py: Change module globals from mp_map_t* to mp_obj_dict_t*.

Towards addressing issue #424.

Had a small increase to ROM usage (order 60 bytes).

1 files changed, 10 insertions, 7 deletions

diff --git a/py/modio.c b/py/modio.c
index ced398358..ac5c7df9d 100644
--- a/py/modio.c
+++ b/py/modio.c
@@ -13,18 +13,21 @@ STATIC const mp_map_elem_t mp_module_io_globals_table[] = {
     { MP_OBJ_NEW_QSTR(MP_QSTR_open), (mp_obj_t)&mp_builtin_open_obj },
 };
 
-STATIC const mp_map_t mp_module_io_globals = {
-    .all_keys_are_qstrs = 1,
-    .table_is_fixed_array = 1,
-    .used = sizeof(mp_module_io_globals_table) / sizeof(mp_map_elem_t),
-    .alloc = sizeof(mp_module_io_globals_table) / sizeof(mp_map_elem_t),
-    .table = (mp_map_elem_t*)mp_module_io_globals_table,
+STATIC const mp_obj_dict_t mp_module_io_globals = {
+    .base = {&mp_type_dict},
+    .map = {
+        .all_keys_are_qstrs = 1,
+        .table_is_fixed_array = 1,
+        .used = sizeof(mp_module_io_globals_table) / sizeof(mp_map_elem_t),
+        .alloc = sizeof(mp_module_io_globals_table) / sizeof(mp_map_elem_t),
+        .table = (mp_map_elem_t*)mp_module_io_globals_table,
+    },
 };
 
 const mp_obj_module_t mp_module_io = {
     .base = { &mp_type_module },
     .name = MP_QSTR_io,
-    .globals = (mp_map_t*)&mp_module_io_globals,
+    .globals = (mp_obj_dict_t*)&mp_module_io_globals,
 };
 
 #endif