source: trip-planner-front/node_modules/@babel/runtime/helpers/AsyncGenerator.js@ 6a3a178

Last change on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
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1var AwaitValue = require("./AwaitValue.js");
2
3function AsyncGenerator(gen) {
4 var front, back;
5
6 function send(key, arg) {
7 return new Promise(function (resolve, reject) {
8 var request = {
9 key: key,
10 arg: arg,
11 resolve: resolve,
12 reject: reject,
13 next: null
14 };
15
16 if (back) {
17 back = back.next = request;
18 } else {
19 front = back = request;
20 resume(key, arg);
21 }
22 });
23 }
24
25 function resume(key, arg) {
26 try {
27 var result = gen[key](arg);
28 var value = result.value;
29 var wrappedAwait = value instanceof AwaitValue;
30 Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) {
31 if (wrappedAwait) {
32 resume(key === "return" ? "return" : "next", arg);
33 return;
34 }
35
36 settle(result.done ? "return" : "normal", arg);
37 }, function (err) {
38 resume("throw", err);
39 });
40 } catch (err) {
41 settle("throw", err);
42 }
43 }
44
45 function settle(type, value) {
46 switch (type) {
47 case "return":
48 front.resolve({
49 value: value,
50 done: true
51 });
52 break;
53
54 case "throw":
55 front.reject(value);
56 break;
57
58 default:
59 front.resolve({
60 value: value,
61 done: false
62 });
63 break;
64 }
65
66 front = front.next;
67
68 if (front) {
69 resume(front.key, front.arg);
70 } else {
71 back = null;
72 }
73 }
74
75 this._invoke = send;
76
77 if (typeof gen["return"] !== "function") {
78 this["return"] = undefined;
79 }
80}
81
82AsyncGenerator.prototype[typeof Symbol === "function" && Symbol.asyncIterator || "@@asyncIterator"] = function () {
83 return this;
84};
85
86AsyncGenerator.prototype.next = function (arg) {
87 return this._invoke("next", arg);
88};
89
90AsyncGenerator.prototype["throw"] = function (arg) {
91 return this._invoke("throw", arg);
92};
93
94AsyncGenerator.prototype["return"] = function (arg) {
95 return this._invoke("return", arg);
96};
97
98module.exports = AsyncGenerator;
99module.exports["default"] = module.exports, module.exports.__esModule = true;
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