py: Add 'object' object.

py/obj.h

@@ -315,6 +315,9 @@ mp_obj_t *mp_obj_get_array_fixed_n(mp_obj_t o, machine_int_t n);
 uint mp_get_index(const mp_obj_type_t *type, machine_uint_t len, mp_obj_t index, bool is_slice);
 mp_obj_t mp_obj_len_maybe(mp_obj_t o_in); /* may return NULL */
 
+// object
+extern const mp_obj_type_t mp_type_object;
+
 // none
 extern const mp_obj_type_t none_type;
 

py/objobject.c

+#include <stdlib.h>
+
+#include "nlr.h"
+#include "misc.h"
+#include "mpconfig.h"
+#include "qstr.h"
+#include "obj.h"
+#include "runtime0.h"
+
+typedef struct _mp_obj_object_t {
+    mp_obj_base_t base;
+} mp_obj_object_t;
+
+const mp_obj_type_t mp_type_object;
+
+STATIC mp_obj_t object_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
+    if (n_args != 0 || n_kw != 0) {
+        nlr_jump(mp_obj_new_exception_msg(&mp_type_TypeError, "object takes no arguments"));
+    }
+
+    mp_obj_object_t *o = m_new_obj(mp_obj_object_t);
+    o->base.type = &mp_type_object;
+    return o;
+}
+
+const mp_obj_type_t mp_type_object = {
+    { &mp_type_type },
+    .name = MP_QSTR_object,
+    .make_new = object_make_new,
+};

py/py.mk

@@ -58,6 +58,7 @@ PY_O_BASENAME = \
 	objlist.o \
 	objmap.o \
 	objmodule.o \
+	objobject.o \
 	objnone.o \
 	objnamedtuple.o \
 	objrange.o \

py/qstrdefs.h

@@ -91,6 +91,10 @@ Q(ValueError)
 Q(Warning)
 Q(ZeroDivisionError)
 
+Q(None)
+Q(False)
+Q(True)
+Q(object)
 
 Q(NoneType)
 

py/runtime.c

@@ -104,6 +104,7 @@ STATIC const mp_builtin_elem_t builtin_table[] = {
     { MP_QSTR_int, (mp_obj_t)&int_type },
     { MP_QSTR_list, (mp_obj_t)&list_type },
     { MP_QSTR_map, (mp_obj_t)&map_type },
+    { MP_QSTR_object, (mp_obj_t)&mp_type_object },
     { MP_QSTR_set, (mp_obj_t)&set_type },
     { MP_QSTR_str, (mp_obj_t)&str_type },
     { MP_QSTR_super, (mp_obj_t)&super_type },