mirror of https://github.com/tc39/test262.git
56 lines
1.3 KiB
JavaScript
56 lines
1.3 KiB
JavaScript
// Copyright (C) 2021 Alexey Shvayka. All rights reserved.
|
|
// This code is governed by the license found in the LICENSE file.
|
|
|
|
/*---
|
|
esid: sec-object.assign
|
|
description: >
|
|
[[Set]] to existing accessor property of sealed `target` is successful.
|
|
info: |
|
|
SetIntegrityLevel ( O, level )
|
|
|
|
[...]
|
|
3. Let status be ? O.[[PreventExtensions]]().
|
|
[...]
|
|
|
|
OrdinaryPreventExtensions ( O )
|
|
|
|
1. Set O.[[Extensible]] to false.
|
|
|
|
Object.assign ( target, ...sources )
|
|
|
|
[...]
|
|
3. For each element nextSource of sources, do
|
|
a. If nextSource is neither undefined nor null, then
|
|
[...]
|
|
iii. For each element nextKey of keys, do
|
|
1. Let desc be ? from.[[GetOwnProperty]](nextKey).
|
|
2. If desc is not undefined and desc.[[Enumerable]] is true, then
|
|
[...]
|
|
b. Perform ? Set(to, nextKey, propValue, true).
|
|
|
|
OrdinarySetWithOwnDescriptor ( O, P, V, Receiver, ownDesc )
|
|
|
|
[...]
|
|
7. Perform ? Call(setter, Receiver, « V »).
|
|
8. Return true.
|
|
---*/
|
|
|
|
var value1 = 1;
|
|
var target1 = Object.seal({
|
|
set foo(val) { value1 = val; },
|
|
});
|
|
|
|
Object.assign(target1, { foo: 2 });
|
|
assert.sameValue(value1, 2);
|
|
|
|
|
|
var sym = Symbol();
|
|
var value2 = 1;
|
|
var target2 = {
|
|
set [sym](val) { value2 = val; },
|
|
};
|
|
|
|
Object.seal(target2);
|
|
Object.assign(target2, { [sym]: 2 });
|
|
assert.sameValue(value2, 2);
|