On Tuesday, August 23, 2016 at 1:25:03 AM UTC+8, con...@superhuman.com wrote: > > Hey All, > > I've been using a typedef of > > type MaybeTimestamp *int64 > > so we can JSON encode timestamps correctly, see > https://medium.com/coding-and-deploying-in-the-cloud/time-stamps-in-golang-abcaf581b72f > > for inspriation > > I was surprised that the following didn't work (see > https://play.golang.org/p/1QQylqTLkB): > > func NewMaybeTimestamp(t time.Time) MaybeTimestamp { > return &t.Unix() > } > > // fails with: > // tmp/sandbox449672725/main.go:14: cannot take the address of t.Unix() > > I can fix this by introducing a temporary variable: > > func NewMaybeTimestamp(t time.Time) MaybeTimestamp { > temp := t.Unix() > return &temp > } > > Seeing as this is the obvious solution to this problem, I was pretty > disappointed that the compiler couldn't insert the temporary for me. > > Is this something that should change, or is it just a limitation > hard-coded by the compatibility guarantee? >
Direct values, including const and temp values, are not addressable. But there is an exception which is described in Ian's answer. > > Conrad > > -- 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.
