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Diffstat (limited to 'circuitpython/py/enum.c')
-rw-r--r-- | circuitpython/py/enum.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/circuitpython/py/enum.c b/circuitpython/py/enum.c new file mode 100644 index 0000000..4728c7f --- /dev/null +++ b/circuitpython/py/enum.c @@ -0,0 +1,52 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * SPDX-FileCopyrightText: Copyright (c) 2020 Jeff Epler for Adafruit Industries + * + * 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/enum.h" +#include "py/runtime.h" + +mp_obj_t cp_enum_find(const mp_obj_type_t *type, int value) { + const mp_obj_dict_t *dict = type->locals_dict; + for (size_t i = 0; i < dict->map.used; i++) { + const cp_enum_obj_t *v = MP_OBJ_TO_PTR(dict->map.table[i].value); + if (v->value == value) { + return (mp_obj_t)v; + } + } + return mp_const_none; +} + +int cp_enum_value(const mp_obj_type_t *type, mp_obj_t obj) { + if (!mp_obj_is_type(obj, type)) { + mp_raise_TypeError_varg(MP_ERROR_TEXT("Expected a %q"), type->name); + } + return ((cp_enum_obj_t *)MP_OBJ_TO_PTR(obj))->value; +} + +void cp_enum_obj_print_helper(uint16_t module, const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) { + (void)kind; + cp_enum_obj_t *self = MP_OBJ_TO_PTR(self_in); + mp_printf(print, "%q.%q.%q", module, self->base.type->name, self->name); +} |