mirror of https://github.com/tc39/test262.git
39 lines
1011 B
JavaScript
39 lines
1011 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: 9.5.9
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description: >
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[[Set]] ( P, V, Receiver)
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Throws a TypeError when target property is not configurable neither writable
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and its value is not strictly equal to V.
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info: >
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14. If targetDesc is not undefined, then
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a. If IsDataDescriptor(targetDesc) and targetDesc.[[Configurable]] is
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false and targetDesc.[[Writable]] is false, then
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i. If SameValue(V, targetDesc.[[Value]]) is false, throw a TypeError
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exception.
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---*/
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var target = {};
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var handler = {
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set: function(t, prop, value, receiver) {
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return true;
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}
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};
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var p = new Proxy(target, handler);
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Object.defineProperty(target, 'attr', {
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configurable: false,
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writable: false,
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value: 'foo'
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});
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assert.throws(TypeError, function() {
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p.attr = 'bar';
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});
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assert.throws(TypeError, function() {
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p['attr'] = 'bar';
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});
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