Fix propery name duplication check in case of empty collection (#4098)

Fixes: #4093 JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.usz@partner.samsung.com
2020-08-03 17:27:50 +02:00
parent cfd69d3b70
commit e9b794f629
3 changed files with 30 additions and 8 deletions
@@ -197,6 +197,11 @@ ecma_collection_append (ecma_collection_t *collection_p, /**< value collection *
 bool
 ecma_collection_check_duplicated_entries (ecma_collection_t *collection_p) /**< prop name collection */
 {
+  if (collection_p->item_count == 0)
+  {
+    return false;
+  }
+
  ecma_value_t *buffer_p = collection_p->buffer_p;

  for (uint32_t i = 0; i < collection_p->item_count - 1; i++)