py/objstr: Add hex/fromhex to bytes/memoryview/bytearray.

These were added in Python 3.5.

Enabled via MICROPY_PY_BUILTINS_BYTES_HEX, and enabled by default for all
ports that currently have ubinascii.

Rework ubinascii to use the implementation of these methods.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/py/objarray.c b/py/objarray.c
index 11bd7bb15..ecaffeb6a 100644
--- a/py/objarray.c
+++ b/py/objarray.c
@@ -245,6 +245,12 @@ STATIC void memoryview_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {
         mp_obj_array_t *self = MP_OBJ_TO_PTR(self_in);
         dest[0] = MP_OBJ_NEW_SMALL_INT(mp_binary_get_size('@', self->typecode & TYPECODE_MASK, NULL));
     }
+    #if MICROPY_PY_BUILTINS_BYTES_HEX
+    else {
+        // Need to forward to locals dict.
+        dest[1] = MP_OBJ_SENTINEL;
+    }
+    #endif
 }
 #endif
 
@@ -607,6 +613,9 @@ const mp_obj_type_t mp_type_memoryview = {
     #if MICROPY_PY_BUILTINS_MEMORYVIEW_ITEMSIZE
     .attr = memoryview_attr,
     #endif
+    #if MICROPY_PY_BUILTINS_BYTES_HEX
+    .locals_dict = (mp_obj_dict_t *)&mp_obj_memoryview_locals_dict,
+    #endif
     .subscr = array_subscr,
     .buffer_p = { .get_buffer = array_get_buffer },
 };