package continuation

type Continuation struct {
    result interface{}
    err    error
    doneChan chan struct{}
}

func NewContinuation() *Continuation {
    return &Continuation{
        doneChan: make(chan struct{}),
    }
}

func (c *Continuation) Resume(result interface{}, err error) {
    c.result = result
    c.err = err
    close(c.doneChan)
}

func (c *Continuation) Wait() (interface{}, error) {
    <-c.doneChan
    return c.result, c.err
}