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1// Copyright 2015 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Flags: --strong-mode --allow-natives-syntax
6
7// TODO(conradw): Track implementation of strong bit for other objects, add
8// tests.
9
10function getSloppyObjects() {
11  return [(function(){}), ({})];
12}
13
14function getStrictObjects() {
15  "use strict";
16  return [(function(){}), ({})];
17}
18
19function getStrongObjects() {
20  "use strong";
21  // Strong functions can't have properties added to them.
22  return [{}];
23}
24
25(function testStrongObjectFreezePropValid() {
26  "use strict";
27  let strongObjects = getStrongObjects();
28
29  for (let o of strongObjects) {
30    Object.defineProperty(o, "foo", { configurable: true, writable: true });
31    assertDoesNotThrow(
32      function() {
33        "use strong";
34        Object.defineProperty(o, "foo", {configurable: true, writable: false });
35      });
36  }
37})();
38
39(function testStrongObjectFreezePropInvalid() {
40  "use strict";
41  let sloppyObjects = getSloppyObjects();
42  let strictObjects = getStrictObjects();
43  let strongObjects = getStrongObjects();
44  let weakObjects = sloppyObjects.concat(strictObjects);
45
46  for (let o of weakObjects) {
47    Object.defineProperty(o, "foo", { writable: true });
48    assertDoesNotThrow(
49      function() {
50        "use strong";
51        Object.defineProperty(o, "foo", { writable: false });
52      });
53  }
54  for (let o of strongObjects) {
55    function defProp(o) {
56      Object.defineProperty(o, "foo", { writable: false });
57    }
58    function defProps(o) {
59      Object.defineProperties(o, { "foo": { writable: false } });
60    }
61    function freezeProp(o) {
62      Object.freeze(o);
63    }
64    Object.defineProperty(o, "foo", { writable: true });
65    for (let func of [defProp, defProps, freezeProp]) {
66      assertThrows(function(){func(o)}, TypeError);
67      assertThrows(function(){func(o)}, TypeError);
68      assertThrows(function(){func(o)}, TypeError);
69      %OptimizeFunctionOnNextCall(func);
70      assertThrows(function(){func(o)}, TypeError);
71      %DeoptimizeFunction(func);
72      assertThrows(function(){func(o)}, TypeError);
73    }
74  }
75})();
76