Merge pull request #1 from adafruit/main

merge from adafruit

1 files changed, 65 insertions, 0 deletions

diff --git a/py/enum.h b/py/enum.h
new file mode 100644
index 000000000..1c38ae5ae
--- /dev/null
+++ b/py/enum.h
@@ -0,0 +1,65 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    int16_t value;
+    int16_t name;
+} cp_enum_obj_t;
+
+#define MAKE_ENUM_VALUE(type, prefix, name, value) \
+    STATIC const cp_enum_obj_t prefix ## _ ## name ## _obj = { \
+        { &type }, value, MP_QSTR_ ## name, \
+    }
+
+#define MAKE_ENUM_MAP(name) \
+    STATIC const mp_rom_map_elem_t name ## _locals_table[] =
+
+#define MAKE_ENUM_MAP_ENTRY(prefix, name) \
+    { MP_ROM_QSTR(MP_QSTR_ ## name), MP_ROM_PTR(&prefix ## _ ## name ## _obj) }
+
+#define MAKE_PRINTER(module, typename) \
+    STATIC void typename ## _ ## print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) { \
+        cp_enum_obj_print_helper(MP_QSTR_ ## module, print, self_in, kind); \
+    }
+
+#define MAKE_ENUM_TYPE(module, type, typename) \
+    const mp_obj_type_t typename ## _type = { \
+        { &mp_type_type }, \
+        .name = MP_QSTR_ ## type, \
+        .print = typename ## _print, \
+        .locals_dict = (mp_obj_t)&typename ## _locals_dict, \
+    }
+
+
+
+mp_obj_t cp_enum_find(const mp_obj_type_t *type, int value);
+int cp_enum_value(const mp_obj_type_t *type, mp_obj_t *obj);
+void cp_enum_obj_print_helper(uint16_t module, const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind);