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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-weakset-iterable
description: >
If the iterable argument is empty, return new Weakset object.
info: |
23.4.1.1 WeakSet ( [ iterable ] )
...
9. Repeat
a. Let next be IteratorStep(iter).
b. ReturnIfAbrupt(next).
c. If next is false, return set.
...
---*/
var counter = 0;
var add = WeakSet.prototype.add;
WeakSet.prototype.add = function(value) {
counter++;
return add.call(this, value);
};
var set = new WeakSet([]);
assert.sameValue(Object.getPrototypeOf(set), WeakSet.prototype);
assert(set instanceof WeakSet);
assert.sameValue(
counter, 0,
'empty iterable does not call WeakSet.prototype.add'
);
reportCompare(0, 0);
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