1 | var __assign = (this && this.__assign) || function () {
|
2 | __assign = Object.assign || function(t) {
|
3 | for (var s, i = 1, n = arguments.length; i < n; i++) {
|
4 | s = arguments[i];
|
5 | for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
|
6 | t[p] = s[p];
|
7 | }
|
8 | return t;
|
9 | };
|
10 | return __assign.apply(this, arguments);
|
11 | };
|
12 | var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
|
13 | return new (P || (P = Promise))(function (resolve, reject) {
|
14 | function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
|
15 | function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
|
16 | function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
|
17 | step((generator = generator.apply(thisArg, _arguments || [])).next());
|
18 | });
|
19 | };
|
20 | var __generator = (this && this.__generator) || function (thisArg, body) {
|
21 | var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
|
22 | return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
|
23 | function verb(n) { return function (v) { return step([n, v]); }; }
|
24 | function step(op) {
|
25 | if (f) throw new TypeError("Generator is already executing.");
|
26 | while (_) try {
|
27 | if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
|
28 | if (y = 0, t) op = [op[0] & 2, t.value];
|
29 | switch (op[0]) {
|
30 | case 0: case 1: t = op; break;
|
31 | case 4: _.label++; return { value: op[1], done: false };
|
32 | case 5: _.label++; y = op[1]; op = [0]; continue;
|
33 | case 7: op = _.ops.pop(); _.trys.pop(); continue;
|
34 | default:
|
35 | if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
|
36 | if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
|
37 | if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
|
38 | if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
|
39 | if (t[2]) _.ops.pop();
|
40 | _.trys.pop(); continue;
|
41 | }
|
42 | op = body.call(thisArg, _);
|
43 | } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
|
44 | if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
|
45 | }
|
46 | };
|
47 | Object.defineProperty(exports, "__esModule", { value: true });
|
48 | var iterall_1 = require("iterall");
|
49 | function observableToAsyncIterable(observable) {
|
50 | var _a;
|
51 | var pullQueue = [];
|
52 | var pushQueue = [];
|
53 | var listening = true;
|
54 | var pushValue = function (_a) {
|
55 | var data = _a.data;
|
56 | if (pullQueue.length !== 0) {
|
57 | pullQueue.shift()({ value: data, done: false });
|
58 | }
|
59 | else {
|
60 | pushQueue.push({ value: data });
|
61 | }
|
62 | };
|
63 | var pushError = function (error) {
|
64 | if (pullQueue.length !== 0) {
|
65 | pullQueue.shift()({ value: { errors: [error] }, done: false });
|
66 | }
|
67 | else {
|
68 | pushQueue.push({ value: { errors: [error] } });
|
69 | }
|
70 | };
|
71 | var pullValue = function () {
|
72 | return new Promise(function (resolve) {
|
73 | if (pushQueue.length !== 0) {
|
74 | var element = pushQueue.shift();
|
75 |
|
76 | resolve(__assign({}, element, { done: false }));
|
77 | }
|
78 | else {
|
79 | pullQueue.push(resolve);
|
80 | }
|
81 | });
|
82 | };
|
83 | var subscription = observable.subscribe({
|
84 | next: function (value) {
|
85 | pushValue(value);
|
86 | },
|
87 | error: function (err) {
|
88 | pushError(err);
|
89 | },
|
90 | });
|
91 | var emptyQueue = function () {
|
92 | if (listening) {
|
93 | listening = false;
|
94 | subscription.unsubscribe();
|
95 | pullQueue.forEach(function (resolve) { return resolve({ value: undefined, done: true }); });
|
96 | pullQueue.length = 0;
|
97 | pushQueue.length = 0;
|
98 | }
|
99 | };
|
100 | return _a = {
|
101 | next: function () {
|
102 | return __awaiter(this, void 0, void 0, function () {
|
103 | return __generator(this, function (_a) {
|
104 | return [2 , listening ? pullValue() : this.return()];
|
105 | });
|
106 | });
|
107 | },
|
108 | return: function () {
|
109 | emptyQueue();
|
110 | return Promise.resolve({ value: undefined, done: true });
|
111 | },
|
112 | throw: function (error) {
|
113 | emptyQueue();
|
114 | return Promise.reject(error);
|
115 | }
|
116 | },
|
117 | _a[iterall_1.$$asyncIterator] = function () {
|
118 | return this;
|
119 | },
|
120 | _a;
|
121 | }
|
122 | exports.observableToAsyncIterable = observableToAsyncIterable;
|
123 |
|
\ | No newline at end of file |