You're seeing that behaviour because you're unmarshaling into the same map you started with, and encoding/json doesn't zero existing maps before unmarshaling into them.
You see two members in the map because time.Now returns a time with a monotonic time but an unmarshaled time doesn't contain a monotonic time. This works OK: https://play.golang.org/p/KJk4iR3D3D On 27 November 2017 at 10:53, Henrik Johansson <dahankz...@gmail.com> wrote: > It seems that time.Time as keys exhibit the same issue: > https://play.golang.org/p/-_H3ZD6YLG > > Is this really intended or a bug? > > mån 27 nov. 2017 kl 11:25 skrev Henrik Johansson <dahankz...@gmail.com>: >> >> There is a discussion here >> https://groups.google.com/forum/#!searchin/golang-dev/json$20map/golang-dev/5gSHNrJQpUI/vZGSGRmUrC0J >> and an issue here: https://github.com/golang/go/issues/12146 >> >> At least the issue has an initial example with a value type key >> >> mån 27 nov. 2017 kl 11:21 skrev James <proglot...@gmail.com>: >>> >>> Think UnmarshalText needs to have a pointer receiver or you'll only be >>> modifying a copy of the struct >>> >>> On 27 November 2017 at 23:13, Henrik Johansson <dahankz...@gmail.com> >>> wrote: >>>> >>>> Hi, >>>> >>>> https://play.golang.org/p/bLiYSsKL_7 >>>> >>>> I have perhaps missed something simple or misunderstood the contract for >>>> MarshalText/UnmarshalText but it seems to me that it should work it just >>>> doesn't... :) >>>> >>>> If I uncomment the return of the parse error "BOOM" then I just get a >>>> new "default" key with 3 underscores. >>>> >>>> Anyone knows what I missed? >>>> >>>> Thx, >>>> Henrik >>>> >>>> -- >>>> 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. -- 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.
