Catching async errors from eval using domain

问题

I'm trying to catch async errors with the npm eval module. It's very similar to the normal eval, except it utilizes node's vm module directly.

I just came across node's domain module. It allows me to catch async errors that occur within _eval.

However I checked the documentation and I can't find a done event for domain. How am I supposed to know when to resolve the promise?

var code = [
  "setTimeout(function () {",
  "  throw new Error('async error sim')",
  "}, 1000)"
].join('\n')

var domain = require('domain')
var _eval = require('eval')
var main = {}

var evalAsync = main.evalAsync = function (code, file) {
  return new Promise(function (resolve, reject) {
    var d = domain.create();
    d.on('error', function (e) {
      return reject(e)
    })
    var op = d.run(function () {
      return _eval(code, file, {}, true)
    })
    // return resolve(op)
  })
}

evalAsync(code, 'hi.js', {}, true)
  .catch(function (e) {
    console.log(e)
  })

Is there a way I can make the evalAsync module catch errors and return values correctly?

I've also tried this:

var op = d.run(function () {
  return _eval(code, file, {}, true)
})
return resolve(op)

来源：https://stackoverflow.com/questions/32195121/catching-async-errors-from-eval-using-domain