// 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.');