The function itself is bad Python2 heritage, its
usage is discouraged.
This commit is contained in:
Paul Sokolovsky
2015-04-25 03:17:41 +03:00
parent cf5b6f6974
commit 8b85d14b92
8 changed files with 66 additions and 0 deletions
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24
py/modsys.c
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@@ -121,6 +121,26 @@ STATIC mp_obj_t mp_sys_print_exception(mp_uint_t n_args, const mp_obj_t *args) {
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_sys_print_exception_obj, 1, 2, mp_sys_print_exception);
#if MICROPY_PY_SYS_EXC_INFO
STATIC mp_obj_t mp_sys_exc_info(void) {
mp_obj_t cur_exc = MP_STATE_VM(cur_exception);
mp_obj_tuple_t *t = mp_obj_new_tuple(3, NULL);
if (cur_exc == MP_OBJ_NULL) {
t->items[0] = mp_const_none;
t->items[1] = mp_const_none;
t->items[2] = mp_const_none;
return t;
}
t->items[0] = mp_obj_get_type(cur_exc);
t->items[1] = cur_exc;
t->items[2] = mp_const_none;
return t;
}
MP_DEFINE_CONST_FUN_OBJ_0(mp_sys_exc_info_obj, mp_sys_exc_info);
#endif
STATIC const mp_map_elem_t mp_module_sys_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_sys) },
@@ -163,6 +183,10 @@ STATIC const mp_map_elem_t mp_module_sys_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_stderr), (mp_obj_t)&mp_sys_stderr_obj },
#endif
#if MICROPY_PY_SYS_EXC_INFO
{ MP_OBJ_NEW_QSTR(MP_QSTR_exc_info), (mp_obj_t)&mp_sys_exc_info_obj },
#endif
/*
* Extensions to CPython
*/