mirror of
https://github.com/nodejs/node.git
synced 2025-05-15 11:36:57 +00:00
c5ff019a4e
PR-URL: https://github.com/nodejs/node/pull/37330 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
32 lines
794 B
JavaScript
32 lines
794 B
JavaScript
// Copyright 2019 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
// Flags: --allow-natives-syntax
|
|
|
|
// Test that s->t field representation changes are done in-place.
|
|
(function() {
|
|
function O(x) { this.x = x; }
|
|
|
|
const a = new O(42);
|
|
const b = new O(-8);
|
|
assertTrue(%HaveSameMap(a, b));
|
|
a.x = null;
|
|
assertTrue(%HaveSameMap(a, b));
|
|
b.x = null;
|
|
assertTrue(%HaveSameMap(a, b));
|
|
})();
|
|
|
|
// Test that h->t field representation changes are done in-place.
|
|
(function() {
|
|
function O(x) { this.x = x; }
|
|
|
|
const a = new O(null);
|
|
const b = new O("Hello");
|
|
assertTrue(%HaveSameMap(a, b));
|
|
a.x = 1;
|
|
assertTrue(%HaveSameMap(a, b));
|
|
b.x = 2;
|
|
assertTrue(%HaveSameMap(a, b));
|
|
})();
|