Fix index handling in ecma_op_advance_string_index (#3406)

Fixes #3389 JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu
2019-12-04 11:14:25 +01:00
parent bfc495f0cb
commit 4443c88bf4
1 changed files with 4 additions and 1 deletions
@@ -2816,7 +2816,10 @@ ecma_op_advance_string_index (ecma_string_t *str_p, /**< input string */
                              bool is_unicode) /**< true - if regexp object's "unicode" flag is set
                                                    false - otherwise */
 {
-  JERRY_ASSERT (index < UINT32_MAX - 1);
+  if (index >= UINT32_MAX - 1)
+  {
+    return UINT32_MAX;
+  }

  uint32_t next_index = index + 1;