Async/Await-like pattern in Go to make structured concurrency easy and with less boilerplate

disclaimer: It is just a pattern that wraps Goroutine and channel. It is still Goroutine underneath. It is not bringing "coloring" to Go code. Functions still call other functions as normal functions, without the need to distinguish async/sync ones. Goroutine For beginners of Go who come from other "colored" languages like JavaScript, one big difference in Golang's mental model is Goroutine. func Add () int { a := 1 b := 2 var c int doneSignal := make ( chan struct {}, 1 ) go func () { // fire a