Usage

1. yarn add babel-plugin-generator-bind-this -D

2. activate in .babelrc

{
  "plugins": ["babel-plugin-generator-bind-this"]
}

Why

1. generator cannot use arrow-function
2. check the special case below:
   in this case the generator in result1 cannot get class property bindValue "class value", but got "scope value", and result2 can get "class value"
3. generator.bind(this) by yourself or automatically by this plugin

const doSomething = (method) => {
  return {
    bindValue: 'scope value',
    method
  }
}

class Base {}

class Test extends Base {
  bindValue = 'class value'
  result1 = doSomething(function* (param) {
    console.log(param, this.bindValue)
  })

  result2 = doSomething(
    function* (param) {
      console.log(param, this.bindValue)
    }.bind(this)
  )
}

const ins = new Test()
ins.result1.method('case1').next()
ins.result2.method('case2').next()

Demo

yarn transform, check the output in transform/output.js