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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-set.prototype.forEach
description: >
Set.prototype.forEach ( callbackfn [ , thisArg ] )
...
7. Repeat for each e that is an element of entries, in original insertion order
a. If e is not empty, then
i. Let funcResult be Call(callbackfn, T, «e, e, S»).
ii. ReturnIfAbrupt(funcResult).
...
NOTE:
...
Values that are deleted after the call to forEach begins and before being visited are not visited unless the value is added again before the forEach call completes.
...
---*/
var s = new Set([1, 2, 3]);
var expects = [1, 3, 2];
s.forEach(function(value, entry, set) {
var expect = expects.shift();
// Delete `2` before being visited
if (value === 1) {
set.delete(2);
}
// Re-add `2` before forEach call completes
if (value === 3) {
set.add(2);
}
assert.sameValue(value, expect);
assert.sameValue(entry, expect);
assert.sameValue(set, s);
});
assert.sameValue(expects.length, 0, "The value of `expects.length` is `0`");
reportCompare(0, 0);
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