Add check Proxy object [[SetPrototypeOf]] (#4631)

JerryScript-DCO-1.0-Signed-off-by: bence gabor kis kisbg@inf.u-szeged.hu
2021-04-26 09:21:29 +02:00
parent b4bea25f13
commit ce24edae24
2 changed files with 7 additions and 1 deletions
@@ -361,6 +361,7 @@ ecma_proxy_object_get_prototype_of (ecma_object_t *obj_p) /**< proxy object */
 *
 * See also:
 *          ECMAScript v6, 9.5.2
+ *          ECMAScript v11: 9.5.2
 *
 * Note: Returned value is always a simple value so freeing it is unnecessary.
 *
@@ -422,6 +423,12 @@ ecma_proxy_object_set_prototype_of (ecma_object_t *obj_p, /**< proxy object */

  ecma_free_value (trap_result);

+  /* ES11: 9 */
+  if (!boolean_trap_result)
+  {
+    return ecma_make_boolean_value (false);
+  }
+
  if (obj_p->u2.prototype_cp & JERRY_PROXY_SKIP_RESULT_VALIDATION)
  {
    return ecma_make_boolean_value (boolean_trap_result);