mirror of https://github.com/tc39/test262.git
40 lines
971 B
JavaScript
40 lines
971 B
JavaScript
// Copyright (C) 2015 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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es6id: 9.5.5
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description: >
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Throws a TypeError exception if trap result is not configurable but target
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property descriptor is configurable.
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info: >
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[[GetOwnProperty]] (P)
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...
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22. If resultDesc.[[Configurable]] is false, then
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a. If targetDesc is undefined or targetDesc.[[Configurable]] is true,
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then
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i. Throw a TypeError exception.
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...
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---*/
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var target = {
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bar: 1
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};
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var p = new Proxy(target, {
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getOwnPropertyDescriptor: function(t, prop) {
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var foo = {};
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Object.defineProperty(foo, "bar", {
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configurable: false,
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enumerable: true,
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value: 1
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});
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return Object.getOwnPropertyDescriptor(foo, prop);
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}
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});
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assert.throws(TypeError, function() {
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Object.getOwnPropertyDescriptor(p, "bar");
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});
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