[mpy/files] __enter__, __exit__

This commit is contained in:
M4x1m3
2020-07-05 15:08:39 +02:00
parent 1aebec52bb
commit a47ef29236
2 changed files with 63 additions and 0 deletions

View File

@@ -506,6 +506,7 @@ Q(isatty)
Q(readable)
Q(seekable)
Q(write)
Q(writable)
Q(SEEK_SET)
Q(SEEK_CUR)
Q(SEEK_END)

View File

@@ -61,6 +61,21 @@ const mp_obj_fun_builtin_fixed_t file_close_obj = {
{(mp_fun_0_t)file_close}
};
STATIC mp_obj_t file___enter__(mp_obj_t o_in);
const mp_obj_fun_builtin_fixed_t file___enter___obj = {
{&mp_type_fun_builtin_1},
{(mp_fun_0_t)file___enter__}
};
STATIC mp_obj_t file___exit__(size_t n_args, const mp_obj_t* args);
const mp_obj_fun_builtin_var_t file___exit___obj = {
{&mp_type_fun_builtin_var},
MP_OBJ_FUN_MAKE_SIG(4, 4, false),
{(mp_fun_var_t)file___exit__}
};
STATIC mp_obj_t file_fileno(mp_obj_t o_in);
const mp_obj_fun_builtin_fixed_t file_fileno_obj = {
@@ -89,6 +104,13 @@ const mp_obj_fun_builtin_fixed_t file_readable_obj = {
{(mp_fun_0_t)file_readable}
};
STATIC mp_obj_t file_writable(mp_obj_t o_in);
const mp_obj_fun_builtin_fixed_t file_writable_obj = {
{&mp_type_fun_builtin_1},
{(mp_fun_0_t)file_writable}
};
STATIC const mp_rom_map_elem_t file_type_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_SEEK_SET), MP_ROM_INT(0) },
{ MP_ROM_QSTR(MP_QSTR_SEEK_CUR), MP_ROM_INT(1) },
@@ -157,6 +179,12 @@ STATIC void file_attr(mp_obj_t self_in, qstr attribute, mp_obj_t *destination) {
case MP_QSTR_closed:
destination[0] = mp_obj_new_bool(self->closed);
break;
case MP_QSTR___enter__:
destination[0] = (mp_obj_t) MP_ROM_PTR(&file___enter___obj);
break;
case MP_QSTR___exit__:
destination[0] = (mp_obj_t) MP_ROM_PTR(&file___exit___obj);
break;
case MP_QSTR_close:
destination[0] = (mp_obj_t) MP_ROM_PTR(&file_close_obj);
break;
@@ -412,6 +440,25 @@ void check_closed(file_obj_t* file) {
// Methods
STATIC mp_obj_t file___enter__(mp_obj_t o_in) {
if(!mp_obj_is_type(o_in, &file_type)) {
mp_raise_TypeError("self must be a file!");
}
return o_in;
}
STATIC mp_obj_t file___exit__(size_t n_args, const mp_obj_t* args) {
mp_arg_check_num(n_args, 0, 4, 4, false);
if(!mp_obj_is_type(args[0], &file_type)) {
mp_raise_TypeError("self must be a file!");
}
return file_close(args[0]);
}
STATIC mp_obj_t file_close(mp_obj_t o_in) {
if(!mp_obj_is_type(o_in, &file_type)) {
mp_raise_TypeError("self must be a file!");
@@ -536,10 +583,25 @@ STATIC mp_obj_t file_isatty(mp_obj_t o_in) {
return mp_const_false;
}
STATIC mp_obj_t file_writable(mp_obj_t o_in) {
file_obj_t *file = (file_obj_t*) MP_OBJ_TO_PTR(o_in);
check_closed(file);
if (file->open_mode == READ && file->edit_mode != true) {
return mp_const_false;
}
return mp_const_true;
}
STATIC mp_obj_t file_readable(mp_obj_t o_in) {
file_obj_t *file = (file_obj_t*) MP_OBJ_TO_PTR(o_in);
check_closed(file);
if (file->open_mode != READ && file->edit_mode != true) {
return mp_const_false;
}
return mp_const_true;
}