summaryrefslogtreecommitdiffstats
path: root/js/src/tests/test262/built-ins/Proxy/defineProperty/targetdesc-undefined-target-is-not-extensible.js
blob: dedafb6ba6c0042205eccd06123112a012cc3acd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.5.6
description: >
    Throw a TypeError exception if Desc is not configurable and target is not
    extensible, and trap result is true.
info: |
    [[DefineOwnProperty]] (P, Desc)

    ...
    19. If targetDesc is undefined, then
        a. If extensibleTarget is false, throw a TypeError exception.
    ...
features: [Proxy]
---*/

var target = {};
var p = new Proxy(target, {
  defineProperty: function(t, prop, desc) {
    return true;
  }
});

Object.preventExtensions(target);

assert.throws(TypeError, function() {
  Object.defineProperty(p, "foo", {});
});

reportCompare(0, 0);