yq

Anthor async control flow by generator without promise.

No Promise

``js
const yq = require('yq')
const fs = require('fs')

let readFile = function *() {
var caller = yield
fs.readFile('example', { encoding: 'utf-8' }, function (err, content) {
if (err) {
caller.error(err)
} else {
caller.success(content)
}
})
}
`

Yield

`js
const yq = require('yq')
const readFile = yq.yield(require('fs').readFile)

yq(function *() {
var content = yield readFile('example', { encoding: 'utf-8' })
console.log(content) // ...
})
``