The dynamic type conversion needs to specify the exact type that was put into the interface (B in this case). You can convert it back to A afterwards: https://play.golang.org/p/jBRtR_8RloC
On Mon, 15 Apr 2019 at 11:32, Sankar P <sankar.curios...@gmail.com> wrote: > Playground url: https://play.golang.org/p/tDT7xCJJ_XN > > திங்., 15 ஏப்., 2019, பிற்பகல் 4:01 அன்று, Sankar < > sankar.curios...@gmail.com> எழுதியது: > >> I have the following go code: >> >> ``` >> type A map[string]interface{} >> type B map[string]interface{} >> >> func f(a A) { >> fmt.Println(a) >> } >> >> func main() { >> var b B >> b = make(map[string]interface{}) >> i := interface{}(b) >> f(i.(A)) >> } >> ``` >> >> This code panics when I try to convert the B instance to type A. What is >> the right way to do the cast here ? >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "golang-nuts" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/golang-nuts/f3jarN-BgC0/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> golang-nuts+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > > > -- > Sankar P > http://psankar.blogspot.com > > -- > 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. > For more options, visit https://groups.google.com/d/optout. > -- 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. For more options, visit https://groups.google.com/d/optout.
