py: Convert mp_uint_t to size_t for tuple/list accessors.

This patch changes mp_uint_t to size_t for the len argument of the
following public facing C functions:

mp_obj_tuple_get
mp_obj_list_get
mp_obj_get_array

These functions take a pointer to the len argument (to be filled in by the
function) and callers of these functions should update their code so the
type of len is changed to size_t.  For ports that don't use nan-boxing
there should be no change in generate code because the size of the type
remains the same (word sized), and in a lot of cases there won't even be a
compiler warning if the type remains as mp_uint_t.

The reason for this change is to standardise on the use of size_t for
variables that count memory (or memory related) sizes/lengths.  It helps
builds that use nan-boxing.

1 files changed, 3 insertions, 3 deletions

diff --git a/py/runtime.c b/py/runtime.c
index 9f6c654ab..73886e10f 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -670,7 +670,7 @@ void mp_call_prepare_args_n_kw_var(bool have_self, size_t n_args_n_kw, const mp_
         // optimise the case of a tuple and list
 
         // get the items
-        mp_uint_t len;
+        size_t len;
         mp_obj_t *items;
         mp_obj_get_array(pos_seq, &len, &items);
 
@@ -799,7 +799,7 @@ mp_obj_t mp_call_method_n_kw_var(bool have_self, size_t n_args_n_kw, const mp_ob
 
 // unpacked items are stored in reverse order into the array pointed to by items
 void mp_unpack_sequence(mp_obj_t seq_in, size_t num, mp_obj_t *items) {
-    mp_uint_t seq_len;
+    size_t seq_len;
     if (MP_OBJ_IS_TYPE(seq_in, &mp_type_tuple) || MP_OBJ_IS_TYPE(seq_in, &mp_type_list)) {
         mp_obj_t *seq_items;
         mp_obj_get_array(seq_in, &seq_len, &seq_items);
@@ -849,7 +849,7 @@ void mp_unpack_ex(mp_obj_t seq_in, size_t num_in, mp_obj_t *items) {
     size_t num_left = num_in & 0xff;
     size_t num_right = (num_in >> 8) & 0xff;
     DEBUG_OP_printf("unpack ex " UINT_FMT " " UINT_FMT "\n", num_left, num_right);
-    mp_uint_t seq_len;
+    size_t seq_len;
     if (MP_OBJ_IS_TYPE(seq_in, &mp_type_tuple) || MP_OBJ_IS_TYPE(seq_in, &mp_type_list)) {
         mp_obj_t *seq_items;
         mp_obj_get_array(seq_in, &seq_len, &seq_items);