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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-map.prototype.forEach
description: >
New keys are visited if created during forEach execution.
info: |
Map.prototype.forEach ( callbackfn [ , thisArg ] )
...
5. If thisArg was supplied, let T be thisArg; else let T be undefined.
6. Let entries be the List that is the value of M’s [[MapData]] internal slot.
7. Repeat for each Record {[[key]], [[value]]} e that is an element of
entries, in original key insertion order
a. If e.[[key]] is not empty, then
i. Let funcResult be Call(callbackfn, T, «e.[[value]], e.[[key]], M»).
ii. ReturnIfAbrupt(funcResult).
...
---*/
var map = new Map();
map.set('foo', 0);
map.set('bar', 1);
var count = 0;
var results = [];
map.forEach(function(value, key) {
if (count === 0) {
map.set('baz', 2);
}
results.push({
value: value,
key: key
});
count++;
});
assert.sameValue(count, 3);
assert.sameValue(map.size, 3);
assert.sameValue(results[0].key, 'foo');
assert.sameValue(results[0].value, 0);
assert.sameValue(results[1].key, 'bar');
assert.sameValue(results[1].value, 1);
assert.sameValue(results[2].key, 'baz');
assert.sameValue(results[2].value, 2);
reportCompare(0, 0);
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