From afaaf535e6cfaf599432b13a2fbe9373e6a2c4b8 Mon Sep 17 00:00:00 2001
From: Paul Sokolovsky <pfalcon@users.sourceforge.net>
Date: Sun, 25 May 2014 01:39:27 +0300
Subject: objslice: Support arbitrary objects start, stop, and step.

Older int-only encoding is not expressive enough to support arbitrary slice
assignment operations.
---
 py/objstr.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'py/objstr.c')

diff --git a/py/objstr.c b/py/objstr.c
index 4ec1034e1..67de2ce80 100644
--- a/py/objstr.c
+++ b/py/objstr.c
@@ -355,6 +355,9 @@ STATIC mp_obj_t str_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
             if (!mp_seq_get_fast_slice_indexes(self_len, index, &start, &stop)) {
                 assert(0);
             }
+            if (start >= stop) {
+                return MP_OBJ_NEW_QSTR(MP_QSTR_);
+            }
             return str_new(type, self_data + start, stop - start);
         }
 #endif
-- 
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