1 | "use strict";
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.maybeAsync = maybeAsync;
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7 | exports.forwardAsync = forwardAsync;
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8 | exports.isThenable = isThenable;
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9 | exports.waitFor = exports.onFirstPause = exports.isAsync = void 0;
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10 |
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11 | function _gensync() {
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12 | const data = require("gensync");
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13 |
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14 | _gensync = function () {
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15 | return data;
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16 | };
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17 |
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18 | return data;
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19 | }
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20 |
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21 | const id = x => x;
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22 |
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23 | const runGenerator = _gensync()(function* (item) {
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24 | return yield* item;
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25 | });
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26 |
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27 | const isAsync = _gensync()({
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28 | sync: () => false,
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29 | errback: cb => cb(null, true)
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30 | });
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31 |
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32 | exports.isAsync = isAsync;
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33 |
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34 | function maybeAsync(fn, message) {
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35 | return _gensync()({
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36 | sync(...args) {
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37 | const result = fn.apply(this, args);
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38 | if (isThenable(result)) throw new Error(message);
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39 | return result;
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40 | },
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41 |
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42 | async(...args) {
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43 | return Promise.resolve(fn.apply(this, args));
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44 | }
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45 |
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46 | });
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47 | }
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48 |
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49 | const withKind = _gensync()({
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50 | sync: cb => cb("sync"),
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51 | async: cb => cb("async")
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52 | });
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53 |
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54 | function forwardAsync(action, cb) {
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55 | const g = _gensync()(action);
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56 |
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57 | return withKind(kind => {
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58 | const adapted = g[kind];
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59 | return cb(adapted);
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60 | });
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61 | }
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62 |
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63 | const onFirstPause = _gensync()({
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64 | name: "onFirstPause",
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65 | arity: 2,
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66 | sync: function (item) {
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67 | return runGenerator.sync(item);
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68 | },
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69 | errback: function (item, firstPause, cb) {
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70 | let completed = false;
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71 | runGenerator.errback(item, (err, value) => {
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72 | completed = true;
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73 | cb(err, value);
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74 | });
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75 |
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76 | if (!completed) {
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77 | firstPause();
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78 | }
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79 | }
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80 | });
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81 |
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82 | exports.onFirstPause = onFirstPause;
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83 |
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84 | const waitFor = _gensync()({
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85 | sync: id,
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86 | async: id
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87 | });
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88 |
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89 | exports.waitFor = waitFor;
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90 |
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91 | function isThenable(val) {
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92 | return !!val && (typeof val === "object" || typeof val === "function") && !!val.then && typeof val.then === "function";
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93 | } |
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