1/*
2 * Copyright (c) 2021 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
16/*
17 * @tc.name:async
18 * @tc.desc:test async function
19 * @tc.type: FUNC
20 * @tc.require: issueI5NO8G
21 */
22async function foo() {
23    var a = await 1
24    print(a)
25}
26
27var s = foo()
28var arrow = () => {}
29var async_arrow = async () => {}
30
31print(foo.name)
32print(foo.call != undefined)
33print(foo.__proto__.constructor.name);
34print(foo.__proto__.__proto__.constructor.name);
35print(foo.__proto__.__proto__.__proto__.constructor.name);
36print(foo.length)
37print(arrow.name)
38print(async_arrow.name)
39
40s.then(msg=>{
41    print(msg)
42})
43
44// should return Promise
45async function testAsync() {
46    throw new Error("hello world!!!");
47}
48var a = testAsync();
49print(a instanceof Promise);
50a.then(
51    function (result) {
52        print("testAsync success!!!");
53    },
54    function (result) {
55        print("testAsync failed: " + result);
56    }
57)
58print("main over");
59
60let obj = {
61    async *foo() {
62        yield await Promise.resolve('a');
63        yield await Promise.resolve('b');
64        yield await Promise.resolve('c');
65    }
66}
67let str = '';
68async function generate() {
69    for await (const val of obj.foo()) {
70        str = str + val;
71    }
72    print(str);
73}
74generate();
75
76
77class C0 {
78    constructor(a2, a3, a4) {
79        async function* f5(a6, a7, a8, a9) {
80        }
81        f5(this, a4, a2, C0).next();
82        new C0();
83    }
84}
85try {
86    new C0(C0, C0, C0);
87} catch (e) {
88    print(e);
89}