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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: >
If target is extensible, return the non-falsy trap result if it contains all
of target's non-configurable keys.
info: |
[[OwnPropertyKeys]] ( )
...
18. If extensibleTarget is true, return trapResult.
features: [Proxy]
---*/
var target = {};
Object.defineProperty(target, "foo", {
configurable: false,
enumerable: true,
value: true
});
var p = new Proxy(target, {
ownKeys: function() {
return ["foo", "bar"];
}
});
var keys = Object.getOwnPropertyNames(p);
assert.sameValue(keys[0], "foo");
assert.sameValue(keys[1], "bar");
assert.sameValue(keys.length, 2);
reportCompare(0, 0);
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