villa/bld/es5/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) {
    var args = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        args[_i - 1] = arguments[_i];
    }
    return new Promise(function (resolve, reject) {
        fn.call.apply(fn, [undefined].concat(args, [function (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 () {
        var _this = this;
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        return new Promise(function (resolve, reject) {
            fn.call.apply(fn, [_this].concat(args, [function (error, value) {
                    if (error) {
                        reject(error);
                    }
                    else {
                        resolve(value);
                    }
                }]));
        });
    };
}
exports.async = async;
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