Source code
Revision control
Copy as Markdown
Other Tools
// 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');
reportCompare(0, 0);