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// Copyright (C) 2019 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-object.keys
description: >
Proxy [[OwnPropertyKeys]] trap does not skip non-enumerable keys when validating invariant:
* The result List must contain the keys of all non-configurable own properties of
the target object.
info: |
Object.keys ( O )
...
2. Let nameList be ? EnumerableOwnPropertyNames(obj, "key").
EnumerableOwnPropertyNames ( O, kind )
...
2. Let ownKeys be ? O.[[OwnPropertyKeys]]().
[[OwnPropertyKeys]] ( )
...
11. Let targetKeys be ? target.[[OwnPropertyKeys]]().
...
15. Let targetNonconfigurableKeys be a new empty List.
16. For each element key of targetKeys, do
a. Let desc be ? target.[[GetOwnProperty]](key).
b. If desc is not undefined and desc.[[Configurable]] is false, then
i. Append key as an element of targetNonconfigurableKeys.
...
18. Let uncheckedResultKeys be a new List which is a copy of trapResult.
19. 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 = {};
Object.defineProperty(target, 'prop', {
value: 1,
writable: true,
enumerable: false,
configurable: false,
});
var proxy = new Proxy(target, {
ownKeys: function() {
return [];
},
});
assert.throws(TypeError, function() {
Object.keys(proxy);
});
reportCompare(0, 0);
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