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// Copyright (C) 2015 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-ownpropertykeys
description: >
The result List must contain the keys of all non-configurable own properties
of the target object.
info: |
[[OwnPropertyKeys]] ( )
...
17. For each key that is an element of targetNonconfigurableKeys, do
a. If key is not an element of uncheckedResultKeys, throw a TypeError
exception.
features: [Proxy]
---*/
var target = {
foo: 1
};
Object.defineProperty(target, "attr", {
configurable: false,
enumerable: true,
value: true
});
var p = new Proxy(target, {
ownKeys: function() {
return ["foo"];
}
});
assert.throws(TypeError, function() {
Object.keys(p);
});
reportCompare(0, 0);
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