| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 13.6.4.13 |
| description: > |
| If an iterator's `return` method returns a non-Object value, a TypeError |
| should be thrown. |
| features: [Symbol.iterator] |
| ---*/ |
| |
| var iterable = {}; |
| var iterationCount = 0; |
| |
| iterable[Symbol.iterator] = function() { |
| return { |
| next: function() { |
| return { done: false, value: null }; |
| }, |
| return: function() { |
| return 0; |
| } |
| }; |
| }; |
| |
| assert.throws(TypeError, function() { |
| for (var x of iterable) { |
| iterationCount += 1; |
| break; |
| } |
| }); |
| |
| assert.sameValue(iterationCount, 1, 'The loop body is evaluated'); |