test262/test/language/statements/for-of/head-expr-obj-iterator-method.js
Mike Pennisi 3bf5652774 Improve for..of control flow tests
- Expand ambiguous assertion messages and assert execution paths more
  finely.
- Improve variable names in `for..of` tests
  While the object created by a GeneratorFunction may be considered an
  "iterable", it is being used as an iterator in these tests. Naming the
  variable according to the way it is used improves the readability of
  the test body.
- Add 'features' attribute to test frontmatter
- Move tests
- Introduce additional `for..of` control flow tests
2015-04-21 12:55:27 -04:00

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JavaScript

// Copyright (C) 2013 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 13.6.4.12 S8.b
description: >
The value of the expression in a for-of statement's head must have an
`@@iterator` method.
---*/
var x;
assert.throws(TypeError, function() {
for (x of {}) {}
});