1// Copyright 2013 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28function s(v) {
29  v.x = 1;
30}
31
32function s_strict(v) {
33  "use strict";
34  v.x = 1;
35}
36
37function c(p) {
38  return {__proto__: p};
39}
40
41var p = {};
42
43var o1 = c(p);
44var o2 = c(p);
45var o3 = c(p);
46var o4 = c(p);
47
48// Make p go slow.
49// Do this after using p as prototype, since using an object as prototype kicks
50// it back into fast mode.
51p.y = 1;
52delete p.y;
53p.x = 5;
54
55// Initialize the store IC.
56s(o1);
57s(o2);
58s_strict(o1);
59s_strict(o2);
60
61// Make x non-writable.
62Object.defineProperty(p, "x", { writable: false });
63
64// Verify that direct setting fails.
65o3.x = 20;
66assertEquals(5, o3.x);
67
68// Verify that setting through the IC fails.
69s(o4);
70assertEquals(5, o4.x);
71assertThrows("s_strict(o4);", TypeError);
72