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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.
/*---
es6id: 23.1.3.1
description: >
The existing [[MapData]] List is preserved.
info: |
The existing [[MapData]] List is preserved because there may be existing
MapIterator objects that are suspended midway through iterating over that
List.
Map.prototype.clear ( )
...
4. Let entries be the List that is the value of M’s [[MapData]] internal slot.
5. Repeat for each Record {[[key]], [[value]]} p that is an element of
entries,
a. Set p.[[key]] to empty.
b. Set p.[[value]] to empty.
6. Return undefined.
---*/
var m = new Map([[1,1], [2,2], [3,3]]);
var e = m.entries();
e.next();
m.clear();
var n = e.next();
assert.sameValue(n.value, undefined);
assert.sameValue(n.done, true);
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