mirror of
https://github.com/tc39/test262.git
synced 2025-10-31 11:44:31 +01:00
39 lines
1.0 KiB
JavaScript
39 lines
1.0 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
/*---
|
|
esid: sec-proxy-object-internal-methods-and-internal-slots-defineownproperty-p-desc
|
|
description: >
|
|
Throw a TypeError exception if Desc is not configurable and target property
|
|
descriptor is configurable and trap result is true (honoring the realm of
|
|
the current execution context).
|
|
info: |
|
|
[[DefineOwnProperty]] (P, Desc)
|
|
|
|
...
|
|
20. Else targetDesc is not undefined,
|
|
b. If settingConfigFalse is true and targetDesc.[[Configurable]] is
|
|
true, throw a TypeError exception.
|
|
...
|
|
features: [cross-realm, Proxy]
|
|
---*/
|
|
|
|
var OProxy = $262.createRealm().global.Proxy;
|
|
var target = Object.create(null);
|
|
var p = new OProxy(target, {
|
|
defineProperty: function() {
|
|
return true;
|
|
}
|
|
});
|
|
|
|
Object.defineProperty(target, 'prop', {
|
|
value: 1,
|
|
configurable: true
|
|
});
|
|
|
|
assert.throws(TypeError, function() {
|
|
Object.defineProperty(p, 'prop', {
|
|
value: 1,
|
|
configurable: false
|
|
});
|
|
});
|