v8/test/mjsunit/harmony/proxies-revocable.js

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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-proxies --harmony-reflect
traps = [
"getPrototypeOf", "setPrototypeOf", "isExtensible", "preventExtensions",
"getOwnPropertyDescriptor", "has", "get", "set", "deleteProperty",
"defineProperty", "ownKeys", "apply", "construct"
];
// TODO(neis): Fix enumerate.
var {proxy, revoke} = Proxy.revocable({}, {});
assertEquals(0, revoke.length);
assertEquals(undefined, revoke());
for (var trap of traps) {
assertThrows(() => Reflect[trap](proxy), TypeError);
}
assertEquals(undefined, revoke());
for (var trap of traps) {
assertThrows(() => Reflect[trap](proxy), TypeError);
}