| // Copyright 2020 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: --harmony-logical-assignment |
| |
| { |
| let x = null; |
| let y = 0; |
| x ??= y ||= 5; |
| |
| assertEquals(x, 5); |
| assertEquals(y, 5); |
| } |
| |
| |
| { |
| let x = null; |
| let y = 4; |
| x ??= y ||= 5; |
| |
| assertEquals(x, 4); |
| assertEquals(y, 4); |
| } |
| |
| { |
| let x = 1; |
| let y = 0; |
| x &&= y ||= 5; |
| |
| assertEquals(x, 5); |
| assertEquals(y, 5); |
| } |
| |
| { |
| let x = 0; |
| let y = 0; |
| x &&= y ||= 5; |
| |
| assertEquals(x, 0); |
| assertEquals(y, 0); |
| } |