On Saturday, June 25, 2016 at 3:34:57 PM UTC-4, Val wrote: > > Hello > It seems that this code <https://play.golang.org/p/C5jbcieUS6> doesn't > compile : > > func main() { > var err error > err = f() > } > > *prog.go:8: err declared and not used* > > > but this one <https://play.golang.org/p/Y5zc4sLbtE> does : > > func main() { > var err error > g := func() { > err = f() > } > g() > } > > Is the function binding regarded as a "use"? Or does escape analysis > decide to not check too deep about never-read variables? > > Whether expected or not, I supposed this compiler behavior won't change, > because of the Go1 compatibility promise. > > Cheers > Val >
Assignment isn't "use". Doesn't matter if it's a function binding or just x = 3, if you don't use the left side of your "=" later it's a compile error. -- 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.
