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1/*
2 * Copyright (c) 2021-2025 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16class A{}
17
18function main(): void {
19  ClassEquality();
20  NullEquality();
21  ArrayEquality();
22}
23
24function ClassEquality(): void {
25    let a : A = new A();
26    let b = a;
27    assertTrue(a === b)
28    let c : A = new A();
29    assertTrue(a !== c)
30}
31
32
33function NullEquality(): void {
34    let a : A | null = null;
35    let b = a;
36    assertTrue(a === b)
37    let c : A | null = null;
38    assertTrue(c === null)
39    assertTrue(null === null)
40}
41
42
43function ArrayEquality(): void {
44    let a : int[] = [1, 2, 3];
45    let b = a;
46    assertTrue(a === b)
47    let c : int[] = [1, 2, 3];
48    assertTrue(a !== c)
49}
50
51function NumericEquality(): void {
52    let a : Int = 1;
53    let b = a;
54    assertTrue(a === b)
55    let c : Int = 1;
56    assertTrue(a !== c)
57    let d : Double = 1.0;
58    assertTrue(a !== c)
59}
60