File: symbol-disallowed-as-weakset-key.js

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// Copyright (C) 2013 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 23.4.3.1_S2
esid: sec-weakset.prototype.add
description: >
  Symbol may not be used as a WeakSet entry
features: [Symbol, WeakSet]
---*/
var weakset = new WeakSet();
var sym = Symbol();

assert.throws(TypeError, function() {
  weakset.add(sym);
});