@typed/future/cjs/all.js

Asynchronous Future Values

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.all = void 0;
const disposable_1 = require("@typed/disposable");
const env_1 = require("@typed/env");
const fork_1 = require("./fork");
const Future_1 = require("./Future");
exports.all = (futures) => Future_1.Future.create((reject, resolve, environment) => {
    const hasValues = Array(futures.length).fill(false);
    const values = Array(futures.length);
    const disposable = disposable_1.Disposable.lazy();
    function left(a) {
        disposable.dispose();
        return reject(a);
    }
    function right(b, index) {
        hasValues[index] = true;
        values[index] = b;
        if (hasValues.every(Boolean)) {
            return resolve(values);
        }
        return disposable_1.Disposable.None;
    }
    futures.forEach((f, i) => {
        disposable.addDisposable(fork_1.fork(left, (b) => right(b, i), env_1.provide(f, environment)));
    });
    return disposable;
});
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