add circuitpython code

1 files changed, 119 insertions, 0 deletions

diff --git a/circuitpython/py/objproperty.c b/circuitpython/py/objproperty.c
new file mode 100644
index 0000000..e8ae509
--- /dev/null
+++ b/circuitpython/py/objproperty.c
@@ -0,0 +1,119 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2013, 2014 Damien P. George
+ *
+ * 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 <stdlib.h>
+#include <assert.h>
+
+#include "py/nlr.h"
+#include "py/objproperty.h"
+#include "py/runtime.h"
+
+#if MICROPY_PY_BUILTINS_PROPERTY
+
+STATIC mp_obj_t property_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
+    enum { ARG_fget, ARG_fset, ARG_fdel, ARG_doc };
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
+        { MP_QSTR_, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
+        { MP_QSTR_, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
+        { MP_QSTR_doc, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
+    };
+    mp_arg_val_t vals[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, vals);
+
+    mp_obj_property_t *o = m_new_obj(mp_obj_property_t);
+    o->base.type = type;
+    o->proxy[0] = vals[ARG_fget].u_obj;
+    o->proxy[1] = vals[ARG_fset].u_obj;
+    o->proxy[2] = vals[ARG_fdel].u_obj;
+    // vals[ARG_doc] is silently discarded
+    return MP_OBJ_FROM_PTR(o);
+}
+
+STATIC mp_obj_t property_getter(mp_obj_t self_in, mp_obj_t getter) {
+    mp_obj_property_t *p2 = m_new_obj(mp_obj_property_t);
+    *p2 = *(mp_obj_property_t *)MP_OBJ_TO_PTR(self_in);
+    p2->proxy[0] = getter;
+    return MP_OBJ_FROM_PTR(p2);
+}
+
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(property_getter_obj, property_getter);
+
+STATIC mp_obj_t property_setter(mp_obj_t self_in, mp_obj_t setter) {
+    mp_obj_property_t *p2 = m_new_obj(mp_obj_property_t);
+    *p2 = *(mp_obj_property_t *)MP_OBJ_TO_PTR(self_in);
+    p2->proxy[1] = setter;
+    return MP_OBJ_FROM_PTR(p2);
+}
+
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(property_setter_obj, property_setter);
+
+STATIC mp_obj_t property_deleter(mp_obj_t self_in, mp_obj_t deleter) {
+    mp_obj_property_t *p2 = m_new_obj(mp_obj_property_t);
+    *p2 = *(mp_obj_property_t *)MP_OBJ_TO_PTR(self_in);
+    p2->proxy[2] = deleter;
+    return MP_OBJ_FROM_PTR(p2);
+}
+
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(property_deleter_obj, property_deleter);
+
+STATIC const mp_rom_map_elem_t property_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_getter), MP_ROM_PTR(&property_getter_obj) },
+    { MP_ROM_QSTR(MP_QSTR_setter), MP_ROM_PTR(&property_setter_obj) },
+    { MP_ROM_QSTR(MP_QSTR_deleter), MP_ROM_PTR(&property_deleter_obj) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(property_locals_dict, property_locals_dict_table);
+
+const mp_obj_type_t mp_type_property = {
+    { &mp_type_type },
+    .name = MP_QSTR_property,
+    .make_new = property_make_new,
+    .locals_dict = (mp_obj_dict_t *)&property_locals_dict,
+};
+
+#if MICROPY_PY_OPTIMIZE_PROPERTY_FLASH_SIZE
+extern const mp_obj_property_t __property_getter_start, __property_getter_end, __property_getset_start, __property_getset_end;
+#endif
+
+const mp_obj_t *mp_obj_property_get(mp_obj_t self_in, size_t *n_proxy) {
+    mp_check_self(mp_obj_is_type(self_in, &mp_type_property));
+    mp_obj_property_t *self = MP_OBJ_TO_PTR(self_in);
+    #if MICROPY_PY_OPTIMIZE_PROPERTY_FLASH_SIZE
+    if (self >= &__property_getter_start && self < &__property_getter_end) {
+        *n_proxy = 1;
+    } else if (self >= &__property_getset_start && self < &__property_getset_end) {
+        *n_proxy = 2;
+    } else {
+        *n_proxy = 3;
+    }
+    #else
+    *n_proxy = 3;
+    #endif
+    return self->proxy;
+}
+
+#endif // MICROPY_PY_BUILTINS_PROPERTY