villa/bld/edge/function.js

Promise utilities for async/await-ready environment.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Call a Node.js-style asynchronous function and return a correspondent
 * promise.
 */
function call(fn, ...args) {
    return new Promise((resolve, reject) => {
        fn.call(undefined, ...args, (error, value) => {
            if (error) {
                reject(error);
            }
            else {
                resolve(value);
            }
        });
    });
}
exports.call = call;
/**
 * Wrap a Node.js-style asynchronous function to a function that returns
 * promise.
 */
function async(fn) {
    return function (...args) {
        return new Promise((resolve, reject) => {
            fn.call(this, ...args, (error, value) => {
                if (error) {
                    reject(error);
                }
                else {
                    resolve(value);
                }
            });
        });
    };
}
exports.async = async;
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