| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| description: Map entry removal and re-insertion during traversal using for..of |
| info: | |
| Entries removed from a Map instance during traversal should be visited if |
| they are re-inserted prior to iterator exhaustion. |
| es6id: 13.6.4 |
| features: [Map] |
| ---*/ |
| |
| var map = new Map(); |
| var iterationCount = 0; |
| |
| var first = [0, 'a']; |
| var second = [1, 'b']; |
| |
| map.set(0, 'a'); |
| map.set(1, 'b'); |
| |
| for (var x of map) { |
| assert.sameValue(x[0], first[0]); |
| assert.sameValue(x[1], first[1]); |
| |
| first = second; |
| second = null; |
| |
| if (first !== null) { |
| map.delete(1); |
| map.set(1, 'b'); |
| } |
| |
| iterationCount += 1; |
| } |
| |
| assert.sameValue(iterationCount, 2); |