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40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-proxy-object-internal-methods-and-internal-slots-defineownproperty-p-desc
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es6id: 9.5.6
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description: >
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Throw a TypeError exception if Desc is not configurable and target property
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descriptor is configurable and trap result is true (honoring the realm of
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the current execution context).
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info: |
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[[DefineOwnProperty]] (P, Desc)
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...
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20. Else targetDesc is not undefined,
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b. If settingConfigFalse is true and targetDesc.[[Configurable]] is
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true, throw a TypeError exception.
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...
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features: [cross-realm]
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---*/
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var OProxy = $262.createRealm().global.Proxy;
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var target = Object.create(null);
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var p = new OProxy(target, {
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defineProperty: function() {
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return true;
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}
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});
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Object.defineProperty(target, 'prop', {
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value: 1,
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configurable: true
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});
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assert.throws(TypeError, function() {
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Object.defineProperty(p, 'prop', {
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value: 1,
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configurable: false
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});
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});
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