I was playing around with trying to use generics to de-interface-ify a fuzzer implementation, and I ran into some stumbling blocks.
is it possible to perform type switches? It seems the answer is currently no (example <https://go2goplay.golang.org/p/p3PRvsXAuXD>, design doc reference <https://go.googlesource.com/proposal/+/refs/heads/master/design/go2draft-type-parameters.md#identifying-the-matched-predeclared-type>). Maybe there's a better way to handle the following? type Primitive interface { type int, string } func Randomize(type F Primitive)(f F, r *rand.Rand) F { switch v := (interface{})(f).(type) { case string: return fmt.Sprintf("%s--%d", v, r.Int()) case int: return v + r.Int() default: panic(fmt.Sprintf("I don't know about type %T!\n", v)) } } func main() { r := rand.New(rand.NewSource(1)) fmt.Println(Randomize(int)(1, r)) } Thanks, Josh -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAJoEjeXcjS1xBhsPM_CLA_zBwS-e0WdA%3D4ngQnRz6daReXeR7g%40mail.gmail.com.
