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| "use strict";
|
| Object.defineProperty(exports, "__esModule", {
| value: true
| });
| exports.once = once;
| var _async = require("./async.js");
| function once(fn) {
| let result;
| let resultP;
| let promiseReferenced = false;
| return function* () {
| if (!result) {
| if (resultP) {
| promiseReferenced = true;
| return yield* (0, _async.waitFor)(resultP);
| }
| if (!(yield* (0, _async.isAsync)())) {
| try {
| result = {
| ok: true,
| value: yield* fn()
| };
| } catch (error) {
| result = {
| ok: false,
| value: error
| };
| }
| } else {
| let resolve, reject;
| resultP = new Promise((res, rej) => {
| resolve = res;
| reject = rej;
| });
| try {
| result = {
| ok: true,
| value: yield* fn()
| };
| resultP = null;
| if (promiseReferenced) resolve(result.value);
| } catch (error) {
| result = {
| ok: false,
| value: error
| };
| resultP = null;
| if (promiseReferenced) reject(error);
| }
| }
| }
| if (result.ok) return result.value;else throw result.value;
| };
| }
| 0 && 0;
|
| //# sourceMappingURL=functional.js.map
|
|
