gistfile1.js

function bar() {
  return function(cb) {
		throw new Error('asdf')
		setImmediate(function() {
			cb()
		})
	}
}

function* foo() {
  // var paths = ['A.js', 'B.js']
  // var group = []
  // for (path in paths) {
  //   group.push(fs.readFile(path))
  // }
  // var files = yield group

  try {
	  return yield bar()
  } catch(e) {
  	console.log('inside: ', e.stack)
  }
}


(function run(generator) {
	var iterator = generator()
	var ret = iterator.next()
	try {
		ret.value(function(err, value) {
			console.log('end: ', iterator.next(ret.value))
		})
	} catch(e) {
		console.log('run inside: ', e.stack)
		iterator.throw(e)
	}
})(foo)