24 lines
706 B
JavaScript
24 lines
706 B
JavaScript
'use strict'
|
|
|
|
exports.fromCallback = function (fn) {
|
|
return Object.defineProperty(function (...args) {
|
|
if (typeof args[args.length - 1] === 'function') fn.apply(this, args)
|
|
else {
|
|
return new Promise((resolve, reject) => {
|
|
args.push((err, res) => (err != null) ? reject(err) : resolve(res))
|
|
fn.apply(this, args)
|
|
})
|
|
}
|
|
}, 'name', { value: fn.name })
|
|
}
|
|
|
|
exports.fromPromise = function (fn) {
|
|
return Object.defineProperty(function (...args) {
|
|
const cb = args[args.length - 1]
|
|
if (typeof cb !== 'function') return fn.apply(this, args)
|
|
else {
|
|
args.pop()
|
|
fn.apply(this, args).then(r => cb(null, r), cb)
|
|
}
|
|
}, 'name', { value: fn.name })
|
|
}
|