| // 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 S5.g |
| description: > |
| If `nextValue` is an abrupt completion as per IteratorValue (ES6 7.4.4), |
| return the completion. |
| info: | |
| [...] |
| 5. Repeat |
| a. Let nextResult be ? IteratorStep(iterator). |
| b. If nextResult is false, return NormalCompletion(V). |
| c. Let nextValue be ? IteratorValue(nextResult). |
| features: [Symbol.iterator] |
| ---*/ |
| |
| var iterable = {}; |
| var iterationCount = 0; |
| var returnCount = 0; |
| |
| iterable[Symbol.iterator] = function() { |
| return { |
| next: function() { |
| return { |
| done: false, |
| get value() { |
| throw new Test262Error(); |
| } |
| }; |
| }, |
| return: function() { |
| returnCount += 1; |
| return {}; |
| } |
| }; |
| }; |
| |
| assert.throws(Test262Error, function() { |
| for (var x of iterable) { |
| iterationCount += 1; |
| } |
| }); |
| |
| assert.sameValue(iterationCount, 0, 'The loop body is not evaluated'); |
| assert.sameValue(returnCount, 0, 'Iterator is not closed.'); |