main
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Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
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Update repo after prototype presentation
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Property mode
set to
100644
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File size:
1.3 KB
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| 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.once = once;
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| 7 | var _async = require("./async.js");
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| 8 | function once(fn) {
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| 9 | let result;
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| 10 | let resultP;
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| 11 | let promiseReferenced = false;
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| 12 | return function* () {
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| 13 | if (!result) {
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| 14 | if (resultP) {
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| 15 | promiseReferenced = true;
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| 16 | return yield* (0, _async.waitFor)(resultP);
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| 17 | }
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| 18 | if (!(yield* (0, _async.isAsync)())) {
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| 19 | try {
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| 20 | result = {
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| 21 | ok: true,
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| 22 | value: yield* fn()
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| 23 | };
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| 24 | } catch (error) {
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| 25 | result = {
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| 26 | ok: false,
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| 27 | value: error
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| 28 | };
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| 29 | }
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| 30 | } else {
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| 31 | let resolve, reject;
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| 32 | resultP = new Promise((res, rej) => {
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| 33 | resolve = res;
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| 34 | reject = rej;
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| 35 | });
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| 36 | try {
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| 37 | result = {
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| 38 | ok: true,
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| 39 | value: yield* fn()
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| 40 | };
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| 41 | resultP = null;
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| 42 | if (promiseReferenced) resolve(result.value);
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| 43 | } catch (error) {
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| 44 | result = {
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| 45 | ok: false,
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| 46 | value: error
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| 47 | };
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| 48 | resultP = null;
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| 49 | if (promiseReferenced) reject(error);
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| 50 | }
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| 51 | }
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| 52 | }
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| 53 | if (result.ok) return result.value;else throw result.value;
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| 54 | };
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| 55 | }
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| 56 | 0 && 0;
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| 57 |
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| 58 | //# sourceMappingURL=functional.js.map
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