mirror of https://github.com/tc39/test262.git
33 lines
743 B
JavaScript
33 lines
743 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: 9.5.12
|
|
description: >
|
|
If target is not extensible, the result must contain all the keys of the own
|
|
properties of the target object.
|
|
info: >
|
|
[[OwnPropertyKeys]] ( )
|
|
|
|
...
|
|
23. Repeat, for each key that is an element of targetConfigurableKeys,
|
|
a. If key is not an element of uncheckedResultKeys, throw a TypeError
|
|
exception.
|
|
---*/
|
|
|
|
var target = {
|
|
foo: 1,
|
|
bar: 2
|
|
};
|
|
|
|
var p = new Proxy(target, {
|
|
ownKeys: function() {
|
|
return ["foo"];
|
|
}
|
|
});
|
|
|
|
Object.preventExtensions(target);
|
|
|
|
assert.throws(TypeError, function() {
|
|
Object.keys(p);
|
|
});
|