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:generator
18 * @tc.desc:test generator
19 * @tc.type: FUNC
20 * @tc.require: issueI5NO8G
21 */
22function* gen(){
23    yield 1;
24    yield 2;
25}
26
27var g = gen();
28g[Symbol.iterator] = function*(){
29    yield 1;
30    yield 2;
31    yield 3;
32};
33for (var i of g){
34    print(i);//1,2,3
35}
36
37function *foo() {
38    yield 1;
39    yield 2;
40}
41
42var p = foo()
43var a = p.next()
44print(a.value, a.done)
45var b = p.next()
46print(b.value, b.done)
47var c = p.next()
48print(c.value, c.done)
49var d = p.next()
50print(d.value, d.done)
51
52function* g1() { yield 1; }
53var iter = g1();
54var gf = iter.__proto__.constructor;
55print(Object.prototype.toString.call(gf));
56
57var GeneratorFunctionPrototype = Object.getPrototypeOf(g1);
58var GeneratorFunction = GeneratorFunctionPrototype.constructor;
59var GeneratorObjectPrototype = GeneratorFunctionPrototype.prototype;
60print(Object.getPrototypeOf(GeneratorFunction));
61var found_property_names = Object.getOwnPropertyNames(GeneratorObjectPrototype);
62found_property_names.sort();
63print(found_property_names);