py/objnamedtuple: Allow to reuse namedtuple basic functionality.

By declaring interface in objnamedtuple.h and introducing a helper
allocation function.

1 files changed, 44 insertions, 0 deletions

diff --git a/py/objnamedtuple.h b/py/objnamedtuple.h
new file mode 100644
index 000000000..d32af35af
--- /dev/null
+++ b/py/objnamedtuple.h
@@ -0,0 +1,44 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2017 Paul Sokolovsky
+ *
+ * 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.
+ */
+#ifndef MICROPY_INCLUDED_PY_OBJNAMEDTUPLE_H
+#define MICROPY_INCLUDED_PY_OBJNAMEDTUPLE_H
+
+#include "py/objtuple.h"
+
+typedef struct _mp_obj_namedtuple_type_t {
+    mp_obj_type_t base;
+    size_t n_fields;
+    qstr fields[];
+} mp_obj_namedtuple_type_t;
+
+typedef struct _mp_obj_namedtuple_t {
+    mp_obj_tuple_t tuple;
+} mp_obj_namedtuple_t;
+
+size_t mp_obj_namedtuple_find_field(const mp_obj_namedtuple_type_t *type, qstr name);
+mp_obj_namedtuple_type_t *mp_obj_new_namedtuple_base(size_t n_fields, mp_obj_t *fields);
+
+#endif // MICROPY_INCLUDED_PY_OBJNAMEDTUPLE_H