mirror of https://github.com/tc39/test262.git
27 lines
784 B
JavaScript
27 lines
784 B
JavaScript
// Copyright (C) 2015 the V8 project authors. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
/*---
|
|
es6id: 19.1.2.1
|
|
description: Invoked with a source whose own property keys cannot be retrieved
|
|
info: |
|
|
[...]
|
|
5. For each element nextSource of sources, in ascending index order,
|
|
a. If nextSource is undefined or null, let keys be an empty List.
|
|
b. Else,
|
|
i. Let from be ToObject(nextSource).
|
|
ii. ReturnIfAbrupt(from).
|
|
iii. Let keys be from.[[OwnPropertyKeys]]().
|
|
iv. ReturnIfAbrupt(keys).
|
|
features: [Proxy]
|
|
---*/
|
|
|
|
var source = new Proxy({}, {
|
|
ownKeys: function() {
|
|
throw new Test262Error();
|
|
}
|
|
});
|
|
|
|
assert.throws(Test262Error, function() {
|
|
Object.assign({}, source);
|
|
});
|